drivers/gpu/drm/exynos/exynos_drm_fimc.c

   1 /*
   2  * Copyright (C) 2012 Samsung Electronics Co.Ltd
   3  * Authors:
   4  *      Eunchul Kim <chulspro.kim@samsung.com>
   5  *      Jinyoung Jeon <jy0.jeon@samsung.com>
   6  *      Sangmin Lee <lsmin.lee@samsung.com>
   7  *
   8  * This program is free software; you can redistribute  it and/or modify it
   9  * under  the terms of  the GNU General  Public License as published by the
  10  * Free Software Foundation;  either version 2 of the  License, or (at your
  11  * option) any later version.
  12  *
  13  */
  14 #include <linux/kernel.h>
  15 #include <linux/platform_device.h>
  16 #include <linux/mfd/syscon.h>
  17 #include <linux/regmap.h>
  18 #include <linux/clk.h>
  19 #include <linux/pm_runtime.h>
  20 #include <linux/of.h>
  21
  22 #include <drm/drmP.h>
  23 #include <drm/exynos_drm.h>
  24 #include "regs-fimc.h"
  25 #include "exynos_drm_drv.h"
  26 #include "exynos_drm_ipp.h"
  27 #include "exynos_drm_fimc.h"
  28
  29 /*
  30  * FIMC stands for Fully Interactive Mobile Camera and
  31  * supports image scaler/rotator and input/output DMA operations.
  32  * input DMA reads image data from the memory.
  33  * output DMA writes image data to memory.
  34  * FIMC supports image rotation and image effect functions.
  35  *
  36  * M2M operation : supports crop/scale/rotation/csc so on.
  37  * Memory ----> FIMC H/W ----> Memory.
  38  * Writeback operation : supports cloned screen with FIMD.
  39  * FIMD ----> FIMC H/W ----> Memory.
  40  * Output operation : supports direct display using local path.
  41  * Memory ----> FIMC H/W ----> FIMD.
  42  */
  43
  44 /*
  45  * TODO
  46  * 1. check suspend/resume api if needed.
  47  * 2. need to check use case platform_device_id.
  48  * 3. check src/dst size with, height.
  49  * 4. added check_prepare api for right register.
  50  * 5. need to add supported list in prop_list.
  51  * 6. check prescaler/scaler optimization.
  52  */
  53
  54 #define FIMC_MAX_DEVS   4
  55 #define FIMC_MAX_SRC    2
  56 #define FIMC_MAX_DST    32
  57 #define FIMC_SHFACTOR   10
  58 #define FIMC_BUF_STOP   1
  59 #define FIMC_BUF_START  2
  60 #define FIMC_REG_SZ             32
  61 #define FIMC_WIDTH_ITU_709      1280
  62 #define FIMC_REFRESH_MAX        60
  63 #define FIMC_REFRESH_MIN        12
  64 #define FIMC_CROP_MAX   8192
  65 #define FIMC_CROP_MIN   32
  66 #define FIMC_SCALE_MAX  4224
  67 #define FIMC_SCALE_MIN  32
  68
  69 #define get_fimc_context(dev)   platform_get_drvdata(to_platform_device(dev))
  70 #define get_ctx_from_ippdrv(ippdrv)     container_of(ippdrv,\
  71                                         struct fimc_context, ippdrv);
  72 #define fimc_read(offset)               readl(ctx->regs + (offset))
  73 #define fimc_write(cfg, offset) writel(cfg, ctx->regs + (offset))
  74
  75 enum fimc_wb {
  76         FIMC_WB_NONE,
  77         FIMC_WB_A,
  78         FIMC_WB_B,
  79 };
  80
  81 enum {
  82         FIMC_CLK_LCLK,
  83         FIMC_CLK_GATE,
  84         FIMC_CLK_WB_A,
  85         FIMC_CLK_WB_B,
  86         FIMC_CLK_MUX,
  87         FIMC_CLK_PARENT,
  88         FIMC_CLKS_MAX
  89 };
  90
  91 static const char * const fimc_clock_names[] = {
  92         [FIMC_CLK_LCLK]   = "sclk_fimc",
  93         [FIMC_CLK_GATE]   = "fimc",
  94         [FIMC_CLK_WB_A]   = "pxl_async0",
  95         [FIMC_CLK_WB_B]   = "pxl_async1",
  96         [FIMC_CLK_MUX]    = "mux",
  97         [FIMC_CLK_PARENT] = "parent",
  98 };
  99
 100 #define FIMC_DEFAULT_LCLK_FREQUENCY 133000000UL
 101
 102 /*
 103  * A structure of scaler.
 104  *
 105  * @range: narrow, wide.
 106  * @bypass: unused scaler path.
 107  * @up_h: horizontal scale up.
 108  * @up_v: vertical scale up.
 109  * @hratio: horizontal ratio.
 110  * @vratio: vertical ratio.
 111  */
 112 struct fimc_scaler {
 113         bool    range;
 114         bool bypass;
 115         bool up_h;
 116         bool up_v;
 117         u32 hratio;
 118         u32 vratio;
 119 };
 120
 121 /*
 122  * A structure of scaler capability.
 123  *
 124  * find user manual table 43-1.
 125  * @in_hori: scaler input horizontal size.
 126  * @bypass: scaler bypass mode.
 127  * @dst_h_wo_rot: target horizontal size without output rotation.
 128  * @dst_h_rot: target horizontal size with output rotation.
 129  * @rl_w_wo_rot: real width without input rotation.
 130  * @rl_h_rot: real height without output rotation.
 131  */
 132 struct fimc_capability {
 133         /* scaler */
 134         u32     in_hori;
 135         u32     bypass;
 136         /* output rotator */
 137         u32     dst_h_wo_rot;
 138         u32     dst_h_rot;
 139         /* input rotator */
 140         u32     rl_w_wo_rot;
 141         u32     rl_h_rot;
 142 };
 143
 144 /*
 145  * A structure of fimc context.
 146  *
 147  * @ippdrv: prepare initialization using ippdrv.
 148  * @regs_res: register resources.
 149  * @regs: memory mapped io registers.
 150  * @lock: locking of operations.
 151  * @clocks: fimc clocks.
 152  * @clk_frequency: LCLK clock frequency.
 153  * @sysreg: handle to SYSREG block regmap.
 154  * @sc: scaler infomations.
 155  * @pol: porarity of writeback.
 156  * @id: fimc id.
 157  * @irq: irq number.
 158  * @suspended: qos operations.
 159  */
 160 struct fimc_context {
 161         struct exynos_drm_ippdrv        ippdrv;
 162         struct resource *regs_res;
 163         void __iomem    *regs;
 164         struct mutex    lock;
 165         struct clk      *clocks[FIMC_CLKS_MAX];
 166         u32             clk_frequency;
 167         struct regmap   *sysreg;
 168         struct fimc_scaler      sc;
 169         struct exynos_drm_ipp_pol       pol;
 170         int     id;
 171         int     irq;
 172         bool    suspended;
 173 };
 174
 175 static void fimc_sw_reset(struct fimc_context *ctx)
 176 {
 177         u32 cfg;
 178
 179         /* stop dma operation */
 180         cfg = fimc_read(EXYNOS_CISTATUS);
 181         if (EXYNOS_CISTATUS_GET_ENVID_STATUS(cfg)) {
 182                 cfg = fimc_read(EXYNOS_MSCTRL);
 183                 cfg &= ~EXYNOS_MSCTRL_ENVID;
 184                 fimc_write(cfg, EXYNOS_MSCTRL);
 185         }
 186
 187         cfg = fimc_read(EXYNOS_CISRCFMT);
 188         cfg |= EXYNOS_CISRCFMT_ITU601_8BIT;
 189         fimc_write(cfg, EXYNOS_CISRCFMT);
 190
 191         /* disable image capture */
 192         cfg = fimc_read(EXYNOS_CIIMGCPT);
 193         cfg &= ~(EXYNOS_CIIMGCPT_IMGCPTEN_SC | EXYNOS_CIIMGCPT_IMGCPTEN);
 194         fimc_write(cfg, EXYNOS_CIIMGCPT);
 195
 196         /* s/w reset */
 197         cfg = fimc_read(EXYNOS_CIGCTRL);
 198         cfg |= (EXYNOS_CIGCTRL_SWRST);
 199         fimc_write(cfg, EXYNOS_CIGCTRL);
 200
 201         /* s/w reset complete */
 202         cfg = fimc_read(EXYNOS_CIGCTRL);
 203         cfg &= ~EXYNOS_CIGCTRL_SWRST;
 204         fimc_write(cfg, EXYNOS_CIGCTRL);
 205
 206         /* reset sequence */
 207         fimc_write(0x0, EXYNOS_CIFCNTSEQ);
 208 }
 209
 210 static int fimc_set_camblk_fimd0_wb(struct fimc_context *ctx)
 211 {
 212         return regmap_update_bits(ctx->sysreg, SYSREG_CAMERA_BLK,
 213                                   SYSREG_FIMD0WB_DEST_MASK,
 214                                   ctx->id << SYSREG_FIMD0WB_DEST_SHIFT);
 215 }
 216
 217 static void fimc_set_type_ctrl(struct fimc_context *ctx, enum fimc_wb wb)
 218 {
 219         u32 cfg;
 220
 221         DRM_DEBUG_KMS("wb[%d]\n", wb);
 222
 223         cfg = fimc_read(EXYNOS_CIGCTRL);
 224         cfg &= ~(EXYNOS_CIGCTRL_TESTPATTERN_MASK |
 225                 EXYNOS_CIGCTRL_SELCAM_ITU_MASK |
 226                 EXYNOS_CIGCTRL_SELCAM_MIPI_MASK |
 227                 EXYNOS_CIGCTRL_SELCAM_FIMC_MASK |
 228                 EXYNOS_CIGCTRL_SELWB_CAMIF_MASK |
 229                 EXYNOS_CIGCTRL_SELWRITEBACK_MASK);
 230
 231         switch (wb) {
 232         case FIMC_WB_A:
 233                 cfg |= (EXYNOS_CIGCTRL_SELWRITEBACK_A |
 234                         EXYNOS_CIGCTRL_SELWB_CAMIF_WRITEBACK);
 235                 break;
 236         case FIMC_WB_B:
 237                 cfg |= (EXYNOS_CIGCTRL_SELWRITEBACK_B |
 238                         EXYNOS_CIGCTRL_SELWB_CAMIF_WRITEBACK);
 239                 break;
 240         case FIMC_WB_NONE:
 241         default:
 242                 cfg |= (EXYNOS_CIGCTRL_SELCAM_ITU_A |
 243                         EXYNOS_CIGCTRL_SELWRITEBACK_A |
 244                         EXYNOS_CIGCTRL_SELCAM_MIPI_A |
 245                         EXYNOS_CIGCTRL_SELCAM_FIMC_ITU);
 246                 break;
 247         }
 248
 249         fimc_write(cfg, EXYNOS_CIGCTRL);
 250 }
 251
 252 static void fimc_set_polarity(struct fimc_context *ctx,
 253                 struct exynos_drm_ipp_pol *pol)
 254 {
 255         u32 cfg;
 256
 257         DRM_DEBUG_KMS("inv_pclk[%d]inv_vsync[%d]\n",
 258                 pol->inv_pclk, pol->inv_vsync);
 259         DRM_DEBUG_KMS("inv_href[%d]inv_hsync[%d]\n",
 260                 pol->inv_href, pol->inv_hsync);
 261
 262         cfg = fimc_read(EXYNOS_CIGCTRL);
 263         cfg &= ~(EXYNOS_CIGCTRL_INVPOLPCLK | EXYNOS_CIGCTRL_INVPOLVSYNC |
 264                  EXYNOS_CIGCTRL_INVPOLHREF | EXYNOS_CIGCTRL_INVPOLHSYNC);
 265
 266         if (pol->inv_pclk)
 267                 cfg |= EXYNOS_CIGCTRL_INVPOLPCLK;
 268         if (pol->inv_vsync)
 269                 cfg |= EXYNOS_CIGCTRL_INVPOLVSYNC;
 270         if (pol->inv_href)
 271                 cfg |= EXYNOS_CIGCTRL_INVPOLHREF;
 272         if (pol->inv_hsync)
 273                 cfg |= EXYNOS_CIGCTRL_INVPOLHSYNC;
 274
 275         fimc_write(cfg, EXYNOS_CIGCTRL);
 276 }
 277
 278 static void fimc_handle_jpeg(struct fimc_context *ctx, bool enable)
 279 {
 280         u32 cfg;
 281
 282         DRM_DEBUG_KMS("enable[%d]\n", enable);
 283
 284         cfg = fimc_read(EXYNOS_CIGCTRL);
 285         if (enable)
 286                 cfg |= EXYNOS_CIGCTRL_CAM_JPEG;
 287         else
 288                 cfg &= ~EXYNOS_CIGCTRL_CAM_JPEG;
 289
 290         fimc_write(cfg, EXYNOS_CIGCTRL);
 291 }
 292
 293 static void fimc_handle_irq(struct fimc_context *ctx, bool enable,
 294                 bool overflow, bool level)
 295 {
 296         u32 cfg;
 297
 298         DRM_DEBUG_KMS("enable[%d]overflow[%d]level[%d]\n",
 299                         enable, overflow, level);
 300
 301         cfg = fimc_read(EXYNOS_CIGCTRL);
 302         if (enable) {
 303                 cfg &= ~(EXYNOS_CIGCTRL_IRQ_OVFEN | EXYNOS_CIGCTRL_IRQ_LEVEL);
 304                 cfg |= EXYNOS_CIGCTRL_IRQ_ENABLE;
 305                 if (overflow)
 306                         cfg |= EXYNOS_CIGCTRL_IRQ_OVFEN;
 307                 if (level)
 308                         cfg |= EXYNOS_CIGCTRL_IRQ_LEVEL;
 309         } else
 310                 cfg &= ~(EXYNOS_CIGCTRL_IRQ_OVFEN | EXYNOS_CIGCTRL_IRQ_ENABLE);
 311
 312         fimc_write(cfg, EXYNOS_CIGCTRL);
 313 }
 314
 315 static void fimc_clear_irq(struct fimc_context *ctx)
 316 {
 317         u32 cfg;
 318
 319         cfg = fimc_read(EXYNOS_CIGCTRL);
 320         cfg |= EXYNOS_CIGCTRL_IRQ_CLR;
 321         fimc_write(cfg, EXYNOS_CIGCTRL);
 322 }
 323
 324 static bool fimc_check_ovf(struct fimc_context *ctx)
 325 {
 326         struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
 327         u32 cfg, status, flag;
 328
 329         status = fimc_read(EXYNOS_CISTATUS);
 330         flag = EXYNOS_CISTATUS_OVFIY | EXYNOS_CISTATUS_OVFICB |
 331                 EXYNOS_CISTATUS_OVFICR;
 332
 333         DRM_DEBUG_KMS("flag[0x%x]\n", flag);
 334
 335         if (status & flag) {
 336                 cfg = fimc_read(EXYNOS_CIWDOFST);
 337                 cfg |= (EXYNOS_CIWDOFST_CLROVFIY | EXYNOS_CIWDOFST_CLROVFICB |
 338                         EXYNOS_CIWDOFST_CLROVFICR);
 339
 340                 fimc_write(cfg, EXYNOS_CIWDOFST);
 341
 342                 cfg = fimc_read(EXYNOS_CIWDOFST);
 343                 cfg &= ~(EXYNOS_CIWDOFST_CLROVFIY | EXYNOS_CIWDOFST_CLROVFICB |
 344                         EXYNOS_CIWDOFST_CLROVFICR);
 345
 346                 fimc_write(cfg, EXYNOS_CIWDOFST);
 347
 348                 dev_err(ippdrv->dev, "occurred overflow at %d, status 0x%x.\n",
 349                         ctx->id, status);
 350                 return true;
 351         }
 352
 353         return false;
 354 }
 355
 356 static bool fimc_check_frame_end(struct fimc_context *ctx)
 357 {
 358         u32 cfg;
 359
 360         cfg = fimc_read(EXYNOS_CISTATUS);
 361
 362         DRM_DEBUG_KMS("cfg[0x%x]\n", cfg);
 363
 364         if (!(cfg & EXYNOS_CISTATUS_FRAMEEND))
 365                 return false;
 366
 367         cfg &= ~(EXYNOS_CISTATUS_FRAMEEND);
 368         fimc_write(cfg, EXYNOS_CISTATUS);
 369
 370         return true;
 371 }
 372
 373 static int fimc_get_buf_id(struct fimc_context *ctx)
 374 {
 375         u32 cfg;
 376         int frame_cnt, buf_id;
 377
 378         cfg = fimc_read(EXYNOS_CISTATUS2);
 379         frame_cnt = EXYNOS_CISTATUS2_GET_FRAMECOUNT_BEFORE(cfg);
 380
 381         if (frame_cnt == 0)
 382                 frame_cnt = EXYNOS_CISTATUS2_GET_FRAMECOUNT_PRESENT(cfg);
 383
 384         DRM_DEBUG_KMS("present[%d]before[%d]\n",
 385                 EXYNOS_CISTATUS2_GET_FRAMECOUNT_PRESENT(cfg),
 386                 EXYNOS_CISTATUS2_GET_FRAMECOUNT_BEFORE(cfg));
 387
 388         if (frame_cnt == 0) {
 389                 DRM_ERROR("failed to get frame count.\n");
 390                 return -EIO;
 391         }
 392
 393         buf_id = frame_cnt - 1;
 394         DRM_DEBUG_KMS("buf_id[%d]\n", buf_id);
 395
 396         return buf_id;
 397 }
 398
 399 static void fimc_handle_lastend(struct fimc_context *ctx, bool enable)
 400 {
 401         u32 cfg;
 402
 403         DRM_DEBUG_KMS("enable[%d]\n", enable);
 404
 405         cfg = fimc_read(EXYNOS_CIOCTRL);
 406         if (enable)
 407                 cfg |= EXYNOS_CIOCTRL_LASTENDEN;
 408         else
 409                 cfg &= ~EXYNOS_CIOCTRL_LASTENDEN;
 410
 411         fimc_write(cfg, EXYNOS_CIOCTRL);
 412 }
 413
 414
 415 static int fimc_src_set_fmt_order(struct fimc_context *ctx, u32 fmt)
 416 {
 417         struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
 418         u32 cfg;
 419
 420         DRM_DEBUG_KMS("fmt[0x%x]\n", fmt);
 421
 422         /* RGB */
 423         cfg = fimc_read(EXYNOS_CISCCTRL);
 424         cfg &= ~EXYNOS_CISCCTRL_INRGB_FMT_RGB_MASK;
 425
 426         switch (fmt) {
 427         case DRM_FORMAT_RGB565:
 428                 cfg |= EXYNOS_CISCCTRL_INRGB_FMT_RGB565;
 429                 fimc_write(cfg, EXYNOS_CISCCTRL);
 430                 return 0;
 431         case DRM_FORMAT_RGB888:
 432         case DRM_FORMAT_XRGB8888:
 433                 cfg |= EXYNOS_CISCCTRL_INRGB_FMT_RGB888;
 434                 fimc_write(cfg, EXYNOS_CISCCTRL);
 435                 return 0;
 436         default:
 437                 /* bypass */
 438                 break;
 439         }
 440
 441         /* YUV */
 442         cfg = fimc_read(EXYNOS_MSCTRL);
 443         cfg &= ~(EXYNOS_MSCTRL_ORDER2P_SHIFT_MASK |
 444                 EXYNOS_MSCTRL_C_INT_IN_2PLANE |
 445                 EXYNOS_MSCTRL_ORDER422_YCBYCR);
 446
 447         switch (fmt) {
 448         case DRM_FORMAT_YUYV:
 449                 cfg |= EXYNOS_MSCTRL_ORDER422_YCBYCR;
 450                 break;
 451         case DRM_FORMAT_YVYU:
 452                 cfg |= EXYNOS_MSCTRL_ORDER422_YCRYCB;
 453                 break;
 454         case DRM_FORMAT_UYVY:
 455                 cfg |= EXYNOS_MSCTRL_ORDER422_CBYCRY;
 456                 break;
 457         case DRM_FORMAT_VYUY:
 458         case DRM_FORMAT_YUV444:
 459                 cfg |= EXYNOS_MSCTRL_ORDER422_CRYCBY;
 460                 break;
 461         case DRM_FORMAT_NV21:
 462         case DRM_FORMAT_NV61:
 463                 cfg |= (EXYNOS_MSCTRL_ORDER2P_LSB_CRCB |
 464                         EXYNOS_MSCTRL_C_INT_IN_2PLANE);
 465                 break;
 466         case DRM_FORMAT_YUV422:
 467         case DRM_FORMAT_YUV420:
 468         case DRM_FORMAT_YVU420:
 469                 cfg |= EXYNOS_MSCTRL_C_INT_IN_3PLANE;
 470                 break;
 471         case DRM_FORMAT_NV12:
 472         case DRM_FORMAT_NV12MT:
 473         case DRM_FORMAT_NV16:
 474                 cfg |= (EXYNOS_MSCTRL_ORDER2P_LSB_CBCR |
 475                         EXYNOS_MSCTRL_C_INT_IN_2PLANE);
 476                 break;
 477         default:
 478                 dev_err(ippdrv->dev, "inavlid source yuv order 0x%x.\n", fmt);
 479                 return -EINVAL;
 480         }
 481
 482         fimc_write(cfg, EXYNOS_MSCTRL);
 483
 484         return 0;
 485 }
 486
 487 static int fimc_src_set_fmt(struct device *dev, u32 fmt)
 488 {
 489         struct fimc_context *ctx = get_fimc_context(dev);
 490         struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
 491         u32 cfg;
 492
 493         DRM_DEBUG_KMS("fmt[0x%x]\n", fmt);
 494
 495         cfg = fimc_read(EXYNOS_MSCTRL);
 496         cfg &= ~EXYNOS_MSCTRL_INFORMAT_RGB;
 497
 498         switch (fmt) {
 499         case DRM_FORMAT_RGB565:
 500         case DRM_FORMAT_RGB888:
 501         case DRM_FORMAT_XRGB8888:
 502                 cfg |= EXYNOS_MSCTRL_INFORMAT_RGB;
 503                 break;
 504         case DRM_FORMAT_YUV444:
 505                 cfg |= EXYNOS_MSCTRL_INFORMAT_YCBCR420;
 506                 break;
 507         case DRM_FORMAT_YUYV:
 508         case DRM_FORMAT_YVYU:
 509         case DRM_FORMAT_UYVY:
 510         case DRM_FORMAT_VYUY:
 511                 cfg |= EXYNOS_MSCTRL_INFORMAT_YCBCR422_1PLANE;
 512                 break;
 513         case DRM_FORMAT_NV16:
 514         case DRM_FORMAT_NV61:
 515         case DRM_FORMAT_YUV422:
 516                 cfg |= EXYNOS_MSCTRL_INFORMAT_YCBCR422;
 517                 break;
 518         case DRM_FORMAT_YUV420:
 519         case DRM_FORMAT_YVU420:
 520         case DRM_FORMAT_NV12:
 521         case DRM_FORMAT_NV21:
 522         case DRM_FORMAT_NV12MT:
 523                 cfg |= EXYNOS_MSCTRL_INFORMAT_YCBCR420;
 524                 break;
 525         default:
 526                 dev_err(ippdrv->dev, "inavlid source format 0x%x.\n", fmt);
 527                 return -EINVAL;
 528         }
 529
 530         fimc_write(cfg, EXYNOS_MSCTRL);
 531
 532         cfg = fimc_read(EXYNOS_CIDMAPARAM);
 533         cfg &= ~EXYNOS_CIDMAPARAM_R_MODE_MASK;
 534
 535         if (fmt == DRM_FORMAT_NV12MT)
 536                 cfg |= EXYNOS_CIDMAPARAM_R_MODE_64X32;
 537         else
 538                 cfg |= EXYNOS_CIDMAPARAM_R_MODE_LINEAR;
 539
 540         fimc_write(cfg, EXYNOS_CIDMAPARAM);
 541
 542         return fimc_src_set_fmt_order(ctx, fmt);
 543 }
 544
 545 static int fimc_src_set_transf(struct device *dev,
 546                 enum drm_exynos_degree degree,
 547                 enum drm_exynos_flip flip, bool *swap)
 548 {
 549         struct fimc_context *ctx = get_fimc_context(dev);
 550         struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
 551         u32 cfg1, cfg2;
 552
 553         DRM_DEBUG_KMS("degree[%d]flip[0x%x]\n", degree, flip);
 554
 555         cfg1 = fimc_read(EXYNOS_MSCTRL);
 556         cfg1 &= ~(EXYNOS_MSCTRL_FLIP_X_MIRROR |
 557                 EXYNOS_MSCTRL_FLIP_Y_MIRROR);
 558
 559         cfg2 = fimc_read(EXYNOS_CITRGFMT);
 560         cfg2 &= ~EXYNOS_CITRGFMT_INROT90_CLOCKWISE;
 561
 562         switch (degree) {
 563         case EXYNOS_DRM_DEGREE_0:
 564                 if (flip & EXYNOS_DRM_FLIP_VERTICAL)
 565                         cfg1 |= EXYNOS_MSCTRL_FLIP_X_MIRROR;
 566                 if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
 567                         cfg1 |= EXYNOS_MSCTRL_FLIP_Y_MIRROR;
 568                 break;
 569         case EXYNOS_DRM_DEGREE_90:
 570                 cfg2 |= EXYNOS_CITRGFMT_INROT90_CLOCKWISE;
 571                 if (flip & EXYNOS_DRM_FLIP_VERTICAL)
 572                         cfg1 |= EXYNOS_MSCTRL_FLIP_X_MIRROR;
 573                 if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
 574                         cfg1 |= EXYNOS_MSCTRL_FLIP_Y_MIRROR;
 575                 break;
 576         case EXYNOS_DRM_DEGREE_180:
 577                 cfg1 |= (EXYNOS_MSCTRL_FLIP_X_MIRROR |
 578                         EXYNOS_MSCTRL_FLIP_Y_MIRROR);
 579                 if (flip & EXYNOS_DRM_FLIP_VERTICAL)
 580                         cfg1 &= ~EXYNOS_MSCTRL_FLIP_X_MIRROR;
 581                 if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
 582                         cfg1 &= ~EXYNOS_MSCTRL_FLIP_Y_MIRROR;
 583                 break;
 584         case EXYNOS_DRM_DEGREE_270:
 585                 cfg1 |= (EXYNOS_MSCTRL_FLIP_X_MIRROR |
 586                         EXYNOS_MSCTRL_FLIP_Y_MIRROR);
 587                 cfg2 |= EXYNOS_CITRGFMT_INROT90_CLOCKWISE;
 588                 if (flip & EXYNOS_DRM_FLIP_VERTICAL)
 589                         cfg1 &= ~EXYNOS_MSCTRL_FLIP_X_MIRROR;
 590                 if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
 591                         cfg1 &= ~EXYNOS_MSCTRL_FLIP_Y_MIRROR;
 592                 break;
 593         default:
 594                 dev_err(ippdrv->dev, "inavlid degree value %d.\n", degree);
 595                 return -EINVAL;
 596         }
 597
 598         fimc_write(cfg1, EXYNOS_MSCTRL);
 599         fimc_write(cfg2, EXYNOS_CITRGFMT);
 600         *swap = (cfg2 & EXYNOS_CITRGFMT_INROT90_CLOCKWISE) ? 1 : 0;
 601
 602         return 0;
 603 }
 604
 605 static int fimc_set_window(struct fimc_context *ctx,
 606                 struct drm_exynos_pos *pos, struct drm_exynos_sz *sz)
 607 {
 608         u32 cfg, h1, h2, v1, v2;
 609
 610         /* cropped image */
 611         h1 = pos->x;
 612         h2 = sz->hsize - pos->w - pos->x;
 613         v1 = pos->y;
 614         v2 = sz->vsize - pos->h - pos->y;
 615
 616         DRM_DEBUG_KMS("x[%d]y[%d]w[%d]h[%d]hsize[%d]vsize[%d]\n",
 617                 pos->x, pos->y, pos->w, pos->h, sz->hsize, sz->vsize);
 618         DRM_DEBUG_KMS("h1[%d]h2[%d]v1[%d]v2[%d]\n", h1, h2, v1, v2);
 619
 620         /*
 621          * set window offset 1, 2 size
 622          * check figure 43-21 in user manual
 623          */
 624         cfg = fimc_read(EXYNOS_CIWDOFST);
 625         cfg &= ~(EXYNOS_CIWDOFST_WINHOROFST_MASK |
 626                 EXYNOS_CIWDOFST_WINVEROFST_MASK);
 627         cfg |= (EXYNOS_CIWDOFST_WINHOROFST(h1) |
 628                 EXYNOS_CIWDOFST_WINVEROFST(v1));
 629         cfg |= EXYNOS_CIWDOFST_WINOFSEN;
 630         fimc_write(cfg, EXYNOS_CIWDOFST);
 631
 632         cfg = (EXYNOS_CIWDOFST2_WINHOROFST2(h2) |
 633                 EXYNOS_CIWDOFST2_WINVEROFST2(v2));
 634         fimc_write(cfg, EXYNOS_CIWDOFST2);
 635
 636         return 0;
 637 }
 638
 639 static int fimc_src_set_size(struct device *dev, int swap,
 640                 struct drm_exynos_pos *pos, struct drm_exynos_sz *sz)
 641 {
 642         struct fimc_context *ctx = get_fimc_context(dev);
 643         struct drm_exynos_pos img_pos = *pos;
 644         struct drm_exynos_sz img_sz = *sz;
 645         u32 cfg;
 646
 647         DRM_DEBUG_KMS("swap[%d]hsize[%d]vsize[%d]\n",
 648                 swap, sz->hsize, sz->vsize);
 649
 650         /* original size */
 651         cfg = (EXYNOS_ORGISIZE_HORIZONTAL(img_sz.hsize) |
 652                 EXYNOS_ORGISIZE_VERTICAL(img_sz.vsize));
 653
 654         fimc_write(cfg, EXYNOS_ORGISIZE);
 655
 656         DRM_DEBUG_KMS("x[%d]y[%d]w[%d]h[%d]\n", pos->x, pos->y, pos->w, pos->h);
 657
 658         if (swap) {
 659                 img_pos.w = pos->h;
 660                 img_pos.h = pos->w;
 661                 img_sz.hsize = sz->vsize;
 662                 img_sz.vsize = sz->hsize;
 663         }
 664
 665         /* set input DMA image size */
 666         cfg = fimc_read(EXYNOS_CIREAL_ISIZE);
 667         cfg &= ~(EXYNOS_CIREAL_ISIZE_HEIGHT_MASK |
 668                 EXYNOS_CIREAL_ISIZE_WIDTH_MASK);
 669         cfg |= (EXYNOS_CIREAL_ISIZE_WIDTH(img_pos.w) |
 670                 EXYNOS_CIREAL_ISIZE_HEIGHT(img_pos.h));
 671         fimc_write(cfg, EXYNOS_CIREAL_ISIZE);
 672
 673         /*
 674          * set input FIFO image size
 675          * for now, we support only ITU601 8 bit mode
 676          */
 677         cfg = (EXYNOS_CISRCFMT_ITU601_8BIT |
 678                 EXYNOS_CISRCFMT_SOURCEHSIZE(img_sz.hsize) |
 679                 EXYNOS_CISRCFMT_SOURCEVSIZE(img_sz.vsize));
 680         fimc_write(cfg, EXYNOS_CISRCFMT);
 681
 682         /* offset Y(RGB), Cb, Cr */
 683         cfg = (EXYNOS_CIIYOFF_HORIZONTAL(img_pos.x) |
 684                 EXYNOS_CIIYOFF_VERTICAL(img_pos.y));
 685         fimc_write(cfg, EXYNOS_CIIYOFF);
 686         cfg = (EXYNOS_CIICBOFF_HORIZONTAL(img_pos.x) |
 687                 EXYNOS_CIICBOFF_VERTICAL(img_pos.y));
 688         fimc_write(cfg, EXYNOS_CIICBOFF);
 689         cfg = (EXYNOS_CIICROFF_HORIZONTAL(img_pos.x) |
 690                 EXYNOS_CIICROFF_VERTICAL(img_pos.y));
 691         fimc_write(cfg, EXYNOS_CIICROFF);
 692
 693         return fimc_set_window(ctx, &img_pos, &img_sz);
 694 }
 695
 696 static int fimc_src_set_addr(struct device *dev,
 697                 struct drm_exynos_ipp_buf_info *buf_info, u32 buf_id,
 698                 enum drm_exynos_ipp_buf_type buf_type)
 699 {
 700         struct fimc_context *ctx = get_fimc_context(dev);
 701         struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
 702         struct drm_exynos_ipp_cmd_node *c_node = ippdrv->c_node;
 703         struct drm_exynos_ipp_property *property;
 704         struct drm_exynos_ipp_config *config;
 705
 706         if (!c_node) {
 707                 DRM_ERROR("failed to get c_node.\n");
 708                 return -EINVAL;
 709         }
 710
 711         property = &c_node->property;
 712
 713         DRM_DEBUG_KMS("prop_id[%d]buf_id[%d]buf_type[%d]\n",
 714                 property->prop_id, buf_id, buf_type);
 715
 716         if (buf_id > FIMC_MAX_SRC) {
 717                 dev_info(ippdrv->dev, "inavlid buf_id %d.\n", buf_id);
 718                 return -ENOMEM;
 719         }
 720
 721         /* address register set */
 722         switch (buf_type) {
 723         case IPP_BUF_ENQUEUE:
 724                 config = &property->config[EXYNOS_DRM_OPS_SRC];
 725                 fimc_write(buf_info->base[EXYNOS_DRM_PLANAR_Y],
 726                         EXYNOS_CIIYSA(buf_id));
 727
 728                 if (config->fmt == DRM_FORMAT_YVU420) {
 729                         fimc_write(buf_info->base[EXYNOS_DRM_PLANAR_CR],
 730                                 EXYNOS_CIICBSA(buf_id));
 731                         fimc_write(buf_info->base[EXYNOS_DRM_PLANAR_CB],
 732                                 EXYNOS_CIICRSA(buf_id));
 733                 } else {
 734                         fimc_write(buf_info->base[EXYNOS_DRM_PLANAR_CB],
 735                                 EXYNOS_CIICBSA(buf_id));
 736                         fimc_write(buf_info->base[EXYNOS_DRM_PLANAR_CR],
 737                                 EXYNOS_CIICRSA(buf_id));
 738                 }
 739                 break;
 740         case IPP_BUF_DEQUEUE:
 741                 fimc_write(0x0, EXYNOS_CIIYSA(buf_id));
 742                 fimc_write(0x0, EXYNOS_CIICBSA(buf_id));
 743                 fimc_write(0x0, EXYNOS_CIICRSA(buf_id));
 744                 break;
 745         default:
 746                 /* bypass */
 747                 break;
 748         }
 749
 750         return 0;
 751 }
 752
 753 static struct exynos_drm_ipp_ops fimc_src_ops = {
 754         .set_fmt = fimc_src_set_fmt,
 755         .set_transf = fimc_src_set_transf,
 756         .set_size = fimc_src_set_size,
 757         .set_addr = fimc_src_set_addr,
 758 };
 759
 760 static int fimc_dst_set_fmt_order(struct fimc_context *ctx, u32 fmt)
 761 {
 762         struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
 763         u32 cfg;
 764
 765         DRM_DEBUG_KMS("fmt[0x%x]\n", fmt);
 766
 767         /* RGB */
 768         cfg = fimc_read(EXYNOS_CISCCTRL);
 769         cfg &= ~EXYNOS_CISCCTRL_OUTRGB_FMT_RGB_MASK;
 770
 771         switch (fmt) {
 772         case DRM_FORMAT_RGB565:
 773                 cfg |= EXYNOS_CISCCTRL_OUTRGB_FMT_RGB565;
 774                 fimc_write(cfg, EXYNOS_CISCCTRL);
 775                 return 0;
 776         case DRM_FORMAT_RGB888:
 777                 cfg |= EXYNOS_CISCCTRL_OUTRGB_FMT_RGB888;
 778                 fimc_write(cfg, EXYNOS_CISCCTRL);
 779                 return 0;
 780         case DRM_FORMAT_XRGB8888:
 781                 cfg |= (EXYNOS_CISCCTRL_OUTRGB_FMT_RGB888 |
 782                         EXYNOS_CISCCTRL_EXTRGB_EXTENSION);
 783                 fimc_write(cfg, EXYNOS_CISCCTRL);
 784                 break;
 785         default:
 786                 /* bypass */
 787                 break;
 788         }
 789
 790         /* YUV */
 791         cfg = fimc_read(EXYNOS_CIOCTRL);
 792         cfg &= ~(EXYNOS_CIOCTRL_ORDER2P_MASK |
 793                 EXYNOS_CIOCTRL_ORDER422_MASK |
 794                 EXYNOS_CIOCTRL_YCBCR_PLANE_MASK);
 795
 796         switch (fmt) {
 797         case DRM_FORMAT_XRGB8888:
 798                 cfg |= EXYNOS_CIOCTRL_ALPHA_OUT;
 799                 break;
 800         case DRM_FORMAT_YUYV:
 801                 cfg |= EXYNOS_CIOCTRL_ORDER422_YCBYCR;
 802                 break;
 803         case DRM_FORMAT_YVYU:
 804                 cfg |= EXYNOS_CIOCTRL_ORDER422_YCRYCB;
 805                 break;
 806         case DRM_FORMAT_UYVY:
 807                 cfg |= EXYNOS_CIOCTRL_ORDER422_CBYCRY;
 808                 break;
 809         case DRM_FORMAT_VYUY:
 810                 cfg |= EXYNOS_CIOCTRL_ORDER422_CRYCBY;
 811                 break;
 812         case DRM_FORMAT_NV21:
 813         case DRM_FORMAT_NV61:
 814                 cfg |= EXYNOS_CIOCTRL_ORDER2P_LSB_CRCB;
 815                 cfg |= EXYNOS_CIOCTRL_YCBCR_2PLANE;
 816                 break;
 817         case DRM_FORMAT_YUV422:
 818         case DRM_FORMAT_YUV420:
 819         case DRM_FORMAT_YVU420:
 820                 cfg |= EXYNOS_CIOCTRL_YCBCR_3PLANE;
 821                 break;
 822         case DRM_FORMAT_NV12:
 823         case DRM_FORMAT_NV12MT:
 824         case DRM_FORMAT_NV16:
 825                 cfg |= EXYNOS_CIOCTRL_ORDER2P_LSB_CBCR;
 826                 cfg |= EXYNOS_CIOCTRL_YCBCR_2PLANE;
 827                 break;
 828         default:
 829                 dev_err(ippdrv->dev, "inavlid target yuv order 0x%x.\n", fmt);
 830                 return -EINVAL;
 831         }
 832
 833         fimc_write(cfg, EXYNOS_CIOCTRL);
 834
 835         return 0;
 836 }
 837
 838 static int fimc_dst_set_fmt(struct device *dev, u32 fmt)
 839 {
 840         struct fimc_context *ctx = get_fimc_context(dev);
 841         struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
 842         u32 cfg;
 843
 844         DRM_DEBUG_KMS("fmt[0x%x]\n", fmt);
 845
 846         cfg = fimc_read(EXYNOS_CIEXTEN);
 847
 848         if (fmt == DRM_FORMAT_AYUV) {
 849                 cfg |= EXYNOS_CIEXTEN_YUV444_OUT;
 850                 fimc_write(cfg, EXYNOS_CIEXTEN);
 851         } else {
 852                 cfg &= ~EXYNOS_CIEXTEN_YUV444_OUT;
 853                 fimc_write(cfg, EXYNOS_CIEXTEN);
 854
 855                 cfg = fimc_read(EXYNOS_CITRGFMT);
 856                 cfg &= ~EXYNOS_CITRGFMT_OUTFORMAT_MASK;
 857
 858                 switch (fmt) {
 859                 case DRM_FORMAT_RGB565:
 860                 case DRM_FORMAT_RGB888:
 861                 case DRM_FORMAT_XRGB8888:
 862                         cfg |= EXYNOS_CITRGFMT_OUTFORMAT_RGB;
 863                         break;
 864                 case DRM_FORMAT_YUYV:
 865                 case DRM_FORMAT_YVYU:
 866                 case DRM_FORMAT_UYVY:
 867                 case DRM_FORMAT_VYUY:
 868                         cfg |= EXYNOS_CITRGFMT_OUTFORMAT_YCBCR422_1PLANE;
 869                         break;
 870                 case DRM_FORMAT_NV16:
 871                 case DRM_FORMAT_NV61:
 872                 case DRM_FORMAT_YUV422:
 873                         cfg |= EXYNOS_CITRGFMT_OUTFORMAT_YCBCR422;
 874                         break;
 875                 case DRM_FORMAT_YUV420:
 876                 case DRM_FORMAT_YVU420:
 877                 case DRM_FORMAT_NV12:
 878                 case DRM_FORMAT_NV12MT:
 879                 case DRM_FORMAT_NV21:
 880                         cfg |= EXYNOS_CITRGFMT_OUTFORMAT_YCBCR420;
 881                         break;
 882                 default:
 883                         dev_err(ippdrv->dev, "inavlid target format 0x%x.\n",
 884                                 fmt);
 885                         return -EINVAL;
 886                 }
 887
 888                 fimc_write(cfg, EXYNOS_CITRGFMT);
 889         }
 890
 891         cfg = fimc_read(EXYNOS_CIDMAPARAM);
 892         cfg &= ~EXYNOS_CIDMAPARAM_W_MODE_MASK;
 893
 894         if (fmt == DRM_FORMAT_NV12MT)
 895                 cfg |= EXYNOS_CIDMAPARAM_W_MODE_64X32;
 896         else
 897                 cfg |= EXYNOS_CIDMAPARAM_W_MODE_LINEAR;
 898
 899         fimc_write(cfg, EXYNOS_CIDMAPARAM);
 900
 901         return fimc_dst_set_fmt_order(ctx, fmt);
 902 }
 903
 904 static int fimc_dst_set_transf(struct device *dev,
 905                 enum drm_exynos_degree degree,
 906                 enum drm_exynos_flip flip, bool *swap)
 907 {
 908         struct fimc_context *ctx = get_fimc_context(dev);
 909         struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
 910         u32 cfg;
 911
 912         DRM_DEBUG_KMS("degree[%d]flip[0x%x]\n", degree, flip);
 913
 914         cfg = fimc_read(EXYNOS_CITRGFMT);
 915         cfg &= ~EXYNOS_CITRGFMT_FLIP_MASK;
 916         cfg &= ~EXYNOS_CITRGFMT_OUTROT90_CLOCKWISE;
 917
 918         switch (degree) {
 919         case EXYNOS_DRM_DEGREE_0:
 920                 if (flip & EXYNOS_DRM_FLIP_VERTICAL)
 921                         cfg |= EXYNOS_CITRGFMT_FLIP_X_MIRROR;
 922                 if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
 923                         cfg |= EXYNOS_CITRGFMT_FLIP_Y_MIRROR;
 924                 break;
 925         case EXYNOS_DRM_DEGREE_90:
 926                 cfg |= EXYNOS_CITRGFMT_OUTROT90_CLOCKWISE;
 927                 if (flip & EXYNOS_DRM_FLIP_VERTICAL)
 928                         cfg |= EXYNOS_CITRGFMT_FLIP_X_MIRROR;
 929                 if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
 930                         cfg |= EXYNOS_CITRGFMT_FLIP_Y_MIRROR;
 931                 break;
 932         case EXYNOS_DRM_DEGREE_180:
 933                 cfg |= (EXYNOS_CITRGFMT_FLIP_X_MIRROR |
 934                         EXYNOS_CITRGFMT_FLIP_Y_MIRROR);
 935                 if (flip & EXYNOS_DRM_FLIP_VERTICAL)
 936                         cfg &= ~EXYNOS_CITRGFMT_FLIP_X_MIRROR;
 937                 if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
 938                         cfg &= ~EXYNOS_CITRGFMT_FLIP_Y_MIRROR;
 939                 break;
 940         case EXYNOS_DRM_DEGREE_270:
 941                 cfg |= (EXYNOS_CITRGFMT_OUTROT90_CLOCKWISE |
 942                         EXYNOS_CITRGFMT_FLIP_X_MIRROR |
 943                         EXYNOS_CITRGFMT_FLIP_Y_MIRROR);
 944                 if (flip & EXYNOS_DRM_FLIP_VERTICAL)
 945                         cfg &= ~EXYNOS_CITRGFMT_FLIP_X_MIRROR;
 946                 if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
 947                         cfg &= ~EXYNOS_CITRGFMT_FLIP_Y_MIRROR;
 948                 break;
 949         default:
 950                 dev_err(ippdrv->dev, "inavlid degree value %d.\n", degree);
 951                 return -EINVAL;
 952         }
 953
 954         fimc_write(cfg, EXYNOS_CITRGFMT);
 955         *swap = (cfg & EXYNOS_CITRGFMT_OUTROT90_CLOCKWISE) ? 1 : 0;
 956
 957         return 0;
 958 }
 959
 960 static int fimc_get_ratio_shift(u32 src, u32 dst, u32 *ratio, u32 *shift)
 961 {
 962         DRM_DEBUG_KMS("src[%d]dst[%d]\n", src, dst);
 963
 964         if (src >= dst * 64) {
 965                 DRM_ERROR("failed to make ratio and shift.\n");
 966                 return -EINVAL;
 967         } else if (src >= dst * 32) {
 968                 *ratio = 32;
 969                 *shift = 5;
 970         } else if (src >= dst * 16) {
 971                 *ratio = 16;
 972                 *shift = 4;
 973         } else if (src >= dst * 8) {
 974                 *ratio = 8;
 975                 *shift = 3;
 976         } else if (src >= dst * 4) {
 977                 *ratio = 4;
 978                 *shift = 2;
 979         } else if (src >= dst * 2) {
 980                 *ratio = 2;
 981                 *shift = 1;
 982         } else {
 983                 *ratio = 1;
 984                 *shift = 0;
 985         }
 986
 987         return 0;
 988 }
 989
 990 static int fimc_set_prescaler(struct fimc_context *ctx, struct fimc_scaler *sc,
 991                 struct drm_exynos_pos *src, struct drm_exynos_pos *dst)
 992 {
 993         struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
 994         u32 cfg, cfg_ext, shfactor;
 995         u32 pre_dst_width, pre_dst_height;
 996         u32 pre_hratio, hfactor, pre_vratio, vfactor;
 997         int ret = 0;
 998         u32 src_w, src_h, dst_w, dst_h;
 999
1000         cfg_ext = fimc_read(EXYNOS_CITRGFMT);
1001         if (cfg_ext & EXYNOS_CITRGFMT_INROT90_CLOCKWISE) {
1002                 src_w = src->h;
1003                 src_h = src->w;
1004         } else {
1005                 src_w = src->w;
1006                 src_h = src->h;
1007         }
1008
1009         if (cfg_ext & EXYNOS_CITRGFMT_OUTROT90_CLOCKWISE) {
1010                 dst_w = dst->h;
1011                 dst_h = dst->w;
1012         } else {
1013                 dst_w = dst->w;
1014                 dst_h = dst->h;
1015         }
1016
1017         ret = fimc_get_ratio_shift(src_w, dst_w, &pre_hratio, &hfactor);
1018         if (ret) {
1019                 dev_err(ippdrv->dev, "failed to get ratio horizontal.\n");
1020                 return ret;
1021         }
1022
1023         ret = fimc_get_ratio_shift(src_h, dst_h, &pre_vratio, &vfactor);
1024         if (ret) {
1025                 dev_err(ippdrv->dev, "failed to get ratio vertical.\n");
1026                 return ret;
1027         }
1028
1029         pre_dst_width = src_w / pre_hratio;
1030         pre_dst_height = src_h / pre_vratio;
1031         DRM_DEBUG_KMS("pre_dst_width[%d]pre_dst_height[%d]\n",
1032                 pre_dst_width, pre_dst_height);
1033         DRM_DEBUG_KMS("pre_hratio[%d]hfactor[%d]pre_vratio[%d]vfactor[%d]\n",
1034                 pre_hratio, hfactor, pre_vratio, vfactor);
1035
1036         sc->hratio = (src_w << 14) / (dst_w << hfactor);
1037         sc->vratio = (src_h << 14) / (dst_h << vfactor);
1038         sc->up_h = (dst_w >= src_w) ? true : false;
1039         sc->up_v = (dst_h >= src_h) ? true : false;
1040         DRM_DEBUG_KMS("hratio[%d]vratio[%d]up_h[%d]up_v[%d]\n",
1041                 sc->hratio, sc->vratio, sc->up_h, sc->up_v);
1042
1043         shfactor = FIMC_SHFACTOR - (hfactor + vfactor);
1044         DRM_DEBUG_KMS("shfactor[%d]\n", shfactor);
1045
1046         cfg = (EXYNOS_CISCPRERATIO_SHFACTOR(shfactor) |
1047                 EXYNOS_CISCPRERATIO_PREHORRATIO(pre_hratio) |
1048                 EXYNOS_CISCPRERATIO_PREVERRATIO(pre_vratio));
1049         fimc_write(cfg, EXYNOS_CISCPRERATIO);
1050
1051         cfg = (EXYNOS_CISCPREDST_PREDSTWIDTH(pre_dst_width) |
1052                 EXYNOS_CISCPREDST_PREDSTHEIGHT(pre_dst_height));
1053         fimc_write(cfg, EXYNOS_CISCPREDST);
1054
1055         return ret;
1056 }
1057
1058 static void fimc_set_scaler(struct fimc_context *ctx, struct fimc_scaler *sc)
1059 {
1060         u32 cfg, cfg_ext;
1061
1062         DRM_DEBUG_KMS("range[%d]bypass[%d]up_h[%d]up_v[%d]\n",
1063                 sc->range, sc->bypass, sc->up_h, sc->up_v);
1064         DRM_DEBUG_KMS("hratio[%d]vratio[%d]\n",
1065                 sc->hratio, sc->vratio);
1066
1067         cfg = fimc_read(EXYNOS_CISCCTRL);
1068         cfg &= ~(EXYNOS_CISCCTRL_SCALERBYPASS |
1069                 EXYNOS_CISCCTRL_SCALEUP_H | EXYNOS_CISCCTRL_SCALEUP_V |
1070                 EXYNOS_CISCCTRL_MAIN_V_RATIO_MASK |
1071                 EXYNOS_CISCCTRL_MAIN_H_RATIO_MASK |
1072                 EXYNOS_CISCCTRL_CSCR2Y_WIDE |
1073                 EXYNOS_CISCCTRL_CSCY2R_WIDE);
1074
1075         if (sc->range)
1076                 cfg |= (EXYNOS_CISCCTRL_CSCR2Y_WIDE |
1077                         EXYNOS_CISCCTRL_CSCY2R_WIDE);
1078         if (sc->bypass)
1079                 cfg |= EXYNOS_CISCCTRL_SCALERBYPASS;
1080         if (sc->up_h)
1081                 cfg |= EXYNOS_CISCCTRL_SCALEUP_H;
1082         if (sc->up_v)
1083                 cfg |= EXYNOS_CISCCTRL_SCALEUP_V;
1084
1085         cfg |= (EXYNOS_CISCCTRL_MAINHORRATIO((sc->hratio >> 6)) |
1086                 EXYNOS_CISCCTRL_MAINVERRATIO((sc->vratio >> 6)));
1087         fimc_write(cfg, EXYNOS_CISCCTRL);
1088
1089         cfg_ext = fimc_read(EXYNOS_CIEXTEN);
1090         cfg_ext &= ~EXYNOS_CIEXTEN_MAINHORRATIO_EXT_MASK;
1091         cfg_ext &= ~EXYNOS_CIEXTEN_MAINVERRATIO_EXT_MASK;
1092         cfg_ext |= (EXYNOS_CIEXTEN_MAINHORRATIO_EXT(sc->hratio) |
1093                 EXYNOS_CIEXTEN_MAINVERRATIO_EXT(sc->vratio));
1094         fimc_write(cfg_ext, EXYNOS_CIEXTEN);
1095 }
1096
1097 static int fimc_dst_set_size(struct device *dev, int swap,
1098                 struct drm_exynos_pos *pos, struct drm_exynos_sz *sz)
1099 {
1100         struct fimc_context *ctx = get_fimc_context(dev);
1101         struct drm_exynos_pos img_pos = *pos;
1102         struct drm_exynos_sz img_sz = *sz;
1103         u32 cfg;
1104
1105         DRM_DEBUG_KMS("swap[%d]hsize[%d]vsize[%d]\n",
1106                 swap, sz->hsize, sz->vsize);
1107
1108         /* original size */
1109         cfg = (EXYNOS_ORGOSIZE_HORIZONTAL(img_sz.hsize) |
1110                 EXYNOS_ORGOSIZE_VERTICAL(img_sz.vsize));
1111
1112         fimc_write(cfg, EXYNOS_ORGOSIZE);
1113
1114         DRM_DEBUG_KMS("x[%d]y[%d]w[%d]h[%d]\n", pos->x, pos->y, pos->w, pos->h);
1115
1116         /* CSC ITU */
1117         cfg = fimc_read(EXYNOS_CIGCTRL);
1118         cfg &= ~EXYNOS_CIGCTRL_CSC_MASK;
1119
1120         if (sz->hsize >= FIMC_WIDTH_ITU_709)
1121                 cfg |= EXYNOS_CIGCTRL_CSC_ITU709;
1122         else
1123                 cfg |= EXYNOS_CIGCTRL_CSC_ITU601;
1124
1125         fimc_write(cfg, EXYNOS_CIGCTRL);
1126
1127         if (swap) {
1128                 img_pos.w = pos->h;
1129                 img_pos.h = pos->w;
1130                 img_sz.hsize = sz->vsize;
1131                 img_sz.vsize = sz->hsize;
1132         }
1133
1134         /* target image size */
1135         cfg = fimc_read(EXYNOS_CITRGFMT);
1136         cfg &= ~(EXYNOS_CITRGFMT_TARGETH_MASK |
1137                 EXYNOS_CITRGFMT_TARGETV_MASK);
1138         cfg |= (EXYNOS_CITRGFMT_TARGETHSIZE(img_pos.w) |
1139                 EXYNOS_CITRGFMT_TARGETVSIZE(img_pos.h));
1140         fimc_write(cfg, EXYNOS_CITRGFMT);
1141
1142         /* target area */
1143         cfg = EXYNOS_CITAREA_TARGET_AREA(img_pos.w * img_pos.h);
1144         fimc_write(cfg, EXYNOS_CITAREA);
1145
1146         /* offset Y(RGB), Cb, Cr */
1147         cfg = (EXYNOS_CIOYOFF_HORIZONTAL(img_pos.x) |
1148                 EXYNOS_CIOYOFF_VERTICAL(img_pos.y));
1149         fimc_write(cfg, EXYNOS_CIOYOFF);
1150         cfg = (EXYNOS_CIOCBOFF_HORIZONTAL(img_pos.x) |
1151                 EXYNOS_CIOCBOFF_VERTICAL(img_pos.y));
1152         fimc_write(cfg, EXYNOS_CIOCBOFF);
1153         cfg = (EXYNOS_CIOCROFF_HORIZONTAL(img_pos.x) |
1154                 EXYNOS_CIOCROFF_VERTICAL(img_pos.y));
1155         fimc_write(cfg, EXYNOS_CIOCROFF);
1156
1157         return 0;
1158 }
1159
1160 static int fimc_dst_get_buf_seq(struct fimc_context *ctx)
1161 {
1162         u32 cfg, i, buf_num = 0;
1163         u32 mask = 0x00000001;
1164
1165         cfg = fimc_read(EXYNOS_CIFCNTSEQ);
1166
1167         for (i = 0; i < FIMC_REG_SZ; i++)
1168                 if (cfg & (mask << i))
1169                         buf_num++;
1170
1171         DRM_DEBUG_KMS("buf_num[%d]\n", buf_num);
1172
1173         return buf_num;
1174 }
1175
1176 static int fimc_dst_set_buf_seq(struct fimc_context *ctx, u32 buf_id,
1177                 enum drm_exynos_ipp_buf_type buf_type)
1178 {
1179         struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
1180         bool enable;
1181         u32 cfg;
1182         u32 mask = 0x00000001 << buf_id;
1183         int ret = 0;
1184
1185         DRM_DEBUG_KMS("buf_id[%d]buf_type[%d]\n", buf_id, buf_type);
1186
1187         mutex_lock(&ctx->lock);
1188
1189         /* mask register set */
1190         cfg = fimc_read(EXYNOS_CIFCNTSEQ);
1191
1192         switch (buf_type) {
1193         case IPP_BUF_ENQUEUE:
1194                 enable = true;
1195                 break;
1196         case IPP_BUF_DEQUEUE:
1197                 enable = false;
1198                 break;
1199         default:
1200                 dev_err(ippdrv->dev, "invalid buf ctrl parameter.\n");
1201                 ret =  -EINVAL;
1202                 goto err_unlock;
1203         }
1204
1205         /* sequence id */
1206         cfg &= ~mask;
1207         cfg |= (enable << buf_id);
1208         fimc_write(cfg, EXYNOS_CIFCNTSEQ);
1209
1210         /* interrupt enable */
1211         if (buf_type == IPP_BUF_ENQUEUE &&
1212             fimc_dst_get_buf_seq(ctx) >= FIMC_BUF_START)
1213                 fimc_handle_irq(ctx, true, false, true);
1214
1215         /* interrupt disable */
1216         if (buf_type == IPP_BUF_DEQUEUE &&
1217             fimc_dst_get_buf_seq(ctx) <= FIMC_BUF_STOP)
1218                 fimc_handle_irq(ctx, false, false, true);
1219
1220 err_unlock:
1221         mutex_unlock(&ctx->lock);
1222         return ret;
1223 }
1224
1225 static int fimc_dst_set_addr(struct device *dev,
1226                 struct drm_exynos_ipp_buf_info *buf_info, u32 buf_id,
1227                 enum drm_exynos_ipp_buf_type buf_type)
1228 {
1229         struct fimc_context *ctx = get_fimc_context(dev);
1230         struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
1231         struct drm_exynos_ipp_cmd_node *c_node = ippdrv->c_node;
1232         struct drm_exynos_ipp_property *property;
1233         struct drm_exynos_ipp_config *config;
1234
1235         if (!c_node) {
1236                 DRM_ERROR("failed to get c_node.\n");
1237                 return -EINVAL;
1238         }
1239
1240         property = &c_node->property;
1241
1242         DRM_DEBUG_KMS("prop_id[%d]buf_id[%d]buf_type[%d]\n",
1243                 property->prop_id, buf_id, buf_type);
1244
1245         if (buf_id > FIMC_MAX_DST) {
1246                 dev_info(ippdrv->dev, "inavlid buf_id %d.\n", buf_id);
1247                 return -ENOMEM;
1248         }
1249
1250         /* address register set */
1251         switch (buf_type) {
1252         case IPP_BUF_ENQUEUE:
1253                 config = &property->config[EXYNOS_DRM_OPS_DST];
1254
1255                 fimc_write(buf_info->base[EXYNOS_DRM_PLANAR_Y],
1256                         EXYNOS_CIOYSA(buf_id));
1257
1258                 if (config->fmt == DRM_FORMAT_YVU420) {
1259                         fimc_write(buf_info->base[EXYNOS_DRM_PLANAR_CR],
1260                                 EXYNOS_CIOCBSA(buf_id));
1261                         fimc_write(buf_info->base[EXYNOS_DRM_PLANAR_CB],
1262                                 EXYNOS_CIOCRSA(buf_id));
1263                 } else {
1264                         fimc_write(buf_info->base[EXYNOS_DRM_PLANAR_CB],
1265                                 EXYNOS_CIOCBSA(buf_id));
1266                         fimc_write(buf_info->base[EXYNOS_DRM_PLANAR_CR],
1267                                 EXYNOS_CIOCRSA(buf_id));
1268                 }
1269                 break;
1270         case IPP_BUF_DEQUEUE:
1271                 fimc_write(0x0, EXYNOS_CIOYSA(buf_id));
1272                 fimc_write(0x0, EXYNOS_CIOCBSA(buf_id));
1273                 fimc_write(0x0, EXYNOS_CIOCRSA(buf_id));
1274                 break;
1275         default:
1276                 /* bypass */
1277                 break;
1278         }
1279
1280         return fimc_dst_set_buf_seq(ctx, buf_id, buf_type);
1281 }
1282
1283 static struct exynos_drm_ipp_ops fimc_dst_ops = {
1284         .set_fmt = fimc_dst_set_fmt,
1285         .set_transf = fimc_dst_set_transf,
1286         .set_size = fimc_dst_set_size,
1287         .set_addr = fimc_dst_set_addr,
1288 };
1289
1290 static int fimc_clk_ctrl(struct fimc_context *ctx, bool enable)
1291 {
1292         DRM_DEBUG_KMS("enable[%d]\n", enable);
1293
1294         if (enable) {
1295                 clk_prepare_enable(ctx->clocks[FIMC_CLK_GATE]);
1296                 clk_prepare_enable(ctx->clocks[FIMC_CLK_WB_A]);
1297                 ctx->suspended = false;
1298         } else {
1299                 clk_disable_unprepare(ctx->clocks[FIMC_CLK_GATE]);
1300                 clk_disable_unprepare(ctx->clocks[FIMC_CLK_WB_A]);
1301                 ctx->suspended = true;
1302         }
1303
1304         return 0;
1305 }
1306
1307 static irqreturn_t fimc_irq_handler(int irq, void *dev_id)
1308 {
1309         struct fimc_context *ctx = dev_id;
1310         struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
1311         struct drm_exynos_ipp_cmd_node *c_node = ippdrv->c_node;
1312         struct drm_exynos_ipp_event_work *event_work =
1313                 c_node->event_work;
1314         int buf_id;
1315
1316         DRM_DEBUG_KMS("fimc id[%d]\n", ctx->id);
1317
1318         fimc_clear_irq(ctx);
1319         if (fimc_check_ovf(ctx))
1320                 return IRQ_NONE;
1321
1322         if (!fimc_check_frame_end(ctx))
1323                 return IRQ_NONE;
1324
1325         buf_id = fimc_get_buf_id(ctx);
1326         if (buf_id < 0)
1327                 return IRQ_HANDLED;
1328
1329         DRM_DEBUG_KMS("buf_id[%d]\n", buf_id);
1330
1331         if (fimc_dst_set_buf_seq(ctx, buf_id, IPP_BUF_DEQUEUE) < 0) {
1332                 DRM_ERROR("failed to dequeue.\n");
1333                 return IRQ_HANDLED;
1334         }
1335
1336         event_work->ippdrv = ippdrv;
1337         event_work->buf_id[EXYNOS_DRM_OPS_DST] = buf_id;
1338         queue_work(ippdrv->event_workq, (struct work_struct *)event_work);
1339
1340         return IRQ_HANDLED;
1341 }
1342
1343 static int fimc_init_prop_list(struct exynos_drm_ippdrv *ippdrv)
1344 {
1345         struct drm_exynos_ipp_prop_list *prop_list;
1346
1347         prop_list = devm_kzalloc(ippdrv->dev, sizeof(*prop_list), GFP_KERNEL);
1348         if (!prop_list)
1349                 return -ENOMEM;
1350
1351         prop_list->version = 1;
1352         prop_list->writeback = 1;
1353         prop_list->refresh_min = FIMC_REFRESH_MIN;
1354         prop_list->refresh_max = FIMC_REFRESH_MAX;
1355         prop_list->flip = (1 << EXYNOS_DRM_FLIP_NONE) |
1356                                 (1 << EXYNOS_DRM_FLIP_VERTICAL) |
1357                                 (1 << EXYNOS_DRM_FLIP_HORIZONTAL);
1358         prop_list->degree = (1 << EXYNOS_DRM_DEGREE_0) |
1359                                 (1 << EXYNOS_DRM_DEGREE_90) |
1360                                 (1 << EXYNOS_DRM_DEGREE_180) |
1361                                 (1 << EXYNOS_DRM_DEGREE_270);
1362         prop_list->csc = 1;
1363         prop_list->crop = 1;
1364         prop_list->crop_max.hsize = FIMC_CROP_MAX;
1365         prop_list->crop_max.vsize = FIMC_CROP_MAX;
1366         prop_list->crop_min.hsize = FIMC_CROP_MIN;
1367         prop_list->crop_min.vsize = FIMC_CROP_MIN;
1368         prop_list->scale = 1;
1369         prop_list->scale_max.hsize = FIMC_SCALE_MAX;
1370         prop_list->scale_max.vsize = FIMC_SCALE_MAX;
1371         prop_list->scale_min.hsize = FIMC_SCALE_MIN;
1372         prop_list->scale_min.vsize = FIMC_SCALE_MIN;
1373
1374         ippdrv->prop_list = prop_list;
1375
1376         return 0;
1377 }
1378
1379 static inline bool fimc_check_drm_flip(enum drm_exynos_flip flip)
1380 {
1381         switch (flip) {
1382         case EXYNOS_DRM_FLIP_NONE:
1383         case EXYNOS_DRM_FLIP_VERTICAL:
1384         case EXYNOS_DRM_FLIP_HORIZONTAL:
1385         case EXYNOS_DRM_FLIP_BOTH:
1386                 return true;
1387         default:
1388                 DRM_DEBUG_KMS("invalid flip\n");
1389                 return false;
1390         }
1391 }
1392
1393 static int fimc_ippdrv_check_property(struct device *dev,
1394                 struct drm_exynos_ipp_property *property)
1395 {
1396         struct fimc_context *ctx = get_fimc_context(dev);
1397         struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
1398         struct drm_exynos_ipp_prop_list *pp = ippdrv->prop_list;
1399         struct drm_exynos_ipp_config *config;
1400         struct drm_exynos_pos *pos;
1401         struct drm_exynos_sz *sz;
1402         bool swap;
1403         int i;
1404
1405         for_each_ipp_ops(i) {
1406                 if ((i == EXYNOS_DRM_OPS_SRC) &&
1407                         (property->cmd == IPP_CMD_WB))
1408                         continue;
1409
1410                 config = &property->config[i];
1411                 pos = &config->pos;
1412                 sz = &config->sz;
1413
1414                 /* check for flip */
1415                 if (!fimc_check_drm_flip(config->flip)) {
1416                         DRM_ERROR("invalid flip.\n");
1417                         goto err_property;
1418                 }
1419
1420                 /* check for degree */
1421                 switch (config->degree) {
1422                 case EXYNOS_DRM_DEGREE_90:
1423                 case EXYNOS_DRM_DEGREE_270:
1424                         swap = true;
1425                         break;
1426                 case EXYNOS_DRM_DEGREE_0:
1427                 case EXYNOS_DRM_DEGREE_180:
1428                         swap = false;
1429                         break;
1430                 default:
1431                         DRM_ERROR("invalid degree.\n");
1432                         goto err_property;
1433                 }
1434
1435                 /* check for buffer bound */
1436                 if ((pos->x + pos->w > sz->hsize) ||
1437                         (pos->y + pos->h > sz->vsize)) {
1438                         DRM_ERROR("out of buf bound.\n");
1439                         goto err_property;
1440                 }
1441
1442                 /* check for crop */
1443                 if ((i == EXYNOS_DRM_OPS_SRC) && (pp->crop)) {
1444                         if (swap) {
1445                                 if ((pos->h < pp->crop_min.hsize) ||
1446                                         (sz->vsize > pp->crop_max.hsize) ||
1447                                         (pos->w < pp->crop_min.vsize) ||
1448                                         (sz->hsize > pp->crop_max.vsize)) {
1449                                         DRM_ERROR("out of crop size.\n");
1450                                         goto err_property;
1451                                 }
1452                         } else {
1453                                 if ((pos->w < pp->crop_min.hsize) ||
1454                                         (sz->hsize > pp->crop_max.hsize) ||
1455                                         (pos->h < pp->crop_min.vsize) ||
1456                                         (sz->vsize > pp->crop_max.vsize)) {
1457                                         DRM_ERROR("out of crop size.\n");
1458                                         goto err_property;
1459                                 }
1460                         }
1461                 }
1462
1463                 /* check for scale */
1464                 if ((i == EXYNOS_DRM_OPS_DST) && (pp->scale)) {
1465                         if (swap) {
1466                                 if ((pos->h < pp->scale_min.hsize) ||
1467                                         (sz->vsize > pp->scale_max.hsize) ||
1468                                         (pos->w < pp->scale_min.vsize) ||
1469                                         (sz->hsize > pp->scale_max.vsize)) {
1470                                         DRM_ERROR("out of scale size.\n");
1471                                         goto err_property;
1472                                 }
1473                         } else {
1474                                 if ((pos->w < pp->scale_min.hsize) ||
1475                                         (sz->hsize > pp->scale_max.hsize) ||
1476                                         (pos->h < pp->scale_min.vsize) ||
1477                                         (sz->vsize > pp->scale_max.vsize)) {
1478                                         DRM_ERROR("out of scale size.\n");
1479                                         goto err_property;
1480                                 }
1481                         }
1482                 }
1483         }
1484
1485         return 0;
1486
1487 err_property:
1488         for_each_ipp_ops(i) {
1489                 if ((i == EXYNOS_DRM_OPS_SRC) &&
1490                         (property->cmd == IPP_CMD_WB))
1491                         continue;
1492
1493                 config = &property->config[i];
1494                 pos = &config->pos;
1495                 sz = &config->sz;
1496
1497                 DRM_ERROR("[%s]f[%d]r[%d]pos[%d %d %d %d]sz[%d %d]\n",
1498                         i ? "dst" : "src", config->flip, config->degree,
1499                         pos->x, pos->y, pos->w, pos->h,
1500                         sz->hsize, sz->vsize);
1501         }
1502
1503         return -EINVAL;
1504 }
1505
1506 static void fimc_clear_addr(struct fimc_context *ctx)
1507 {
1508         int i;
1509
1510         for (i = 0; i < FIMC_MAX_SRC; i++) {
1511                 fimc_write(0, EXYNOS_CIIYSA(i));
1512                 fimc_write(0, EXYNOS_CIICBSA(i));
1513                 fimc_write(0, EXYNOS_CIICRSA(i));
1514         }
1515
1516         for (i = 0; i < FIMC_MAX_DST; i++) {
1517                 fimc_write(0, EXYNOS_CIOYSA(i));
1518                 fimc_write(0, EXYNOS_CIOCBSA(i));
1519                 fimc_write(0, EXYNOS_CIOCRSA(i));
1520         }
1521 }
1522
1523 static int fimc_ippdrv_reset(struct device *dev)
1524 {
1525         struct fimc_context *ctx = get_fimc_context(dev);
1526
1527         /* reset h/w block */
1528         fimc_sw_reset(ctx);
1529
1530         /* reset scaler capability */
1531         memset(&ctx->sc, 0x0, sizeof(ctx->sc));
1532
1533         fimc_clear_addr(ctx);
1534
1535         return 0;
1536 }
1537
1538 static int fimc_ippdrv_start(struct device *dev, enum drm_exynos_ipp_cmd cmd)
1539 {
1540         struct fimc_context *ctx = get_fimc_context(dev);
1541         struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
1542         struct drm_exynos_ipp_cmd_node *c_node = ippdrv->c_node;
1543         struct drm_exynos_ipp_property *property;
1544         struct drm_exynos_ipp_config *config;
1545         struct drm_exynos_pos   img_pos[EXYNOS_DRM_OPS_MAX];
1546         struct drm_exynos_ipp_set_wb set_wb;
1547         int ret, i;
1548         u32 cfg0, cfg1;
1549
1550         DRM_DEBUG_KMS("cmd[%d]\n", cmd);
1551
1552         if (!c_node) {
1553                 DRM_ERROR("failed to get c_node.\n");
1554                 return -EINVAL;
1555         }
1556
1557         property = &c_node->property;
1558
1559         fimc_handle_irq(ctx, true, false, true);
1560
1561         for_each_ipp_ops(i) {
1562                 config = &property->config[i];
1563                 img_pos[i] = config->pos;
1564         }
1565
1566         ret = fimc_set_prescaler(ctx, &ctx->sc,
1567                 &img_pos[EXYNOS_DRM_OPS_SRC],
1568                 &img_pos[EXYNOS_DRM_OPS_DST]);
1569         if (ret) {
1570                 dev_err(dev, "failed to set precalser.\n");
1571                 return ret;
1572         }
1573
1574         /* If set ture, we can save jpeg about screen */
1575         fimc_handle_jpeg(ctx, false);
1576         fimc_set_scaler(ctx, &ctx->sc);
1577         fimc_set_polarity(ctx, &ctx->pol);
1578
1579         switch (cmd) {
1580         case IPP_CMD_M2M:
1581                 fimc_set_type_ctrl(ctx, FIMC_WB_NONE);
1582                 fimc_handle_lastend(ctx, false);
1583
1584                 /* setup dma */
1585                 cfg0 = fimc_read(EXYNOS_MSCTRL);
1586                 cfg0 &= ~EXYNOS_MSCTRL_INPUT_MASK;
1587                 cfg0 |= EXYNOS_MSCTRL_INPUT_MEMORY;
1588                 fimc_write(cfg0, EXYNOS_MSCTRL);
1589                 break;
1590         case IPP_CMD_WB:
1591                 fimc_set_type_ctrl(ctx, FIMC_WB_A);
1592                 fimc_handle_lastend(ctx, true);
1593
1594                 /* setup FIMD */
1595                 ret = fimc_set_camblk_fimd0_wb(ctx);
1596                 if (ret < 0) {
1597                         dev_err(dev, "camblk setup failed.\n");
1598                         return ret;
1599                 }
1600
1601                 set_wb.enable = 1;
1602                 set_wb.refresh = property->refresh_rate;
1603                 exynos_drm_ippnb_send_event(IPP_SET_WRITEBACK, (void *)&set_wb);
1604                 break;
1605         case IPP_CMD_OUTPUT:
1606         default:
1607                 ret = -EINVAL;
1608                 dev_err(dev, "invalid operations.\n");
1609                 return ret;
1610         }
1611
1612         /* Reset status */
1613         fimc_write(0x0, EXYNOS_CISTATUS);
1614
1615         cfg0 = fimc_read(EXYNOS_CIIMGCPT);
1616         cfg0 &= ~EXYNOS_CIIMGCPT_IMGCPTEN_SC;
1617         cfg0 |= EXYNOS_CIIMGCPT_IMGCPTEN_SC;
1618
1619         /* Scaler */
1620         cfg1 = fimc_read(EXYNOS_CISCCTRL);
1621         cfg1 &= ~EXYNOS_CISCCTRL_SCAN_MASK;
1622         cfg1 |= (EXYNOS_CISCCTRL_PROGRESSIVE |
1623                 EXYNOS_CISCCTRL_SCALERSTART);
1624
1625         fimc_write(cfg1, EXYNOS_CISCCTRL);
1626
1627         /* Enable image capture*/
1628         cfg0 |= EXYNOS_CIIMGCPT_IMGCPTEN;
1629         fimc_write(cfg0, EXYNOS_CIIMGCPT);
1630
1631         /* Disable frame end irq */
1632         cfg0 = fimc_read(EXYNOS_CIGCTRL);
1633         cfg0 &= ~EXYNOS_CIGCTRL_IRQ_END_DISABLE;
1634         fimc_write(cfg0, EXYNOS_CIGCTRL);
1635
1636         cfg0 = fimc_read(EXYNOS_CIOCTRL);
1637         cfg0 &= ~EXYNOS_CIOCTRL_WEAVE_MASK;
1638         fimc_write(cfg0, EXYNOS_CIOCTRL);
1639
1640         if (cmd == IPP_CMD_M2M) {
1641                 cfg0 = fimc_read(EXYNOS_MSCTRL);
1642                 cfg0 |= EXYNOS_MSCTRL_ENVID;
1643                 fimc_write(cfg0, EXYNOS_MSCTRL);
1644
1645                 cfg0 = fimc_read(EXYNOS_MSCTRL);
1646                 cfg0 |= EXYNOS_MSCTRL_ENVID;
1647                 fimc_write(cfg0, EXYNOS_MSCTRL);
1648         }
1649
1650         return 0;
1651 }
1652
1653 static void fimc_ippdrv_stop(struct device *dev, enum drm_exynos_ipp_cmd cmd)
1654 {
1655         struct fimc_context *ctx = get_fimc_context(dev);
1656         struct drm_exynos_ipp_set_wb set_wb = {0, 0};
1657         u32 cfg;
1658
1659         DRM_DEBUG_KMS("cmd[%d]\n", cmd);
1660
1661         switch (cmd) {
1662         case IPP_CMD_M2M:
1663                 /* Source clear */
1664                 cfg = fimc_read(EXYNOS_MSCTRL);
1665                 cfg &= ~EXYNOS_MSCTRL_INPUT_MASK;
1666                 cfg &= ~EXYNOS_MSCTRL_ENVID;
1667                 fimc_write(cfg, EXYNOS_MSCTRL);
1668                 break;
1669         case IPP_CMD_WB:
1670                 exynos_drm_ippnb_send_event(IPP_SET_WRITEBACK, (void *)&set_wb);
1671                 break;
1672         case IPP_CMD_OUTPUT:
1673         default:
1674                 dev_err(dev, "invalid operations.\n");
1675                 break;
1676         }
1677
1678         fimc_handle_irq(ctx, false, false, true);
1679
1680         /* reset sequence */
1681         fimc_write(0x0, EXYNOS_CIFCNTSEQ);
1682
1683         /* Scaler disable */
1684         cfg = fimc_read(EXYNOS_CISCCTRL);
1685         cfg &= ~EXYNOS_CISCCTRL_SCALERSTART;
1686         fimc_write(cfg, EXYNOS_CISCCTRL);
1687
1688         /* Disable image capture */
1689         cfg = fimc_read(EXYNOS_CIIMGCPT);
1690         cfg &= ~(EXYNOS_CIIMGCPT_IMGCPTEN_SC | EXYNOS_CIIMGCPT_IMGCPTEN);
1691         fimc_write(cfg, EXYNOS_CIIMGCPT);
1692
1693         /* Enable frame end irq */
1694         cfg = fimc_read(EXYNOS_CIGCTRL);
1695         cfg |= EXYNOS_CIGCTRL_IRQ_END_DISABLE;
1696         fimc_write(cfg, EXYNOS_CIGCTRL);
1697 }
1698
1699 static void fimc_put_clocks(struct fimc_context *ctx)
1700 {
1701         int i;
1702
1703         for (i = 0; i < FIMC_CLKS_MAX; i++) {
1704                 if (IS_ERR(ctx->clocks[i]))
1705                         continue;
1706                 clk_put(ctx->clocks[i]);
1707                 ctx->clocks[i] = ERR_PTR(-EINVAL);
1708         }
1709 }
1710
1711 static int fimc_setup_clocks(struct fimc_context *ctx)
1712 {
1713         struct device *fimc_dev = ctx->ippdrv.dev;
1714         struct device *dev;
1715         int ret, i;
1716
1717         for (i = 0; i < FIMC_CLKS_MAX; i++)
1718                 ctx->clocks[i] = ERR_PTR(-EINVAL);
1719
1720         for (i = 0; i < FIMC_CLKS_MAX; i++) {
1721                 if (i == FIMC_CLK_WB_A || i == FIMC_CLK_WB_B)
1722                         dev = fimc_dev->parent;
1723                 else
1724                         dev = fimc_dev;
1725
1726                 ctx->clocks[i] = clk_get(dev, fimc_clock_names[i]);
1727                 if (IS_ERR(ctx->clocks[i])) {
1728                         if (i >= FIMC_CLK_MUX)
1729                                 break;
1730                         ret = PTR_ERR(ctx->clocks[i]);
1731                         dev_err(fimc_dev, "failed to get clock: %s\n",
1732                                                 fimc_clock_names[i]);
1733                         goto e_clk_free;
1734                 }
1735         }
1736
1737         /* Optional FIMC LCLK parent clock setting */
1738         if (!IS_ERR(ctx->clocks[FIMC_CLK_PARENT])) {
1739                 ret = clk_set_parent(ctx->clocks[FIMC_CLK_MUX],
1740                                      ctx->clocks[FIMC_CLK_PARENT]);
1741                 if (ret < 0) {
1742                         dev_err(fimc_dev, "failed to set parent.\n");
1743                         goto e_clk_free;
1744                 }
1745         }
1746
1747         ret = clk_set_rate(ctx->clocks[FIMC_CLK_LCLK], ctx->clk_frequency);
1748         if (ret < 0)
1749                 goto e_clk_free;
1750
1751         ret = clk_prepare_enable(ctx->clocks[FIMC_CLK_LCLK]);
1752         if (!ret)
1753                 return ret;
1754 e_clk_free:
1755         fimc_put_clocks(ctx);
1756         return ret;
1757 }
1758
1759 static int fimc_parse_dt(struct fimc_context *ctx)
1760 {
1761         struct device_node *node = ctx->ippdrv.dev->of_node;
1762
1763         /* Handle only devices that support the LCD Writeback data path */
1764         if (!of_property_read_bool(node, "samsung,lcd-wb"))
1765                 return -ENODEV;
1766
1767         if (of_property_read_u32(node, "clock-frequency",
1768                                         &ctx->clk_frequency))
1769                 ctx->clk_frequency = FIMC_DEFAULT_LCLK_FREQUENCY;
1770
1771         ctx->id = of_alias_get_id(node, "fimc");
1772
1773         if (ctx->id < 0) {
1774                 dev_err(ctx->ippdrv.dev, "failed to get node alias id.\n");
1775                 return -EINVAL;
1776         }
1777
1778         return 0;
1779 }
1780
1781 static int fimc_probe(struct platform_device *pdev)
1782 {
1783         struct device *dev = &pdev->dev;
1784         struct fimc_context *ctx;
1785         struct resource *res;
1786         struct exynos_drm_ippdrv *ippdrv;
1787         int ret;
1788
1789         if (!dev->of_node) {
1790                 dev_err(dev, "device tree node not found.\n");
1791                 return -ENODEV;
1792         }
1793
1794         ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
1795         if (!ctx)
1796                 return -ENOMEM;
1797
1798         ctx->ippdrv.dev = dev;
1799
1800         ret = fimc_parse_dt(ctx);
1801         if (ret < 0)
1802                 return ret;
1803
1804         ctx->sysreg = syscon_regmap_lookup_by_phandle(dev->of_node,
1805                                                 "samsung,sysreg");
1806         if (IS_ERR(ctx->sysreg)) {
1807                 dev_err(dev, "syscon regmap lookup failed.\n");
1808                 return PTR_ERR(ctx->sysreg);
1809         }
1810
1811         /* resource memory */
1812         ctx->regs_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
1813         ctx->regs = devm_ioremap_resource(dev, ctx->regs_res);
1814         if (IS_ERR(ctx->regs))
1815                 return PTR_ERR(ctx->regs);
1816
1817         /* resource irq */
1818         res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
1819         if (!res) {
1820                 dev_err(dev, "failed to request irq resource.\n");
1821                 return -ENOENT;
1822         }
1823
1824         ctx->irq = res->start;
1825         ret = devm_request_threaded_irq(dev, ctx->irq, NULL, fimc_irq_handler,
1826                 IRQF_ONESHOT, "drm_fimc", ctx);
1827         if (ret < 0) {
1828                 dev_err(dev, "failed to request irq.\n");
1829                 return ret;
1830         }
1831
1832         ret = fimc_setup_clocks(ctx);
1833         if (ret < 0)
1834                 return ret;
1835
1836         ippdrv = &ctx->ippdrv;
1837         ippdrv->ops[EXYNOS_DRM_OPS_SRC] = &fimc_src_ops;
1838         ippdrv->ops[EXYNOS_DRM_OPS_DST] = &fimc_dst_ops;
1839         ippdrv->check_property = fimc_ippdrv_check_property;
1840         ippdrv->reset = fimc_ippdrv_reset;
1841         ippdrv->start = fimc_ippdrv_start;
1842         ippdrv->stop = fimc_ippdrv_stop;
1843         ret = fimc_init_prop_list(ippdrv);
1844         if (ret < 0) {
1845                 dev_err(dev, "failed to init property list.\n");
1846                 goto err_put_clk;
1847         }
1848
1849         DRM_DEBUG_KMS("id[%d]ippdrv[0x%x]\n", ctx->id, (int)ippdrv);
1850
1851         mutex_init(&ctx->lock);
1852         platform_set_drvdata(pdev, ctx);
1853
1854         pm_runtime_set_active(dev);
1855         pm_runtime_enable(dev);
1856
1857         ret = exynos_drm_ippdrv_register(ippdrv);
1858         if (ret < 0) {
1859                 dev_err(dev, "failed to register drm fimc device.\n");
1860                 goto err_pm_dis;
1861         }
1862
1863         dev_info(dev, "drm fimc registered successfully.\n");
1864
1865         return 0;
1866
1867 err_pm_dis:
1868         pm_runtime_disable(dev);
1869 err_put_clk:
1870         fimc_put_clocks(ctx);
1871
1872         return ret;
1873 }
1874
1875 static int fimc_remove(struct platform_device *pdev)
1876 {
1877         struct device *dev = &pdev->dev;
1878         struct fimc_context *ctx = get_fimc_context(dev);
1879         struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
1880
1881         exynos_drm_ippdrv_unregister(ippdrv);
1882         mutex_destroy(&ctx->lock);
1883
1884         fimc_put_clocks(ctx);
1885         pm_runtime_set_suspended(dev);
1886         pm_runtime_disable(dev);
1887
1888         return 0;
1889 }
1890
1891 #ifdef CONFIG_PM_SLEEP
1892 static int fimc_suspend(struct device *dev)
1893 {
1894         struct fimc_context *ctx = get_fimc_context(dev);
1895
1896         DRM_DEBUG_KMS("id[%d]\n", ctx->id);
1897
1898         if (pm_runtime_suspended(dev))
1899                 return 0;
1900
1901         return fimc_clk_ctrl(ctx, false);
1902 }
1903
1904 static int fimc_resume(struct device *dev)
1905 {
1906         struct fimc_context *ctx = get_fimc_context(dev);
1907
1908         DRM_DEBUG_KMS("id[%d]\n", ctx->id);
1909
1910         if (!pm_runtime_suspended(dev))
1911                 return fimc_clk_ctrl(ctx, true);
1912
1913         return 0;
1914 }
1915 #endif
1916
1917 #ifdef CONFIG_PM_RUNTIME
1918 static int fimc_runtime_suspend(struct device *dev)
1919 {
1920         struct fimc_context *ctx = get_fimc_context(dev);
1921
1922         DRM_DEBUG_KMS("id[%d]\n", ctx->id);
1923
1924         return  fimc_clk_ctrl(ctx, false);
1925 }
1926
1927 static int fimc_runtime_resume(struct device *dev)
1928 {
1929         struct fimc_context *ctx = get_fimc_context(dev);
1930
1931         DRM_DEBUG_KMS("id[%d]\n", ctx->id);
1932
1933         return  fimc_clk_ctrl(ctx, true);
1934 }
1935 #endif
1936
1937 static const struct dev_pm_ops fimc_pm_ops = {
1938         SET_SYSTEM_SLEEP_PM_OPS(fimc_suspend, fimc_resume)
1939         SET_RUNTIME_PM_OPS(fimc_runtime_suspend, fimc_runtime_resume, NULL)
1940 };
1941
1942 static const struct of_device_id fimc_of_match[] = {
1943         { .compatible = "samsung,exynos4210-fimc" },
1944         { .compatible = "samsung,exynos4212-fimc" },
1945         { },
1946 };
1947
1948 struct platform_driver fimc_driver = {
1949         .probe          = fimc_probe,
1950         .remove         = fimc_remove,
1951         .driver         = {
1952                 .of_match_table = fimc_of_match,
1953                 .name   = "exynos-drm-fimc",
1954                 .owner  = THIS_MODULE,
1955                 .pm     = &fimc_pm_ops,
1956         },
1957 };
1958