drivers/video/rockchip/rk_fb.c

   1 /*
   2  * drivers/video/rockchip/rk_fb.c
   3  *
   4  * Copyright (C) ROCKCHIP, Inc.
   5  * Author:yxj<yxj@rock-chips.com>
   6  * This software is licensed under the terms of the GNU General Public
   7  * License version 2, as published by the Free Software Foundation, and
   8  * may be copied, distributed, and modified under those terms.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  */
  15
  16 #include <linux/module.h>
  17 #include <linux/kernel.h>
  18 #include <linux/errno.h>
  19 #include <linux/string.h>
  20 #include <linux/mm.h>
  21 #include <linux/slab.h>
  22 #include <linux/delay.h>
  23 #include <linux/device.h>
  24 #include <linux/kthread.h>
  25 #include <linux/fb.h>
  26 #include <linux/init.h>
  27 #include <linux/vmalloc.h>
  28 #include <asm/div64.h>
  29 #include <linux/uaccess.h>
  30 #include <linux/rk_fb.h>
  31 #include <linux/linux_logo.h>
  32 #include <linux/dma-mapping.h>
  33 #include <linux/regulator/consumer.h>
  34
  35 #include "bmp_helper.h"
  36
  37 #if defined(CONFIG_RK_HDMI)
  38 #include "hdmi/rockchip-hdmi.h"
  39 #endif
  40
  41 #if defined(CONFIG_ROCKCHIP_RGA) || defined(CONFIG_ROCKCHIP_RGA2)
  42 #include "rga/rga.h"
  43 #endif
  44
  45 #ifdef CONFIG_OF
  46 #include <linux/of.h>
  47 #include <linux/of_platform.h>
  48 #include <linux/of_gpio.h>
  49 #include <video/of_display_timing.h>
  50 #include <video/display_timing.h>
  51 #include <dt-bindings/rkfb/rk_fb.h>
  52 #endif
  53
  54 #if defined(CONFIG_ION_ROCKCHIP)
  55 #include <linux/rockchip_ion.h>
  56 #include <linux/rockchip-iovmm.h>
  57 #include <linux/dma-buf.h>
  58 #include <linux/highmem.h>
  59 #endif
  60
  61 #define H_USE_FENCE 1
  62 /* #define FB_ROATE_BY_KERNEL 1 */
  63
  64 static int hdmi_switch_complete;
  65 static struct platform_device *fb_pdev;
  66
  67 #if defined(CONFIG_FB_MIRRORING)
  68 int (*video_data_to_mirroring) (struct fb_info *info, u32 yuv_phy[2]);
  69 EXPORT_SYMBOL(video_data_to_mirroring);
  70 #endif
  71
  72 extern phys_addr_t uboot_logo_base;
  73 extern phys_addr_t uboot_logo_size;
  74 extern phys_addr_t uboot_logo_offset;
  75 static struct rk_fb_trsm_ops *trsm_lvds_ops;
  76 static struct rk_fb_trsm_ops *trsm_edp_ops;
  77 static struct rk_fb_trsm_ops *trsm_mipi_ops;
  78 static int uboot_logo_on;
  79 int support_uboot_display(void)
  80 {
  81         return uboot_logo_on;
  82 }
  83
  84 int rk_fb_get_display_policy(void)
  85 {
  86         struct rk_fb *rk_fb;
  87
  88         if (fb_pdev) {
  89                 rk_fb = platform_get_drvdata(fb_pdev);
  90                 return rk_fb->disp_policy;
  91         } else {
  92                 return DISPLAY_POLICY_SDK;
  93         }
  94 }
  95
  96 int rk_fb_trsm_ops_register(struct rk_fb_trsm_ops *ops, int type)
  97 {
  98         switch (type) {
  99         case SCREEN_RGB:
 100         case SCREEN_LVDS:
 101         case SCREEN_DUAL_LVDS:
 102                 trsm_lvds_ops = ops;
 103                 break;
 104         case SCREEN_EDP:
 105                 trsm_edp_ops = ops;
 106                 break;
 107         case SCREEN_MIPI:
 108         case SCREEN_DUAL_MIPI:
 109                 trsm_mipi_ops = ops;
 110                 break;
 111         default:
 112                 printk(KERN_WARNING "%s:un supported transmitter:%d!\n",
 113                        __func__, type);
 114                 break;
 115         }
 116         return 0;
 117 }
 118
 119 struct rk_fb_trsm_ops *rk_fb_trsm_ops_get(int type)
 120 {
 121         struct rk_fb_trsm_ops *ops;
 122         switch (type) {
 123         case SCREEN_RGB:
 124         case SCREEN_LVDS:
 125         case SCREEN_DUAL_LVDS:
 126                 ops = trsm_lvds_ops;
 127                 break;
 128         case SCREEN_EDP:
 129                 ops = trsm_edp_ops;
 130                 break;
 131         case SCREEN_MIPI:
 132         case SCREEN_DUAL_MIPI:
 133                 ops = trsm_mipi_ops;
 134                 break;
 135         default:
 136                 ops = NULL;
 137                 printk(KERN_WARNING "%s:un supported transmitter:%d!\n",
 138                        __func__, type);
 139                 break;
 140         }
 141         return ops;
 142 }
 143
 144 int rk_fb_pixel_width(int data_format)
 145 {
 146         int pixel_width;
 147         switch (data_format) {
 148         case XBGR888:
 149         case ABGR888:
 150         case ARGB888:
 151         case FBDC_ARGB_888:
 152         case FBDC_ABGR_888:
 153         case FBDC_RGBX_888:
 154                 pixel_width = 4 * 8;
 155                 break;
 156         case RGB888:
 157                 pixel_width = 3 * 8;
 158                 break;
 159         case RGB565:
 160         case FBDC_RGB_565:
 161                 pixel_width = 2 * 8;
 162                 break;
 163         case YUV422:
 164         case YUV420:
 165         case YUV420_NV21:
 166         case YUV444:
 167                 pixel_width = 1 * 8;
 168                 break;
 169         case YUV422_A:
 170         case YUV420_A:
 171         case YUV444_A:
 172                 pixel_width = 8;
 173                 break;
 174         default:
 175                 printk(KERN_WARNING "%s:un supported format:0x%x\n",
 176                        __func__, data_format);
 177                 return -EINVAL;
 178         }
 179         return pixel_width;
 180 }
 181
 182 static int rk_fb_data_fmt(int data_format, int bits_per_pixel)
 183 {
 184         int fb_data_fmt;
 185         if (data_format) {
 186                 switch (data_format) {
 187                 case HAL_PIXEL_FORMAT_RGBX_8888:
 188                         fb_data_fmt = XBGR888;
 189                         break;
 190                 case HAL_PIXEL_FORMAT_RGBA_8888:
 191                         fb_data_fmt = ABGR888;
 192                         break;
 193                 case HAL_PIXEL_FORMAT_BGRA_8888:
 194                         fb_data_fmt = ARGB888;
 195                         break;
 196                 case HAL_PIXEL_FORMAT_RGB_888:
 197                         fb_data_fmt = RGB888;
 198                         break;
 199                 case HAL_PIXEL_FORMAT_RGB_565:
 200                         fb_data_fmt = RGB565;
 201                         break;
 202                 case HAL_PIXEL_FORMAT_YCbCr_422_SP:     /* yuv422 */
 203                         fb_data_fmt = YUV422;
 204                         break;
 205                 case HAL_PIXEL_FORMAT_YCrCb_420_SP:     /* YUV420---vuvuvu */
 206                         fb_data_fmt = YUV420_NV21;
 207                         break;
 208                 case HAL_PIXEL_FORMAT_YCrCb_NV12:       /* YUV420---uvuvuv */
 209                         fb_data_fmt = YUV420;
 210                         break;
 211                 case HAL_PIXEL_FORMAT_YCrCb_444:        /* yuv444 */
 212                         fb_data_fmt = YUV444;
 213                         break;
 214                 case HAL_PIXEL_FORMAT_YCrCb_NV12_10:    /* yuv444 */
 215                         fb_data_fmt = YUV420_A;
 216                         break;
 217                 case HAL_PIXEL_FORMAT_YCbCr_422_SP_10:  /* yuv444 */
 218                         fb_data_fmt = YUV422_A;
 219                         break;
 220                 case HAL_PIXEL_FORMAT_YCrCb_420_SP_10:  /* yuv444 */
 221                         fb_data_fmt = YUV444_A;
 222                         break;
 223                 case HAL_PIXEL_FORMAT_FBDC_RGB565:      /* fbdc rgb565*/
 224                         fb_data_fmt = FBDC_RGB_565;
 225                         break;
 226                 case HAL_PIXEL_FORMAT_FBDC_U8U8U8U8:    /* fbdc argb888 */
 227                         fb_data_fmt = FBDC_ARGB_888;
 228                         break;
 229                 case HAL_PIXEL_FORMAT_FBDC_RGBA888:     /* fbdc abgr888 */
 230                         fb_data_fmt = FBDC_ABGR_888;
 231                         break;
 232                 case HAL_PIXEL_FORMAT_FBDC_U8U8U8:      /* fbdc rgb888 */
 233                         fb_data_fmt = FBDC_RGBX_888;
 234                         break;
 235                 default:
 236                         printk(KERN_WARNING "%s:un supported format:0x%x\n",
 237                                __func__, data_format);
 238                         return -EINVAL;
 239                 }
 240         } else {
 241                 switch (bits_per_pixel) {
 242                 case 32:
 243                         fb_data_fmt = ARGB888;
 244                         break;
 245                 case 24:
 246                         fb_data_fmt = RGB888;
 247                         break;
 248                 case 16:
 249                         fb_data_fmt = RGB565;
 250                         break;
 251                 default:
 252                         printk(KERN_WARNING
 253                                "%s:un supported bits_per_pixel:%d\n", __func__,
 254                                bits_per_pixel);
 255                         break;
 256                 }
 257         }
 258         return fb_data_fmt;
 259 }
 260
 261 /*
 262  * rk display power control parse from dts
 263  */
 264 int rk_disp_pwr_ctr_parse_dt(struct rk_lcdc_driver *dev_drv)
 265 {
 266         struct device_node *root = of_get_child_by_name(dev_drv->dev->of_node,
 267                                                         "power_ctr");
 268         struct device_node *child;
 269         struct rk_disp_pwr_ctr_list *pwr_ctr;
 270         struct list_head *pos;
 271         enum of_gpio_flags flags;
 272         u32 val = 0;
 273         u32 debug = 0;
 274         int ret;
 275
 276         INIT_LIST_HEAD(&dev_drv->pwrlist_head);
 277         if (!root) {
 278                 dev_err(dev_drv->dev, "can't find power_ctr node for lcdc%d\n",
 279                         dev_drv->id);
 280                 return -ENODEV;
 281         }
 282
 283         for_each_child_of_node(root, child) {
 284                 pwr_ctr = kmalloc(sizeof(struct rk_disp_pwr_ctr_list),
 285                                   GFP_KERNEL);
 286                 strcpy(pwr_ctr->pwr_ctr.name, child->name);
 287                 if (!of_property_read_u32(child, "rockchip,power_type", &val)) {
 288                         if (val == GPIO) {
 289                                 pwr_ctr->pwr_ctr.type = GPIO;
 290                                 pwr_ctr->pwr_ctr.gpio = of_get_gpio_flags(child, 0, &flags);
 291                                 if (!gpio_is_valid(pwr_ctr->pwr_ctr.gpio)) {
 292                                         dev_err(dev_drv->dev, "%s ivalid gpio\n",
 293                                                 child->name);
 294                                         return -EINVAL;
 295                                 }
 296                                 pwr_ctr->pwr_ctr.atv_val = !(flags & OF_GPIO_ACTIVE_LOW);
 297                                 ret = gpio_request(pwr_ctr->pwr_ctr.gpio,
 298                                                    child->name);
 299                                 if (ret) {
 300                                         dev_err(dev_drv->dev,
 301                                                 "request %s gpio fail:%d\n",
 302                                                 child->name, ret);
 303                                 }
 304
 305                         } else {
 306                                 pwr_ctr->pwr_ctr.type = REGULATOR;
 307                                 pwr_ctr->pwr_ctr.rgl_name = NULL;
 308                                 ret = of_property_read_string(child, "rockchip,regulator_name",
 309                                                              &(pwr_ctr->pwr_ctr.rgl_name));
 310                                 if (ret || IS_ERR_OR_NULL(pwr_ctr->pwr_ctr.rgl_name))
 311                                         dev_err(dev_drv->dev, "get regulator name failed!\n");
 312                                 if (!of_property_read_u32(child, "rockchip,regulator_voltage", &val))
 313                                         pwr_ctr->pwr_ctr.volt = val;
 314                                 else
 315                                         pwr_ctr->pwr_ctr.volt = 0;
 316                         }
 317                 };
 318
 319                 if (!of_property_read_u32(child, "rockchip,delay", &val))
 320                         pwr_ctr->pwr_ctr.delay = val;
 321                 else
 322                         pwr_ctr->pwr_ctr.delay = 0;
 323                 list_add_tail(&pwr_ctr->list, &dev_drv->pwrlist_head);
 324         }
 325
 326         of_property_read_u32(root, "rockchip,debug", &debug);
 327
 328         if (debug) {
 329                 list_for_each(pos, &dev_drv->pwrlist_head) {
 330                         pwr_ctr = list_entry(pos, struct rk_disp_pwr_ctr_list,
 331                                              list);
 332                         printk(KERN_INFO "pwr_ctr_name:%s\n"
 333                                "pwr_type:%s\n"
 334                                "gpio:%d\n"
 335                                "atv_val:%d\n"
 336                                "delay:%d\n\n",
 337                                pwr_ctr->pwr_ctr.name,
 338                                (pwr_ctr->pwr_ctr.type == GPIO) ? "gpio" : "regulator",
 339                                pwr_ctr->pwr_ctr.gpio,
 340                                pwr_ctr->pwr_ctr.atv_val,
 341                                pwr_ctr->pwr_ctr.delay);
 342                 }
 343         }
 344
 345         return 0;
 346
 347 }
 348
 349 int rk_disp_pwr_enable(struct rk_lcdc_driver *dev_drv)
 350 {
 351         struct list_head *pos;
 352         struct rk_disp_pwr_ctr_list *pwr_ctr_list;
 353         struct pwr_ctr *pwr_ctr;
 354         struct regulator *regulator_lcd = NULL;
 355         int count = 10;
 356
 357         if (list_empty(&dev_drv->pwrlist_head))
 358                 return 0;
 359         list_for_each(pos, &dev_drv->pwrlist_head) {
 360                 pwr_ctr_list = list_entry(pos, struct rk_disp_pwr_ctr_list,
 361                                           list);
 362                 pwr_ctr = &pwr_ctr_list->pwr_ctr;
 363                 if (pwr_ctr->type == GPIO) {
 364                         gpio_direction_output(pwr_ctr->gpio, pwr_ctr->atv_val);
 365                         mdelay(pwr_ctr->delay);
 366                 } else if (pwr_ctr->type == REGULATOR) {
 367                         if (pwr_ctr->rgl_name)
 368                                 regulator_lcd = regulator_get(NULL, pwr_ctr->rgl_name);
 369                         if (regulator_lcd == NULL) {
 370                                 dev_err(dev_drv->dev,
 371                                         "%s: regulator get failed,regulator name:%s\n",
 372                                         __func__, pwr_ctr->rgl_name);
 373                                 continue;
 374                         }
 375                         regulator_set_voltage(regulator_lcd, pwr_ctr->volt, pwr_ctr->volt);
 376                         while (!regulator_is_enabled(regulator_lcd)) {
 377                                 if (regulator_enable(regulator_lcd) == 0 || count == 0)
 378                                         break;
 379                                 else
 380                                         dev_err(dev_drv->dev,
 381                                                 "regulator_enable failed,count=%d\n",
 382                                                 count);
 383                                 count--;
 384                         }
 385                         regulator_put(regulator_lcd);
 386                         msleep(pwr_ctr->delay);
 387                 }
 388         }
 389
 390         return 0;
 391 }
 392
 393 int rk_disp_pwr_disable(struct rk_lcdc_driver *dev_drv)
 394 {
 395         struct list_head *pos;
 396         struct rk_disp_pwr_ctr_list *pwr_ctr_list;
 397         struct pwr_ctr *pwr_ctr;
 398         struct regulator *regulator_lcd = NULL;
 399         int count = 10;
 400
 401         if (list_empty(&dev_drv->pwrlist_head))
 402                 return 0;
 403         list_for_each(pos, &dev_drv->pwrlist_head) {
 404                 pwr_ctr_list = list_entry(pos, struct rk_disp_pwr_ctr_list,
 405                                           list);
 406                 pwr_ctr = &pwr_ctr_list->pwr_ctr;
 407                 if (pwr_ctr->type == GPIO) {
 408                         gpio_set_value(pwr_ctr->gpio, !pwr_ctr->atv_val);
 409                 } else if (pwr_ctr->type == REGULATOR) {
 410                         if (pwr_ctr->rgl_name)
 411                                 regulator_lcd = regulator_get(NULL, pwr_ctr->rgl_name);
 412                         if (regulator_lcd == NULL) {
 413                                 dev_err(dev_drv->dev,
 414                                         "%s: regulator get failed,regulator name:%s\n",
 415                                         __func__, pwr_ctr->rgl_name);
 416                                 continue;
 417                         }
 418                         while (regulator_is_enabled(regulator_lcd) > 0) {
 419                                 if (regulator_disable(regulator_lcd) == 0 || count == 0)
 420                                         break;
 421                                 else
 422                                         dev_err(dev_drv->dev,
 423                                                 "regulator_disable failed,count=%d\n",
 424                                                 count);
 425                                 count--;
 426                         }
 427                         regulator_put(regulator_lcd);
 428                 }
 429         }
 430         return 0;
 431 }
 432
 433 int rk_fb_video_mode_from_timing(const struct display_timing *dt,
 434                                  struct rk_screen *screen)
 435 {
 436         screen->mode.pixclock = dt->pixelclock.typ;
 437         screen->mode.left_margin = dt->hback_porch.typ;
 438         screen->mode.right_margin = dt->hfront_porch.typ;
 439         screen->mode.xres = dt->hactive.typ;
 440         screen->mode.hsync_len = dt->hsync_len.typ;
 441         screen->mode.upper_margin = dt->vback_porch.typ;
 442         screen->mode.lower_margin = dt->vfront_porch.typ;
 443         screen->mode.yres = dt->vactive.typ;
 444         screen->mode.vsync_len = dt->vsync_len.typ;
 445         screen->type = dt->screen_type;
 446         screen->lvds_format = dt->lvds_format;
 447         screen->face = dt->face;
 448         screen->color_mode = dt->color_mode;
 449         screen->dsp_lut = dt->dsp_lut;
 450         screen->cabc_lut = dt->cabc_lut;
 451
 452         if (dt->flags & DISPLAY_FLAGS_PIXDATA_POSEDGE)
 453                 screen->pin_dclk = 1;
 454         else
 455                 screen->pin_dclk = 0;
 456         if (dt->flags & DISPLAY_FLAGS_HSYNC_HIGH)
 457                 screen->pin_hsync = 1;
 458         else
 459                 screen->pin_hsync = 0;
 460         if (dt->flags & DISPLAY_FLAGS_VSYNC_HIGH)
 461                 screen->pin_vsync = 1;
 462         else
 463                 screen->pin_vsync = 0;
 464         if (dt->flags & DISPLAY_FLAGS_DE_HIGH)
 465                 screen->pin_den = 1;
 466         else
 467                 screen->pin_den = 0;
 468
 469         return 0;
 470
 471 }
 472
 473 int rk_fb_prase_timing_dt(struct device_node *np, struct rk_screen *screen)
 474 {
 475         struct display_timings *disp_timing;
 476         struct display_timing *dt;
 477         disp_timing = of_get_display_timings(np);
 478         if (!disp_timing) {
 479                 pr_err("parse display timing err\n");
 480                 return -EINVAL;
 481         }
 482         dt = display_timings_get(disp_timing, disp_timing->native_mode);
 483         rk_fb_video_mode_from_timing(dt, screen);
 484         return 0;
 485
 486 }
 487
 488 int rk_fb_calc_fps(struct rk_screen *screen, u32 pixclock)
 489 {
 490         int x, y;
 491         unsigned long long hz;
 492         if (!screen) {
 493                 printk(KERN_ERR "%s:null screen!\n", __func__);
 494                 return 0;
 495         }
 496         x = screen->mode.xres + screen->mode.left_margin +
 497             screen->mode.right_margin + screen->mode.hsync_len;
 498         y = screen->mode.yres + screen->mode.upper_margin +
 499             screen->mode.lower_margin + screen->mode.vsync_len;
 500
 501         hz = 1000000000000ULL;  /* 1e12 picoseconds per second */
 502
 503         hz += (x * y) / 2;
 504         do_div(hz, x * y);      /* divide by x * y with rounding */
 505
 506         hz += pixclock / 2;
 507         do_div(hz, pixclock);   /* divide by pixclock with rounding */
 508
 509         return hz;
 510 }
 511
 512 char *get_format_string(enum data_format format, char *fmt)
 513 {
 514         if (!fmt)
 515                 return NULL;
 516         switch (format) {
 517         case ARGB888:
 518                 strcpy(fmt, "ARGB888");
 519                 break;
 520         case RGB888:
 521                 strcpy(fmt, "RGB888");
 522                 break;
 523         case RGB565:
 524                 strcpy(fmt, "RGB565");
 525                 break;
 526         case YUV420:
 527         case YUV420_NV21:
 528                 strcpy(fmt, "YUV420");
 529                 break;
 530         case YUV422:
 531                 strcpy(fmt, "YUV422");
 532                 break;
 533         case YUV444:
 534                 strcpy(fmt, "YUV444");
 535                 break;
 536         case YUV420_A:
 537                 strcpy(fmt, "YUV420_A");
 538                 break;
 539         case YUV422_A:
 540                 strcpy(fmt, "YUV422_A");
 541                 break;
 542         case YUV444_A:
 543                 strcpy(fmt, "YUV444_A");
 544                 break;
 545         case XRGB888:
 546                 strcpy(fmt, "XRGB888");
 547                 break;
 548         case XBGR888:
 549                 strcpy(fmt, "XBGR888");
 550                 break;
 551         case ABGR888:
 552                 strcpy(fmt, "ABGR888");
 553                 break;
 554         case FBDC_RGB_565:
 555                 strcpy(fmt, "FBDC_RGB_565");
 556                 break;
 557         case FBDC_ARGB_888:
 558         case FBDC_ABGR_888:
 559                 strcpy(fmt, "FBDC_ARGB_888");
 560                 break;
 561         case FBDC_RGBX_888:
 562                 strcpy(fmt, "FBDC_RGBX_888");
 563                 break;
 564         default:
 565                 strcpy(fmt, "invalid");
 566                 break;
 567         }
 568
 569         return fmt;
 570
 571 }
 572
 573 /*
 574  * this is for hdmi
 575  * name: lcdc device name ,lcdc0 , lcdc1
 576  */
 577 struct rk_lcdc_driver *rk_get_lcdc_drv(char *name)
 578 {
 579         struct rk_fb *inf = NULL;
 580         struct rk_lcdc_driver *dev_drv = NULL;
 581         int i = 0;
 582
 583         if (likely(fb_pdev))
 584                 inf = platform_get_drvdata(fb_pdev);
 585         else
 586                 return NULL;
 587
 588         for (i = 0; i < inf->num_lcdc; i++) {
 589                 if (!strcmp(inf->lcdc_dev_drv[i]->name, name)) {
 590                         dev_drv = inf->lcdc_dev_drv[i];
 591                         break;
 592                 }
 593         }
 594
 595         return dev_drv;
 596 }
 597
 598 static struct rk_lcdc_driver *rk_get_prmry_lcdc_drv(void)
 599 {
 600         struct rk_fb *inf = NULL;
 601         struct rk_lcdc_driver *dev_drv = NULL;
 602         int i = 0;
 603
 604         if (likely(fb_pdev))
 605                 inf = platform_get_drvdata(fb_pdev);
 606         else
 607                 return NULL;
 608
 609         for (i = 0; i < inf->num_lcdc; i++) {
 610                 if (inf->lcdc_dev_drv[i]->prop == PRMRY) {
 611                         dev_drv = inf->lcdc_dev_drv[i];
 612                         break;
 613                 }
 614         }
 615
 616         return dev_drv;
 617 }
 618
 619 static __maybe_unused struct rk_lcdc_driver *rk_get_extend_lcdc_drv(void)
 620 {
 621         struct rk_fb *inf = NULL;
 622         struct rk_lcdc_driver *dev_drv = NULL;
 623         int i = 0;
 624
 625         if (likely(fb_pdev))
 626                 inf = platform_get_drvdata(fb_pdev);
 627         else
 628                 return NULL;
 629
 630         for (i = 0; i < inf->num_lcdc; i++) {
 631                 if (inf->lcdc_dev_drv[i]->prop == EXTEND) {
 632                         dev_drv = inf->lcdc_dev_drv[i];
 633                         break;
 634                 }
 635         }
 636
 637         return dev_drv;
 638 }
 639
 640 /*
 641  * get one frame time of the prmry screen, unit: us
 642  */
 643 u32 rk_fb_get_prmry_screen_ft(void)
 644 {
 645         struct rk_lcdc_driver *dev_drv = rk_get_prmry_lcdc_drv();
 646         uint32_t htotal, vtotal, pixclock_ps;
 647         u64 pix_total, ft_us;
 648
 649         if (unlikely(!dev_drv))
 650                 return 0;
 651
 652         pixclock_ps = dev_drv->pixclock;
 653
 654         vtotal = (dev_drv->cur_screen->mode.upper_margin +
 655                  dev_drv->cur_screen->mode.lower_margin +
 656                  dev_drv->cur_screen->mode.yres +
 657                  dev_drv->cur_screen->mode.vsync_len);
 658         htotal = (dev_drv->cur_screen->mode.left_margin +
 659                  dev_drv->cur_screen->mode.right_margin +
 660                  dev_drv->cur_screen->mode.xres +
 661                  dev_drv->cur_screen->mode.hsync_len);
 662         pix_total = htotal * vtotal;
 663         ft_us = pix_total * pixclock_ps;
 664         do_div(ft_us, 1000000);
 665         if (dev_drv->frame_time.ft == 0)
 666                 dev_drv->frame_time.ft = ft_us;
 667
 668         ft_us = dev_drv->frame_time.framedone_t - dev_drv->frame_time.last_framedone_t;
 669         do_div(ft_us, 1000);
 670         ft_us = min(dev_drv->frame_time.ft, (u32)ft_us);
 671         if (ft_us != 0)
 672                 dev_drv->frame_time.ft = ft_us;
 673
 674         return dev_drv->frame_time.ft;
 675 }
 676
 677 /*
 678  * get the vblanking time of the prmry screen, unit: us
 679  */
 680 u32 rk_fb_get_prmry_screen_vbt(void)
 681 {
 682         struct rk_lcdc_driver *dev_drv = rk_get_prmry_lcdc_drv();
 683         uint32_t htotal, vblank, pixclock_ps;
 684         u64 pix_blank, vbt_us;
 685
 686         if (unlikely(!dev_drv))
 687                 return 0;
 688
 689         pixclock_ps = dev_drv->pixclock;
 690
 691         htotal = (dev_drv->cur_screen->mode.left_margin +
 692                  dev_drv->cur_screen->mode.right_margin +
 693                  dev_drv->cur_screen->mode.xres +
 694                  dev_drv->cur_screen->mode.hsync_len);
 695         vblank = (dev_drv->cur_screen->mode.upper_margin +
 696                  dev_drv->cur_screen->mode.lower_margin +
 697                  dev_drv->cur_screen->mode.vsync_len);
 698         pix_blank = htotal * vblank;
 699         vbt_us = pix_blank * pixclock_ps;
 700         do_div(vbt_us, 1000000);
 701         return (u32)vbt_us;
 702 }
 703
 704 /*
 705  * get the frame done time of the prmry screen, unit: us
 706  */
 707 u64 rk_fb_get_prmry_screen_framedone_t(void)
 708 {
 709         struct rk_lcdc_driver *dev_drv = rk_get_prmry_lcdc_drv();
 710
 711         if (unlikely(!dev_drv))
 712                 return 0;
 713         else
 714                 return dev_drv->frame_time.framedone_t;
 715 }
 716
 717 /*
 718  * set prmry screen status
 719  */
 720 int rk_fb_set_prmry_screen_status(int status)
 721 {
 722         struct rk_lcdc_driver *dev_drv = rk_get_prmry_lcdc_drv();
 723         struct rk_screen *screen;
 724
 725         if (unlikely(!dev_drv))
 726                 return 0;
 727
 728         screen = dev_drv->cur_screen;
 729         switch (status) {
 730         case SCREEN_PREPARE_DDR_CHANGE:
 731                 if (screen->type == SCREEN_MIPI
 732                         || screen->type == SCREEN_DUAL_MIPI) {
 733                         if (dev_drv->trsm_ops->dsp_pwr_off)
 734                                 dev_drv->trsm_ops->dsp_pwr_off();
 735                 }
 736                 break;
 737         case SCREEN_UNPREPARE_DDR_CHANGE:
 738                 if (screen->type == SCREEN_MIPI
 739                         || screen->type == SCREEN_DUAL_MIPI) {
 740                         if (dev_drv->trsm_ops->dsp_pwr_on)
 741                                 dev_drv->trsm_ops->dsp_pwr_on();
 742                 }
 743                 break;
 744         default:
 745                 break;
 746         }
 747
 748         return 0;
 749 }
 750
 751 u32 rk_fb_get_prmry_screen_pixclock(void)
 752 {
 753         struct rk_lcdc_driver *dev_drv = rk_get_prmry_lcdc_drv();
 754
 755         if (unlikely(!dev_drv))
 756                 return 0;
 757         else
 758                 return dev_drv->pixclock;
 759 }
 760
 761 int rk_fb_poll_prmry_screen_vblank(void)
 762 {
 763         struct rk_lcdc_driver *dev_drv = rk_get_prmry_lcdc_drv();
 764
 765         if (likely(dev_drv)) {
 766                 if (dev_drv->ops->poll_vblank)
 767                         return dev_drv->ops->poll_vblank(dev_drv);
 768                 else
 769                         return RK_LF_STATUS_NC;
 770         } else {
 771                 return RK_LF_STATUS_NC;
 772         }
 773 }
 774
 775 bool rk_fb_poll_wait_frame_complete(void)
 776 {
 777         uint32_t timeout = RK_LF_MAX_TIMEOUT;
 778         struct rk_lcdc_driver *dev_drv = rk_get_prmry_lcdc_drv();
 779
 780         if (likely(dev_drv)) {
 781                 if (dev_drv->ops->set_irq_to_cpu)
 782                         dev_drv->ops->set_irq_to_cpu(dev_drv, 0);
 783         }
 784
 785         if (rk_fb_poll_prmry_screen_vblank() == RK_LF_STATUS_NC) {
 786                 if (likely(dev_drv)) {
 787                         if (dev_drv->ops->set_irq_to_cpu)
 788                                 dev_drv->ops->set_irq_to_cpu(dev_drv, 1);
 789                 }
 790                 return false;
 791         }
 792         while (!(rk_fb_poll_prmry_screen_vblank() == RK_LF_STATUS_FR) && --timeout)
 793                 ;
 794         while (!(rk_fb_poll_prmry_screen_vblank() == RK_LF_STATUS_FC) && --timeout)
 795                 ;
 796         if (likely(dev_drv)) {
 797                 if (dev_drv->ops->set_irq_to_cpu)
 798                         dev_drv->ops->set_irq_to_cpu(dev_drv, 1);
 799         }
 800
 801         return true;
 802 }
 803
 804
 805 /* rk_fb_get_sysmmu_device_by_compatible()
 806  * @compt: dts device compatible name
 807  * return value: success: pointer to the device inside of platform device
 808  *               fail: NULL
 809  */
 810 struct device *rk_fb_get_sysmmu_device_by_compatible(const char *compt)
 811 {
 812         struct device_node *dn = NULL;
 813         struct platform_device *pd = NULL;
 814         struct device *ret = NULL ;
 815
 816         dn = of_find_compatible_node(NULL, NULL, compt);
 817         if (!dn) {
 818                 printk("can't find device node %s \r\n", compt);
 819                 return NULL;
 820         }
 821
 822         pd = of_find_device_by_node(dn);
 823         if (!pd) {
 824                 printk("can't find platform device in device node %s \r\n", compt);
 825                 return  NULL;
 826         }
 827         ret = &pd->dev;
 828
 829         return ret;
 830 }
 831
 832 #ifdef CONFIG_IOMMU_API
 833 void rk_fb_platform_set_sysmmu(struct device *sysmmu, struct device *dev)
 834 {
 835         dev->archdata.iommu = sysmmu;
 836 }
 837 #else
 838 void rk_fb_platform_set_sysmmu(struct device *sysmmu, struct device *dev)
 839 {
 840
 841 }
 842 #endif
 843
 844 static int rk_fb_open(struct fb_info *info, int user)
 845 {
 846         struct rk_fb_par *fb_par = (struct rk_fb_par *)info->par;
 847         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
 848         int win_id;
 849
 850         win_id = dev_drv->ops->fb_get_win_id(dev_drv, info->fix.id);
 851         fb_par->state++;
 852         /* if this win aready opened ,no need to reopen */
 853         if (dev_drv->win[win_id]->state)
 854                 return 0;
 855         else
 856                 dev_drv->ops->open(dev_drv, win_id, 1);
 857         return 0;
 858 }
 859
 860 static int rk_fb_close(struct fb_info *info, int user)
 861 {
 862         struct rk_fb_par *fb_par = (struct rk_fb_par *)info->par;
 863         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
 864         struct rk_lcdc_win *win = NULL;
 865         int win_id = dev_drv->ops->fb_get_win_id(dev_drv, info->fix.id);
 866
 867         if (win_id >= 0) {
 868                 win = dev_drv->win[win_id];
 869                 fb_par->state--;
 870                 if (!fb_par->state) {
 871                         if (fb_par->fb_phy_base > 0)
 872                                 info->fix.smem_start = fb_par->fb_phy_base;
 873                         info->var.xres = dev_drv->screen0->mode.xres;
 874                         info->var.yres = dev_drv->screen0->mode.yres;
 875                         /*
 876                         info->var.grayscale |=
 877                             (info->var.xres << 8) + (info->var.yres << 20);
 878                         */
 879                         info->var.xres_virtual = info->var.xres;
 880                         info->var.yres_virtual = info->var.yres;
 881 #if defined(CONFIG_LOGO_LINUX_BMP)
 882                         info->var.bits_per_pixel = 32;
 883 #else
 884                         info->var.bits_per_pixel = 16;
 885 #endif
 886                         info->fix.line_length =
 887                             (info->var.xres_virtual) * (info->var.bits_per_pixel >> 3);
 888                         info->var.width = dev_drv->screen0->width;
 889                         info->var.height = dev_drv->screen0->height;
 890                         info->var.pixclock = dev_drv->pixclock;
 891                         info->var.left_margin = dev_drv->screen0->mode.left_margin;
 892                         info->var.right_margin = dev_drv->screen0->mode.right_margin;
 893                         info->var.upper_margin = dev_drv->screen0->mode.upper_margin;
 894                         info->var.lower_margin = dev_drv->screen0->mode.lower_margin;
 895                         info->var.vsync_len = dev_drv->screen0->mode.vsync_len;
 896                         info->var.hsync_len = dev_drv->screen0->mode.hsync_len;
 897                 }
 898         }
 899
 900         return 0;
 901 }
 902
 903 #if defined(FB_ROATE_BY_KERNEL)
 904
 905 #if defined(CONFIG_RK29_IPP)
 906 static int get_ipp_format(int fmt)
 907 {
 908         int ipp_fmt = IPP_XRGB_8888;
 909         switch (fmt) {
 910         case HAL_PIXEL_FORMAT_RGBX_8888:
 911         case HAL_PIXEL_FORMAT_RGBA_8888:
 912         case HAL_PIXEL_FORMAT_BGRA_8888:
 913         case HAL_PIXEL_FORMAT_RGB_888:
 914                 ipp_fmt = IPP_XRGB_8888;
 915                 break;
 916         case HAL_PIXEL_FORMAT_RGB_565:
 917                 ipp_fmt = IPP_RGB_565;
 918                 break;
 919         case HAL_PIXEL_FORMAT_YCbCr_422_SP:
 920                 ipp_fmt = IPP_Y_CBCR_H2V1;
 921                 break;
 922         case HAL_PIXEL_FORMAT_YCrCb_NV12:
 923                 ipp_fmt = IPP_Y_CBCR_H2V2;
 924                 break;
 925         case HAL_PIXEL_FORMAT_YCrCb_444:
 926                 ipp_fmt = IPP_Y_CBCR_H1V1;
 927                 break;
 928         default:
 929                 ipp_fmt = IPP_IMGTYPE_LIMIT;
 930                 break;
 931         }
 932
 933         return ipp_fmt;
 934 }
 935
 936 static void ipp_win_check(int *dst_w, int *dst_h, int *dst_vir_w,
 937                           int rotation, int fmt)
 938 {
 939         int align16 = 2;
 940         int align64 = 8;
 941
 942         if (fmt == IPP_XRGB_8888) {
 943                 align16 = 1;
 944                 align64 = 2;
 945         } else if (fmt == IPP_RGB_565) {
 946                 align16 = 1;
 947                 align64 = 4;
 948         } else {
 949                 align16 = 2;
 950                 align64 = 8;
 951         }
 952         align16 -= 1;           /*for YUV, 1 */
 953         align64 -= 1;           /*for YUV, 7 */
 954
 955         if (rotation == IPP_ROT_0) {
 956                 if (fmt > IPP_RGB_565) {
 957                         if ((*dst_w & 1) != 0)
 958                                 *dst_w = *dst_w + 1;
 959                         if ((*dst_h & 1) != 0)
 960                                 *dst_h = *dst_h + 1;
 961                         if (*dst_vir_w < *dst_w)
 962                                 *dst_vir_w = *dst_w;
 963                 }
 964         } else {
 965                 if ((*dst_w & align64) != 0)
 966                         *dst_w = (*dst_w + align64) & (~align64);
 967                 if ((fmt > IPP_RGB_565) && ((*dst_h & 1) == 1))
 968                         *dst_h = *dst_h + 1;
 969                 if (*dst_vir_w < *dst_w)
 970                         *dst_vir_w = *dst_w;
 971         }
 972 }
 973
 974 static void fb_copy_by_ipp(struct fb_info *dst_info,
 975                                 struct fb_info *src_info)
 976 {
 977         struct rk29_ipp_req ipp_req;
 978         uint32_t rotation = 0;
 979         int dst_w, dst_h, dst_vir_w;
 980         int ipp_fmt;
 981         u8 data_format = (dst_info->var.nonstd) & 0xff;
 982         struct rk_fb_par *fb_par = (struct rk_fb_par *)dst_info->par;
 983         struct rk_lcdc_driver *ext_dev_drv = fb_par->lcdc_drv;
 984         u16 orientation = ext_dev_drv->rotate_mode;
 985
 986         memset(&ipp_req, 0, sizeof(struct rk29_ipp_req));
 987
 988         switch (orientation) {
 989         case 0:
 990                 rotation = IPP_ROT_0;
 991                 break;
 992         case ROTATE_90:
 993                 rotation = IPP_ROT_90;
 994                 break;
 995         case ROTATE_180:
 996                 rotation = IPP_ROT_180;
 997                 break;
 998         case ROTATE_270:
 999                 rotation = IPP_ROT_270;
1000                 break;
1001         default:
1002                 rotation = IPP_ROT_270;
1003                 break;
1004         }
1005
1006         dst_w = dst_info->var.xres;
1007         dst_h = dst_info->var.yres;
1008         dst_vir_w = dst_info->var.xres_virtual;
1009         ipp_fmt = get_ipp_format(data_format);
1010         ipp_win_check(&dst_w, &dst_h, &dst_vir_w, rotation, ipp_fmt);
1011         ipp_req.src0.YrgbMst = src_info->fix.smem_start + offset;
1012         ipp_req.src0.w = src_info->var.xres;
1013         ipp_req.src0.h = src_info->var.yres;
1014         ipp_req.src_vir_w = src_info->var.xres_virtual;
1015         ipp_req.src0.fmt = ipp_fmt;
1016
1017         ipp_req.dst0.YrgbMst = dst_info->fix.smem_start + offset;
1018         ipp_req.dst0.w = dst_w;
1019         ipp_req.dst0.h = dst_h;
1020         ipp_req.dst_vir_w = dst_vir_w;
1021         ipp_req.dst0.fmt = ipp_fmt;
1022
1023         ipp_req.timeout = 100;
1024         ipp_req.flag = rotation;
1025         ipp_blit_sync(&ipp_req);
1026 }
1027
1028 #endif
1029
1030 #if defined(CONFIG_ROCKCHIP_RGA) || defined(CONFIG_ROCKCHIP_RGA2)
1031 static int get_rga_format(int fmt)
1032 {
1033         int rga_fmt = 0;
1034
1035         switch (fmt) {
1036         case XBGR888:
1037                 rga_fmt = RK_FORMAT_RGBX_8888;
1038                 break;
1039         case ABGR888:
1040                 rga_fmt = RK_FORMAT_RGBA_8888;
1041                 break;
1042         case ARGB888:
1043                 rga_fmt = RK_FORMAT_BGRA_8888;
1044                 break;
1045         case RGB888:
1046                 rga_fmt = RK_FORMAT_RGB_888;
1047                 break;
1048         case RGB565:
1049                 rga_fmt = RK_FORMAT_RGB_565;
1050                 break;
1051         case YUV422:
1052                 rga_fmt = RK_FORMAT_YCbCr_422_SP;
1053                 break;
1054         case YUV420:
1055                 rga_fmt = RK_FORMAT_YCbCr_420_SP;
1056                 break;
1057         default:
1058                 rga_fmt = RK_FORMAT_RGBA_8888;
1059                 break;
1060         }
1061
1062         return rga_fmt;
1063 }
1064
1065 static void rga_win_check(struct rk_lcdc_win *dst_win,
1066                           struct rk_lcdc_win *src_win)
1067 {
1068         int format = 0;
1069
1070         format = get_rga_format(src_win->area[0].format);
1071         /* width and height must be even number */
1072         if (format >= RK_FORMAT_YCbCr_422_SP &&
1073             format <= RK_FORMAT_YCrCb_420_P) {
1074                 if ((src_win->area[0].xact % 2) != 0)
1075                         src_win->area[0].xact += 1;
1076                 if ((src_win->area[0].yact % 2) != 0)
1077                         src_win->area[0].yact += 1;
1078         }
1079         if (src_win->area[0].xvir < src_win->area[0].xact)
1080                 src_win->area[0].xvir = src_win->area[0].xact;
1081         if (src_win->area[0].yvir < src_win->area[0].yact)
1082                 src_win->area[0].yvir = src_win->area[0].yact;
1083
1084         format = get_rga_format(dst_win->area[0].format);
1085         if (format >= RK_FORMAT_YCbCr_422_SP &&
1086             format <= RK_FORMAT_YCrCb_420_P) {
1087                 if ((dst_win->area[0].xact % 2) != 0)
1088                         dst_win->area[0].xact += 1;
1089                 if ((dst_win->area[0].yact % 2) != 0)
1090                         dst_win->area[0].yact += 1;
1091         }
1092         if (dst_win->area[0].xvir < dst_win->area[0].xact)
1093                 dst_win->area[0].xvir = dst_win->area[0].xact;
1094         if (dst_win->area[0].yvir < dst_win->area[0].yact)
1095                 dst_win->area[0].yvir = dst_win->area[0].yact;
1096 }
1097
1098 static void win_copy_by_rga(struct rk_lcdc_win *dst_win,
1099                             struct rk_lcdc_win *src_win,
1100                             u16 orientation, int iommu_en)
1101 {
1102         struct rga_req Rga_Request;
1103         long ret = 0;
1104         /* int fd = 0; */
1105
1106         memset(&Rga_Request, 0, sizeof(Rga_Request));
1107         rga_win_check(dst_win, src_win);
1108
1109         switch (orientation) {
1110         case ROTATE_90:
1111                 Rga_Request.rotate_mode = 1;
1112                 Rga_Request.sina = 65536;
1113                 Rga_Request.cosa = 0;
1114                 Rga_Request.dst.act_w = dst_win->area[0].yact;
1115                 Rga_Request.dst.act_h = dst_win->area[0].xact;
1116                 Rga_Request.dst.x_offset = dst_win->area[0].xact - 1;
1117                 Rga_Request.dst.y_offset = 0;
1118                 break;
1119         case ROTATE_180:
1120                 Rga_Request.rotate_mode = 1;
1121                 Rga_Request.sina = 0;
1122                 Rga_Request.cosa = -65536;
1123                 Rga_Request.dst.act_w = dst_win->area[0].xact;
1124                 Rga_Request.dst.act_h = dst_win->area[0].yact;
1125                 Rga_Request.dst.x_offset = dst_win->area[0].xact - 1;
1126                 Rga_Request.dst.y_offset = dst_win->area[0].yact - 1;
1127                 break;
1128         case ROTATE_270:
1129                 Rga_Request.rotate_mode = 1;
1130                 Rga_Request.sina = -65536;
1131                 Rga_Request.cosa = 0;
1132                 Rga_Request.dst.act_w = dst_win->area[0].yact;
1133                 Rga_Request.dst.act_h = dst_win->area[0].xact;
1134                 Rga_Request.dst.x_offset = 0;
1135                 Rga_Request.dst.y_offset = dst_win->area[0].yact - 1;
1136                 break;
1137         default:
1138                 Rga_Request.rotate_mode = 0;
1139                 Rga_Request.dst.act_w = dst_win->area[0].xact;
1140                 Rga_Request.dst.act_h = dst_win->area[0].yact;
1141                 Rga_Request.dst.x_offset = dst_win->area[0].xact - 1;
1142                 Rga_Request.dst.y_offset = dst_win->area[0].yact - 1;
1143                 break;
1144         }
1145
1146 /*
1147         fd = ion_share_dma_buf_fd(rk_fb->ion_client, src_win->area[0].ion_hdl);
1148         Rga_Request.src.yrgb_addr = fd;
1149         fd = ion_share_dma_buf_fd(rk_fb->ion_client, dst_win->area[0].ion_hdl);
1150         Rga_Request.dst.yrgb_addr = fd;
1151 */
1152         Rga_Request.src.yrgb_addr = 0;
1153         Rga_Request.src.uv_addr =
1154             src_win->area[0].smem_start + src_win->area[0].y_offset;
1155         Rga_Request.src.v_addr = 0;
1156
1157         Rga_Request.dst.yrgb_addr = 0;
1158         Rga_Request.dst.uv_addr =
1159             dst_win->area[0].smem_start + dst_win->area[0].y_offset;
1160         Rga_Request.dst.v_addr = 0;
1161
1162         Rga_Request.src.vir_w = src_win->area[0].xvir;
1163         Rga_Request.src.vir_h = src_win->area[0].yvir;
1164         Rga_Request.src.format = get_rga_format(src_win->area[0].format);
1165         Rga_Request.src.act_w = src_win->area[0].xact;
1166         Rga_Request.src.act_h = src_win->area[0].yact;
1167         Rga_Request.src.x_offset = 0;
1168         Rga_Request.src.y_offset = 0;
1169
1170         Rga_Request.dst.vir_w = dst_win->area[0].xvir;
1171         Rga_Request.dst.vir_h = dst_win->area[0].yvir;
1172         Rga_Request.dst.format = get_rga_format(dst_win->area[0].format);
1173
1174         Rga_Request.clip.xmin = 0;
1175         Rga_Request.clip.xmax = dst_win->area[0].xact - 1;
1176         Rga_Request.clip.ymin = 0;
1177         Rga_Request.clip.ymax = dst_win->area[0].yact - 1;
1178         Rga_Request.scale_mode = 0;
1179 #if defined(CONFIG_ROCKCHIP_IOMMU)
1180         if (iommu_en) {
1181                 Rga_Request.mmu_info.mmu_en = 1;
1182                 Rga_Request.mmu_info.mmu_flag = 1;
1183         } else {
1184                 Rga_Request.mmu_info.mmu_en = 0;
1185                 Rga_Request.mmu_info.mmu_flag = 0;
1186         }
1187 #else
1188         Rga_Request.mmu_info.mmu_en = 0;
1189         Rga_Request.mmu_info.mmu_flag = 0;
1190 #endif
1191
1192         ret = rga_ioctl_kernel(&Rga_Request);
1193 }
1194
1195 /*
1196  * This function is used for copying fb by RGA Module
1197  * RGA only support copy RGB to RGB
1198  * RGA2 support copy RGB to RGB and YUV to YUV
1199  */
1200 static void fb_copy_by_rga(struct fb_info *dst_info,
1201                                 struct fb_info *src_info)
1202 {
1203         struct rk_fb_par *src_fb_par = (struct rk_fb_par *)src_info->par;
1204         struct rk_fb_par *dst_fb_par = (struct rk_fb_par *)dst_info->par;
1205         struct rk_lcdc_driver *dev_drv = src_fb_par->lcdc_drv;
1206         struct rk_lcdc_driver *ext_dev_drv = dst_fb_par->lcdc_drv;
1207         int win_id = 0, ext_win_id;
1208         struct rk_lcdc_win *src_win, *dst_win;
1209
1210         win_id = dev_drv->ops->fb_get_win_id(dev_drv, src_info->fix.id);
1211         src_win = dev_drv->win[win_id];
1212
1213         ext_win_id =
1214             ext_dev_drv->ops->fb_get_win_id(ext_dev_drv, dst_info->fix.id);
1215         dst_win = ext_dev_drv->win[ext_win_id];
1216
1217         win_copy_by_rga(dst_win, src_win, ext_dev_drv->rotate_mode,
1218                         ext_dev_drv->iommu_enabled);
1219 }
1220 #endif
1221
1222 static int rk_fb_rotate(struct fb_info *dst_info,
1223                           struct fb_info *src_info)
1224 {
1225
1226 #if defined(CONFIG_RK29_IPP)
1227         fb_copy_by_ipp(dst_info, src_info);
1228 #elif defined(CONFIG_ROCKCHIP_RGA) || defined(CONFIG_ROCKCHIP_RGA2)
1229         fb_copy_by_rga(dst_info, src_info);
1230 #else
1231         return -1;
1232 #endif
1233         return 0;
1234 }
1235
1236 static int __maybe_unused rk_fb_win_rotate(struct rk_lcdc_win *dst_win,
1237                                             struct rk_lcdc_win *src_win,
1238                                             u16 rotate, int iommu_en)
1239 {
1240 #if defined(CONFIG_ROCKCHIP_RGA) || defined(CONFIG_ROCKCHIP_RGA2)
1241         win_copy_by_rga(dst_win, src_win, rotate, iommu_en);
1242 #else
1243         return -1;
1244 #endif
1245         return 0;
1246 }
1247
1248 #endif
1249
1250 static int rk_fb_pan_display(struct fb_var_screeninfo *var,
1251                              struct fb_info *info)
1252 {
1253         struct rk_fb_par *fb_par = (struct rk_fb_par *)info->par;
1254         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
1255         struct fb_fix_screeninfo *fix = &info->fix;
1256         int win_id = 0;
1257         struct rk_lcdc_win *win = NULL;
1258         struct rk_screen *screen = dev_drv->cur_screen;
1259         u32 xoffset = var->xoffset;
1260         u32 yoffset = var->yoffset;
1261         u32 xvir = var->xres_virtual;
1262         u8 pixel_width;
1263         u32 vir_width_bit;
1264         u32 stride, uv_stride;
1265         u32 stride_32bit_1;
1266         u32 stride_32bit_2;
1267         u16 uv_x_off, uv_y_off, uv_y_act;
1268         u8 is_pic_yuv = 0;
1269
1270         win_id = dev_drv->ops->fb_get_win_id(dev_drv, info->fix.id);
1271         if (win_id < 0)
1272                 return -ENODEV;
1273         else
1274                 win = dev_drv->win[win_id];
1275
1276         pixel_width = rk_fb_pixel_width(win->area[0].format);
1277         vir_width_bit = pixel_width * xvir;
1278         stride_32bit_1 = ALIGN_N_TIMES(vir_width_bit, 32) / 8;
1279         stride_32bit_2 = ALIGN_N_TIMES(vir_width_bit * 2, 32) / 8;
1280
1281         switch (win->area[0].format) {
1282         case YUV422:
1283         case YUV422_A:
1284                 is_pic_yuv = 1;
1285                 stride = stride_32bit_1;
1286                 uv_stride = stride_32bit_1 >> 1;
1287                 uv_x_off = xoffset >> 1;
1288                 uv_y_off = yoffset;
1289                 fix->line_length = stride;
1290                 uv_y_act = win->area[0].yact >> 1;
1291                 break;
1292         case YUV420:            /* nv12 */
1293         case YUV420_NV21:       /* nv21 */
1294         case YUV420_A:
1295                 is_pic_yuv = 1;
1296                 stride = stride_32bit_1;
1297                 uv_stride = stride_32bit_1;
1298                 uv_x_off = xoffset;
1299                 uv_y_off = yoffset >> 1;
1300                 fix->line_length = stride;
1301                 uv_y_act = win->area[0].yact >> 1;
1302                 break;
1303         case YUV444:
1304         case YUV444_A:
1305                 is_pic_yuv = 1;
1306                 stride = stride_32bit_1;
1307                 uv_stride = stride_32bit_2;
1308                 uv_x_off = xoffset * 2;
1309                 uv_y_off = yoffset;
1310                 fix->line_length = stride << 2;
1311                 uv_y_act = win->area[0].yact;
1312                 break;
1313         default:
1314                 stride = stride_32bit_1;        /* default rgb */
1315                 fix->line_length = stride;
1316                 break;
1317         }
1318
1319         /* x y mirror ,jump line */
1320         if ((screen->y_mirror == 1) ||
1321             (win->mirror_en == 1)) {
1322                 if (screen->interlace == 1) {
1323                         win->area[0].y_offset = yoffset * stride * 2 +
1324                             ((win->area[0].yact - 1) * 2 + 1) * stride +
1325                             xoffset * pixel_width / 8;
1326                 } else {
1327                         win->area[0].y_offset = yoffset * stride +
1328                             (win->area[0].yact - 1) * stride +
1329                             xoffset * pixel_width / 8;
1330                 }
1331         } else {
1332                 if (screen->interlace == 1) {
1333                         win->area[0].y_offset =
1334                             yoffset * stride * 2 + xoffset * pixel_width / 8;
1335                 } else {
1336                         win->area[0].y_offset =
1337                             yoffset * stride + xoffset * pixel_width / 8;
1338                 }
1339         }
1340         if (is_pic_yuv == 1) {
1341                 if ((screen->y_mirror == 1) ||
1342                     (win->mirror_en == 1)) {
1343                         if (screen->interlace == 1) {
1344                                 win->area[0].c_offset =
1345                                     uv_y_off * uv_stride * 2 +
1346                                     ((uv_y_act - 1) * 2 + 1) * uv_stride +
1347                                     uv_x_off * pixel_width / 8;
1348                         } else {
1349                                 win->area[0].c_offset = uv_y_off * uv_stride +
1350                                     (uv_y_act - 1) * uv_stride +
1351                                     uv_x_off * pixel_width / 8;
1352                         }
1353                 } else {
1354                         if (screen->interlace == 1) {
1355                                 win->area[0].c_offset =
1356                                     uv_y_off * uv_stride * 2 +
1357                                     uv_x_off * pixel_width / 8;
1358                         } else {
1359                                 win->area[0].c_offset =
1360                                     uv_y_off * uv_stride +
1361                                     uv_x_off * pixel_width / 8;
1362                         }
1363                 }
1364         }
1365
1366         win->area[0].smem_start = fix->smem_start;
1367         win->area[0].cbr_start = fix->mmio_start;
1368         win->area[0].state = 1;
1369         win->area_num = 1;
1370
1371         dev_drv->ops->pan_display(dev_drv, win_id);
1372
1373 #ifdef  CONFIG_FB_MIRRORING
1374         if (video_data_to_mirroring)
1375                 video_data_to_mirroring(info, NULL);
1376 #endif
1377         /*if not want the config effect,set reserved[3] bit[0] 1*/
1378         if (likely((var->reserved[3] & 0x1) == 0))
1379                 dev_drv->ops->cfg_done(dev_drv);
1380
1381         return 0;
1382 }
1383
1384 static int rk_fb_get_list_stat(struct rk_lcdc_driver *dev_drv)
1385 {
1386         int i, j;
1387
1388         i = list_empty(&dev_drv->update_regs_list);
1389         j = list_empty(&dev_drv->saved_list);
1390         return i == j ? 0 : 1;
1391 }
1392
1393 void rk_fd_fence_wait(struct rk_lcdc_driver *dev_drv, struct sync_fence *fence)
1394 {
1395         int err = sync_fence_wait(fence, 1000);
1396
1397         if (err >= 0)
1398                 return;
1399
1400         if (err == -ETIME)
1401                 err = sync_fence_wait(fence, 10 * MSEC_PER_SEC);
1402
1403         if (err < 0)
1404                 printk("error waiting on fence\n");
1405 }
1406 #if 0
1407 static int rk_fb_copy_from_loader(struct fb_info *info)
1408 {
1409         struct rk_fb_par *fb_par = (struct rk_fb_par *)info->par;
1410         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
1411         void *dst = info->screen_base;
1412         u32 dsp_addr[4];
1413         u32 src;
1414         u32 i,size;
1415         int win_id;
1416         struct rk_lcdc_win *win;
1417
1418         win_id = dev_drv->ops->fb_get_win_id(dev_drv, info->fix.id);
1419         win = dev_drv->win[win_id];
1420         size = (win->area[0].xact) * (win->area[0].yact) << 2;
1421         dev_drv->ops->get_dsp_addr(dev_drv, dsp_addr);
1422         src = dsp_addr[win_id];
1423         dev_info(info->dev, "copy fb data %d x %d  from  dst_addr:%08x\n",
1424                  win->area[0].xact, win->area[0].yact, src);
1425         for (i = 0; i < size; i += PAGE_SIZE) {
1426                 void *page = phys_to_page(i + src);
1427                 void *from_virt = kmap(page);
1428                 void *to_virt = dst + i;
1429                 memcpy(to_virt, from_virt, PAGE_SIZE);
1430         }
1431         dev_drv->ops->direct_set_addr(dev_drv, win_id,
1432                                       info->fix.smem_start);
1433         return 0;
1434 }
1435 #endif
1436 #ifdef CONFIG_ROCKCHIP_IOMMU
1437 static int g_last_addr[4];
1438 int g_last_timeout;
1439 u32 freed_addr[10];
1440 u32 freed_index;
1441
1442 #define DUMP_CHUNK 256
1443 char buf[PAGE_SIZE];
1444
1445 int rk_fb_sysmmu_fault_handler(struct device *dev,
1446                                enum rk_iommu_inttype itype,
1447                                unsigned long pgtable_base,
1448                                unsigned long fault_addr, unsigned int status)
1449 {
1450         struct rk_lcdc_driver *dev_drv = rk_get_prmry_lcdc_drv();
1451         int i = 0;
1452         static int page_fault_cnt;
1453         if ((page_fault_cnt++) >= 10)
1454                 return 0;
1455         pr_err
1456             ("PAGE FAULT occurred at 0x%lx (Page table base: 0x%lx),status=%d\n",
1457              fault_addr, pgtable_base, status);
1458         printk("last config addr:\n" "win0:0x%08x\n" "win1:0x%08x\n"
1459                "win2:0x%08x\n" "win3:0x%08x\n", g_last_addr[0], g_last_addr[1],
1460                g_last_addr[2], g_last_addr[3]);
1461         printk("last freed buffer:\n");
1462         for (i = 0; (freed_addr[i] != 0xfefefefe) && freed_addr[i]; i++)
1463                 printk("%d:0x%08x\n", i, freed_addr[i]);
1464         printk("last timeout:%d\n", g_last_timeout);
1465         dev_drv->ops->get_disp_info(dev_drv, buf, 0);
1466         for (i = 0; i < PAGE_SIZE; i += DUMP_CHUNK) {
1467                 if ((PAGE_SIZE - i) > DUMP_CHUNK) {
1468                         char c = buf[i + DUMP_CHUNK];
1469                         buf[i + DUMP_CHUNK] = 0;
1470                         pr_cont("%s", buf + i);
1471                         buf[i + DUMP_CHUNK] = c;
1472                 } else {
1473                         buf[PAGE_SIZE - 1] = 0;
1474                         pr_cont("%s", buf + i);
1475                 }
1476         }
1477
1478         return 0;
1479 }
1480 #endif
1481
1482 void rk_fb_free_dma_buf(struct rk_lcdc_driver *dev_drv,
1483                         struct rk_fb_reg_win_data *reg_win_data)
1484 {
1485         int i, index_buf;
1486         struct rk_fb_reg_area_data *area_data;
1487         struct rk_fb *rk_fb = platform_get_drvdata(fb_pdev);
1488
1489         for (i = 0; i < reg_win_data->area_num; i++) {
1490                 area_data = &reg_win_data->reg_area_data[i];
1491                 index_buf = area_data->index_buf;
1492 #if defined(CONFIG_ROCKCHIP_IOMMU)
1493                 if (dev_drv->iommu_enabled) {
1494                         if (rk_fb->disp_policy != DISPLAY_POLICY_BOX)
1495                                 ion_unmap_iommu(dev_drv->dev, rk_fb->ion_client,
1496                                                 area_data->ion_handle);
1497                         freed_addr[freed_index++] = area_data->smem_start;
1498                 }
1499 #endif
1500                 if (area_data->ion_handle != NULL)
1501                         ion_free(rk_fb->ion_client, area_data->ion_handle);
1502
1503                 if (area_data->acq_fence)
1504                         sync_fence_put(area_data->acq_fence);
1505         }
1506         memset(reg_win_data, 0, sizeof(struct rk_fb_reg_win_data));
1507 }
1508
1509 static void rk_fb_update_win(struct rk_lcdc_driver *dev_drv,
1510                                 struct rk_lcdc_win *win,
1511                                 struct rk_fb_reg_win_data *reg_win_data)
1512 {
1513         int i = 0;
1514         struct rk_fb *inf = platform_get_drvdata(fb_pdev);
1515         struct rk_screen *cur_screen;
1516         struct rk_screen primary_screen;
1517
1518         if (unlikely(!inf) || unlikely(!dev_drv) ||
1519             unlikely(!win) || unlikely(!reg_win_data))
1520                 return;
1521
1522         cur_screen = dev_drv->cur_screen;
1523         rk_fb_get_prmry_screen(&primary_screen);
1524
1525         win->area_num = reg_win_data->area_num;
1526         win->id = reg_win_data->win_id;
1527         win->z_order = reg_win_data->z_order;
1528
1529         if (reg_win_data->reg_area_data[0].smem_start > 0) {
1530                 win->state = 1;
1531                 win->area_num = reg_win_data->area_num;
1532                 win->id = reg_win_data->win_id;
1533                 win->z_order = reg_win_data->z_order;
1534                 win->area[0].uv_vir_stride =
1535                     reg_win_data->reg_area_data[0].uv_vir_stride;
1536                 win->area[0].cbr_start =
1537                     reg_win_data->reg_area_data[0].cbr_start;
1538                 win->area[0].c_offset = reg_win_data->reg_area_data[0].c_offset;
1539                 win->alpha_en = reg_win_data->alpha_en;
1540                 win->alpha_mode = reg_win_data->alpha_mode;
1541                 win->g_alpha_val = reg_win_data->g_alpha_val;
1542                 win->mirror_en = reg_win_data->mirror_en;
1543                 win->area[0].fbdc_en =
1544                         reg_win_data->reg_area_data[0].fbdc_en;
1545                 win->area[0].fbdc_cor_en =
1546                         reg_win_data->reg_area_data[0].fbdc_cor_en;
1547                 win->area[0].fbdc_data_format =
1548                         reg_win_data->reg_area_data[0].fbdc_data_format;
1549                 for (i = 0; i < RK_WIN_MAX_AREA; i++) {
1550                         if (reg_win_data->reg_area_data[i].smem_start > 0) {
1551                                 win->area[i].format =
1552                                         reg_win_data->reg_area_data[i].data_format;
1553                                 if (inf->disp_policy != DISPLAY_POLICY_BOX)
1554                                         win->area[i].ion_hdl =
1555                                         reg_win_data->reg_area_data[i].ion_handle;
1556                                 win->area[i].smem_start =
1557                                         reg_win_data->reg_area_data[i].smem_start;
1558                                 if (inf->disp_mode == DUAL ||
1559                                     inf->disp_mode == NO_DUAL ||
1560                                     inf->disp_policy == DISPLAY_POLICY_BOX) {
1561                                         win->area[i].xpos =
1562                                                 reg_win_data->reg_area_data[i].xpos;
1563                                         win->area[i].ypos =
1564                                                 reg_win_data->reg_area_data[i].ypos;
1565                                         win->area[i].xsize =
1566                                                 reg_win_data->reg_area_data[i].xsize;
1567                                         win->area[i].ysize =
1568                                                 reg_win_data->reg_area_data[i].ysize;
1569                                 } else {
1570                                         win->area[i].xpos =
1571                                                 reg_win_data->reg_area_data[i].xpos *
1572                                                 cur_screen->mode.xres /
1573                                                 primary_screen.mode.xres;
1574                                         win->area[i].ypos =
1575                                                 reg_win_data->reg_area_data[i].ypos *
1576                                                 cur_screen->mode.yres /
1577                                                 primary_screen.mode.yres;
1578                                         win->area[i].xsize =
1579                                                 reg_win_data->reg_area_data[i].xsize *
1580                                                 cur_screen->mode.xres /
1581                                                 primary_screen.mode.xres;
1582                                         win->area[i].ysize =
1583                                                 reg_win_data->reg_area_data[i].ysize *
1584                                                 cur_screen->mode.yres /
1585                                                 primary_screen.mode.yres;
1586
1587                                         /* recalc display size if set hdmi scaler when at ONE_DUAL mode */
1588                                         if (inf->disp_mode == ONE_DUAL && hdmi_switch_complete) {
1589                                                 if (cur_screen->xsize > 0 &&
1590                                                     cur_screen->xsize <= cur_screen->mode.xres) {
1591                                                         win->area[i].xpos =
1592                                                                 ((cur_screen->mode.xres - cur_screen->xsize) >> 1) +
1593                                                                 cur_screen->xsize * win->area[i].xpos / cur_screen->mode.xres;
1594                                                         win->area[i].xsize =
1595                                                                 win->area[i].xsize * cur_screen->xsize / cur_screen->mode.xres;
1596                                                 }
1597                                                 if (cur_screen->ysize > 0 && cur_screen->ysize <= cur_screen->mode.yres) {
1598                                                         win->area[i].ypos =
1599                                                                 ((cur_screen->mode.yres - cur_screen->ysize) >> 1) +
1600                                                                 cur_screen->ysize * win->area[i].ypos / cur_screen->mode.yres;
1601                                                         win->area[i].ysize =
1602                                                                 win->area[i].ysize * cur_screen->ysize / cur_screen->mode.yres;
1603                                                 }
1604                                         }
1605                                 }
1606                                 win->area[i].xact =
1607                                     reg_win_data->reg_area_data[i].xact;
1608                                 win->area[i].yact =
1609                                     reg_win_data->reg_area_data[i].yact;
1610                                 win->area[i].xvir =
1611                                     reg_win_data->reg_area_data[i].xvir;
1612                                 win->area[i].yvir =
1613                                     reg_win_data->reg_area_data[i].yvir;
1614                                 win->area[i].xoff =
1615                                     reg_win_data->reg_area_data[i].xoff;
1616                                 win->area[i].yoff =
1617                                     reg_win_data->reg_area_data[i].yoff;
1618                                 win->area[i].y_offset =
1619                                     reg_win_data->reg_area_data[i].y_offset;
1620                                 win->area[i].y_vir_stride =
1621                                     reg_win_data->reg_area_data[i].y_vir_stride;
1622                                 win->area[i].state = 1;
1623                         } else {
1624                                 win->area[i].state = 0;
1625                         }
1626                 }
1627         } else {
1628         /*
1629                 win->state = 0;
1630                 win->z_order = -1;
1631         */
1632         }
1633 }
1634
1635 static struct rk_fb_reg_win_data *rk_fb_get_win_data(struct rk_fb_reg_data
1636                                                      *regs, int win_id)
1637 {
1638         int i;
1639         struct rk_fb_reg_win_data *win_data = NULL;
1640         for (i = 0; i < regs->win_num; i++) {
1641                 if (regs->reg_win_data[i].win_id == win_id) {
1642                         win_data = &(regs->reg_win_data[i]);
1643                         break;
1644                 }
1645         }
1646
1647         return win_data;
1648 }
1649
1650 static void rk_fb_update_reg(struct rk_lcdc_driver *dev_drv,
1651                              struct rk_fb_reg_data *regs)
1652 {
1653         int i, j;
1654         struct rk_lcdc_win *win;
1655         ktime_t timestamp = dev_drv->vsync_info.timestamp;
1656         struct rk_fb *rk_fb = platform_get_drvdata(fb_pdev);
1657         struct rk_fb_reg_win_data *win_data;
1658         bool wait_for_vsync;
1659         int count = 100;
1660         unsigned int dsp_addr[4];
1661         long timeout;
1662         int win_status = 0;
1663
1664         /* acq_fence wait */
1665         for (i = 0; i < regs->win_num; i++) {
1666                 win_data = &regs->reg_win_data[i];
1667                 for (j = 0; j < RK_WIN_MAX_AREA; j++) {
1668                         if (win_data->reg_area_data[j].acq_fence) {
1669                                 /* printk("acq_fence wait!!!!!\n"); */
1670                                 rk_fd_fence_wait(dev_drv, win_data->reg_area_data[j].acq_fence);
1671                         }
1672                 }
1673         }
1674
1675         for (i = 0; i < dev_drv->lcdc_win_num; i++) {
1676                 win = dev_drv->win[i];
1677                 win_data = rk_fb_get_win_data(regs, i);
1678                 if (win_data) {
1679                         if (rk_fb->disp_policy == DISPLAY_POLICY_BOX &&
1680                             (win_data->reg_area_data[0].data_format == YUV420 ||
1681                              win_data->reg_area_data[0].data_format == YUV420_NV21 ||
1682                              win_data->reg_area_data[0].data_format == YUV420_A))
1683                                 continue;
1684                         mutex_lock(&dev_drv->win_config);
1685                         rk_fb_update_win(dev_drv, win, win_data);
1686                         win->state = 1;
1687                         dev_drv->ops->set_par(dev_drv, i);
1688                         dev_drv->ops->pan_display(dev_drv, i);
1689                         mutex_unlock(&dev_drv->win_config);
1690 #if defined(CONFIG_ROCKCHIP_IOMMU)
1691                         if (dev_drv->iommu_enabled) {
1692                                 g_last_addr[i] = win_data->reg_area_data[0].smem_start +
1693                                         win_data->reg_area_data[0].y_offset;
1694                         }
1695 #endif
1696                 } else {
1697                         win->z_order = -1;
1698                         win->state = 0;
1699                 }
1700         }
1701         dev_drv->ops->ovl_mgr(dev_drv, 0, 1);
1702         dev_drv->ops->cfg_done(dev_drv);
1703
1704         do {
1705                 timestamp = dev_drv->vsync_info.timestamp;
1706                 timeout = wait_event_interruptible_timeout(dev_drv->vsync_info.wait,
1707                                 ktime_compare(dev_drv->vsync_info.timestamp, timestamp) > 0,
1708                                 msecs_to_jiffies(25));
1709
1710                 dev_drv->ops->get_dsp_addr(dev_drv, dsp_addr);
1711                 wait_for_vsync = false;
1712                 for (i = 0; i < dev_drv->lcdc_win_num; i++) {
1713                         if (rk_fb->disp_policy == DISPLAY_POLICY_BOX &&
1714                             (!strcmp(dev_drv->win[i]->name, "hwc")))
1715                                 continue;
1716                         if (dev_drv->win[i]->state == 1) {
1717                                 u32 new_start =
1718                                     dev_drv->win[i]->area[0].smem_start +
1719                                     dev_drv->win[i]->area[0].y_offset;
1720                                 u32 reg_start = dsp_addr[i];
1721
1722                                 if ((rk_fb->disp_policy ==
1723                                      DISPLAY_POLICY_BOX) &&
1724                                     (dev_drv->suspend_flag))
1725                                         continue;
1726                                 if (unlikely(new_start != reg_start)) {
1727                                         wait_for_vsync = true;
1728                                         dev_info(dev_drv->dev,
1729                                                "win%d:new_addr:0x%08x cur_addr:0x%08x--%d\n",
1730                                                i, new_start, reg_start, 101 - count);
1731                                         break;
1732                                 }
1733                         } else if (dev_drv->win[i]->state == 0) {
1734                                 if (dev_drv->ops->get_win_state) {
1735                                         win_status =
1736                                         dev_drv->ops->get_win_state(dev_drv, i);
1737                                         if (win_status)
1738                                                wait_for_vsync = true;
1739                                 }
1740                         } else {
1741                                 pr_err("!!!win[%d]state:%d,error!!!\n",
1742                                         i, dev_drv->win[i]->state);
1743                         }
1744                 }
1745         } while (wait_for_vsync && count--);
1746 #ifdef H_USE_FENCE
1747         sw_sync_timeline_inc(dev_drv->timeline, 1);
1748 #endif
1749         if (dev_drv->front_regs) {
1750 #if defined(CONFIG_ROCKCHIP_IOMMU)
1751                 if (dev_drv->iommu_enabled) {
1752                         if (dev_drv->ops->mmu_en)
1753                                 dev_drv->ops->mmu_en(dev_drv);
1754                         freed_index = 0;
1755                         g_last_timeout = timeout;
1756                 }
1757 #endif
1758
1759                 mutex_lock(&dev_drv->front_lock);
1760
1761                 for (i = 0; i < dev_drv->front_regs->win_num; i++) {
1762                         win_data = &dev_drv->front_regs->reg_win_data[i];
1763                         rk_fb_free_dma_buf(dev_drv, win_data);
1764                 }
1765                 kfree(dev_drv->front_regs);
1766
1767                 mutex_unlock(&dev_drv->front_lock);
1768
1769 #if defined(CONFIG_ROCKCHIP_IOMMU)
1770                 if (dev_drv->iommu_enabled)
1771                         freed_addr[freed_index] = 0xfefefefe;
1772 #endif
1773         }
1774
1775         mutex_lock(&dev_drv->front_lock);
1776
1777         dev_drv->front_regs = regs;
1778
1779         mutex_unlock(&dev_drv->front_lock);
1780 }
1781
1782 static void rk_fb_update_regs_handler(struct kthread_work *work)
1783 {
1784         struct rk_lcdc_driver *dev_drv =
1785             container_of(work, struct rk_lcdc_driver, update_regs_work);
1786         struct rk_fb_reg_data *data, *next;
1787
1788         mutex_lock(&dev_drv->update_regs_list_lock);
1789         dev_drv->saved_list = dev_drv->update_regs_list;
1790         list_replace_init(&dev_drv->update_regs_list, &dev_drv->saved_list);
1791         mutex_unlock(&dev_drv->update_regs_list_lock);
1792
1793         list_for_each_entry_safe(data, next, &dev_drv->saved_list, list) {
1794                 rk_fb_update_reg(dev_drv, data);
1795                 list_del(&data->list);
1796         }
1797
1798         if (dev_drv->wait_fs && list_empty(&dev_drv->update_regs_list))
1799                 wake_up(&dev_drv->update_regs_wait);
1800 }
1801
1802 static int rk_fb_check_config_var(struct rk_fb_area_par *area_par,
1803                                   struct rk_screen *screen)
1804 {
1805         if ((area_par->x_offset + area_par->xact > area_par->xvir) ||
1806             (area_par->xact <= 0) || (area_par->yact <= 0) ||
1807             (area_par->xvir <= 0) || (area_par->yvir <= 0)) {
1808                 pr_err("check config var fail 0:\n"
1809                        "x_offset=%d,xact=%d,xvir=%d\n",
1810                        area_par->x_offset, area_par->xact, area_par->xvir);
1811                 return -EINVAL;
1812         }
1813
1814         if ((area_par->xpos + area_par->xsize > screen->mode.xres) ||
1815             (area_par->ypos + area_par->ysize > screen->mode.yres) ||
1816             (area_par->xsize <= 0) || (area_par->ysize <= 0)) {
1817                 pr_warn("check config var fail 1:\n"
1818                        "xpos=%d,xsize=%d,xres=%d\n"
1819                        "ypos=%d,ysize=%d,yres=%d\n",
1820                        area_par->xpos, area_par->xsize, screen->mode.xres,
1821                        area_par->ypos, area_par->ysize, screen->mode.yres);
1822                 return -EINVAL;
1823         }
1824         return 0;
1825 }
1826
1827 static int rk_fb_set_win_buffer(struct fb_info *info,
1828                                 struct rk_fb_win_par *win_par,
1829                                 struct rk_fb_reg_win_data *reg_win_data)
1830 {
1831         struct rk_fb *rk_fb = dev_get_drvdata(info->device);
1832         struct fb_fix_screeninfo *fix = &info->fix;
1833         struct rk_fb_par *fb_par = (struct rk_fb_par *)info->par;
1834         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
1835         /*if hdmi size move to hwc,screen should point to cur_screen*/
1836         struct rk_screen *screen = dev_drv->screen0;/*cur_screen;*/
1837         struct fb_info *fbi;
1838         int i, ion_fd, acq_fence_fd;
1839         u32 xvir, yvir;
1840         u32 xoffset, yoffset;
1841
1842         struct ion_handle *hdl;
1843         size_t len;
1844         int index_buf;
1845         u8 fb_data_fmt;
1846         u8 pixel_width;
1847         u32 vir_width_bit;
1848         u32 stride, uv_stride;
1849         u32 stride_32bit_1;
1850         u32 stride_32bit_2;
1851         u16 uv_x_off, uv_y_off, uv_y_act;
1852         u8 is_pic_yuv = 0;
1853         u8 ppixel_a = 0, global_a = 0;
1854         ion_phys_addr_t phy_addr;
1855         int ret = 0;
1856         int buff_len;
1857
1858         reg_win_data->reg_area_data[0].smem_start = -1;
1859         reg_win_data->area_num = 0;
1860         fbi = rk_fb->fb[reg_win_data->win_id];
1861         if (win_par->area_par[0].phy_addr == 0) {
1862                 for (i = 0; i < RK_WIN_MAX_AREA; i++) {
1863                         ion_fd = win_par->area_par[i].ion_fd;
1864                         if (ion_fd > 0) {
1865                                 hdl =
1866                                     ion_import_dma_buf(rk_fb->ion_client,
1867                                                        ion_fd);
1868                                 if (IS_ERR(hdl)) {
1869                                         pr_info("%s: Could not import handle:"
1870                                                 " %ld\n", __func__, (long)hdl);
1871                                         /*return -EINVAL; */
1872                                         break;
1873                                 }
1874                                 reg_win_data->area_num++;
1875                                 reg_win_data->reg_area_data[i].ion_handle = hdl;
1876 #ifndef CONFIG_ROCKCHIP_IOMMU
1877                                 ret = ion_phys(rk_fb->ion_client, hdl, &phy_addr,
1878                                                 &len);
1879 #else
1880                                 if (dev_drv->iommu_enabled)
1881                                         ret = ion_map_iommu(dev_drv->dev,
1882                                                                 rk_fb->ion_client,
1883                                                                 hdl,
1884                                                                 (unsigned long *)&phy_addr,
1885                                                                 (unsigned long *)&len);
1886                                 else
1887                                         ret = ion_phys(rk_fb->ion_client, hdl,
1888                                                         &phy_addr, &len);
1889 #endif
1890                                 if (ret < 0) {
1891                                         dev_err(fbi->dev, "ion map to get phy addr failed\n");
1892                                         ion_free(rk_fb->ion_client, hdl);
1893                                         return -ENOMEM;
1894                                 }
1895                                 reg_win_data->reg_area_data[i].smem_start = phy_addr;
1896                                 reg_win_data->area_buf_num++;
1897                                 reg_win_data->reg_area_data[i].index_buf = 1;
1898                                 reg_win_data->reg_area_data[i].buff_len = len;
1899                         }
1900                 }
1901         } else {
1902                 reg_win_data->reg_area_data[0].smem_start =
1903                     win_par->area_par[0].phy_addr;
1904                 reg_win_data->area_num = 1;
1905                 fbi->screen_base = phys_to_virt(win_par->area_par[0].phy_addr);
1906         }
1907
1908         if (reg_win_data->area_num == 0)
1909                 return 0;
1910
1911         for (i = 0; i < reg_win_data->area_num; i++) {
1912                 acq_fence_fd = win_par->area_par[i].acq_fence_fd;
1913                 index_buf = reg_win_data->reg_area_data[i].index_buf;
1914                 if ((acq_fence_fd > 0) && (index_buf == 1)) {
1915                         reg_win_data->reg_area_data[i].acq_fence =
1916                             sync_fence_fdget(win_par->area_par[i].acq_fence_fd);
1917                 }
1918         }
1919         if (reg_win_data->reg_area_data[0].smem_start > 0) {
1920                 reg_win_data->z_order = win_par->z_order;
1921                 reg_win_data->win_id = win_par->win_id;
1922         } else {
1923                 reg_win_data->z_order = -1;
1924                 reg_win_data->win_id = -1;
1925         }
1926
1927         reg_win_data->mirror_en = win_par->mirror_en;
1928         for (i = 0; i < reg_win_data->area_num; i++) {
1929                 rk_fb_check_config_var(&win_par->area_par[i], screen);
1930
1931                 fb_data_fmt = rk_fb_data_fmt(win_par->area_par[i].data_format, 0);
1932                 reg_win_data->reg_area_data[i].data_format = fb_data_fmt;
1933                 if (fb_data_fmt >= FBDC_RGB_565) {
1934                         reg_win_data->reg_area_data[i].fbdc_en = 1;
1935                         reg_win_data->reg_area_data[i].fbdc_cor_en = 1;
1936                 } else {
1937                         reg_win_data->reg_area_data[i].fbdc_en = 0;
1938                         reg_win_data->reg_area_data[i].fbdc_cor_en = 0;
1939                 }
1940                 pixel_width = rk_fb_pixel_width(fb_data_fmt);
1941
1942                 ppixel_a |= ((fb_data_fmt == ARGB888) ||
1943                              (fb_data_fmt == FBDC_ARGB_888) ||
1944                              (fb_data_fmt == FBDC_ABGR_888) ||
1945                              (fb_data_fmt == ABGR888)) ? 1 : 0;
1946                 /* visiable pos in panel */
1947                 reg_win_data->reg_area_data[i].xpos = win_par->area_par[i].xpos;
1948                 reg_win_data->reg_area_data[i].ypos = win_par->area_par[i].ypos;
1949
1950                 /* realy size in panel */
1951                 reg_win_data->reg_area_data[i].xsize = win_par->area_par[i].xsize;
1952                 reg_win_data->reg_area_data[i].ysize = win_par->area_par[i].ysize;
1953
1954                 /* realy size in panel */
1955                 reg_win_data->reg_area_data[i].xact = win_par->area_par[i].xact;
1956                 reg_win_data->reg_area_data[i].yact = win_par->area_par[i].yact;
1957
1958                 xoffset = win_par->area_par[i].x_offset;        /* buf offset */
1959                 yoffset = win_par->area_par[i].y_offset;
1960                 reg_win_data->reg_area_data[i].xoff = xoffset;
1961                 reg_win_data->reg_area_data[i].yoff = yoffset;
1962
1963                 xvir = win_par->area_par[i].xvir;
1964                 reg_win_data->reg_area_data[i].xvir = xvir;
1965                 yvir = win_par->area_par[i].yvir;
1966                 reg_win_data->reg_area_data[i].yvir = yvir;
1967
1968                 vir_width_bit = pixel_width * xvir;
1969                 /* pixel_width = byte_num*8 */
1970                 stride_32bit_1 = ((vir_width_bit + 31) & (~31)) / 8;
1971                 stride_32bit_2 = ((vir_width_bit * 2 + 31) & (~31)) / 8;
1972
1973                 stride = stride_32bit_1;        /* default rgb */
1974                 fix->line_length = stride;
1975                 reg_win_data->reg_area_data[i].y_vir_stride = stride >> 2;
1976
1977                 /* x y mirror ,jump line
1978                  * reg_win_data->reg_area_data[i].y_offset =
1979                  *              yoffset*stride+xoffset*pixel_width/8;
1980                  */
1981                 if ((screen->y_mirror == 1) || (reg_win_data->mirror_en)) {
1982                         if (screen->interlace == 1) {
1983                                 reg_win_data->reg_area_data[i].y_offset =
1984                                     yoffset * stride * 2 +
1985                                     ((reg_win_data->reg_area_data[i].yact - 1) * 2 + 1) * stride +
1986                                     xoffset * pixel_width / 8;
1987                         } else {
1988                                 reg_win_data->reg_area_data[i].y_offset =
1989                                     yoffset * stride +
1990                                     (reg_win_data->reg_area_data[i].yact - 1) * stride +
1991                                     xoffset * pixel_width / 8;
1992                         }
1993                 } else {
1994                         if (screen->interlace == 1) {
1995                                 reg_win_data->reg_area_data[i].y_offset =
1996                                     yoffset * stride * 2 +
1997                                     xoffset * pixel_width / 8;
1998                         } else {
1999                                 reg_win_data->reg_area_data[i].y_offset =
2000                                     yoffset * stride +
2001                                     xoffset * pixel_width / 8;
2002                         }
2003                 }
2004                 if ((fb_data_fmt != YUV420) &&
2005                     (fb_data_fmt != YUV420_NV21) &&
2006                     (fb_data_fmt != YUV422) &&
2007                     (fb_data_fmt != YUV444)) {
2008                         buff_len = reg_win_data->reg_area_data[i].y_offset +
2009                                 reg_win_data->reg_area_data[i].xvir *
2010                                 reg_win_data->reg_area_data[i].yact *
2011                                 pixel_width / 8 -
2012                                 reg_win_data->reg_area_data[i].xoff*
2013                                 pixel_width / 8;
2014                         if (buff_len > reg_win_data->reg_area_data[i].buff_len)
2015                                 pr_err("\n!!!!!!error: fmt=%d,xvir[%d]*"
2016                                        "yact[%d]*bpp[%d]"
2017                                        "=buff_len[0x%x]>>mmu len=0x%x\n",
2018                                        fb_data_fmt,
2019                                        reg_win_data->reg_area_data[i].xvir,
2020                                        reg_win_data->reg_area_data[i].yact,
2021                                        pixel_width, buff_len,
2022                                        reg_win_data->reg_area_data[i].buff_len);
2023                 }
2024         }
2025
2026         global_a = (win_par->g_alpha_val == 0) ? 0 : 1;
2027         reg_win_data->alpha_en = ppixel_a | global_a;
2028         reg_win_data->g_alpha_val = win_par->g_alpha_val;
2029         reg_win_data->alpha_mode = win_par->alpha_mode;
2030
2031         switch (fb_data_fmt) {
2032         case YUV422:
2033         case YUV422_A:
2034                 is_pic_yuv = 1;
2035                 stride = stride_32bit_1;
2036                 uv_stride = stride_32bit_1 >> 1;
2037                 uv_x_off = xoffset >> 1;
2038                 uv_y_off = yoffset;
2039                 fix->line_length = stride;
2040                 uv_y_act = win_par->area_par[0].yact >> 1;
2041                 break;
2042         case YUV420:            /* nv12 */
2043         case YUV420_NV21:       /* nv21 */
2044         case YUV420_A:
2045                 is_pic_yuv = 1;
2046                 stride = stride_32bit_1;
2047                 uv_stride = stride_32bit_1;
2048                 uv_x_off = xoffset;
2049                 uv_y_off = yoffset >> 1;
2050                 fix->line_length = stride;
2051                 uv_y_act = win_par->area_par[0].yact >> 1;
2052                 break;
2053         case YUV444:
2054         case YUV444_A:
2055                 is_pic_yuv = 1;
2056                 stride = stride_32bit_1;
2057                 uv_stride = stride_32bit_2;
2058                 uv_x_off = xoffset * 2;
2059                 uv_y_off = yoffset;
2060                 fix->line_length = stride << 2;
2061                 uv_y_act = win_par->area_par[0].yact;
2062                 break;
2063         default:
2064                 break;
2065         }
2066         if (is_pic_yuv == 1) {
2067                 reg_win_data->reg_area_data[0].cbr_start =
2068                     reg_win_data->reg_area_data[0].smem_start + xvir * yvir;
2069                 reg_win_data->reg_area_data[0].uv_vir_stride = uv_stride >> 2;
2070                 if ((screen->y_mirror == 1) || (reg_win_data->mirror_en)) {
2071                         if (screen->interlace == 1) {
2072                                 reg_win_data->reg_area_data[0].c_offset =
2073                                     uv_y_off * uv_stride * 2 +
2074                                     ((uv_y_act - 1) * 2 + 1) * uv_stride +
2075                                     uv_x_off * pixel_width / 8;
2076                         } else {
2077                                 reg_win_data->reg_area_data[0].c_offset =
2078                                     uv_y_off * uv_stride +
2079                                     (uv_y_act - 1) * uv_stride +
2080                                     uv_x_off * pixel_width / 8;
2081                         }
2082                 } else {
2083                         if (screen->interlace == 1) {
2084                                 reg_win_data->reg_area_data[0].c_offset =
2085                                     uv_y_off * uv_stride * 2 +
2086                                     uv_x_off * pixel_width / 8;
2087                         } else {
2088                                 reg_win_data->reg_area_data[0].c_offset =
2089                                     uv_y_off * uv_stride +
2090                                     uv_x_off * pixel_width / 8;
2091                         }
2092                 }
2093                 buff_len = reg_win_data->reg_area_data[0].cbr_start +
2094                         reg_win_data->reg_area_data[0].c_offset +
2095                         reg_win_data->reg_area_data[0].xvir *
2096                         reg_win_data->reg_area_data[0].yact *
2097                         pixel_width / 16 -
2098                         reg_win_data->reg_area_data[0].smem_start -
2099                         reg_win_data->reg_area_data[0].xoff*
2100                         pixel_width / 16 ;
2101                 if (buff_len > reg_win_data->reg_area_data[0].buff_len)
2102                         pr_err("\n!!!!!!error: fmt=%d,xvir[%d]*"
2103                                "yact[%d]*bpp[%d]"
2104                                "=buff_len[0x%x]>>mmu len=0x%x\n",
2105                                fb_data_fmt,
2106                                reg_win_data->reg_area_data[0].xvir,
2107                                reg_win_data->reg_area_data[0].yact,
2108                                pixel_width, buff_len,
2109                                reg_win_data->reg_area_data[0].buff_len);
2110         }
2111
2112         /* record buffer information for rk_fb_disp_scale to prevent fence timeout
2113          * because rk_fb_disp_scale will call function info->fbops->fb_set_par(info);
2114          */
2115         info->var.yoffset = yoffset;
2116         info->var.xoffset = xoffset;
2117         return 0;
2118 }
2119
2120 static int rk_fb_set_win_config(struct fb_info *info,
2121                                 struct rk_fb_win_cfg_data *win_data)
2122 {
2123         struct rk_fb_par *fb_par = (struct rk_fb_par *)info->par;
2124         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
2125         struct rk_fb_reg_data *regs;
2126 #ifdef H_USE_FENCE
2127         struct sync_fence *release_fence[RK_MAX_BUF_NUM];
2128         struct sync_fence *retire_fence;
2129         struct sync_pt *release_sync_pt[RK_MAX_BUF_NUM];
2130         struct sync_pt *retire_sync_pt;
2131         char fence_name[20];
2132 #endif
2133         int ret = 0, i, j = 0;
2134         int list_is_empty = 0;
2135
2136         if (dev_drv->suspend_flag) {
2137                 dev_drv->timeline_max++;
2138                 sw_sync_timeline_inc(dev_drv->timeline, 1);
2139                 return 0;
2140         }
2141
2142         regs = kzalloc(sizeof(struct rk_fb_reg_data), GFP_KERNEL);
2143         if (!regs) {
2144                 printk(KERN_INFO "could not allocate rk_fb_reg_data\n");
2145                 ret = -ENOMEM;
2146                 return ret;
2147         }
2148
2149 /*
2150         regs->post_cfg.xpos = win_data->post_cfg.xpos;
2151         regs->post_cfg.ypos = win_data->post_cfg.ypos;
2152         regs->post_cfg.xsize = win_data->post_cfg.xsize;
2153         regs->post_cfg.ysize = win_data->post_cfg.xsize;
2154 */
2155
2156         for (i = 0; i < dev_drv->lcdc_win_num; i++) {
2157                 if (win_data->win_par[i].win_id < dev_drv->lcdc_win_num) {
2158                         if (rk_fb_set_win_buffer(info, &win_data->win_par[i],
2159                                                         &regs->reg_win_data[j]))
2160                                 return -ENOMEM;
2161                         if (regs->reg_win_data[j].area_num > 0) {
2162                                 regs->win_num++;
2163                                 regs->buf_num +=
2164                                     regs->reg_win_data[j].area_buf_num;
2165                         }
2166                         j++;
2167                 } else {
2168                         printk(KERN_INFO "error:win_id bigger than lcdc_win_num\n");
2169                         printk(KERN_INFO "i=%d,win_id=%d\n", i,
2170                                win_data->win_par[i].win_id);
2171                 }
2172         }
2173
2174         mutex_lock(&dev_drv->output_lock);
2175
2176         dev_drv->timeline_max++;
2177 #ifdef H_USE_FENCE
2178         for (i = 0; i < RK_MAX_BUF_NUM; i++) {
2179                 if (i < regs->buf_num) {
2180                         sprintf(fence_name, "fence%d", i);
2181                         win_data->rel_fence_fd[i] = get_unused_fd();
2182                         if (win_data->rel_fence_fd[i] < 0) {
2183                                 printk(KERN_INFO "rel_fence_fd=%d\n",
2184                                        win_data->rel_fence_fd[i]);
2185                                 ret = -EFAULT;
2186                                 goto err;
2187                         }
2188                         release_sync_pt[i] =
2189                             sw_sync_pt_create(dev_drv->timeline,
2190                                               dev_drv->timeline_max);
2191                         release_fence[i] =
2192                             sync_fence_create(fence_name, release_sync_pt[i]);
2193                         sync_fence_install(release_fence[i],
2194                                            win_data->rel_fence_fd[i]);
2195                 } else {
2196                         win_data->rel_fence_fd[i] = -1;
2197                 }
2198         }
2199
2200         win_data->ret_fence_fd = get_unused_fd();
2201         if (win_data->ret_fence_fd < 0) {
2202                 printk("ret_fence_fd=%d\n", win_data->ret_fence_fd);
2203                 win_data->ret_fence_fd = -1;
2204                 ret = -EFAULT;
2205                 goto err;
2206         }
2207         retire_sync_pt =
2208             sw_sync_pt_create(dev_drv->timeline, dev_drv->timeline_max);
2209         retire_fence = sync_fence_create("ret_fence", retire_sync_pt);
2210         sync_fence_install(retire_fence, win_data->ret_fence_fd);
2211 #else
2212         for (i = 0; i < RK_MAX_BUF_NUM; i++)
2213                 win_data->rel_fence_fd[i] = -1;
2214
2215         win_data->ret_fence_fd = -1;
2216 #endif
2217         if (dev_drv->wait_fs == 0) {
2218                 mutex_lock(&dev_drv->update_regs_list_lock);
2219                 list_add_tail(&regs->list, &dev_drv->update_regs_list);
2220                 mutex_unlock(&dev_drv->update_regs_list_lock);
2221                 queue_kthread_work(&dev_drv->update_regs_worker,
2222                                    &dev_drv->update_regs_work);
2223         } else {
2224                 mutex_lock(&dev_drv->update_regs_list_lock);
2225                 list_is_empty = list_empty(&dev_drv->update_regs_list) &&
2226                                         list_empty(&dev_drv->saved_list);
2227                 mutex_unlock(&dev_drv->update_regs_list_lock);
2228                 if (!list_is_empty) {
2229                         ret = wait_event_timeout(dev_drv->update_regs_wait,
2230                                 list_empty(&dev_drv->update_regs_list) && list_empty(&dev_drv->saved_list),
2231                                 msecs_to_jiffies(60));
2232                         if (ret > 0)
2233                                 rk_fb_update_reg(dev_drv, regs);
2234                         else
2235                                 printk("%s: wait update_regs_wait timeout\n", __func__);
2236                 } else if (ret == 0) {
2237                         rk_fb_update_reg(dev_drv, regs);
2238                 }
2239         }
2240
2241 err:
2242         mutex_unlock(&dev_drv->output_lock);
2243         return ret;
2244 }
2245
2246 #if 1
2247 static int cfgdone_distlist[10] = { 0 };
2248
2249 static int cfgdone_index;
2250 static int cfgdone_lasttime;
2251
2252 int rk_get_real_fps(int before)
2253 {
2254         struct timespec now;
2255         int dist_curr;
2256         int dist_total = 0;
2257         int dist_count = 0;
2258         int dist_first = 0;
2259
2260         int index = cfgdone_index;
2261         int i = 0, fps = 0;
2262         int total;
2263
2264         if (before > 100)
2265                 before = 100;
2266         if (before < 0)
2267                 before = 0;
2268
2269         getnstimeofday(&now);
2270         dist_curr = (now.tv_sec * 1000000 + now.tv_nsec / 1000) -
2271                         cfgdone_lasttime;
2272         total = dist_curr;
2273         /*
2274            printk("fps: ");
2275          */
2276         for (i = 0; i < 10; i++) {
2277                 if (--index < 0)
2278                         index = 9;
2279                 total += cfgdone_distlist[index];
2280                 if (i == 0)
2281                         dist_first = cfgdone_distlist[index];
2282                 if (total < (before * 1000)) {
2283                         /*
2284                            printk("[%d:%d] ", dist_count, cfgdone_distlist[index]);
2285                          */
2286                         dist_total += cfgdone_distlist[index];
2287                         dist_count++;
2288                 } else {
2289                         break;
2290                 }
2291         }
2292
2293         /*
2294            printk("total %d, count %d, curr %d, ", dist_total, dist_count, dist_curr);
2295          */
2296         dist_curr = (dist_curr > dist_first) ? dist_curr : dist_first;
2297         dist_total += dist_curr;
2298         dist_count++;
2299
2300         if (dist_total > 0)
2301                 fps = (1000000 * dist_count) / dist_total;
2302         else
2303                 fps = 60;
2304
2305         /*
2306            printk("curr2 %d, fps=%d\n", dist_curr, fps);
2307          */
2308         return fps;
2309 }
2310 EXPORT_SYMBOL(rk_get_real_fps);
2311
2312 #endif
2313 #ifdef CONFIG_ROCKCHIP_IOMMU
2314 #define ION_MAX 10
2315 static struct ion_handle *ion_hanle[ION_MAX];
2316 static struct ion_handle *ion_hwc[1];
2317 #endif
2318 static int rk_fb_ioctl(struct fb_info *info, unsigned int cmd,
2319                        unsigned long arg)
2320 {
2321         struct rk_fb *rk_fb = dev_get_drvdata(info->device);
2322         struct rk_fb_par *fb_par = (struct rk_fb_par *)info->par;
2323         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
2324         struct fb_fix_screeninfo *fix = &info->fix;
2325         struct rk_lcdc_win *win;
2326         int enable;     /* enable fb:1 enable;0 disable */
2327         int ovl;        /* overlay:0 win1 on the top of win0;1,win0 on the top of win1 */
2328         int num_buf;    /* buffer_number */
2329         int ret;
2330         struct rk_fb_win_cfg_data win_data;
2331         unsigned int dsp_addr[4];
2332         int list_stat;
2333
2334         int win_id = dev_drv->ops->fb_get_win_id(dev_drv, info->fix.id);
2335
2336         void __user *argp = (void __user *)arg;
2337         win = dev_drv->win[win_id];
2338
2339         switch (cmd) {
2340         case RK_FBIOSET_HWC_ADDR:
2341         {
2342                 u32 hwc_phy[1];
2343                 if (copy_from_user(hwc_phy, argp, 4))
2344                         return -EFAULT;
2345 #ifdef CONFIG_ROCKCHIP_IOMMU
2346                 if (!dev_drv->iommu_enabled) {
2347 #endif
2348                         fix->smem_start = hwc_phy[0];
2349 #ifdef CONFIG_ROCKCHIP_IOMMU
2350                 } else {
2351                         int usr_fd;
2352                         struct ion_handle *hdl;
2353                         ion_phys_addr_t phy_addr;
2354                         size_t len;
2355
2356                         usr_fd = hwc_phy[0];
2357                         if (!usr_fd) {
2358                                 fix->smem_start = 0;
2359                                 fix->mmio_start = 0;
2360                                 dev_drv->ops->open(dev_drv, win_id, 0);
2361                                 break;
2362                         }
2363
2364                         if (ion_hwc[0] != 0) {
2365                                 ion_free(rk_fb->ion_client, ion_hwc[0]);
2366                                 ion_hwc[0] = 0;
2367                         }
2368
2369                         hdl = ion_import_dma_buf(rk_fb->ion_client, usr_fd);
2370                         if (IS_ERR(hdl)) {
2371                                 dev_err(info->dev, "failed to get hwc ion handle:%ld\n",
2372                                         PTR_ERR(hdl));
2373                                 return -EFAULT;
2374                         }
2375
2376                         ret = ion_map_iommu(dev_drv->dev, rk_fb->ion_client, hdl,
2377                                                 (unsigned long *)&phy_addr,
2378                                                 (unsigned long *)&len);
2379                         if (ret < 0) {
2380                                 dev_err(info->dev, "ion map to get hwc phy addr failed");
2381                                 ion_free(rk_fb->ion_client, hdl);
2382                                 return -ENOMEM;
2383                         }
2384                         fix->smem_start = phy_addr;
2385                         ion_hwc[0] = hdl;
2386                 }
2387 #endif
2388                 break;
2389         }
2390         case RK_FBIOSET_YUV_ADDR:
2391                 {
2392                         u32 yuv_phy[2];
2393
2394                         if (copy_from_user(yuv_phy, argp, 8))
2395                                 return -EFAULT;
2396                         #ifdef CONFIG_ROCKCHIP_IOMMU
2397                         if (!dev_drv->iommu_enabled || !strcmp(info->fix.id, "fb0")) {
2398                         #endif
2399                                 fix->smem_start = yuv_phy[0];
2400                                 fix->mmio_start = yuv_phy[1];
2401                         #ifdef CONFIG_ROCKCHIP_IOMMU
2402                         } else {
2403                                 int usr_fd, offset, tmp;
2404                                 struct ion_handle *hdl;
2405                                 ion_phys_addr_t phy_addr;
2406                                 size_t len;
2407
2408                                 usr_fd = yuv_phy[0];
2409                                 offset = yuv_phy[1] - yuv_phy[0];
2410                                 if (!usr_fd) {
2411                                         fix->smem_start = 0;
2412                                         fix->mmio_start = 0;
2413                                         break;
2414                                 }
2415
2416                                 if (ion_hanle[ION_MAX - 1] != 0) {
2417                                         /*ion_unmap_kernel(rk_fb->ion_client, ion_hanle[ION_MAX - 1]);*/
2418                                         /*ion_unmap_iommu(dev_drv->dev, rk_fb->ion_client, ion_hanle[ION_MAX - 1]);*/
2419                                         ion_free(rk_fb->ion_client, ion_hanle[ION_MAX - 1]);
2420                                         ion_hanle[ION_MAX - 1] = 0;
2421                                 }
2422
2423                                 hdl = ion_import_dma_buf(rk_fb->ion_client, usr_fd);
2424                                 if (IS_ERR(hdl)) {
2425                                         dev_err(info->dev, "failed to get ion handle:%ld\n",
2426                                                 PTR_ERR(hdl));
2427                                         return -EFAULT;
2428                                 }
2429
2430                                 ret = ion_map_iommu(dev_drv->dev, rk_fb->ion_client, hdl,
2431                                                         (unsigned long *)&phy_addr,
2432                                                         (unsigned long *)&len);
2433                                 if (ret < 0) {
2434                                         dev_err(info->dev, "ion map to get phy addr failed");
2435                                         ion_free(rk_fb->ion_client, hdl);
2436                                         return -ENOMEM;
2437                                 }
2438                                 fix->smem_start = phy_addr;
2439                                 fix->mmio_start = phy_addr + offset;
2440                                 fix->smem_len = len;
2441                                 /*info->screen_base = ion_map_kernel(rk_fb->ion_client, hdl);*/
2442
2443                                 ion_hanle[0] = hdl;
2444                                 for (tmp = ION_MAX - 1; tmp > 0; tmp--)
2445                                         ion_hanle[tmp] = ion_hanle[tmp - 1];
2446                                 ion_hanle[0] = 0;
2447                         }
2448                         #endif
2449                         break;
2450                 }
2451         case RK_FBIOSET_ENABLE:
2452                 if (copy_from_user(&enable, argp, sizeof(enable)))
2453                         return -EFAULT;
2454                                 if (enable)
2455                                         fb_par->state++;
2456                                 else
2457                                         fb_par->state--;
2458                 dev_drv->ops->open(dev_drv, win_id, enable);
2459                 break;
2460         case RK_FBIOGET_ENABLE:
2461                 enable = dev_drv->ops->get_win_state(dev_drv, win_id);
2462                 if (copy_to_user(argp, &enable, sizeof(enable)))
2463                         return -EFAULT;
2464                 break;
2465         case RK_FBIOSET_OVERLAY_STA:
2466                 if (copy_from_user(&ovl, argp, sizeof(ovl)))
2467                         return -EFAULT;
2468                 dev_drv->ops->ovl_mgr(dev_drv, ovl, 1);
2469                 break;
2470         case RK_FBIOGET_OVERLAY_STA:
2471                 ovl = dev_drv->ops->ovl_mgr(dev_drv, 0, 0);
2472                 if (copy_to_user(argp, &ovl, sizeof(ovl)))
2473                         return -EFAULT;
2474                 break;
2475         case RK_FBIOPUT_NUM_BUFFERS:
2476                 if (copy_from_user(&num_buf, argp, sizeof(num_buf)))
2477                         return -EFAULT;
2478                 dev_drv->num_buf = num_buf;
2479                 break;
2480         case RK_FBIOSET_VSYNC_ENABLE:
2481                 if (copy_from_user(&enable, argp, sizeof(enable)))
2482                         return -EFAULT;
2483                 dev_drv->vsync_info.active = enable;
2484                 break;
2485
2486         case RK_FBIOGET_DSP_ADDR:
2487                 dev_drv->ops->get_dsp_addr(dev_drv, dsp_addr);
2488                 if (copy_to_user(argp, &dsp_addr, sizeof(dsp_addr)))
2489                         return -EFAULT;
2490                 break;
2491         case RK_FBIOGET_LIST_STA:
2492                 list_stat = rk_fb_get_list_stat(dev_drv);
2493                 if (copy_to_user(argp, &list_stat, sizeof(list_stat)))
2494                         return -EFAULT;
2495
2496                 break;
2497         case RK_FBIOGET_IOMMU_STA:
2498                 if (copy_to_user(argp, &dev_drv->iommu_enabled,
2499                                  sizeof(dev_drv->iommu_enabled)))
2500                         return -EFAULT;
2501                 break;
2502 #if defined(CONFIG_ION_ROCKCHIP)
2503         case RK_FBIOSET_DMABUF_FD:
2504                 {
2505                         int usr_fd;
2506                         struct ion_handle *hdl;
2507                         ion_phys_addr_t phy_addr;
2508                         size_t len;
2509                         if (copy_from_user(&usr_fd, argp, sizeof(usr_fd)))
2510                                 return -EFAULT;
2511                         hdl = ion_import_dma_buf(rk_fb->ion_client, usr_fd);
2512                         ion_phys(rk_fb->ion_client, hdl, &phy_addr, &len);
2513                         fix->smem_start = phy_addr;
2514                         break;
2515                 }
2516         case RK_FBIOGET_DMABUF_FD:
2517                 {
2518                         int fd = -1;
2519
2520                         if (IS_ERR_OR_NULL(fb_par->ion_hdl)) {
2521                                 dev_err(info->dev,
2522                                         "get dma_buf fd failed,ion handle is err\n");
2523                                 return PTR_ERR(fb_par->ion_hdl);
2524                         }
2525                         fd = ion_share_dma_buf_fd(rk_fb->ion_client,
2526                                                   fb_par->ion_hdl);
2527                         if (fd < 0) {
2528                                 dev_err(info->dev,
2529                                         "ion_share_dma_buf_fd failed\n");
2530                                 return fd;
2531                         }
2532                         if (copy_to_user(argp, &fd, sizeof(fd)))
2533                                 return -EFAULT;
2534                         break;
2535                 }
2536 #endif
2537         case RK_FBIOSET_CLEAR_FB:
2538                 memset(fb_par->fb_virt_base, 0, fb_par->fb_size);
2539                 break;
2540         case RK_FBIOSET_CONFIG_DONE:
2541                 {
2542                         int curr = 0;
2543                         struct timespec now;
2544
2545                         getnstimeofday(&now);
2546                         curr = now.tv_sec * 1000000 + now.tv_nsec / 1000;
2547                         cfgdone_distlist[cfgdone_index++] =
2548                             curr - cfgdone_lasttime;
2549                         /*
2550                            printk("%d ", curr - cfgdone_lasttime);
2551                          */
2552                         cfgdone_lasttime = curr;
2553                         if (cfgdone_index >= 10)
2554                                 cfgdone_index = 0;
2555                 }
2556                 if (copy_from_user(&win_data,
2557                                    (struct rk_fb_win_cfg_data __user *)argp,
2558                                    sizeof(win_data))) {
2559                         ret = -EFAULT;
2560                         break;
2561                 };
2562
2563                 dev_drv->wait_fs = win_data.wait_fs;
2564                 rk_fb_set_win_config(info, &win_data);
2565
2566                 if (copy_to_user((struct rk_fb_win_cfg_data __user *)arg,
2567                                  &win_data, sizeof(win_data))) {
2568                         ret = -EFAULT;
2569                         break;
2570                 }
2571                 memset(&win_data, 0, sizeof(struct rk_fb_win_cfg_data));
2572                 break;
2573         default:
2574                 dev_drv->ops->ioctl(dev_drv, cmd, arg, win_id);
2575                 break;
2576         }
2577
2578         return 0;
2579 }
2580
2581 static int rk_fb_blank(int blank_mode, struct fb_info *info)
2582 {
2583         struct rk_fb_par *fb_par = (struct rk_fb_par *)info->par;
2584         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
2585         struct fb_fix_screeninfo *fix = &info->fix;
2586         int win_id;
2587 #if defined(CONFIG_RK_HDMI)
2588         struct rk_fb *rk_fb = dev_get_drvdata(info->device);
2589 #endif
2590
2591         win_id = dev_drv->ops->fb_get_win_id(dev_drv, fix->id);
2592         if (win_id < 0)
2593                 return -ENODEV;
2594 #if defined(CONFIG_RK_HDMI)
2595         if ((rk_fb->disp_mode == ONE_DUAL) &&
2596             (hdmi_get_hotplug() == HDMI_HPD_ACTIVED)) {
2597                 printk(KERN_INFO "hdmi is connect , not blank lcdc\n");
2598         } else
2599 #endif
2600         {
2601                 dev_drv->ops->blank(dev_drv, win_id, blank_mode);
2602         }
2603         return 0;
2604 }
2605
2606 static int rk_fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
2607 {
2608         if ((0 == var->xres_virtual) || (0 == var->yres_virtual) ||
2609             (0 == var->xres) || (0 == var->yres) || (var->xres < 16) ||
2610             ((16 != var->bits_per_pixel) &&
2611             (32 != var->bits_per_pixel) &&
2612             (24 != var->bits_per_pixel))) {
2613                 dev_err(info->dev, "%s check var fail 1:\n"
2614                         "xres_vir:%d>>yres_vir:%d\n"
2615                         "xres:%d>>yres:%d\n"
2616                         "bits_per_pixel:%d\n",
2617                         info->fix.id,
2618                         var->xres_virtual,
2619                         var->yres_virtual,
2620                         var->xres, var->yres, var->bits_per_pixel);
2621                 return -EINVAL;
2622         }
2623
2624         if (((var->xoffset + var->xres) > var->xres_virtual) ||
2625             ((var->yoffset + var->yres) > (var->yres_virtual))) {
2626                 dev_err(info->dev, "%s check_var fail 2:\n"
2627                         "xoffset:%d>>xres:%d>>xres_vir:%d\n"
2628                         "yoffset:%d>>yres:%d>>yres_vir:%d\n",
2629                         info->fix.id,
2630                         var->xoffset,
2631                         var->xres,
2632                         var->xres_virtual,
2633                         var->yoffset, var->yres, var->yres_virtual);
2634                 return -EINVAL;
2635         }
2636
2637         return 0;
2638 }
2639
2640 static ssize_t rk_fb_read(struct fb_info *info, char __user *buf,
2641                           size_t count, loff_t *ppos)
2642 {
2643         unsigned long p = *ppos;
2644         u8 *buffer, *dst;
2645         u8 __iomem *src;
2646         int c, cnt = 0, err = 0;
2647         unsigned long total_size;
2648         struct rk_fb_par *fb_par = (struct rk_fb_par *)info->par;
2649         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
2650         struct rk_lcdc_win *win = NULL;
2651         int win_id = 0;
2652
2653         win_id = dev_drv->ops->fb_get_win_id(dev_drv, info->fix.id);
2654         if (win_id < 0)
2655                 return -ENODEV;
2656         else
2657                 win = dev_drv->win[win_id];
2658
2659         /* only read the current frame buffer */
2660         if (win->area[0].format == RGB565) {
2661                 total_size = win->area[0].y_vir_stride * win->area[0].yact << 1;
2662         } else if ((win->area[0].format == YUV420) ||
2663                    (win->area[0].format == YUV420_NV21)) {
2664                 total_size =
2665                     (win->area[0].y_vir_stride * win->area[0].yact * 6);
2666         } else {
2667                 total_size = win->area[0].y_vir_stride * win->area[0].yact << 2;
2668         }
2669         if (p >= total_size)
2670                 return 0;
2671
2672         if (count >= total_size)
2673                 count = total_size;
2674
2675         if (count + p > total_size)
2676                 count = total_size - p;
2677
2678         buffer = kmalloc((count > PAGE_SIZE) ? PAGE_SIZE : count, GFP_KERNEL);
2679         if (!buffer)
2680                 return -ENOMEM;
2681
2682         src = (u8 __iomem *)(info->screen_base + p + win->area[0].y_offset);
2683
2684         while (count) {
2685                 c = (count > PAGE_SIZE) ? PAGE_SIZE : count;
2686                 dst = buffer;
2687                 fb_memcpy_fromfb(dst, src, c);
2688                 dst += c;
2689                 src += c;
2690
2691                 if (copy_to_user(buf, buffer, c)) {
2692                         err = -EFAULT;
2693                         break;
2694                 }
2695                 *ppos += c;
2696                 buf += c;
2697                 cnt += c;
2698                 count -= c;
2699         }
2700
2701         kfree(buffer);
2702
2703         return (err) ? err : cnt;
2704 }
2705
2706 static ssize_t rk_fb_write(struct fb_info *info, const char __user *buf,
2707                            size_t count, loff_t *ppos)
2708 {
2709         unsigned long p = *ppos;
2710         u8 *buffer, *src;
2711         u8 __iomem *dst;
2712         int c, cnt = 0, err = 0;
2713         unsigned long total_size;
2714         struct rk_fb_par *fb_par = (struct rk_fb_par *)info->par;
2715         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
2716         struct rk_lcdc_win *win = NULL;
2717         int win_id = 0;
2718
2719         win_id = dev_drv->ops->fb_get_win_id(dev_drv, info->fix.id);
2720         if (win_id < 0)
2721                 return -ENODEV;
2722         else
2723                 win = dev_drv->win[win_id];
2724
2725         /* write the current frame buffer */
2726         if (win->area[0].format == RGB565)
2727                 total_size = win->area[0].xact * win->area[0].yact << 1;
2728         else
2729                 total_size = win->area[0].xact * win->area[0].yact << 2;
2730
2731         if (p > total_size)
2732                 return -EFBIG;
2733
2734         if (count > total_size) {
2735                 err = -EFBIG;
2736                 count = total_size;
2737         }
2738
2739         if (count + p > total_size) {
2740                 if (!err)
2741                         err = -ENOSPC;
2742
2743                 count = total_size - p;
2744         }
2745
2746         buffer = kmalloc((count > PAGE_SIZE) ? PAGE_SIZE : count, GFP_KERNEL);
2747         if (!buffer)
2748                 return -ENOMEM;
2749
2750         dst = (u8 __iomem *)(info->screen_base + p + win->area[0].y_offset);
2751
2752         while (count) {
2753                 c = (count > PAGE_SIZE) ? PAGE_SIZE : count;
2754                 src = buffer;
2755
2756                 if (copy_from_user(src, buf, c)) {
2757                         err = -EFAULT;
2758                         break;
2759                 }
2760
2761                 fb_memcpy_tofb(dst, src, c);
2762                 dst += c;
2763                 src += c;
2764                 *ppos += c;
2765                 buf += c;
2766                 cnt += c;
2767                 count -= c;
2768         }
2769
2770         kfree(buffer);
2771
2772         return (cnt) ? cnt : err;
2773 }
2774
2775 static int rk_fb_set_par(struct fb_info *info)
2776 {
2777         struct fb_var_screeninfo *var = &info->var;
2778         struct fb_fix_screeninfo *fix = &info->fix;
2779         struct rk_fb_par *fb_par = (struct rk_fb_par *)info->par;
2780         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
2781         struct rk_fb *rk_fb = dev_get_drvdata(info->device);
2782         struct rk_lcdc_win *win = NULL;
2783         struct rk_screen *screen = dev_drv->cur_screen;
2784         int win_id = 0;
2785         u32 cblen = 0, crlen = 0;
2786         u16 xsize = 0, ysize = 0;       /* winx display window height/width --->LCDC_WINx_DSP_INFO */
2787         u32 xoffset = var->xoffset;     /* offset from virtual to visible */
2788         u32 yoffset = var->yoffset;
2789         u16 xpos = (var->nonstd >> 8) & 0xfff;  /*visiable pos in panel */
2790         u16 ypos = (var->nonstd >> 20) & 0xfff;
2791         u32 xvir = var->xres_virtual;
2792         u32 yvir = var->yres_virtual;
2793         u8 data_format = var->nonstd & 0xff;
2794         u8 fb_data_fmt;
2795         u8 pixel_width;
2796         u32 vir_width_bit;
2797         u32 stride, uv_stride;
2798         u32 stride_32bit_1;
2799         u32 stride_32bit_2;
2800         u16 uv_x_off, uv_y_off, uv_y_act;
2801         u8 is_pic_yuv = 0;
2802
2803         var->pixclock = dev_drv->pixclock;
2804         win_id = dev_drv->ops->fb_get_win_id(dev_drv, info->fix.id);
2805         if (win_id < 0)
2806                 return -ENODEV;
2807         else
2808                 win = dev_drv->win[win_id];
2809
2810         /* if the application has specific the horizontal and vertical display size */
2811         if (var->grayscale >> 8) {
2812                 xsize = (var->grayscale >> 8) & 0xfff;
2813                 ysize = (var->grayscale >> 20) & 0xfff;
2814                 if (xsize > screen->mode.xres)
2815                         xsize = screen->mode.xres;
2816                 if (ysize > screen->mode.yres)
2817                         ysize = screen->mode.yres;
2818         } else {                /*ohterwise  full  screen display */
2819                 xsize = screen->mode.xres;
2820                 ysize = screen->mode.yres;
2821         }
2822
2823         fb_data_fmt = rk_fb_data_fmt(data_format, var->bits_per_pixel);
2824         if (fb_data_fmt >= FBDC_RGB_565) {
2825                 win->area[0].fbdc_en = 1;
2826                 win->area[0].fbdc_cor_en = 1;
2827         } else {
2828                 win->area[0].fbdc_en = 0;
2829                 win->area[0].fbdc_cor_en = 0;
2830         }
2831         pixel_width = rk_fb_pixel_width(fb_data_fmt);
2832         vir_width_bit = pixel_width * xvir;
2833         /* pixel_width = byte_num * 8 */
2834         stride_32bit_1 = ALIGN_N_TIMES(vir_width_bit, 32) / 8;
2835         stride_32bit_2 = ALIGN_N_TIMES(vir_width_bit * 2, 32) / 8;
2836
2837         switch (fb_data_fmt) {
2838         case YUV422:
2839         case YUV422_A:
2840                 is_pic_yuv = 1;
2841                 stride = stride_32bit_1;
2842                 uv_stride = stride_32bit_1 >> 1;
2843                 uv_x_off = xoffset >> 1;
2844                 uv_y_off = yoffset;
2845                 fix->line_length = stride;
2846                 cblen = crlen = (xvir * yvir) >> 1;
2847                 uv_y_act = win->area[0].yact >> 1;
2848                 break;
2849         case YUV420:            /* nv12 */
2850         case YUV420_NV21:       /* nv21 */
2851         case YUV420_A:
2852                 is_pic_yuv = 1;
2853                 stride = stride_32bit_1;
2854                 uv_stride = stride_32bit_1;
2855                 uv_x_off = xoffset;
2856                 uv_y_off = yoffset >> 1;
2857                 fix->line_length = stride;
2858                 cblen = crlen = (xvir * yvir) >> 2;
2859                 uv_y_act = win->area[0].yact >> 1;
2860                 break;
2861         case YUV444:
2862         case YUV444_A:
2863                 is_pic_yuv = 1;
2864                 stride = stride_32bit_1;
2865                 uv_stride = stride_32bit_2;
2866                 uv_x_off = xoffset * 2;
2867                 uv_y_off = yoffset;
2868                 fix->line_length = stride << 2;
2869                 cblen = crlen = (xvir * yvir);
2870                 uv_y_act = win->area[0].yact;
2871                 break;
2872         default:
2873                 stride = stride_32bit_1;        /* default rgb */
2874                 fix->line_length = stride;
2875                 break;
2876         }
2877
2878         win->area[0].format = fb_data_fmt;
2879         win->area[0].y_vir_stride = stride >> 2;
2880         win->area[0].uv_vir_stride = uv_stride >> 2;
2881         win->area[0].xpos = xpos;
2882         win->area[0].ypos = ypos;
2883         win->area[0].xsize = xsize;
2884         win->area[0].ysize = ysize;
2885         win->area[0].xact = var->xres;  /* winx active window height,is a wint of vir */
2886         win->area[0].yact = var->yres;
2887         win->area[0].xvir = var->xres_virtual;  /* virtual resolution  stride --->LCDC_WINx_VIR */
2888         win->area[0].yvir = var->yres_virtual;
2889         win->area[0].xoff = xoffset;
2890         win->area[0].yoff = yoffset;
2891
2892         win->area_num = 1;
2893         win->alpha_mode = 4;    /* AB_SRC_OVER; */
2894         win->alpha_en = ((win->area[0].format == ARGB888) ||
2895                          (win->area[0].format == FBDC_ARGB_888) ||
2896                          (win->area[0].format == FBDC_ABGR_888) ||
2897                          (win->area[0].format == ABGR888)) ? 1 : 0;
2898         win->g_alpha_val = 0;
2899
2900         if (rk_fb->disp_policy == DISPLAY_POLICY_BOX &&
2901             (win->area[0].format == YUV420 ||
2902              win->area[0].format == YUV420_NV21 ||
2903              win->area[0].format == YUV420_A))
2904                 win->state = 1;
2905
2906         dev_drv->ops->set_par(dev_drv, win_id);
2907
2908         return 0;
2909 }
2910
2911 static inline unsigned int chan_to_field(unsigned int chan,
2912                                          struct fb_bitfield *bf)
2913 {
2914         chan &= 0xffff;
2915         chan >>= 16 - bf->length;
2916         return chan << bf->offset;
2917 }
2918
2919 static int fb_setcolreg(unsigned regno,
2920                         unsigned red, unsigned green, unsigned blue,
2921                         unsigned transp, struct fb_info *info)
2922 {
2923         unsigned int val;
2924
2925         switch (info->fix.visual) {
2926         case FB_VISUAL_TRUECOLOR:
2927                 /* true-colour, use pseudo-palette */
2928                 if (regno < 16) {
2929                         u32 *pal = info->pseudo_palette;
2930                         val = chan_to_field(red, &info->var.red);
2931                         val |= chan_to_field(green, &info->var.green);
2932                         val |= chan_to_field(blue, &info->var.blue);
2933                         pal[regno] = val;
2934                 }
2935                 break;
2936         default:
2937                 return -1;      /* unknown type */
2938         }
2939
2940         return 0;
2941 }
2942
2943 static int rk_fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
2944 {
2945         struct rk_fb *rk_fb = platform_get_drvdata(fb_pdev);
2946         struct rk_fb_par *fb_par = (struct rk_fb_par *)info->par;
2947         struct ion_handle *handle = fb_par->ion_hdl;
2948         struct dma_buf *dma_buf = NULL;
2949
2950         if (IS_ERR_OR_NULL(handle)) {
2951                 dev_err(info->dev, "failed to get ion handle:%ld\n",
2952                         PTR_ERR(handle));
2953                 return -ENOMEM;
2954         }
2955         dma_buf = ion_share_dma_buf(rk_fb->ion_client, handle);
2956         if (IS_ERR_OR_NULL(dma_buf)) {
2957                 printk("get ion share dma buf failed\n");
2958                 return -ENOMEM;
2959         }
2960
2961         vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
2962
2963         return dma_buf_mmap(dma_buf, vma, 0);
2964 }
2965
2966 static struct fb_ops fb_ops = {
2967         .owner = THIS_MODULE,
2968         .fb_open = rk_fb_open,
2969         .fb_release = rk_fb_close,
2970         .fb_check_var = rk_fb_check_var,
2971         .fb_set_par = rk_fb_set_par,
2972         .fb_blank = rk_fb_blank,
2973         .fb_ioctl = rk_fb_ioctl,
2974         .fb_compat_ioctl = rk_fb_ioctl,
2975         .fb_pan_display = rk_fb_pan_display,
2976         .fb_read = rk_fb_read,
2977         .fb_write = rk_fb_write,
2978         .fb_setcolreg = fb_setcolreg,
2979         .fb_fillrect = cfb_fillrect,
2980         .fb_copyarea = cfb_copyarea,
2981         .fb_imageblit = cfb_imageblit,
2982 };
2983
2984 static struct fb_var_screeninfo def_var = {
2985 #if defined(CONFIG_LOGO_LINUX_BMP)
2986         .red = {16, 8, 0},
2987         .green = {8, 8, 0},
2988         .blue = {0, 8, 0},
2989         .transp = {0, 0, 0},
2990         .nonstd = HAL_PIXEL_FORMAT_BGRA_8888,
2991 #else
2992         .red = {11, 5, 0},
2993         .green = {5, 6, 0},
2994         .blue = {0, 5, 0},
2995         .transp = {0, 0, 0},
2996         .nonstd = HAL_PIXEL_FORMAT_RGB_565,     /* (ypos<<20+xpos<<8+format) format */
2997 #endif
2998         .grayscale = 0,         /* (ysize<<20+xsize<<8) */
2999         .activate = FB_ACTIVATE_NOW,
3000         .accel_flags = 0,
3001         .vmode = FB_VMODE_NONINTERLACED,
3002 };
3003
3004 static struct fb_fix_screeninfo def_fix = {
3005         .type = FB_TYPE_PACKED_PIXELS,
3006         .type_aux = 0,
3007         .xpanstep = 1,
3008         .ypanstep = 1,
3009         .ywrapstep = 0,
3010         .accel = FB_ACCEL_NONE,
3011         .visual = FB_VISUAL_TRUECOLOR,
3012
3013 };
3014
3015 static int rk_fb_wait_for_vsync_thread(void *data)
3016 {
3017         struct rk_lcdc_driver *dev_drv = data;
3018         struct rk_fb *rk_fb = platform_get_drvdata(fb_pdev);
3019         struct fb_info *fbi = rk_fb->fb[0];
3020
3021         while (!kthread_should_stop()) {
3022                 ktime_t timestamp = dev_drv->vsync_info.timestamp;
3023                 int ret = wait_event_interruptible(dev_drv->vsync_info.wait,
3024                                 !ktime_equal(timestamp, dev_drv->vsync_info.timestamp) &&
3025                                 (dev_drv->vsync_info.active || dev_drv->vsync_info.irq_stop));
3026
3027                 if (!ret)
3028                         sysfs_notify(&fbi->dev->kobj, NULL, "vsync");
3029         }
3030
3031         return 0;
3032 }
3033
3034 static ssize_t rk_fb_vsync_show(struct device *dev,
3035                                 struct device_attribute *attr, char *buf)
3036 {
3037         struct fb_info *fbi = dev_get_drvdata(dev);
3038         struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
3039         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
3040         return scnprintf(buf, PAGE_SIZE, "%llu\n",
3041                          ktime_to_ns(dev_drv->vsync_info.timestamp));
3042 }
3043
3044 static DEVICE_ATTR(vsync, S_IRUGO, rk_fb_vsync_show, NULL);
3045
3046 /*
3047  * this two function is for other module that in the kernel which
3048  * need show image directly through fb
3049  * fb_id:we have 4 fb here,default we use fb0 for ui display
3050  */
3051 struct fb_info *rk_get_fb(int fb_id)
3052 {
3053         struct rk_fb *inf = platform_get_drvdata(fb_pdev);
3054         struct fb_info *fb = inf->fb[fb_id];
3055         return fb;
3056 }
3057 EXPORT_SYMBOL(rk_get_fb);
3058
3059 void rk_direct_fb_show(struct fb_info *fbi)
3060 {
3061         rk_fb_set_par(fbi);
3062         rk_fb_pan_display(&fbi->var, fbi);
3063 }
3064 EXPORT_SYMBOL(rk_direct_fb_show);
3065
3066 int rk_fb_dpi_open(bool open)
3067 {
3068         struct rk_lcdc_driver *dev_drv = NULL;
3069         dev_drv = rk_get_prmry_lcdc_drv();
3070
3071         if (dev_drv->ops->dpi_open)
3072                 dev_drv->ops->dpi_open(dev_drv, open);
3073         return 0;
3074 }
3075
3076 int rk_fb_dpi_win_sel(int win_id)
3077 {
3078         struct rk_lcdc_driver *dev_drv = NULL;
3079         dev_drv = rk_get_prmry_lcdc_drv();
3080
3081         if (dev_drv->ops->dpi_win_sel)
3082                 dev_drv->ops->dpi_win_sel(dev_drv, win_id);
3083         return 0;
3084 }
3085
3086 int rk_fb_dpi_status(void)
3087 {
3088         int ret = 0;
3089         struct rk_lcdc_driver *dev_drv = NULL;
3090
3091         dev_drv = rk_get_prmry_lcdc_drv();
3092         if (dev_drv->ops->dpi_status)
3093                 ret = dev_drv->ops->dpi_status(dev_drv);
3094
3095         return ret;
3096 }
3097
3098 /*
3099  * function: this function will be called by display device, enable/disable lcdc
3100  * @screen: screen timing to be set to lcdc
3101  * @enable: 0 disable lcdc; 1 enable change lcdc timing; 2 just enable dclk
3102  * @lcdc_id: the lcdc id the display device attached ,0 or 1
3103  */
3104 int rk_fb_switch_screen(struct rk_screen *screen, int enable, int lcdc_id)
3105 {
3106         struct rk_fb *rk_fb =  platform_get_drvdata(fb_pdev);
3107         struct fb_info *info = NULL;
3108         struct rk_fb_par *fb_par = NULL;
3109         struct rk_lcdc_driver *dev_drv = NULL;
3110         char name[6] = {0};
3111         int i, win_id, load_screen = 0;
3112
3113         if (unlikely(!rk_fb) || unlikely(!screen))
3114                 return -ENODEV;
3115
3116         hdmi_switch_complete = 0;
3117         /* get lcdc driver */
3118         sprintf(name, "lcdc%d", lcdc_id);
3119         if (rk_fb->disp_mode != DUAL)
3120                 dev_drv = rk_fb->lcdc_dev_drv[0];
3121         else
3122                 dev_drv = rk_get_lcdc_drv(name);
3123
3124         if (dev_drv == NULL) {
3125                 printk(KERN_ERR "%s driver not found!", name);
3126                 return -ENODEV;
3127         }
3128         if (screen->type == SCREEN_HDMI)
3129                 printk("hdmi %s lcdc%d\n", enable ? "connect to" : "remove from",
3130                         dev_drv->id);
3131         else if (screen->type == SCREEN_TVOUT ||
3132                      screen->type == SCREEN_TVOUT_TEST )
3133                 printk("cvbs %s lcdc%d\n", enable ? "connect to" : "remove from",
3134                         dev_drv->id);
3135         if (enable == 2 /*&& dev_drv->enable*/)
3136                 return 0;
3137
3138         if ((rk_fb->disp_mode == ONE_DUAL) ||
3139             (rk_fb->disp_mode == NO_DUAL)) {
3140                 if ((dev_drv->ops->backlight_close) &&
3141                     (rk_fb->disp_policy != DISPLAY_POLICY_BOX))
3142                         dev_drv->ops->backlight_close(dev_drv, 1);
3143                 if (dev_drv->ops->dsp_black)
3144                         dev_drv->ops->dsp_black(dev_drv, 1);
3145                 if ((dev_drv->ops->set_screen_scaler) &&
3146                     (rk_fb->disp_policy != DISPLAY_POLICY_BOX))
3147                         dev_drv->ops->set_screen_scaler(dev_drv,
3148                                                         dev_drv->screen0, 0);
3149         }
3150         if (dev_drv->uboot_logo && (screen->type != dev_drv->cur_screen->type))
3151                dev_drv->uboot_logo = 0;
3152         if (!enable) {
3153                 /* if screen type is different, we do not disable lcdc. */
3154                 if (dev_drv->cur_screen->type != screen->type)
3155                         return 0;
3156
3157                 /* if used one lcdc to dual disp, no need to close win */
3158                 if ((rk_fb->disp_mode == ONE_DUAL) ||
3159                     (rk_fb->disp_mode == NO_DUAL)) {
3160                         dev_drv->cur_screen = dev_drv->screen0;
3161                         dev_drv->ops->load_screen(dev_drv, 1);
3162
3163                         /* force modify dsp size */
3164                         info = rk_fb->fb[dev_drv->fb_index_base];
3165                         info->var.grayscale &= 0xff;
3166                         info->var.grayscale |=
3167                                 (dev_drv->cur_screen->mode.xres << 8) +
3168                                 (dev_drv->cur_screen->mode.yres << 20);
3169                         mutex_lock(&dev_drv->win_config);
3170                         info->fbops->fb_set_par(info);
3171                         info->fbops->fb_pan_display(&info->var, info);
3172                         mutex_unlock(&dev_drv->win_config);
3173
3174                         if (dev_drv->ops->dsp_black)
3175                                 dev_drv->ops->dsp_black(dev_drv, 0);
3176                         if ((dev_drv->ops->backlight_close) &&
3177                             (rk_fb->disp_policy != DISPLAY_POLICY_BOX))
3178                                 dev_drv->ops->backlight_close(dev_drv, 0);
3179                 } else if (rk_fb->num_lcdc > 1) {
3180                         /* If there is more than one lcdc device, we disable
3181                            the layer which attached to this device */
3182                         dev_drv->suspend_flag = 1;
3183                         flush_kthread_worker(&dev_drv->update_regs_worker);
3184                         for (i = 0; i < dev_drv->lcdc_win_num; i++) {
3185                                 if (dev_drv->win[i] && dev_drv->win[i]->state)
3186                                         dev_drv->ops->open(dev_drv, i, 0);
3187                         }
3188                 }
3189
3190                 hdmi_switch_complete = 0;
3191                 return 0;
3192         } else {
3193                 if (dev_drv->screen1)
3194                         dev_drv->cur_screen = dev_drv->screen1;
3195
3196                 memcpy(dev_drv->cur_screen, screen, sizeof(struct rk_screen));
3197                 dev_drv->cur_screen->xsize = dev_drv->cur_screen->mode.xres;
3198                 dev_drv->cur_screen->ysize = dev_drv->cur_screen->mode.yres;
3199                 dev_drv->cur_screen->x_mirror = dev_drv->rotate_mode & X_MIRROR;
3200                 dev_drv->cur_screen->y_mirror = dev_drv->rotate_mode & Y_MIRROR;
3201         }
3202         if ((!dev_drv->uboot_logo) ||
3203             (rk_fb->disp_policy != DISPLAY_POLICY_BOX)) {
3204                 for (i = 0; i < dev_drv->lcdc_win_num; i++) {
3205                         info = rk_fb->fb[dev_drv->fb_index_base + i];
3206                         fb_par = (struct rk_fb_par *)info->par;
3207                         win_id = dev_drv->ops->fb_get_win_id(dev_drv, info->fix.id);
3208                         if (dev_drv->win[win_id]) {
3209                                 if (fb_par->state) {
3210                                         if (!dev_drv->win[win_id]->state) {
3211                                                 dev_drv->ops->open(dev_drv, win_id, 1);
3212                                                 dev_drv->suspend_flag = 0;
3213                                         }
3214                                         if (!load_screen) {
3215                                                 dev_drv->ops->load_screen(dev_drv, 1);
3216                                                 load_screen = 1;
3217                                         }
3218                                         info->var.activate |= FB_ACTIVATE_FORCE;
3219                                         if (rk_fb->disp_mode == ONE_DUAL) {
3220                                                 info->var.grayscale &= 0xff;
3221                                                 info->var.grayscale |=
3222                                                         (dev_drv->cur_screen->xsize << 8) +
3223                                                         (dev_drv->cur_screen->ysize << 20);
3224                                         }
3225
3226                                         mutex_lock(&dev_drv->win_config);
3227                                         info->fbops->fb_set_par(info);
3228                                         info->fbops->fb_pan_display(&info->var, info);
3229                                         mutex_unlock(&dev_drv->win_config);
3230                                 }
3231                         }
3232                 }
3233         }else {
3234                 dev_drv->uboot_logo = 0;
3235         }
3236         hdmi_switch_complete = 1;
3237         if ((rk_fb->disp_mode == ONE_DUAL) || (rk_fb->disp_mode == NO_DUAL)) {
3238                 if ((dev_drv->ops->set_screen_scaler) &&
3239                     (rk_fb->disp_policy != DISPLAY_POLICY_BOX))
3240                         dev_drv->ops->set_screen_scaler(dev_drv, dev_drv->screen0, 1);
3241                 if (dev_drv->ops->dsp_black)
3242                         dev_drv->ops->dsp_black(dev_drv, 0);
3243                 if ((dev_drv->ops->backlight_close) &&
3244                     (rk_fb->disp_policy != DISPLAY_POLICY_BOX) &&
3245                     (rk_fb->disp_mode == ONE_DUAL))
3246                         dev_drv->ops->backlight_close(dev_drv, 0);
3247         }
3248         return 0;
3249 }
3250
3251 /*
3252  * function:this function current only called by hdmi for
3253  *      scale the display
3254  * scale_x: scale rate of x resolution
3255  * scale_y: scale rate of y resolution
3256  * lcdc_id: the lcdc id the hdmi attached ,0 or 1
3257  */
3258 int rk_fb_disp_scale(u8 scale_x, u8 scale_y, u8 lcdc_id)
3259 {
3260         struct rk_fb *inf = platform_get_drvdata(fb_pdev);
3261         struct fb_info *info = NULL;
3262         struct fb_info *pmy_info = NULL;
3263         struct fb_var_screeninfo *var = NULL;
3264         struct rk_lcdc_driver *dev_drv = NULL;
3265         u16 screen_x, screen_y;
3266         u16 xpos, ypos;
3267         char name[6];
3268         struct rk_screen primary_screen;
3269         rk_fb_get_prmry_screen(&primary_screen);
3270         if (primary_screen.type == SCREEN_HDMI) {
3271                 return 0;
3272         }
3273
3274         sprintf(name, "lcdc%d", lcdc_id);
3275
3276         if (inf->disp_mode == DUAL) {
3277                 dev_drv = rk_get_lcdc_drv(name);
3278                 if (dev_drv == NULL) {
3279                         printk(KERN_ERR "%s driver not found!", name);
3280                         return -ENODEV;
3281                 }
3282         } else {
3283                 dev_drv = inf->lcdc_dev_drv[0];
3284         }
3285
3286         if (inf->num_lcdc == 1) {
3287                 info = inf->fb[0];
3288         } else if (inf->num_lcdc == 2) {
3289                 info = inf->fb[dev_drv->lcdc_win_num];
3290                 pmy_info = inf->fb[0];
3291         }
3292
3293         var = &info->var;
3294         screen_x = dev_drv->cur_screen->mode.xres;
3295         screen_y = dev_drv->cur_screen->mode.yres;
3296
3297         if (inf->disp_mode != DUAL && dev_drv->screen1) {
3298                 dev_drv->cur_screen->xpos =
3299                     (screen_x - screen_x * scale_x / 100) >> 1;
3300                 dev_drv->cur_screen->ypos =
3301                     (screen_y - screen_y * scale_y / 100) >> 1;
3302                 dev_drv->cur_screen->xsize = screen_x * scale_x / 100;
3303                 dev_drv->cur_screen->ysize = screen_y * scale_y / 100;
3304         } else {
3305                 xpos = (screen_x - screen_x * scale_x / 100) >> 1;
3306                 ypos = (screen_y - screen_y * scale_y / 100) >> 1;
3307                 dev_drv->cur_screen->xsize = screen_x * scale_x / 100;
3308                 dev_drv->cur_screen->ysize = screen_y * scale_y / 100;
3309                 if (inf->disp_mode == ONE_DUAL) {
3310                         var->nonstd &= 0xff;
3311                         var->nonstd |= (xpos << 8) + (ypos << 20);
3312                         var->grayscale &= 0xff;
3313                         var->grayscale |=
3314                                 (dev_drv->cur_screen->xsize << 8) +
3315                                 (dev_drv->cur_screen->ysize << 20);
3316                 }
3317         }
3318
3319         mutex_lock(&dev_drv->win_config);
3320         info->fbops->fb_set_par(info);
3321         dev_drv->ops->cfg_done(dev_drv);
3322         mutex_unlock(&dev_drv->win_config);
3323
3324         return 0;
3325 }
3326
3327 #if defined(CONFIG_ION_ROCKCHIP)
3328 static int rk_fb_alloc_buffer_by_ion(struct fb_info *fbi,
3329                                      struct rk_lcdc_win *win,
3330                                      unsigned long fb_mem_size)
3331 {
3332         struct rk_fb *rk_fb = platform_get_drvdata(fb_pdev);
3333         struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
3334         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
3335         struct ion_handle *handle;
3336         ion_phys_addr_t phy_addr;
3337         size_t len;
3338         int ret = 0;
3339
3340         if (dev_drv->iommu_enabled)
3341                 handle = ion_alloc(rk_fb->ion_client, (size_t) fb_mem_size, 0,
3342                                    ION_HEAP(ION_VMALLOC_HEAP_ID), 0);
3343         else
3344                 handle = ion_alloc(rk_fb->ion_client, (size_t) fb_mem_size, 0,
3345                                    ION_HEAP(ION_CMA_HEAP_ID), 0);
3346         if (IS_ERR(handle)) {
3347                 dev_err(fbi->device, "failed to ion_alloc:%ld\n",
3348                         PTR_ERR(handle));
3349                 return -ENOMEM;
3350         }
3351
3352         fb_par->ion_hdl = handle;
3353         win->area[0].dma_buf = ion_share_dma_buf(rk_fb->ion_client, handle);
3354         if (IS_ERR_OR_NULL(win->area[0].dma_buf)) {
3355                 printk("ion_share_dma_buf() failed\n");
3356                 goto err_share_dma_buf;
3357         }
3358         win->area[0].ion_hdl = handle;
3359         if (dev_drv->prop == PRMRY)
3360                 fbi->screen_base = ion_map_kernel(rk_fb->ion_client, handle);
3361 #ifdef CONFIG_ROCKCHIP_IOMMU
3362         if (dev_drv->iommu_enabled && dev_drv->mmu_dev)
3363                 ret = ion_map_iommu(dev_drv->dev, rk_fb->ion_client, handle,
3364                                         (unsigned long *)&phy_addr,
3365                                         (unsigned long *)&len);
3366         else
3367                 ret = ion_phys(rk_fb->ion_client, handle, &phy_addr, &len);
3368 #else
3369         ret = ion_phys(rk_fb->ion_client, handle, &phy_addr, &len);
3370 #endif
3371         if (ret < 0) {
3372                 dev_err(fbi->dev, "ion map to get phy addr failed\n");
3373                 goto err_share_dma_buf;
3374         }
3375         fbi->fix.smem_start = phy_addr;
3376         fbi->fix.smem_len = len;
3377         printk(KERN_INFO "alloc_buffer:ion_phy_addr=0x%lx\n", phy_addr);
3378         return 0;
3379
3380 err_share_dma_buf:
3381         ion_free(rk_fb->ion_client, handle);
3382         return -ENOMEM;
3383 }
3384 #endif
3385
3386 static int rk_fb_alloc_buffer(struct fb_info *fbi)
3387 {
3388         struct rk_fb *rk_fb = platform_get_drvdata(fb_pdev);
3389         struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
3390         struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
3391         struct rk_lcdc_win *win = NULL;
3392         int win_id;
3393         int ret = 0;
3394         unsigned long fb_mem_size;
3395 #if !defined(CONFIG_ION_ROCKCHIP)
3396         dma_addr_t fb_mem_phys;
3397         void *fb_mem_virt;
3398 #endif
3399
3400         win_id = dev_drv->ops->fb_get_win_id(dev_drv, fbi->fix.id);
3401         if (win_id < 0)
3402                 return -ENODEV;
3403         else
3404                 win = dev_drv->win[win_id];
3405
3406         if (!strcmp(fbi->fix.id, "fb0")) {
3407                 fb_mem_size = get_fb_size();
3408 #if defined(CONFIG_ION_ROCKCHIP)
3409                 if (rk_fb_alloc_buffer_by_ion(fbi, win, fb_mem_size) < 0)
3410                         return -ENOMEM;
3411 #else
3412                 fb_mem_virt = dma_alloc_writecombine(fbi->dev, fb_mem_size,
3413                                                      &fb_mem_phys, GFP_KERNEL);
3414                 if (!fb_mem_virt) {
3415                         pr_err("%s: Failed to allocate framebuffer\n",
3416                                __func__);
3417                         return -ENOMEM;
3418                 }
3419                 fbi->fix.smem_len = fb_mem_size;
3420                 fbi->fix.smem_start = fb_mem_phys;
3421                 fbi->screen_base = fb_mem_virt;
3422 #endif
3423                 memset(fbi->screen_base, 0, fbi->fix.smem_len);
3424         } else {
3425                 fbi->fix.smem_start = rk_fb->fb[0]->fix.smem_start;
3426                 fbi->fix.smem_len = rk_fb->fb[0]->fix.smem_len;
3427                 fbi->screen_base = rk_fb->fb[0]->screen_base;
3428         }
3429
3430         fbi->screen_size = fbi->fix.smem_len;
3431         fb_par->fb_phy_base = fbi->fix.smem_start;
3432         fb_par->fb_virt_base = fbi->screen_base;
3433         fb_par->fb_size = fbi->fix.smem_len;
3434
3435         pr_info("%s:phy:%lx>>vir:%p>>len:0x%x\n", fbi->fix.id,
3436                        fbi->fix.smem_start, fbi->screen_base,
3437                        fbi->fix.smem_len);
3438         return ret;
3439 }
3440
3441 #if 0
3442 static int rk_release_fb_buffer(struct fb_info *fbi)
3443 {
3444         /* buffer for fb1 and fb3 are alloc by android */
3445         if (!strcmp(fbi->fix.id, "fb1") || !strcmp(fbi->fix.id, "fb3"))
3446                 return 0;
3447         iounmap(fbi->screen_base);
3448         release_mem_region(fbi->fix.smem_start, fbi->fix.smem_len);
3449         return 0;
3450 }
3451 #endif
3452
3453 static int init_lcdc_win(struct rk_lcdc_driver *dev_drv,
3454                          struct rk_lcdc_win *def_win)
3455 {
3456         int i;
3457         int lcdc_win_num = dev_drv->lcdc_win_num;
3458
3459         for (i = 0; i < lcdc_win_num; i++) {
3460                 struct rk_lcdc_win *win = NULL;
3461                 win = kzalloc(sizeof(struct rk_lcdc_win), GFP_KERNEL);
3462                 if (!win) {
3463                         dev_err(dev_drv->dev, "kzmalloc for win fail!");
3464                         return -ENOMEM;
3465                 }
3466
3467                 strcpy(win->name, def_win[i].name);
3468                 win->id = def_win[i].id;
3469                 win->support_3d = def_win[i].support_3d;
3470                 dev_drv->win[i] = win;
3471         }
3472
3473         return 0;
3474 }
3475
3476 static int init_lcdc_device_driver(struct rk_fb *rk_fb,
3477                                    struct rk_lcdc_win *def_win, int index)
3478 {
3479         struct rk_lcdc_driver *dev_drv = rk_fb->lcdc_dev_drv[index];
3480         struct rk_screen *screen = devm_kzalloc(dev_drv->dev,
3481                                                 sizeof(struct rk_screen),
3482                                                 GFP_KERNEL);
3483
3484         if (!screen) {
3485                 dev_err(dev_drv->dev, "malloc screen for lcdc%d fail!",
3486                         dev_drv->id);
3487                 return -ENOMEM;
3488         }
3489
3490         screen->screen_id = 0;
3491         screen->lcdc_id = dev_drv->id;
3492         screen->overscan.left = 100;
3493         screen->overscan.top = 100;
3494         screen->overscan.right = 100;
3495         screen->overscan.bottom = 100;
3496
3497         screen->x_mirror = dev_drv->rotate_mode & X_MIRROR;
3498         screen->y_mirror = dev_drv->rotate_mode & Y_MIRROR;
3499
3500         dev_drv->screen0 = screen;
3501         dev_drv->cur_screen = screen;
3502         /* devie use one lcdc + rk61x scaler for dual display */
3503         if ((rk_fb->disp_mode == ONE_DUAL) || (rk_fb->disp_mode == NO_DUAL)) {
3504                 struct rk_screen *screen1 =
3505                                 devm_kzalloc(dev_drv->dev,
3506                                              sizeof(struct rk_screen),
3507                                              GFP_KERNEL);
3508                 if (!screen1) {
3509                         dev_err(dev_drv->dev, "malloc screen1 for lcdc%d fail!",
3510                                 dev_drv->id);
3511                         return -ENOMEM;
3512                 }
3513                 screen1->screen_id = 1;
3514                 screen1->lcdc_id = 1;
3515                 dev_drv->screen1 = screen1;
3516         }
3517         sprintf(dev_drv->name, "lcdc%d", dev_drv->id);
3518         init_lcdc_win(dev_drv, def_win);
3519         init_completion(&dev_drv->frame_done);
3520         spin_lock_init(&dev_drv->cpl_lock);
3521         mutex_init(&dev_drv->fb_win_id_mutex);
3522         mutex_init(&dev_drv->win_config);
3523         mutex_init(&dev_drv->front_lock);
3524         dev_drv->ops->fb_win_remap(dev_drv, dev_drv->fb_win_map);
3525         dev_drv->first_frame = 1;
3526         dev_drv->overscan.left = 100;
3527         dev_drv->overscan.top = 100;
3528         dev_drv->overscan.right = 100;
3529         dev_drv->overscan.bottom = 100;
3530         rk_disp_pwr_ctr_parse_dt(dev_drv);
3531         if (dev_drv->prop == PRMRY) {
3532                 if (dev_drv->ops->set_dsp_cabc)
3533                         dev_drv->ops->set_dsp_cabc(dev_drv, dev_drv->cabc_mode);
3534                 rk_fb_set_prmry_screen(screen);
3535                 rk_fb_get_prmry_screen(screen);
3536         }
3537         dev_drv->trsm_ops = rk_fb_trsm_ops_get(screen->type);
3538         if (dev_drv->prop != PRMRY)
3539                 rk_fb_get_prmry_screen(screen);
3540         dev_drv->output_color = screen->color_mode;
3541
3542         return 0;
3543 }
3544
3545 #ifdef CONFIG_LOGO_LINUX_BMP
3546 static struct linux_logo *bmp_logo;
3547 static int fb_prewine_bmp_logo(struct fb_info *info, int rotate)
3548 {
3549         bmp_logo = fb_find_logo(24);
3550         if (bmp_logo == NULL) {
3551                 printk(KERN_INFO "%s error\n", __func__);
3552                 return 0;
3553         }
3554         return 1;
3555 }
3556
3557 static void fb_show_bmp_logo(struct fb_info *info, int rotate)
3558 {
3559         unsigned char *src = bmp_logo->data;
3560         unsigned char *dst = info->screen_base;
3561         int i;
3562         unsigned int Needwidth = (*(src - 24) << 8) | (*(src - 23));
3563         unsigned int Needheight = (*(src - 22) << 8) | (*(src - 21));
3564
3565         for (i = 0; i < Needheight; i++)
3566                 memcpy(dst + info->var.xres * i * 4,
3567                        src + bmp_logo->width * i * 4, Needwidth * 4);
3568 }
3569 #endif
3570
3571 /*
3572  * check if the primary lcdc has registerd,
3573  * the primary lcdc mas register first
3574  */
3575 bool is_prmry_rk_lcdc_registered(void)
3576 {
3577         struct rk_fb *rk_fb = platform_get_drvdata(fb_pdev);
3578
3579         if (rk_fb->lcdc_dev_drv[0])
3580                 return true;
3581         else
3582                 return false;
3583 }
3584
3585 int rk_fb_register(struct rk_lcdc_driver *dev_drv,
3586                    struct rk_lcdc_win *win, int id)
3587 {
3588         struct rk_fb *rk_fb = platform_get_drvdata(fb_pdev);
3589         struct fb_info *fbi;
3590         struct rk_fb_par *fb_par = NULL;
3591         int i = 0, ret = 0, index = 0;
3592
3593         if (rk_fb->num_lcdc == RK30_MAX_LCDC_SUPPORT)
3594                 return -ENXIO;
3595
3596         for (i = 0; i < RK30_MAX_LCDC_SUPPORT; i++) {
3597                 if (!rk_fb->lcdc_dev_drv[i]) {
3598                         rk_fb->lcdc_dev_drv[i] = dev_drv;
3599                         rk_fb->lcdc_dev_drv[i]->id = id;
3600                         rk_fb->num_lcdc++;
3601                         break;
3602                 }
3603         }
3604
3605         index = i;
3606         init_lcdc_device_driver(rk_fb, win, index);
3607         dev_drv->fb_index_base = rk_fb->num_fb;
3608         for (i = 0; i < dev_drv->lcdc_win_num; i++) {
3609                 fbi = framebuffer_alloc(0, &fb_pdev->dev);
3610                 if (!fbi) {
3611                         dev_err(&fb_pdev->dev, "fb framebuffer_alloc fail!");
3612                         ret = -ENOMEM;
3613                 }
3614                 fb_par = devm_kzalloc(&fb_pdev->dev, sizeof(struct rk_fb_par),
3615                                       GFP_KERNEL);
3616                 if (!fb_par) {
3617                         dev_err(&fb_pdev->dev, "malloc fb_par for fb%d fail!",
3618                                 rk_fb->num_fb);
3619                         return -ENOMEM;
3620                 }
3621                 fb_par->id = rk_fb->num_fb;
3622                 fb_par->lcdc_drv = dev_drv;
3623                 fbi->par = (void *)fb_par;
3624                 fbi->var = def_var;
3625                 fbi->fix = def_fix;
3626                 sprintf(fbi->fix.id, "fb%d", rk_fb->num_fb);
3627                 fb_videomode_to_var(&fbi->var, &dev_drv->cur_screen->mode);
3628                 fbi->var.grayscale |=
3629                     (fbi->var.xres << 8) + (fbi->var.yres << 20);
3630 #if defined(CONFIG_LOGO_LINUX_BMP)
3631                 fbi->var.bits_per_pixel = 32;
3632 #else
3633                 fbi->var.bits_per_pixel = 16;
3634 #endif
3635                 fbi->fix.line_length =
3636                     (fbi->var.xres_virtual) * (fbi->var.bits_per_pixel >> 3);
3637                 fbi->var.width = dev_drv->cur_screen->width;
3638                 fbi->var.height = dev_drv->cur_screen->height;
3639                 fbi->var.pixclock = dev_drv->pixclock;
3640                 if (dev_drv->iommu_enabled)
3641                         fb_ops.fb_mmap = rk_fb_mmap;
3642                 fbi->fbops = &fb_ops;
3643                 fbi->flags = FBINFO_FLAG_DEFAULT;
3644                 fbi->pseudo_palette = dev_drv->win[i]->pseudo_pal;
3645                 ret = register_framebuffer(fbi);
3646                 if (ret < 0) {
3647                         dev_err(&fb_pdev->dev,
3648                                 "%s fb%d register_framebuffer fail!\n",
3649                                 __func__, rk_fb->num_fb);
3650                         return ret;
3651                 }
3652                 rkfb_create_sysfs(fbi);
3653                 rk_fb->fb[rk_fb->num_fb] = fbi;
3654                 dev_info(fbi->dev, "rockchip framebuffer registerd:%s\n",
3655                          fbi->fix.id);
3656                 rk_fb->num_fb++;
3657
3658                 if (i == 0) {
3659                         init_waitqueue_head(&dev_drv->vsync_info.wait);
3660                         init_waitqueue_head(&dev_drv->update_regs_wait);
3661                         ret = device_create_file(fbi->dev, &dev_attr_vsync);
3662                         if (ret)
3663                                 dev_err(fbi->dev,
3664                                         "failed to create vsync file\n");
3665                         dev_drv->vsync_info.thread =
3666                             kthread_run(rk_fb_wait_for_vsync_thread, dev_drv,
3667                                         "fb-vsync");
3668                         if (dev_drv->vsync_info.thread == ERR_PTR(-ENOMEM)) {
3669                                 dev_err(fbi->dev,
3670                                         "failed to run vsync thread\n");
3671                                 dev_drv->vsync_info.thread = NULL;
3672                         }
3673                         dev_drv->vsync_info.active = 1;
3674
3675                         mutex_init(&dev_drv->output_lock);
3676
3677                         INIT_LIST_HEAD(&dev_drv->update_regs_list);
3678                         mutex_init(&dev_drv->update_regs_list_lock);
3679                         init_kthread_worker(&dev_drv->update_regs_worker);
3680
3681                         dev_drv->update_regs_thread =
3682                             kthread_run(kthread_worker_fn,
3683                                         &dev_drv->update_regs_worker, "rk-fb");
3684                         if (IS_ERR(dev_drv->update_regs_thread)) {
3685                                 int err = PTR_ERR(dev_drv->update_regs_thread);
3686                                 dev_drv->update_regs_thread = NULL;
3687
3688                                 printk("failed to run update_regs thread\n");
3689                                 return err;
3690                         }
3691                         init_kthread_work(&dev_drv->update_regs_work,
3692                                           rk_fb_update_regs_handler);
3693
3694                         dev_drv->timeline =
3695                             sw_sync_timeline_create("fb-timeline");
3696                         dev_drv->timeline_max = 1;
3697                 }
3698         }
3699
3700         /* show logo for primary display device */
3701 #if !defined(CONFIG_FRAMEBUFFER_CONSOLE)
3702         if (dev_drv->prop == PRMRY) {
3703                 u16 xact, yact;
3704                 int format;
3705                 u32 dsp_addr;
3706                 struct fb_info *main_fbi = rk_fb->fb[0];
3707                 main_fbi->fbops->fb_open(main_fbi, 1);
3708
3709 #if defined(CONFIG_ROCKCHIP_IOMMU)
3710                 if (dev_drv->iommu_enabled) {
3711                         if (dev_drv->mmu_dev)
3712                                 rockchip_iovmm_set_fault_handler(dev_drv->dev,
3713                                                 rk_fb_sysmmu_fault_handler);
3714                 }
3715 #endif
3716
3717                 rk_fb_alloc_buffer(main_fbi);   /* only alloc memory for main fb */
3718                 dev_drv->uboot_logo = support_uboot_display();
3719
3720                 if (dev_drv->uboot_logo &&
3721                     uboot_logo_offset && uboot_logo_base) {
3722                         int width, height, bits;
3723                         phys_addr_t start = uboot_logo_base + uboot_logo_offset;
3724                         unsigned int size = uboot_logo_size - uboot_logo_offset;
3725                         unsigned int nr_pages;
3726                         struct page **pages;
3727                         char *vaddr;
3728                         int i = 0;
3729
3730                         if (dev_drv->ops->get_dspbuf_info)
3731                                 dev_drv->ops->get_dspbuf_info(dev_drv, &xact,
3732                                         &yact, &format, &dsp_addr);
3733                         nr_pages = size >> PAGE_SHIFT;
3734                         pages = kzalloc(sizeof(struct page) * nr_pages,
3735                                         GFP_KERNEL);
3736                         while (i < nr_pages) {
3737                                 pages[i] = phys_to_page(start);
3738                                 start += PAGE_SIZE;
3739                                 i++;
3740                         }
3741                         vaddr = vmap(pages, nr_pages, VM_MAP,
3742                                         pgprot_writecombine(PAGE_KERNEL));
3743                         if (!vaddr) {
3744                                 pr_err("failed to vmap phy addr 0x%lx\n",
3745                                        (long)(uboot_logo_base +
3746                                        uboot_logo_offset));
3747                                 return -1;
3748                         }
3749
3750                         if(bmpdecoder(vaddr, main_fbi->screen_base, &width,
3751                                       &height, &bits)) {
3752                                 kfree(pages);
3753                                 vunmap(vaddr);
3754                                 return 0;
3755                         }
3756                         kfree(pages);
3757                         vunmap(vaddr);
3758                         if (dev_drv->uboot_logo &&
3759                             (width != xact || height != yact)) {
3760                                 pr_err("can't support uboot kernel logo use different size [%dx%d] != [%dx%d]\n",
3761                                         xact, yact, width, height);
3762                                 return 0;
3763                         }
3764
3765                         if (dev_drv->ops->post_dspbuf) {
3766                                 dev_drv->ops->post_dspbuf(dev_drv,
3767                                         main_fbi->fix.smem_start,
3768                                         rk_fb_data_fmt(0, bits),
3769                                         width, height, width * bits >> 5);
3770                         }
3771                         if (dev_drv->iommu_enabled) {
3772                                 rk_fb_poll_wait_frame_complete();
3773                                 if (dev_drv->ops->mmu_en)
3774                                         dev_drv->ops->mmu_en(dev_drv);
3775                                 freed_index = 0;
3776                         }
3777
3778                         return 0;
3779                 } else if (dev_drv->uboot_logo && uboot_logo_base) {
3780                         u32 start = uboot_logo_base;
3781                         int logo_len, i=0;
3782                         unsigned int nr_pages;
3783                         struct page **pages;
3784                         char *vaddr;
3785
3786                         dev_drv->ops->get_dspbuf_info(dev_drv, &xact,
3787                                                       &yact, &format,
3788                                                       &start);
3789                         logo_len = rk_fb_pixel_width(format) * xact * yact >> 3;
3790                         if (logo_len > uboot_logo_size ||
3791                             logo_len > main_fbi->fix.smem_len) {
3792                                 pr_err("logo size > uboot reserve buffer size\n");
3793                                 return -1;
3794                         }
3795
3796                         nr_pages = uboot_logo_size >> PAGE_SHIFT;
3797                         pages = kzalloc(sizeof(struct page) * nr_pages,
3798                                         GFP_KERNEL);
3799                         while (i < nr_pages) {
3800                                 pages[i] = phys_to_page(start);
3801                                 start += PAGE_SIZE;
3802                                 i++;
3803                         }
3804                         vaddr = vmap(pages, nr_pages, VM_MAP,
3805                                         pgprot_writecombine(PAGE_KERNEL));
3806                         if (!vaddr) {
3807                                 pr_err("failed to vmap phy addr 0x%llx\n",
3808                                        uboot_logo_base);
3809                                 return -1;
3810                         }
3811
3812                         memcpy(main_fbi->screen_base, vaddr, logo_len);
3813
3814                         kfree(pages);
3815                         vunmap(vaddr);
3816
3817                         dev_drv->ops->post_dspbuf(dev_drv,
3818                                         main_fbi->fix.smem_start,
3819                                         format, xact, yact,
3820                                         xact * rk_fb_pixel_width(format) >> 5);
3821                         if (dev_drv->iommu_enabled) {
3822                                 rk_fb_poll_wait_frame_complete();
3823                                 if (dev_drv->ops->mmu_en)
3824                                         dev_drv->ops->mmu_en(dev_drv);
3825                                 freed_index = 0;
3826                         }
3827                         return 0;
3828                 } else {
3829                         if (dev_drv->iommu_enabled) {
3830                                 if (dev_drv->ops->mmu_en)
3831                                         dev_drv->ops->mmu_en(dev_drv);
3832                                 freed_index = 0;
3833                         }
3834                 }
3835 #if defined(CONFIG_LOGO)
3836                 main_fbi->fbops->fb_set_par(main_fbi);
3837 #if  defined(CONFIG_LOGO_LINUX_BMP)
3838                 if (fb_prewine_bmp_logo(main_fbi, FB_ROTATE_UR)) {
3839                         fb_set_cmap(&main_fbi->cmap, main_fbi);
3840                         fb_show_bmp_logo(main_fbi, FB_ROTATE_UR);
3841                 }
3842 #else
3843                 if (fb_prepare_logo(main_fbi, FB_ROTATE_UR)) {
3844                         fb_set_cmap(&main_fbi->cmap, main_fbi);
3845                         fb_show_logo(main_fbi, FB_ROTATE_UR);
3846                 }
3847 #endif
3848                 main_fbi->fbops->fb_pan_display(&main_fbi->var, main_fbi);
3849 #endif
3850         } else {
3851                 struct fb_info *extend_fbi = rk_fb->fb[rk_fb->num_fb >> 1];
3852
3853                 rk_fb_alloc_buffer(extend_fbi);
3854         }
3855 #endif
3856         return 0;
3857 }
3858
3859 int rk_fb_unregister(struct rk_lcdc_driver *dev_drv)
3860 {
3861         struct rk_fb *fb_inf = platform_get_drvdata(fb_pdev);
3862         struct fb_info *fbi;
3863         int fb_index_base = dev_drv->fb_index_base;
3864         int fb_num = dev_drv->lcdc_win_num;
3865         int i = 0;
3866
3867         if (fb_inf->lcdc_dev_drv[i]->vsync_info.thread) {
3868                 fb_inf->lcdc_dev_drv[i]->vsync_info.irq_stop = 1;
3869                 kthread_stop(fb_inf->lcdc_dev_drv[i]->vsync_info.thread);
3870         }
3871
3872         for (i = 0; i < fb_num; i++)
3873                 kfree(dev_drv->win[i]);
3874
3875         for (i = fb_index_base; i < (fb_index_base + fb_num); i++) {
3876                 fbi = fb_inf->fb[i];
3877                 unregister_framebuffer(fbi);
3878                 /* rk_release_fb_buffer(fbi); */
3879                 framebuffer_release(fbi);
3880         }
3881         fb_inf->lcdc_dev_drv[dev_drv->id] = NULL;
3882         fb_inf->num_lcdc--;
3883
3884         return 0;
3885 }
3886
3887 static int rk_fb_probe(struct platform_device *pdev)
3888 {
3889         struct rk_fb *rk_fb = NULL;
3890         struct device_node *np = pdev->dev.of_node;
3891         u32 mode;
3892
3893         if (!np) {
3894                 dev_err(&pdev->dev, "Missing device tree node.\n");
3895                 return -EINVAL;
3896         }
3897
3898         rk_fb = devm_kzalloc(&pdev->dev, sizeof(struct rk_fb), GFP_KERNEL);
3899         if (!rk_fb) {
3900                 dev_err(&pdev->dev, "kmalloc for rk fb fail!");
3901                 return -ENOMEM;
3902         }
3903         platform_set_drvdata(pdev, rk_fb);
3904
3905         if (!of_property_read_u32(np, "rockchip,disp-mode", &mode)) {
3906                 rk_fb->disp_mode = mode;
3907
3908         } else {
3909                 dev_err(&pdev->dev, "no disp-mode node found!");
3910                 return -ENODEV;
3911         }
3912
3913         if (!of_property_read_u32(np, "rockchip,disp-policy", &mode)) {
3914                 rk_fb->disp_policy = mode;
3915                 pr_info("fb disp policy is %s\n", rk_fb->disp_policy ? "box":"sdk");
3916         }
3917
3918         if (!of_property_read_u32(np, "rockchip,uboot-logo-on", &uboot_logo_on))
3919                 printk(KERN_DEBUG "uboot-logo-on:%d\n", uboot_logo_on);
3920
3921         dev_set_name(&pdev->dev, "rockchip-fb");
3922 #if defined(CONFIG_ION_ROCKCHIP)
3923         rk_fb->ion_client = rockchip_ion_client_create("rk_fb");
3924         if (IS_ERR(rk_fb->ion_client)) {
3925                 dev_err(&pdev->dev, "failed to create ion client for rk fb");
3926                 return PTR_ERR(rk_fb->ion_client);
3927         } else {
3928                 dev_info(&pdev->dev, "rk fb ion client create success!\n");
3929         }
3930 #endif
3931
3932         fb_pdev = pdev;
3933         dev_info(&pdev->dev, "rockchip framebuffer driver probe\n");
3934         return 0;
3935 }
3936
3937 static int rk_fb_remove(struct platform_device *pdev)
3938 {
3939         struct rk_fb *rk_fb = platform_get_drvdata(pdev);
3940
3941         kfree(rk_fb);
3942         platform_set_drvdata(pdev, NULL);
3943         return 0;
3944 }
3945
3946 static void rk_fb_shutdown(struct platform_device *pdev)
3947 {
3948         struct rk_fb *rk_fb = platform_get_drvdata(pdev);
3949         int i;
3950
3951         for (i = 0; i < rk_fb->num_lcdc; i++) {
3952                 if (!rk_fb->lcdc_dev_drv[i])
3953                         continue;
3954         }
3955 }
3956
3957 static const struct of_device_id rkfb_dt_ids[] = {
3958         {.compatible = "rockchip,rk-fb",},
3959         {}
3960 };
3961
3962 static struct platform_driver rk_fb_driver = {
3963         .probe = rk_fb_probe,
3964         .remove = rk_fb_remove,
3965         .driver = {
3966                    .name = "rk-fb",
3967                    .owner = THIS_MODULE,
3968                    .of_match_table = of_match_ptr(rkfb_dt_ids),
3969                    },
3970         .shutdown = rk_fb_shutdown,
3971 };
3972
3973 static int __init rk_fb_init(void)
3974 {
3975         return platform_driver_register(&rk_fb_driver);
3976 }
3977
3978 static void __exit rk_fb_exit(void)
3979 {
3980         platform_driver_unregister(&rk_fb_driver);
3981 }
3982
3983 fs_initcall(rk_fb_init);
3984 module_exit(rk_fb_exit);