+/*
+ * drivers/video/rockchip/lcdc/rk3036_lcdc.c
+ *
+ * Copyright (C) 2014 ROCKCHIP, Inc.
+ * Author:zhengyang<zhengyang@rock-chips.com>
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <asm/div64.h>
+#include <asm/uaccess.h>
+#include <linux/rockchip/cpu.h>
+#include <linux/rockchip/iomap.h>
+#include <linux/rockchip/grf.h>
+#include <linux/rockchip/common.h>
+#include <dt-bindings/clock/rk_system_status.h>
+
+#include "rk3036_lcdc.h"
+
+static int dbg_thresd;
+module_param(dbg_thresd, int, S_IRUGO | S_IWUSR);
+
+#define DBG(level, x...) do { \
+ if (unlikely(dbg_thresd >= level)) \
+ printk(KERN_INFO x); } while (0)
+
+static struct rk_lcdc_win lcdc_win[] = {
+ [0] = {
+ .name = "win0",
+ .id = 0,
+ .support_3d = false,
+ },
+ [1] = {
+ .name = "win1",
+ .id = 1,
+ .support_3d = false,
+ },
+ [2] = {
+ .name = "hwc",
+ .id = 2,
+ .support_3d = false,
+ },
+};
+
+static void layer_enable(struct lcdc_device *lcdc_dev, unsigned int win_id, bool open);
+
+static irqreturn_t rk3036_lcdc_isr(int irq, void *dev_id)
+{
+ struct lcdc_device *lcdc_dev =
+ (struct lcdc_device *)dev_id;
+ ktime_t timestamp = ktime_get();
+ u32 int_reg = lcdc_readl(lcdc_dev, INT_STATUS);
+
+ if (int_reg & m_FS_INT_STA) {
+ timestamp = ktime_get();
+ lcdc_msk_reg(lcdc_dev, INT_STATUS, m_FS_INT_CLEAR,
+ v_FS_INT_CLEAR(1));
+ //if (lcdc_dev->driver.wait_fs) {
+ if (0) {
+ spin_lock(&(lcdc_dev->driver.cpl_lock));
+ complete(&(lcdc_dev->driver.frame_done));
+ spin_unlock(&(lcdc_dev->driver.cpl_lock));
+ }
+ lcdc_dev->driver.vsync_info.timestamp = timestamp;
+ wake_up_interruptible_all(&lcdc_dev->driver.vsync_info.wait);
+
+ } else if (int_reg & m_LF_INT_STA) {
+ lcdc_msk_reg(lcdc_dev, INT_STATUS, m_LF_INT_CLEAR,
+ v_LF_INT_CLEAR(1));
+ }
+ return IRQ_HANDLED;
+}
+
+static int rk3036_lcdc_clk_enable(struct lcdc_device *lcdc_dev)
+{
+#ifdef CONFIG_RK_FPGA
+ lcdc_dev->clk_on = 1;
+ return 0;
+#endif
+ if (!lcdc_dev->clk_on) {
+ clk_prepare_enable(lcdc_dev->hclk);
+ clk_prepare_enable(lcdc_dev->dclk);
+ clk_prepare_enable(lcdc_dev->aclk);
+// clk_prepare_enable(lcdc_dev->pd);
+ spin_lock(&lcdc_dev->reg_lock);
+ lcdc_dev->clk_on = 1;
+ spin_unlock(&lcdc_dev->reg_lock);
+ }
+
+ return 0;
+}
+
+static int rk3036_lcdc_clk_disable(struct lcdc_device *lcdc_dev)
+{
+#ifdef CONFIG_RK_FPGA
+ lcdc_dev->clk_on = 0;
+ return 0;
+#endif
+ if (lcdc_dev->clk_on) {
+ spin_lock(&lcdc_dev->reg_lock);
+ lcdc_dev->clk_on = 0;
+ spin_unlock(&lcdc_dev->reg_lock);
+ mdelay(25);
+ clk_disable_unprepare(lcdc_dev->dclk);
+ clk_disable_unprepare(lcdc_dev->hclk);
+ clk_disable_unprepare(lcdc_dev->aclk);
+// clk_disable_unprepare(lcdc_dev->pd);
+ }
+
+ return 0;
+}
+
+static int rk3036_lcdc_enable_irq(struct rk_lcdc_driver *dev_drv)
+{
+ u32 mask, val;
+ struct lcdc_device *lcdc_dev = container_of(dev_drv,
+ struct lcdc_device, driver);
+ mask = m_FS_INT_CLEAR |m_FS_INT_EN;
+ val = v_FS_INT_CLEAR(1) | v_FS_INT_EN(1);
+ lcdc_msk_reg(lcdc_dev, INT_STATUS, mask, val);
+ return 0;
+}
+
+static int rk3036_lcdc_disable_irq(struct lcdc_device *lcdc_dev)
+{
+ u32 mask, val;
+ spin_lock(&lcdc_dev->reg_lock);
+ if (likely(lcdc_dev->clk_on)) {
+ mask = m_FS_INT_CLEAR |m_FS_INT_EN;
+ val = v_FS_INT_CLEAR(0) | v_FS_INT_EN(0);
+ lcdc_msk_reg(lcdc_dev, INT_STATUS, mask, val);
+ spin_unlock(&lcdc_dev->reg_lock);
+ } else {
+ spin_unlock(&lcdc_dev->reg_lock);
+ }
+ mdelay(1);
+ return 0;
+}
+
+static void rk_lcdc_read_reg_defalut_cfg(struct lcdc_device
+ *lcdc_dev)
+{
+ int reg = 0;
+ u32 value = 0;
+
+ spin_lock(&lcdc_dev->reg_lock);
+ for (reg = 0; reg < 0xdc; reg += 4) {
+ value = lcdc_readl(lcdc_dev, reg);
+ }
+ spin_unlock(&lcdc_dev->reg_lock);
+}
+
+/********do basic init*********/
+static int rk3036_lcdc_pre_init(struct rk_lcdc_driver *dev_drv)
+{
+ u32 mask,val;
+ struct lcdc_device *lcdc_dev = container_of(dev_drv,
+ struct
+ lcdc_device,
+ driver);
+ if (lcdc_dev->pre_init)
+ return 0;
+
+ lcdc_dev->hclk = devm_clk_get(lcdc_dev->dev, "hclk_lcdc");
+ lcdc_dev->aclk = devm_clk_get(lcdc_dev->dev, "aclk_lcdc");
+ lcdc_dev->dclk = devm_clk_get(lcdc_dev->dev, "dclk_lcdc");
+// lcdc_dev->pd = devm_clk_get(lcdc_dev->dev, "pd_lcdc");
+
+ if (/*IS_ERR(lcdc_dev->pd) ||*/ (IS_ERR(lcdc_dev->aclk)) ||
+ (IS_ERR(lcdc_dev->dclk)) || (IS_ERR(lcdc_dev->hclk))) {
+ dev_err(lcdc_dev->dev, "failed to get lcdc%d clk source\n",
+ lcdc_dev->id);
+ }
+
+ rk_disp_pwr_enable(dev_drv);
+ rk3036_lcdc_clk_enable(lcdc_dev);
+
+ /*backup reg config at uboot*/
+ rk_lcdc_read_reg_defalut_cfg(lcdc_dev);
+
+ mask = m_AUTO_GATING_EN;
+ val = v_AUTO_GATING_EN(0);
+ lcdc_msk_reg(lcdc_dev, SYS_CTRL, mask,val);
+ lcdc_cfg_done(lcdc_dev);
+ if (dev_drv->iommu_enabled) /*disable win0 to workaround iommu pagefault*/
+ layer_enable(lcdc_dev, 0, 0);
+ lcdc_dev->pre_init = true;
+
+ return 0;
+}
+
+static int rk3036_lcdc_alpha_cfg(struct lcdc_device *lcdc_dev)
+{
+ return 0;
+}
+
+static int rk3036_lcdc_reg_update(struct rk_lcdc_driver *dev_drv)
+{
+ struct lcdc_device *lcdc_dev =
+ container_of(dev_drv, struct lcdc_device, driver);
+ struct rk_lcdc_win *win0 = lcdc_dev->driver.win[0];
+ struct rk_lcdc_win *win1 = lcdc_dev->driver.win[1];
+ int timeout;
+ unsigned long flags;
+ spin_lock(&lcdc_dev->reg_lock);
+ if (likely(lcdc_dev->clk_on)) {
+ lcdc_msk_reg(lcdc_dev, SYS_CTRL, m_LCDC_STANDBY,
+ v_LCDC_STANDBY(lcdc_dev->standby));
+ lcdc_msk_reg(lcdc_dev, SYS_CTRL,
+ m_WIN0_EN | m_WIN1_EN | m_WIN0_RB_SWAP |
+ m_WIN1_RB_SWAP,
+ v_WIN0_EN(win0->state) | v_WIN1_EN(win1->state) |
+ v_WIN0_RB_SWAP(win0->swap_rb) |
+ v_WIN1_RB_SWAP(win1->swap_rb));
+ lcdc_writel(lcdc_dev, WIN0_SCL_FACTOR_YRGB,
+ v_X_SCL_FACTOR(win0->scale_yrgb_x) |
+ v_Y_SCL_FACTOR(win0->scale_yrgb_y));
+ lcdc_writel(lcdc_dev, WIN0_SCL_FACTOR_CBR,
+ v_X_SCL_FACTOR(win0->scale_cbcr_x) |
+ v_Y_SCL_FACTOR(win0->scale_cbcr_y));
+ lcdc_msk_reg(lcdc_dev, SYS_CTRL, m_WIN0_FORMAT, v_WIN0_FORMAT(win0->fmt_cfg));
+ lcdc_writel(lcdc_dev, WIN0_ACT_INFO, v_ACT_WIDTH(win0->area[0].xact) |
+ v_ACT_HEIGHT(win0->area[0].yact));
+ lcdc_writel(lcdc_dev, WIN0_DSP_ST, v_DSP_STX(win0->area[0].dsp_stx) |
+ v_DSP_STY(win0->area[0].dsp_sty));
+ lcdc_writel(lcdc_dev, WIN0_DSP_INFO, v_DSP_WIDTH(win0->area[0].xsize) |
+ v_DSP_HEIGHT(win0->area[0].ysize));
+ lcdc_msk_reg(lcdc_dev, WIN0_VIR, m_YRGB_VIR | m_CBBR_VIR,
+ v_YRGB_VIR(win0->area[0].y_vir_stride) | v_YRGB_VIR(win0->area[0].uv_vir_stride));
+ lcdc_writel(lcdc_dev, WIN0_YRGB_MST, win0->area[0].y_addr);
+ lcdc_writel(lcdc_dev, WIN0_CBR_MST, win0->area[0].uv_addr);
+ lcdc_writel(lcdc_dev, WIN1_DSP_INFO, v_DSP_WIDTH(win1->area[0].xsize) |
+ v_DSP_HEIGHT(win1->area[0].ysize));
+ lcdc_writel(lcdc_dev, WIN1_DSP_ST, v_DSP_STX(win1->area[0].dsp_stx) |
+ v_DSP_STY(win1->area[0].dsp_sty));
+ lcdc_msk_reg(lcdc_dev, WIN1_VIR, m_YRGB_VIR, v_YRGB_VIR(win1->area[0].y_vir_stride));
+ lcdc_msk_reg(lcdc_dev, SYS_CTRL, m_WIN1_FORMAT,
+ v_WIN1_FORMAT(win1->fmt_cfg));
+ lcdc_writel(lcdc_dev, WIN1_MST, win1->area[0].y_addr);
+ rk3036_lcdc_alpha_cfg(lcdc_dev);
+ lcdc_cfg_done(lcdc_dev);
+
+ }
+ spin_unlock(&lcdc_dev->reg_lock);
+ //if (dev_drv->wait_fs) {
+ if (0) {
+ spin_lock_irqsave(&dev_drv->cpl_lock, flags);
+ init_completion(&dev_drv->frame_done);
+ spin_unlock_irqrestore(&dev_drv->cpl_lock, flags);
+ timeout = wait_for_completion_timeout(&dev_drv->frame_done,
+ msecs_to_jiffies
+ (dev_drv->cur_screen->ft +
+ 5));
+ if (!timeout && (!dev_drv->frame_done.done)) {
+ dev_warn(lcdc_dev->dev, "wait for new frame start time out!\n");
+ return -ETIMEDOUT;
+ }
+ }
+ DBG(2, "%s for lcdc%d\n", __func__, lcdc_dev->id);
+ return 0;
+
+}
+
+static void rk3036_lcdc_reg_restore(struct lcdc_device *lcdc_dev)
+{
+ memcpy((u8 *) lcdc_dev->regs, (u8 *) lcdc_dev->regsbak, 0xdc);
+}
+
+static void rk3036_lcdc_mmu_en(struct rk_lcdc_driver *dev_drv)
+{
+ u32 mask,val;
+ struct lcdc_device *lcdc_dev =
+ container_of(dev_drv, struct lcdc_device, driver);
+ spin_lock(&lcdc_dev->reg_lock);
+ if (likely(lcdc_dev->clk_on)) {
+ mask = m_MMU_EN | m_AXI_MAX_OUTSTANDING_EN | m_AXI_OUTSTANDING_MAX_NUM;;
+ val = v_MMU_EN(1) | v_AXI_OUTSTANDING_MAX_NUM(31) | v_AXI_MAX_OUTSTANDING_EN(1);
+ lcdc_msk_reg(lcdc_dev, AXI_BUS_CTRL, mask, val);
+ }
+ spin_unlock(&lcdc_dev->reg_lock);
+}
+
+static int rk3036_lcdc_set_dclk(struct rk_lcdc_driver *dev_drv)
+{
+#ifdef CONFIG_RK_FPGA
+ return 0;
+#endif
+ int ret,fps;
+ struct lcdc_device *lcdc_dev =
+ container_of(dev_drv, struct lcdc_device, driver);
+ struct rk_screen *screen = dev_drv->cur_screen;
+
+ ret = clk_set_rate(lcdc_dev->dclk, screen->mode.pixclock);
+ if (ret)
+ dev_err(dev_drv->dev, "set lcdc%d dclk failed\n", lcdc_dev->id);
+ lcdc_dev->pixclock =
+ div_u64(1000000000000llu, clk_get_rate(lcdc_dev->dclk));
+ lcdc_dev->driver.pixclock = lcdc_dev->pixclock;
+
+ fps = rk_fb_calc_fps(screen, lcdc_dev->pixclock);
+ screen->ft = 1000 / fps;
+ dev_info(lcdc_dev->dev, "%s: dclk:%lu>>fps:%d ",
+ lcdc_dev->driver.name, clk_get_rate(lcdc_dev->dclk), fps);
+ return 0;
+
+}
+
+static int rk3036_load_screen(struct rk_lcdc_driver *dev_drv, bool initscreen)
+{
+ int ret = -EINVAL;
+ int fps;
+ u16 face = 0;
+ struct lcdc_device *lcdc_dev = container_of(dev_drv,
+ struct lcdc_device, driver);
+ struct rk_screen *screen = dev_drv->cur_screen;
+ u16 right_margin = screen->mode.right_margin;
+ u16 left_margin = screen->mode.left_margin;
+ u16 lower_margin = screen->mode.lower_margin;
+ u16 upper_margin = screen->mode.upper_margin;
+ u16 x_res = screen->mode.xres;
+ u16 y_res = screen->mode.yres;
+ u32 mask, val;
+
+ spin_lock(&lcdc_dev->reg_lock);
+ if (likely(lcdc_dev->clk_on)) {
+ switch (screen->type) {
+ case SCREEN_HDMI:
+ mask = m_HDMI_DCLK_EN;
+ val = v_HDMI_DCLK_EN(1);
+ if(screen->pixelrepeat) {
+ mask |= m_CORE_CLK_DIV_EN;
+ val |= v_CORE_CLK_DIV_EN(1);
+ }
+ lcdc_msk_reg(lcdc_dev, AXI_BUS_CTRL, mask, val);
+ break;
+ case SCREEN_TVOUT:
+ mask = m_TVE_DAC_DCLK_EN;
+ val = v_TVE_DAC_DCLK_EN(1);
+ if(screen->pixelrepeat) {
+ mask |= m_CORE_CLK_DIV_EN;
+ val |= v_CORE_CLK_DIV_EN(1);
+ }
+ lcdc_msk_reg(lcdc_dev, AXI_BUS_CTRL, mask, val);
+ break;
+ default:
+ dev_err(lcdc_dev->dev, "un supported interface!\n");
+ break;
+ }
+
+ mask = m_DSP_OUT_FORMAT | m_HSYNC_POL | m_VSYNC_POL |
+ m_DEN_POL | m_DCLK_POL;
+ val = v_DSP_OUT_FORMAT(face) | v_HSYNC_POL(screen->pin_hsync) |
+ v_VSYNC_POL(screen->pin_vsync) | v_DEN_POL(screen->pin_den) |
+ v_DCLK_POL(screen->pin_dclk);
+ lcdc_msk_reg(lcdc_dev, DSP_CTRL0, mask, val);
+
+ mask = m_BG_COLOR | m_DSP_BG_SWAP | m_DSP_RB_SWAP |
+ m_DSP_RG_SWAP | m_DSP_DELTA_SWAP |
+ m_DSP_DUMMY_SWAP | m_BLANK_EN;
+
+ val = v_BG_COLOR(0x000000) | v_DSP_BG_SWAP(screen->swap_gb) |
+ v_DSP_RB_SWAP(screen->swap_rb) | v_DSP_RG_SWAP(screen->
+ swap_rg) |
+ v_DSP_DELTA_SWAP(screen->
+ swap_delta) | v_DSP_DUMMY_SWAP(screen->
+ swap_dumy) |
+ v_BLANK_EN(0) | v_BLACK_EN(0);
+ lcdc_msk_reg(lcdc_dev, DSP_CTRL1, mask, val);
+ val =
+ v_HSYNC(screen->mode.hsync_len) | v_HORPRD(screen->mode.
+ hsync_len +
+ left_margin +
+ x_res +
+ right_margin);
+ lcdc_writel(lcdc_dev, DSP_HTOTAL_HS_END, val);
+ val = v_HAEP(screen->mode.hsync_len + left_margin + x_res) |
+ v_HASP(screen->mode.hsync_len + left_margin);
+ lcdc_writel(lcdc_dev, DSP_HACT_ST_END, val);
+
+ val =
+ v_VSYNC(screen->mode.vsync_len) | v_VERPRD(screen->mode.
+ vsync_len +
+ upper_margin +
+ y_res +
+ lower_margin);
+ lcdc_writel(lcdc_dev, DSP_VTOTAL_VS_END, val);
+
+ val = v_VAEP(screen->mode.vsync_len + upper_margin + y_res) |
+ v_VASP(screen->mode.vsync_len + screen->mode.upper_margin);
+ lcdc_writel(lcdc_dev, DSP_VACT_ST_END, val);
+ }
+ spin_unlock(&lcdc_dev->reg_lock);
+
+ ret = clk_set_rate(lcdc_dev->dclk, screen->mode.pixclock);
+ if (ret)
+ dev_err(dev_drv->dev, "set lcdc%d dclk failed\n", lcdc_dev->id);
+ lcdc_dev->pixclock =
+ div_u64(1000000000000llu, clk_get_rate(lcdc_dev->dclk));
+ lcdc_dev->driver.pixclock = lcdc_dev->pixclock;
+
+ fps = rk_fb_calc_fps(screen, lcdc_dev->pixclock);
+ screen->ft = 1000 / fps;
+ dev_info(lcdc_dev->dev, "%s: dclk:%lu>>fps:%d ",
+ lcdc_dev->driver.name, clk_get_rate(lcdc_dev->dclk), fps);
+ if (dev_drv->trsm_ops && dev_drv->trsm_ops->enable)
+ dev_drv->trsm_ops->enable();
+ if (screen->init)
+ screen->init();
+
+ return 0;
+}
+
+static void layer_enable(struct lcdc_device *lcdc_dev, unsigned int win_id, bool open)
+{
+ spin_lock(&lcdc_dev->reg_lock);
+ if (likely(lcdc_dev->clk_on)) {
+ if (open) {
+ if (!lcdc_dev->atv_layer_cnt) {
+ dev_info(lcdc_dev->dev, "wakeup from standby!\n");
+ lcdc_dev->standby = 0;
+ }
+ lcdc_dev->atv_layer_cnt++;
+ } else if ((lcdc_dev->atv_layer_cnt > 0) && (!open)) {
+ lcdc_dev->atv_layer_cnt--;
+ }
+ lcdc_dev->driver.win[win_id]->state = open;
+ if(win_id == 0)
+ lcdc_msk_reg(lcdc_dev, SYS_CTRL, m_WIN0_EN, v_WIN0_EN(open));
+ else if(win_id == 1)
+ lcdc_msk_reg(lcdc_dev, SYS_CTRL, m_WIN1_EN, v_WIN1_EN(open));
+ else
+ lcdc_msk_reg(lcdc_dev, SYS_CTRL, m_HWC_EN, v_HWC_EN(open));
+ /*if no layer used,disable lcdc*/
+ if (!lcdc_dev->atv_layer_cnt) {
+ dev_info(lcdc_dev->dev, "no layer is used,go to standby!\n");
+ lcdc_dev->standby = 1;
+ }
+ }
+ spin_unlock(&lcdc_dev->reg_lock);
+}
+
+static int rk3036_lcdc_open(struct rk_lcdc_driver *dev_drv, int win_id,
+ bool open)
+{
+ struct lcdc_device *lcdc_dev = container_of(dev_drv,
+ struct lcdc_device, driver);
+
+ /*enable clk,when first layer open */
+ if ((open) && (!lcdc_dev->atv_layer_cnt)) {
+ rk3036_lcdc_pre_init(dev_drv);
+ rk3036_lcdc_clk_enable(lcdc_dev);
+ rk3036_lcdc_reg_restore(lcdc_dev);
+ if (dev_drv->iommu_enabled)
+ rk3036_lcdc_mmu_en(dev_drv);
+ if ((support_uboot_display()&&(lcdc_dev->prop == PRMRY))) {
+ rk3036_lcdc_set_dclk(dev_drv);
+ rk3036_lcdc_enable_irq(dev_drv);
+ } else {
+ rk3036_load_screen(dev_drv, 1);
+ }
+ }
+ if(win_id < ARRAY_SIZE(lcdc_win)) {
+ layer_enable(lcdc_dev, win_id, open);
+ }
+ else
+ dev_err(lcdc_dev->dev, "invalid win id:%d\n", win_id);
+
+ /*when all layer closed,disable clk */
+ if ((!open) && (!lcdc_dev->atv_layer_cnt)) {
+ rk3036_lcdc_disable_irq(lcdc_dev);
+ rk3036_lcdc_reg_update(dev_drv);
+ rk3036_lcdc_clk_disable(lcdc_dev);
+ }
+
+ return 0;
+}
+
+static int rk3036_lcdc_set_par(struct rk_lcdc_driver *dev_drv,int win_id)
+{
+ struct lcdc_device *lcdc_dev = container_of(dev_drv,
+ struct lcdc_device, driver);
+ struct rk_screen *screen = dev_drv->cur_screen;
+ struct rk_lcdc_win *win = NULL;
+ char fmt[9] = "NULL";
+
+ if (!screen) {
+ dev_err(dev_drv->dev, "screen is null!\n");
+ return -ENOENT;
+ }
+
+ if (win_id == 0) {
+ win = dev_drv->win[0];
+ } else if (win_id == 1) {
+ win = dev_drv->win[1];
+ } else {
+ dev_err(dev_drv->dev, "un supported win number:%d\n", win_id);
+ return -EINVAL;
+ }
+
+ spin_lock(&lcdc_dev->reg_lock);
+
+ win->area[0].dsp_stx = win->area[0].xpos + screen->mode.left_margin + screen->mode.hsync_len;
+ win->area[0].dsp_sty = win->area[0].ypos + screen->mode.upper_margin + screen->mode.vsync_len;
+ win->scale_yrgb_x = CalScale(win->area[0].xact, win->area[0].xsize);
+ win->scale_yrgb_y = CalScale(win->area[0].yact, win->area[0].ysize);
+ switch (win->format) {
+ case ARGB888:
+ win->fmt_cfg = VOP_FORMAT_ARGB888;
+ win->swap_rb = 0;
+ break;
+ case XBGR888:
+ win->fmt_cfg = VOP_FORMAT_ARGB888;
+ win->swap_rb = 1;
+ break;
+ case ABGR888:
+ win->fmt_cfg = VOP_FORMAT_ARGB888;
+ win->swap_rb = 1;
+ break;
+ case RGB888:
+ win->fmt_cfg = VOP_FORMAT_RGB888;
+ win->swap_rb = 0;
+ break;
+ case RGB565:
+ win->fmt_cfg = VOP_FORMAT_RGB565;
+ win->swap_rb = 0;
+ break;
+ case YUV444:
+ if(win_id == 0) {
+ win->fmt_cfg = VOP_FORMAT_YCBCR444;
+ win->scale_cbcr_x = CalScale(win->area[0].xact, win->area[0].xsize);
+ win->scale_cbcr_y = CalScale(win->area[0].yact, win->area[0].ysize);
+ win->swap_rb = 0;
+ } else {
+ dev_err(lcdc_dev->driver.dev, "%s:un supported format!\n",
+ __func__);
+ }
+ break;
+ case YUV422:
+ if(win_id == 0) {
+ win->fmt_cfg = VOP_FORMAT_YCBCR422;
+ win->scale_cbcr_x = CalScale((win->area[0].xact / 2), win->area[0].xsize);
+ win->scale_cbcr_y = CalScale(win->area[0].yact, win->area[0].ysize);
+ win->swap_rb = 0;
+ } else {
+ dev_err(lcdc_dev->driver.dev, "%s:un supported format!\n",
+ __func__);
+ }
+ break;
+ case YUV420:
+ if(win_id == 0) {
+ win->fmt_cfg = VOP_FORMAT_YCBCR420;
+ win->scale_cbcr_x = CalScale(win->area[0].xact / 2, win->area[0].xsize);
+ win->scale_cbcr_y = CalScale(win->area[0].yact / 2, win->area[0].ysize);
+ win->swap_rb = 0;
+ }
+ else {
+ dev_err(lcdc_dev->driver.dev, "%s:un supported format!\n",
+ __func__);
+ }
+ break;
+ default:
+ dev_err(lcdc_dev->driver.dev, "%s:un supported format!\n",
+ __func__);
+ break;
+ }
+ spin_unlock(&lcdc_dev->reg_lock);
+
+ if (lcdc_dev->clk_on) {
+ rk3036_lcdc_alpha_cfg(lcdc_dev);
+ }
+ DBG(1, "lcdc%d>>%s\n>>format:%s>>>xact:%d>>yact:%d>>xsize:%d>>ysize:%d\n"
+ ">>xvir:%d>>yvir:%d>>xpos:%d>>ypos:%d>>\n", lcdc_dev->id,
+ __func__, get_format_string(win->format, fmt), win->area[0].xact,
+ win->area[0].yact, win->area[0].xsize, win->area[0].ysize, win->area[0].xvir,
+ win->area[0].yvir, win->area[0].xpos, win->area[0].ypos);
+ return 0;
+}
+
+static int rk3036_lcdc_pan_display(struct rk_lcdc_driver *dev_drv, int win_id)
+{
+ struct lcdc_device *lcdc_dev = container_of(dev_drv,
+ struct lcdc_device, driver);
+ struct rk_lcdc_win *win = NULL;
+ struct rk_screen *screen = dev_drv->cur_screen;
+
+ if (!screen) {
+ dev_err(dev_drv->dev,"screen is null!\n");
+ return -ENOENT;
+ }
+
+ if (win_id == 0) {
+ win = dev_drv->win[0];
+ } else if(win_id==1) {
+ win = dev_drv->win[1];
+ } else {
+ dev_err(dev_drv->dev,"invalid win number:%d!\n", win_id);
+ return -EINVAL;
+ }
+
+
+ spin_lock(&lcdc_dev->reg_lock);
+ if (likely(lcdc_dev->clk_on)) {
+ win->area[0].y_addr = win->area[0].smem_start+win->area[0].y_offset;
+ win->area[0].uv_addr = win->area[0].cbr_start + win->area[0].c_offset;
+ if(win_id == 0) {
+ lcdc_writel(lcdc_dev, WIN0_YRGB_MST, win->area[0].y_addr);
+ lcdc_writel(lcdc_dev, WIN0_CBR_MST, win->area[0].uv_addr);
+ } else
+ lcdc_writel(lcdc_dev, WIN1_MST, win->area[0].y_addr);
+ /*lcdc_cfg_done(lcdc_dev);*/
+ }
+ spin_unlock(&lcdc_dev->reg_lock);
+
+ DBG(2, "lcdc%d>>%s:y_addr:0x%x>>uv_addr:0x%x>>offset:%d\n",
+ lcdc_dev->id, __func__, win->area[0].y_addr, win->area[0].uv_addr,win->area[0].y_offset);
+ /*this is the first frame of the system ,enable frame start interrupt*/
+ if ((dev_drv->first_frame)) {
+ dev_drv->first_frame = 0;
+ rk3036_lcdc_enable_irq(dev_drv);
+
+ }
+
+ return 0;
+}
+
+static int rk3036_lcdc_ioctl(struct rk_lcdc_driver *dev_drv, unsigned int cmd,
+ unsigned long arg, int win_id)
+{
+ struct lcdc_device *lcdc_dev = container_of(dev_drv,
+ struct lcdc_device, driver);
+ u32 panel_size[2];
+ void __user *argp = (void __user *)arg;
+ struct color_key_cfg clr_key_cfg;
+
+ switch (cmd) {
+ case RK_FBIOGET_PANEL_SIZE:
+ panel_size[0] = lcdc_dev->screen->mode.xres;
+ panel_size[1] = lcdc_dev->screen->mode.yres;
+ if (copy_to_user(argp, panel_size, 8))
+ return -EFAULT;
+ break;
+ case RK_FBIOPUT_COLOR_KEY_CFG:
+ if (copy_from_user(&clr_key_cfg, argp,
+ sizeof(struct color_key_cfg)))
+ return -EFAULT;
+ lcdc_writel(lcdc_dev, WIN0_COLOR_KEY,
+ clr_key_cfg.win0_color_key_cfg);
+ lcdc_writel(lcdc_dev, WIN1_COLOR_KEY,
+ clr_key_cfg.win1_color_key_cfg);
+ break;
+
+ default:
+ break;
+ }
+ return 0;
+}
+
+static int rk3036_lcdc_get_win_id(struct rk_lcdc_driver *dev_drv,
+ const char *id)
+{
+ int win_id = 0;
+ mutex_lock(&dev_drv->fb_win_id_mutex);
+ if (!strcmp(id, "fb0"))
+ win_id = dev_drv->fb0_win_id;
+ else if (!strcmp(id, "fb1"))
+ win_id = dev_drv->fb1_win_id;
+ else if (!strcmp(id, "fb2"))
+ win_id = dev_drv->fb2_win_id;
+ mutex_unlock(&dev_drv->fb_win_id_mutex);
+
+ return win_id;
+}
+
+static int rk3036_lcdc_get_win_state(struct rk_lcdc_driver *dev_drv, int win_id)
+{
+ return 0;
+}
+
+static int rk3036_lcdc_ovl_mgr(struct rk_lcdc_driver *dev_drv, int swap,
+ bool set)
+{
+ struct lcdc_device *lcdc_dev =
+ container_of(dev_drv, struct lcdc_device, driver);
+ int ovl;
+ spin_lock(&lcdc_dev->reg_lock);
+ if (lcdc_dev->clk_on) {
+ if (set) {
+ lcdc_msk_reg(lcdc_dev, DSP_CTRL0, m_WIN0_TOP,
+ v_WIN0_TOP(swap));
+ ovl = swap;
+ } else {
+ ovl = lcdc_read_bit(lcdc_dev, DSP_CTRL0, m_WIN0_TOP);
+ }
+ } else {
+ ovl = -EPERM;
+ }
+ spin_unlock(&lcdc_dev->reg_lock);
+
+ return ovl;
+}
+
+static int rk3036_lcdc_early_suspend(struct rk_lcdc_driver *dev_drv)
+{
+
+ struct lcdc_device *lcdc_dev = container_of(dev_drv,
+ struct lcdc_device, driver);
+ if (dev_drv->suspend_flag)
+ return 0;
+ dev_drv->suspend_flag = 1;
+ flush_kthread_worker(&dev_drv->update_regs_worker);
+
+ if (dev_drv->trsm_ops && dev_drv->trsm_ops->disable)
+ dev_drv->trsm_ops->disable();
+ spin_lock(&lcdc_dev->reg_lock);
+ if (likely(lcdc_dev->clk_on)) {
+ lcdc_msk_reg(lcdc_dev, DSP_CTRL1, m_BLANK_EN,
+ v_BLANK_EN(1));
+ lcdc_msk_reg(lcdc_dev, INT_STATUS, m_FS_INT_CLEAR,
+ v_FS_INT_CLEAR(1));
+ lcdc_msk_reg(lcdc_dev, DSP_CTRL1, m_DSP_OUT_ZERO,
+ v_DSP_OUT_ZERO(1));
+ lcdc_msk_reg(lcdc_dev, SYS_CTRL, m_LCDC_STANDBY,
+ v_LCDC_STANDBY(1));
+ lcdc_cfg_done(lcdc_dev);
+ spin_unlock(&lcdc_dev->reg_lock);
+ } else {
+ spin_unlock(&lcdc_dev->reg_lock);
+ return 0;
+ }
+ rk3036_lcdc_clk_disable(lcdc_dev);
+ rk_disp_pwr_disable(dev_drv);
+ return 0;
+}
+
+static int rk3036_lcdc_early_resume(struct rk_lcdc_driver *dev_drv)
+{
+ struct lcdc_device *lcdc_dev =
+ container_of(dev_drv, struct lcdc_device, driver);
+
+ if (!dev_drv->suspend_flag)
+ return 0;
+ rk_disp_pwr_enable(dev_drv);
+ dev_drv->suspend_flag = 0;
+
+ if (lcdc_dev->atv_layer_cnt) {
+ rk3036_lcdc_clk_enable(lcdc_dev);
+ rk3036_lcdc_reg_restore(lcdc_dev);
+
+ spin_lock(&lcdc_dev->reg_lock);
+
+ lcdc_msk_reg(lcdc_dev, DSP_CTRL1, m_DSP_OUT_ZERO,
+ v_DSP_OUT_ZERO(0));
+ lcdc_msk_reg(lcdc_dev, SYS_CTRL, m_LCDC_STANDBY,
+ v_LCDC_STANDBY(0));
+ lcdc_msk_reg(lcdc_dev, DSP_CTRL1, m_BLANK_EN,
+ v_BLANK_EN(0));
+ lcdc_cfg_done(lcdc_dev);
+
+ spin_unlock(&lcdc_dev->reg_lock);
+ }
+
+ if (dev_drv->trsm_ops && dev_drv->trsm_ops->enable)
+ dev_drv->trsm_ops->enable();
+ return 0;
+}
+
+
+static int rk3036_lcdc_blank(struct rk_lcdc_driver *dev_drv,
+ int win_id, int blank_mode)
+{
+ switch (blank_mode) {
+ case FB_BLANK_UNBLANK:
+ rk3036_lcdc_early_resume(dev_drv);
+ break;
+ case FB_BLANK_NORMAL:
+ rk3036_lcdc_early_suspend(dev_drv);
+ break;
+ default:
+ rk3036_lcdc_early_suspend(dev_drv);
+ break;
+ }
+
+ dev_info(dev_drv->dev, "blank mode:%d\n", blank_mode);
+
+ return 0;
+}
+
+static int rk3036_lcdc_cfg_done(struct rk_lcdc_driver *dev_drv)
+{
+ struct lcdc_device *lcdc_dev = container_of(dev_drv,
+ struct lcdc_device, driver);
+ spin_lock(&lcdc_dev->reg_lock);
+ if (lcdc_dev->clk_on)
+ lcdc_cfg_done(lcdc_dev);
+ spin_unlock(&lcdc_dev->reg_lock);
+ return 0;
+}
+
+/*
+ a:[-30~0]:
+ sin_hue = sin(a)*256 +0x100;
+ cos_hue = cos(a)*256;
+ a:[0~30]
+ sin_hue = sin(a)*256;
+ cos_hue = cos(a)*256;
+*/
+static int rk3036_lcdc_get_bcsh_hue(struct rk_lcdc_driver *dev_drv,bcsh_hue_mode mode)
+{
+
+ struct lcdc_device *lcdc_dev =
+ container_of(dev_drv, struct lcdc_device, driver);
+ u32 val;
+
+ spin_lock(&lcdc_dev->reg_lock);
+ if (lcdc_dev->clk_on) {
+ val = lcdc_readl(lcdc_dev, BCSH_H);
+ switch(mode){
+ case H_SIN:
+ val &= m_BCSH_SIN_HUE;
+ break;
+ case H_COS:
+ val &= m_BCSH_COS_HUE;
+ val >>= 16;
+ break;
+ default:
+ break;
+ }
+ }
+ spin_unlock(&lcdc_dev->reg_lock);
+
+ return val;
+}
+
+
+static int rk3036_lcdc_set_bcsh_hue(struct rk_lcdc_driver *dev_drv,int sin_hue, int cos_hue)
+{
+
+ struct lcdc_device *lcdc_dev =
+ container_of(dev_drv, struct lcdc_device, driver);
+ u32 mask, val;
+
+ spin_lock(&lcdc_dev->reg_lock);
+ if (lcdc_dev->clk_on) {
+ mask = m_BCSH_SIN_HUE | m_BCSH_COS_HUE;
+ val = v_BCSH_SIN_HUE(sin_hue) | v_BCSH_COS_HUE(cos_hue);
+ lcdc_msk_reg(lcdc_dev, BCSH_H, mask, val);
+ lcdc_cfg_done(lcdc_dev);
+ }
+ spin_unlock(&lcdc_dev->reg_lock);
+
+ return 0;
+}
+
+static int rk3036_lcdc_set_bcsh_bcs(struct rk_lcdc_driver *dev_drv,bcsh_bcs_mode mode,int value)
+{
+ struct lcdc_device *lcdc_dev =
+ container_of(dev_drv, struct lcdc_device, driver);
+ u32 mask, val;
+
+ spin_lock(&lcdc_dev->reg_lock);
+ if(lcdc_dev->clk_on) {
+ switch (mode) {
+ case BRIGHTNESS:
+ /*from 0 to 255,typical is 128*/
+ if (value < 0x80)
+ value += 0x80;
+ else if (value >= 0x80)
+ value = value - 0x80;
+ mask = m_BCSH_BRIGHTNESS;
+ val = v_BCSH_BRIGHTNESS(value);
+ break;
+ case CONTRAST:
+ /*from 0 to 510,typical is 256*/
+ mask = m_BCSH_CONTRAST;
+ val = v_BCSH_CONTRAST(value);
+ break;
+ case SAT_CON:
+ /*from 0 to 1015,typical is 256*/
+ mask = m_BCSH_SAT_CON;
+ val = v_BCSH_SAT_CON(value);
+ break;
+ default:
+ break;
+ }
+ lcdc_msk_reg(lcdc_dev, BCSH_BCS, mask, val);
+ lcdc_cfg_done(lcdc_dev);
+ }
+ spin_unlock(&lcdc_dev->reg_lock);
+ return val;
+}
+
+static int rk3036_lcdc_get_bcsh_bcs(struct rk_lcdc_driver *dev_drv,bcsh_bcs_mode mode)
+{
+ struct lcdc_device *lcdc_dev =
+ container_of(dev_drv, struct lcdc_device, driver);
+ u32 val;
+
+ spin_lock(&lcdc_dev->reg_lock);
+ if(lcdc_dev->clk_on) {
+ val = lcdc_readl(lcdc_dev, BCSH_BCS);
+ switch (mode) {
+ case BRIGHTNESS:
+ val &= m_BCSH_BRIGHTNESS;
+ if(val > 0x80)
+ val -= 0x80;
+ else
+ val += 0x80;
+ break;
+ case CONTRAST:
+ val &= m_BCSH_CONTRAST;
+ val >>= 8;
+ break;
+ case SAT_CON:
+ val &= m_BCSH_SAT_CON;
+ val >>= 20;
+ break;
+ default:
+ break;
+ }
+ }
+ spin_unlock(&lcdc_dev->reg_lock);
+ return val;
+}
+
+
+static int rk3036_lcdc_open_bcsh(struct rk_lcdc_driver *dev_drv, bool open)
+{
+ struct lcdc_device *lcdc_dev =
+ container_of(dev_drv, struct lcdc_device, driver);
+ u32 mask, val;
+
+ spin_lock(&lcdc_dev->reg_lock);
+ if (lcdc_dev->clk_on) {
+ if (open) {
+ lcdc_writel(lcdc_dev,BCSH_COLOR_BAR,0x1);
+ lcdc_writel(lcdc_dev,BCSH_BCS,0xd0010000);
+ lcdc_writel(lcdc_dev,BCSH_H,0x01000000);
+ } else {
+ mask = m_BCSH_EN;
+ val = v_BCSH_EN(0);
+ lcdc_msk_reg(lcdc_dev, BCSH_COLOR_BAR, mask, val);
+ }
+ lcdc_cfg_done(lcdc_dev);
+ }
+ spin_unlock(&lcdc_dev->reg_lock);
+ return 0;
+}
+
+static int rk3036_fb_win_remap(struct rk_lcdc_driver *dev_drv,
+ enum fb_win_map_order order)
+{
+ mutex_lock(&dev_drv->fb_win_id_mutex);
+ if (order == FB_DEFAULT_ORDER)
+ order = FB0_WIN0_FB1_WIN1_FB2_WIN2;
+ dev_drv->fb2_win_id = order / 100;
+ dev_drv->fb1_win_id = (order / 10) % 10;
+ dev_drv->fb0_win_id = order % 10;
+ mutex_unlock(&dev_drv->fb_win_id_mutex);
+
+ return 0;
+}
+
+static int rk3036_lcdc_fps_mgr(struct rk_lcdc_driver *dev_drv, int fps,
+ bool set)
+{
+ struct lcdc_device *lcdc_dev =
+ container_of(dev_drv, struct lcdc_device, driver);
+ struct rk_screen *screen = dev_drv->cur_screen;
+ u64 ft = 0;
+ u32 dotclk;
+ int ret;
+ u32 pixclock;
+ u32 x_total, y_total;
+ if (set) {
+ ft = div_u64(1000000000000llu, fps);
+ x_total =
+ screen->mode.upper_margin + screen->mode.lower_margin +
+ screen->mode.yres + screen->mode.vsync_len;
+ y_total =
+ screen->mode.left_margin + screen->mode.right_margin +
+ screen->mode.xres + screen->mode.hsync_len;
+ dev_drv->pixclock = div_u64(ft, x_total * y_total);
+ dotclk = div_u64(1000000000000llu, dev_drv->pixclock);
+ ret = clk_set_rate(lcdc_dev->dclk, dotclk);
+ }
+
+ pixclock = div_u64(1000000000000llu, clk_get_rate(lcdc_dev->dclk));
+ dev_drv->pixclock = lcdc_dev->pixclock = pixclock;
+ fps = rk_fb_calc_fps(lcdc_dev->screen, pixclock);
+ screen->ft = 1000 / fps; /*one frame time in ms */
+
+ if (set)
+ dev_info(dev_drv->dev, "%s:dclk:%lu,fps:%d\n", __func__,
+ clk_get_rate(lcdc_dev->dclk), fps);
+
+ return fps;
+}
+
+static int rk3036_lcdc_poll_vblank(struct rk_lcdc_driver *dev_drv)
+{
+ struct lcdc_device *lcdc_dev =
+ container_of(dev_drv, struct lcdc_device, driver);
+ u32 int_reg;
+ int ret;
+
+ if (lcdc_dev->clk_on) {
+ int_reg = lcdc_readl(lcdc_dev, INT_STATUS);
+ if (int_reg & m_LF_INT_STA) {
+ lcdc_msk_reg(lcdc_dev, INT_STATUS, m_LF_INT_CLEAR,
+ v_LF_INT_CLEAR(1));
+ ret = RK_LF_STATUS_FC;
+ } else
+ ret = RK_LF_STATUS_FR;
+ } else {
+ ret = RK_LF_STATUS_NC;
+ }
+
+ return ret;
+}
+
+static int rk3036_lcdc_get_dsp_addr(struct rk_lcdc_driver *dev_drv,unsigned int *dsp_addr)
+{
+ struct lcdc_device *lcdc_dev =
+ container_of(dev_drv, struct lcdc_device, driver);
+
+ if(lcdc_dev->clk_on){
+ dsp_addr[0] = lcdc_readl(lcdc_dev, WIN0_YRGB_MST);
+ dsp_addr[1] = lcdc_readl(lcdc_dev, WIN1_MST);
+ }
+ return 0;
+}
+
+static ssize_t rk3036_lcdc_get_disp_info(struct rk_lcdc_driver *dev_drv,
+ char *buf, int win_id)
+{
+// struct lcdc_device *lcdc_dev = container_of(dev_drv,
+// struct lcdc_device, driver);
+// struct rk_screen *screen = dev_drv->cur_screen;
+ struct rk_lcdc_win *win = NULL;
+ char fmt[9] = "NULL";
+ u32 size;
+
+ if (win_id < ARRAY_SIZE(lcdc_win)) {
+ win = dev_drv->win[win_id];
+ } else {
+ dev_err(dev_drv->dev,"invalid win number:%d!\n", win_id);
+ return 0;
+ }
+
+ size = snprintf(buf, PAGE_SIZE, "win%d: %s\n", win_id, get_format_string(win->format, fmt));
+ size += snprintf(buf + size, PAGE_SIZE - size, " xact %d yact %d xvir %d yvir %d\n",
+ win->area[0].xact, win->area[0].yact, win->area[0].xvir, win->area[0].yvir);
+ size += snprintf(buf + size, PAGE_SIZE - size, " xpos %d ypos %d xsize %d ysize %d\n",
+ win->area[0].xpos, win->area[0].ypos, win->area[0].xsize, win->area[0].ysize);
+ size += snprintf(buf + size, PAGE_SIZE - size, " yaddr 0x%x uvaddr 0x%x\n",
+ win->area[0].y_addr, win->area[0].uv_addr);
+ return size;
+}
+
+static int rk3036_lcdc_reg_dump(struct rk_lcdc_driver *dev_drv)
+{
+ struct lcdc_device *lcdc_dev = container_of(dev_drv,
+ struct lcdc_device,
+ driver);
+ int *cbase = (int *)lcdc_dev->regs;
+ int *regsbak = (int *)lcdc_dev->regsbak;
+ int i, j;
+
+ printk("back up reg:\n");
+ for (i = 0; i <= (0x90 >> 4); i++) {
+ for (j = 0; j < 4; j++)
+ printk("%08x ", *(regsbak + i * 4 + j));
+ printk("\n");
+ }
+
+ printk("lcdc reg:\n");
+ for (i = 0; i <= (0x90 >> 4); i++) {
+ for (j = 0; j < 4; j++)
+ printk("%08x ", readl_relaxed(cbase + i * 4 + j));
+ printk("\n");
+ }
+ return 0;
+}
+
+static struct rk_lcdc_drv_ops lcdc_drv_ops = {
+ .open = rk3036_lcdc_open,
+ .load_screen = rk3036_load_screen,
+ .set_par = rk3036_lcdc_set_par,
+ .pan_display = rk3036_lcdc_pan_display,
+ .blank = rk3036_lcdc_blank,
+ .ioctl = rk3036_lcdc_ioctl,
+ .get_win_state = rk3036_lcdc_get_win_state,
+ .ovl_mgr = rk3036_lcdc_ovl_mgr,
+ .get_disp_info = rk3036_lcdc_get_disp_info,
+ .fps_mgr = rk3036_lcdc_fps_mgr,
+ .fb_get_win_id = rk3036_lcdc_get_win_id,
+ .fb_win_remap = rk3036_fb_win_remap,
+ .poll_vblank = rk3036_lcdc_poll_vblank,
+ .get_dsp_addr = rk3036_lcdc_get_dsp_addr,
+ .cfg_done = rk3036_lcdc_cfg_done,
+ .dump_reg = rk3036_lcdc_reg_dump,
+ .set_dsp_bcsh_hue = rk3036_lcdc_set_bcsh_hue,
+ .set_dsp_bcsh_bcs = rk3036_lcdc_set_bcsh_bcs,
+ .get_dsp_bcsh_hue = rk3036_lcdc_get_bcsh_hue,
+ .get_dsp_bcsh_bcs = rk3036_lcdc_get_bcsh_bcs,
+ .open_bcsh = rk3036_lcdc_open_bcsh,
+};
+
+static int rk3036_lcdc_probe(struct platform_device *pdev)
+{
+ struct lcdc_device *lcdc_dev = NULL;
+ struct rk_lcdc_driver *dev_drv;
+ struct device *dev = &pdev->dev;
+ struct resource *res;
+ int ret;
+
+ lcdc_dev = devm_kzalloc(dev,
+ sizeof(struct lcdc_device), GFP_KERNEL);
+ if (!lcdc_dev) {
+ dev_err(&pdev->dev, "rk3036 lcdc device kmalloc fail!");
+ return -ENOMEM;
+ }
+ platform_set_drvdata(pdev, lcdc_dev);
+ lcdc_dev->dev = dev;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ lcdc_dev->reg_phy_base = res->start;
+ lcdc_dev->len = resource_size(res);
+ lcdc_dev->regs = devm_ioremap_resource(dev, res);
+ if (IS_ERR(lcdc_dev->regs))
+ return PTR_ERR(lcdc_dev->regs);
+
+ lcdc_dev->regsbak = devm_kzalloc(dev, lcdc_dev->len, GFP_KERNEL);
+ if (IS_ERR(lcdc_dev->regsbak))
+ return PTR_ERR(lcdc_dev->regsbak);
+
+ dev_set_name(lcdc_dev->dev, "lcdc%d", lcdc_dev->id);
+ dev_drv = &lcdc_dev->driver;
+ dev_drv->dev = dev;
+ dev_drv->prop = 0;
+ dev_drv->id = lcdc_dev->id;
+ dev_drv->ops = &lcdc_drv_ops;
+ dev_drv->lcdc_win_num = ARRAY_SIZE(lcdc_win);
+ spin_lock_init(&lcdc_dev->reg_lock);
+
+ lcdc_dev->irq = platform_get_irq(pdev, 0);
+ if (lcdc_dev->irq < 0) {
+ dev_err(&pdev->dev, "cannot find IRQ for lcdc%d\n",
+ lcdc_dev->id);
+ return -ENXIO;
+ }
+
+ ret = devm_request_irq(dev, lcdc_dev->irq, rk3036_lcdc_isr,
+ IRQF_DISABLED, dev_name(dev), lcdc_dev);
+ if (ret) {
+ dev_err(&pdev->dev, "cannot requeset irq %d - err %d\n",
+ lcdc_dev->irq, ret);
+ return ret;
+ }
+
+ ret = rk_fb_register(dev_drv, lcdc_win, lcdc_dev->id);
+ if (ret < 0) {
+ dev_err(dev, "register fb for lcdc%d failed!\n", lcdc_dev->id);
+ return ret;
+ }
+ lcdc_dev->screen = dev_drv->screen0;
+
+ dev_info(dev, "lcdc%d probe ok\n", lcdc_dev->id);
+ return 0;
+}
+
+#if defined(CONFIG_PM)
+static int rk3036_lcdc_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ return 0;
+}
+
+static int rk3036_lcdc_resume(struct platform_device *pdev)
+{
+ return 0;
+}
+#else
+#define rk3036_lcdc_suspend NULL
+#define rk3036_lcdc_resume NULL
+#endif
+
+static int rk3036_lcdc_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+static void rk3036_lcdc_shutdown(struct platform_device *pdev)
+{
+
+}
+
+#if defined(CONFIG_OF)
+static const struct of_device_id rk3036_lcdc_dt_ids[] = {
+ {.compatible = "rockchip,rk3036-lcdc",},
+ {}
+};
+#endif
+
+static struct platform_driver rk3036_lcdc_driver = {
+ .probe = rk3036_lcdc_probe,
+ .remove = rk3036_lcdc_remove,
+ .driver = {
+ .name = "rk3036-lcdc",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(rk3036_lcdc_dt_ids),
+ },
+ .suspend = rk3036_lcdc_suspend,
+ .resume = rk3036_lcdc_resume,
+ .shutdown = rk3036_lcdc_shutdown,
+};
+
+static int __init rk3036_lcdc_module_init(void)
+{
+ return platform_driver_register(&rk3036_lcdc_driver);
+}
+
+static void __exit rk3036_lcdc_module_exit(void)
+{
+ platform_driver_unregister(&rk3036_lcdc_driver);
+}
+
+fs_initcall(rk3036_lcdc_module_init);
+module_exit(rk3036_lcdc_module_exit);
\ No newline at end of file
projects / firefly-linux-kernel-4.4.55.git / commitdiff