video: rockchip: dp: fix dp connected issue which caused by hpd signal.
[firefly-linux-kernel-4.4.55.git] / drivers / video / rockchip / rk_fb.c
index 009898c5bf80b0f8e1b67cf210e62247ee416f66..c053315dd4c2a9c1576cfe001a5fddd69ce08d39 100644 (file)
@@ -90,6 +90,12 @@ module_param(rk_fb_iommu_debug, int, S_IRUGO | S_IWUSR);
 static int rk_fb_config_debug(struct rk_lcdc_driver *dev_drv,
                              struct rk_fb_win_cfg_data *win_data,
                              struct rk_fb_reg_data *regs, u32 cmd);
+static int car_reversing;
+
+static int is_car_camcap(void) {
+       return car_reversing && strcmp("camcap", current->comm);
+}
+
 int support_uboot_display(void)
 {
        return uboot_logo_on;
@@ -333,6 +339,8 @@ int rk_disp_pwr_ctr_parse_dt(struct rk_lcdc_driver *dev_drv)
        for_each_child_of_node(root, child) {
                pwr_ctr = kmalloc(sizeof(struct rk_disp_pwr_ctr_list),
                                  GFP_KERNEL);
+               if (!pwr_ctr)
+                       return -ENOMEM;
                strcpy(pwr_ctr->pwr_ctr.name, child->name);
                if (!of_property_read_u32(child, "rockchip,power_type", &val)) {
                        if (val == GPIO) {
@@ -494,6 +502,7 @@ int rk_fb_video_mode_from_timing(const struct display_timing *dt,
        screen->mode.yres = dt->vactive.typ;
        screen->mode.vsync_len = dt->vsync_len.typ;
        screen->type = dt->screen_type;
+       screen->refresh_mode = dt->refresh_mode;
        screen->lvds_format = dt->lvds_format;
        screen->face = dt->face;
        screen->color_mode = dt->color_mode;
@@ -644,6 +653,35 @@ char *get_format_string(enum data_format format, char *fmt)
        return fmt;
 }
 
+int rk_fb_set_vop_pwm(void)
+{
+       int i = 0;
+       struct rk_fb *inf = NULL;
+       struct rk_lcdc_driver *dev_drv = NULL;
+
+       if (likely(fb_pdev))
+               inf = platform_get_drvdata(fb_pdev);
+       else
+               return -1;
+
+       for (i = 0; i < inf->num_lcdc; i++) {
+               if (inf->lcdc_dev_drv[i]->cabc_mode == 1) {
+                       dev_drv = inf->lcdc_dev_drv[i];
+                       break;
+               }
+       }
+
+       if (!dev_drv)
+               return -1;
+
+       mutex_lock(&dev_drv->win_config);
+       if (dev_drv->ops->extern_func)
+               dev_drv->ops->extern_func(dev_drv, UPDATE_CABC_PWM);
+       mutex_unlock(&dev_drv->win_config);
+
+       return 0;
+}
+
 /*
  * this is for hdmi
  * name: lcdc device name ,lcdc0 , lcdc1
@@ -1346,7 +1384,7 @@ static int rk_fb_pan_display(struct fb_var_screeninfo *var,
        u16 uv_x_off, uv_y_off, uv_y_act;
        u8 is_pic_yuv = 0;
 
-       if (dev_drv->suspend_flag)
+       if (dev_drv->suspend_flag || is_car_camcap())
                return 0;
        win_id = dev_drv->ops->fb_get_win_id(dev_drv, info->fix.id);
        if (win_id < 0)
@@ -1655,6 +1693,8 @@ static void rk_fb_update_win(struct rk_lcdc_driver *dev_drv,
                        if (reg_win_data->reg_area_data[i].smem_start > 0) {
                                win->area[i].format =
                                        reg_win_data->reg_area_data[i].data_format;
+                               win->area[i].data_space =
+                                       reg_win_data->reg_area_data[i].data_space;
                                win->area[i].ion_hdl =
                                        reg_win_data->reg_area_data[i].ion_handle;
                                win->area[i].smem_start =
@@ -1791,8 +1831,18 @@ static int rk_fb_reg_effect(struct rk_lcdc_driver *dev_drv,
                                if (dev_drv->ops->get_win_state) {
                                        win_status =
                                        dev_drv->ops->get_win_state(dev_drv, i, j);
-                                       if (win_status)
+                                       if (win_status) {
                                                wait_for_vsync = true;
+                                               dev_info(dev_drv->dev,
+                                                        "win[%d]area[%d]: "
+                                                        "state: %d, "
+                                                        "cur state: %d,"
+                                                        "count: %d\n",
+                                                        i, j,
+                                                        dev_drv->win[i]->area[j].state,
+                                                        win_status,
+                                                        101 - count);
+                                       }
                                }
                        } else {
                                pr_err("!!!win[%d]state:%d,error!!!\n",
@@ -1899,16 +1949,15 @@ static void rk_fb_update_reg(struct rk_lcdc_driver *dev_drv,
                }
        }
 
+       mutex_lock(&dev_drv->win_config);
        for (i = 0; i < dev_drv->lcdc_win_num; i++) {
                win = dev_drv->win[i];
                win_data = rk_fb_get_win_data(regs, i);
                if (win_data) {
-                       mutex_lock(&dev_drv->win_config);
                        rk_fb_update_win(dev_drv, win, win_data);
                        win->state = 1;
                        dev_drv->ops->set_par(dev_drv, i);
                        dev_drv->ops->pan_display(dev_drv, i);
-                       mutex_unlock(&dev_drv->win_config);
                } else {
                        win->z_order = -1;
                        win->state = 0;
@@ -1940,13 +1989,15 @@ static void rk_fb_update_reg(struct rk_lcdc_driver *dev_drv,
                dev_drv->ops->cfg_done(dev_drv);
        else
                sw_sync_timeline_inc(dev_drv->timeline, 1);
+       mutex_unlock(&dev_drv->win_config);
 
        do {
                timestamp = dev_drv->vsync_info.timestamp;
                timeout = wait_event_interruptible_timeout(dev_drv->vsync_info.wait,
                                ktime_compare(dev_drv->vsync_info.timestamp, timestamp) > 0,
                                msecs_to_jiffies(50));
-
+               if (timeout <= 0)
+                       dev_info(dev_drv->dev, "timeout: %ld\n", timeout);
                wait_for_vsync = rk_fb_reg_effect(dev_drv, regs, count);
        } while (wait_for_vsync && count--);
 #ifdef H_USE_FENCE
@@ -2071,6 +2122,8 @@ static int rk_fb_config_debug(struct rk_lcdc_driver *dev_drv,
                        rk_fb_dbg(cmd, "           xact=%d,yact=%d,xvir=%d,yvir=%d\n",
                                  area_par->xact, area_par->yact,
                                  area_par->xvir, area_par->yvir);
+                       rk_fb_dbg(cmd, "           data_space%d\n",
+                                 area_par->data_space);
                }
        }
 
@@ -2229,8 +2282,10 @@ static int rk_fb_set_win_buffer(struct fb_info *info,
                                    ion_import_dma_buf(rk_fb->ion_client,
                                                       ion_fd);
                                if (IS_ERR(hdl)) {
-                                       pr_info("%s: Could not import handle:"
-                                               " %ld\n", __func__, (long)hdl);
+                                       pr_info("%s: win[%d]area[%d] can't import handle\n",
+                                               __func__, win_par->win_id, i);
+                                       pr_info("fd: %d, hdl: 0x%p, ion_client: 0x%p\n",
+                                               ion_fd, hdl, rk_fb->ion_client);
                                        return -EINVAL;
                                        break;
                                }
@@ -2296,6 +2351,8 @@ static int rk_fb_set_win_buffer(struct fb_info *info,
                data_format &= ~CSC_MASK;
                fb_data_fmt = rk_fb_data_fmt(data_format, 0);
                reg_win_data->reg_area_data[i].data_format = fb_data_fmt;
+               reg_win_data->reg_area_data[i].data_space =
+                                       win_par->area_par[i].data_space;
                if (IS_FBDC_FMT(fb_data_fmt)) {
                        reg_win_data->reg_area_data[i].fbdc_en = 1;
                        reg_win_data->reg_area_data[i].fbdc_cor_en = 1;
@@ -2357,7 +2414,7 @@ static int rk_fb_set_win_buffer(struct fb_info *info,
                 * reg_win_data->reg_area_data[i].y_offset =
                 *              yoffset*stride+xoffset*pixel_width/8;
                 */
-               if ((screen->y_mirror == 1) || (reg_win_data->mirror_en)) {
+               if (screen->y_mirror || reg_win_data->mirror_en) {
                        if (screen->interlace == 1) {
                                reg_win_data->reg_area_data[i].y_offset =
                                    yoffset * stride * 2 +
@@ -2381,7 +2438,8 @@ static int rk_fb_set_win_buffer(struct fb_info *info,
                        }
                }
                if (IS_RGB_FMT(fb_data_fmt) && dev_drv->iommu_enabled) {
-                       buff_len = reg_win_data->reg_area_data[i].y_offset +
+                       buff_len = yoffset * stride +
+                               xoffset * pixel_width / 8 +
                                reg_win_data->reg_area_data[i].xvir *
                                reg_win_data->reg_area_data[i].yact *
                                pixel_width / 8 -
@@ -2467,7 +2525,7 @@ static int rk_fb_set_win_buffer(struct fb_info *info,
                        }
                }
                buff_len = reg_win_data->reg_area_data[0].cbr_start +
-                       reg_win_data->reg_area_data[0].c_offset +
+                       uv_y_off * uv_stride + uv_x_off * pixel_width / 8 +
                        reg_win_data->reg_area_data[0].xvir *
                        reg_win_data->reg_area_data[0].yact *
                        pixel_width / 16 -
@@ -2650,6 +2708,7 @@ err_null_frame:
        win_data->ret_fence_fd = -1;
        pr_info("win num = %d,null frame\n", regs->win_num);
 err2:
+       rk_fb_config_debug(dev_drv, win_data, regs, 0);
        kfree(regs);
        mutex_unlock(&dev_drv->output_lock);
 
@@ -2876,9 +2935,11 @@ static int rk_fb_ioctl(struct fb_info *info, unsigned int cmd,
        case RK_FBIOSET_VSYNC_ENABLE:
                if (copy_from_user(&enable, argp, sizeof(enable)))
                        return -EFAULT;
-               dev_drv->vsync_info.active = enable;
+               if (enable)
+                       dev_drv->vsync_info.active++;
+               else
+                       dev_drv->vsync_info.active--;
                break;
-
        case RK_FBIOGET_DSP_ADDR:
                dev_drv->ops->get_dsp_addr(dev_drv, dsp_addr);
                if (copy_to_user(argp, &dsp_addr, sizeof(dsp_addr)))
@@ -2948,6 +3009,15 @@ static int rk_fb_ioctl(struct fb_info *info, unsigned int cmd,
                        if (cfgdone_index >= 10)
                                cfgdone_index = 0;
                }
+               if (is_car_camcap()) {
+                       int i = 0;
+
+                       for (i = 0; i < RK_MAX_BUF_NUM; i++)
+                               win_data.rel_fence_fd[i] = -1;
+
+                       win_data.ret_fence_fd = -1;
+                       goto cam_exit;
+               }
                if (copy_from_user(&win_data,
                                   (struct rk_fb_win_cfg_data __user *)argp,
                                   sizeof(win_data))) {
@@ -2958,6 +3028,7 @@ static int rk_fb_ioctl(struct fb_info *info, unsigned int cmd,
                dev_drv->wait_fs = win_data.wait_fs;
                ret = rk_fb_set_win_config(info, &win_data);
 
+cam_exit:
                if (copy_to_user((struct rk_fb_win_cfg_data __user *)arg,
                                 &win_data, sizeof(win_data))) {
                        ret = -EFAULT;
@@ -2987,6 +3058,8 @@ static int rk_fb_blank(int blank_mode, struct fb_info *info)
        struct rk_fb *rk_fb = dev_get_drvdata(info->device);
 #endif
 
+       if (is_car_camcap())
+               return 0;
        win_id = dev_drv->ops->fb_get_win_id(dev_drv, fix->id);
        if (win_id < 0)
                return -ENODEV;
@@ -3198,7 +3271,7 @@ static int rk_fb_set_par(struct fb_info *info)
        u16 uv_x_off, uv_y_off, uv_y_act;
        u8 is_pic_yuv = 0;
        /*var->pixclock = dev_drv->pixclock;*/
-       if (dev_drv->suspend_flag)
+       if (dev_drv->suspend_flag || is_car_camcap())
                return 0;
        win_id = dev_drv->ops->fb_get_win_id(dev_drv, info->fix.id);
        if (win_id < 0)
@@ -3418,7 +3491,7 @@ static int rk_fb_wait_for_vsync_thread(void *data)
                ktime_t timestamp = dev_drv->vsync_info.timestamp;
                int ret = wait_event_interruptible(dev_drv->vsync_info.wait,
                                !ktime_equal(timestamp, dev_drv->vsync_info.timestamp) &&
-                               (dev_drv->vsync_info.active || dev_drv->vsync_info.irq_stop));
+                               (dev_drv->vsync_info.active > 0 || dev_drv->vsync_info.irq_stop));
 
                if (!ret)
                        sysfs_notify(&fbi->dev->kobj, NULL, "vsync");
@@ -3535,10 +3608,13 @@ int rk_fb_switch_screen(struct rk_screen *screen, int enable, int lcdc_id)
                        dev_drv->id);
        if (enable == 2 /*&& dev_drv->enable*/)
                return 0;
-       pr_info("switch:en=%d,lcdc_id=%d,screen type=%d,cur type=%d\n",
+       pr_info("switch:en=%d,lcdc_id=%d,screen type=%d,cur type=%d",
                enable, lcdc_id, screen->type, dev_drv->cur_screen->type);
+       pr_info("data space: %d, color mode: %d\n",
+               screen->data_space, screen->color_mode);
 
        mutex_lock(&dev_drv->switch_screen);
+       dev_drv->hot_plug_state = enable;
        hdmi_switch_state = 0;
        dev_drv->hdmi_switch = 1;
        if (!dev_drv->uboot_logo) {
@@ -3642,6 +3718,13 @@ int rk_fb_switch_screen(struct rk_screen *screen, int enable, int lcdc_id)
                mutex_unlock(&dev_drv->switch_screen);
                return 0;
        } else {
+               if (load_screen || (rk_fb->disp_policy != DISPLAY_POLICY_BOX)) {
+                       for (i = 0; i < dev_drv->lcdc_win_num; i++) {
+                               if (dev_drv->win[i] && dev_drv->win[i]->state &&
+                                       dev_drv->ops->win_direct_en)
+                                       dev_drv->ops->win_direct_en(dev_drv, i, 0);
+                       }
+               }
                if (dev_drv->uboot_logo) {
                        if (dev_drv->cur_screen->mode.xres !=
                                screen->mode.xres ||
@@ -3655,64 +3738,45 @@ int rk_fb_switch_screen(struct rk_screen *screen, int enable, int lcdc_id)
                memcpy(dev_drv->cur_screen, screen, sizeof(struct rk_screen));
                dev_drv->cur_screen->xsize = dev_drv->cur_screen->mode.xres;
                dev_drv->cur_screen->ysize = dev_drv->cur_screen->mode.yres;
-               dev_drv->cur_screen->x_mirror = dev_drv->rotate_mode & X_MIRROR;
-               dev_drv->cur_screen->y_mirror = dev_drv->rotate_mode & Y_MIRROR;
-       }
-
-       if (load_screen || (rk_fb->disp_policy != DISPLAY_POLICY_BOX)) {
-               for (i = 0; i < dev_drv->lcdc_win_num; i++) {
-                       if (dev_drv->win[i] && dev_drv->win[i]->state &&
-                               dev_drv->ops->win_direct_en)
-                               dev_drv->ops->win_direct_en(dev_drv, i, 0);
-               }
+               dev_drv->cur_screen->x_mirror =
+                                       !!(dev_drv->rotate_mode & X_MIRROR);
+               dev_drv->cur_screen->y_mirror =
+                                       !!(dev_drv->rotate_mode & Y_MIRROR);
        }
 
        if (!dev_drv->uboot_logo || load_screen ||
            (rk_fb->disp_policy != DISPLAY_POLICY_BOX)) {
-               for (i = 0; i < dev_drv->lcdc_win_num; i++) {
-                       info = rk_fb->fb[dev_drv->fb_index_base + i];
-                       fb_par = (struct rk_fb_par *)info->par;
-                       win_id = dev_drv->ops->fb_get_win_id(dev_drv, info->fix.id);
-                       win = dev_drv->win[win_id];
-                       if (win && fb_par->state) {
-                               dev_drv->ops->load_screen(dev_drv, 1);
-
-                               info->var.activate |= FB_ACTIVATE_FORCE;
-                               if (rk_fb->disp_mode == ONE_DUAL) {
-                                       info->var.grayscale &= 0xff;
-                                       info->var.grayscale |=
-                                               (dev_drv->cur_screen->xsize << 8) +
-                                               (dev_drv->cur_screen->ysize << 20);
-                               }
-                               if (dev_drv->uboot_logo && win->state) {
-                                       if (win->area[0].xpos ||
-                                           win->area[0].ypos) {
-                                               win->area[0].xpos =
-                                                       (screen->mode.xres -
-                                                        win->area[0].xsize) / 2;
-                                               win->area[0].ypos =
-                                                       (screen->mode.yres -
-                                                        win->area[0].ysize) / 2;
-                                       } else {
-                                               win->area[0].xsize =
-                                                       screen->mode.xres;
-                                               win->area[0].ysize =
-                                                       screen->mode.yres;
-                                       }
-                                       dev_drv->ops->set_par(dev_drv, i);
-                                       dev_drv->ops->cfg_done(dev_drv);
-                               } else if (!dev_drv->win[win_id]->state) {
-                                       dev_drv->ops->open(dev_drv, win_id, 1);
-                                       /* dev_drv->suspend_flag = 0; */
-                                       /* mutex_lock(&dev_drv->win_config);
-                                        * info->var.xoffset = 0;
-                                        * info->var.yoffset = 0;
-                                        * info->fbops->fb_set_par(info);
-                                        * info->fbops->fb_pan_display(&info->var,
-                                        *                          info);
-                                        * mutex_unlock(&dev_drv->win_config);
-                                        */
+               info = rk_fb->fb[dev_drv->fb_index_base];
+               fb_par = (struct rk_fb_par *)info->par;
+               win_id = 0;
+               win = dev_drv->win[win_id];
+               if (win && fb_par->state) {
+                       dev_drv->ops->load_screen(dev_drv, 1);
+                       info->var.activate |= FB_ACTIVATE_FORCE;
+                       if (rk_fb->disp_mode == ONE_DUAL) {
+                               info->var.grayscale &= 0xff;
+                               info->var.grayscale |=
+                                       (dev_drv->cur_screen->xsize << 8) +
+                                       (dev_drv->cur_screen->ysize << 20);
+                       }
+                       if (dev_drv->uboot_logo && win->state) {
+                               if (win->area[0].xpos ||
+                                   win->area[0].ypos) {
+                                       win->area[0].xpos =
+                                               (screen->mode.xres -
+                                                win->area[0].xsize) / 2;
+                                       win->area[0].ypos =
+                                               (screen->mode.yres -
+                                                win->area[0].ysize) / 2;
+                               } else {
+                                       win->area[0].xsize = screen->mode.xres;
+                                       win->area[0].ysize = screen->mode.yres;
                                }
+                               dev_drv->ops->set_par(dev_drv, i);
+                               dev_drv->ops->cfg_done(dev_drv);
+                       } else if (!dev_drv->win[win_id]->state) {
+                               dev_drv->ops->open(dev_drv, win_id, 1);
+                               info->fbops->fb_pan_display(&info->var, info);
                        }
                }
        } else {
@@ -3937,7 +4001,7 @@ static int rk_fb_alloc_buffer(struct fb_info *fbi)
                                                       fb_par->ion_hdl);
                                dev_drv->win[win_id]->area[0].ion_hdl =
                                        fb_par->ion_hdl;
-                               if (dev_drv->iommu_enabled && dev_drv->mmu_dev)
+                               if (dev_drv->mmu_dev)
                                        ret = ion_map_iommu(dev_drv->dev,
                                                            rk_fb->ion_client,
                                                            fb_par->ion_hdl,
@@ -4046,8 +4110,8 @@ static int init_lcdc_device_driver(struct rk_fb *rk_fb,
        screen->overscan.right = 100;
        screen->overscan.bottom = 100;
 
-       screen->x_mirror = dev_drv->rotate_mode & X_MIRROR;
-       screen->y_mirror = dev_drv->rotate_mode & Y_MIRROR;
+       screen->x_mirror = !!(dev_drv->rotate_mode & X_MIRROR);
+       screen->y_mirror = !!(dev_drv->rotate_mode & Y_MIRROR);
 
        dev_drv->screen0 = screen;
        dev_drv->cur_screen = screen;
@@ -4169,6 +4233,7 @@ int rk_fb_register(struct rk_lcdc_driver *dev_drv,
        int i = 0, ret = 0, index = 0;
        unsigned long flags;
        char time_line_name[16];
+       int mirror = 0;
 
        if (rk_fb->num_lcdc == RK30_MAX_LCDC_SUPPORT)
                return -ENXIO;
@@ -4189,7 +4254,7 @@ int rk_fb_register(struct rk_lcdc_driver *dev_drv,
                fbi = framebuffer_alloc(0, &fb_pdev->dev);
                if (!fbi) {
                        dev_err(&fb_pdev->dev, "fb framebuffer_alloc fail!");
-                       ret = -ENOMEM;
+                       return -ENOMEM;
                }
                fb_par = devm_kzalloc(&fb_pdev->dev, sizeof(struct rk_fb_par),
                                      GFP_KERNEL);
@@ -4205,6 +4270,12 @@ int rk_fb_register(struct rk_lcdc_driver *dev_drv,
                fbi->fix = def_fix;
                sprintf(fbi->fix.id, "fb%d", rk_fb->num_fb);
                fb_videomode_to_var(&fbi->var, &dev_drv->cur_screen->mode);
+               if (dev_drv->dsp_mode == ONE_VOP_DUAL_MIPI_VER_SCAN) {
+                       fbi->var.xres /= 2;
+                       fbi->var.yres *= 2;
+                       fbi->var.xres_virtual /= 2;
+                       fbi->var.yres_virtual *= 2;
+               }
                fbi->var.width = dev_drv->cur_screen->width;
                fbi->var.height = dev_drv->cur_screen->height;
                fbi->var.grayscale |=
@@ -4216,8 +4287,6 @@ int rk_fb_register(struct rk_lcdc_driver *dev_drv,
 #endif
                fbi->fix.line_length =
                    (fbi->var.xres_virtual) * (fbi->var.bits_per_pixel >> 3);
-               fbi->var.width = dev_drv->cur_screen->width;
-               fbi->var.height = dev_drv->cur_screen->height;
                if (dev_drv->iommu_enabled)
                        fb_ops.fb_mmap = rk_fb_mmap;
                fbi->fbops = &fb_ops;
@@ -4309,14 +4378,17 @@ int rk_fb_register(struct rk_lcdc_driver *dev_drv,
                        int ymirror = 0;
                        struct page **pages;
                        char *vaddr;
-                       int i = 0;
+                       int logo_len, i = 0;
 
                        if (dev_drv->ops->get_dspbuf_info)
                                dev_drv->ops->get_dspbuf_info(dev_drv, &xact,
                                        &yact, &format, &dsp_addr, &ymirror);
+                       logo_len = rk_fb_pixel_width(format) * xact * yact >> 3;
                        nr_pages = size >> PAGE_SHIFT;
                        pages = kzalloc(sizeof(struct page) * nr_pages,
                                        GFP_KERNEL);
+                       if (!pages)
+                               return -ENOMEM;
                        while (i < nr_pages) {
                                pages[i] = phys_to_page(start);
                                start += PAGE_SIZE;
@@ -4327,6 +4399,7 @@ int rk_fb_register(struct rk_lcdc_driver *dev_drv,
                                pr_err("failed to vmap phy addr 0x%lx\n",
                                       (long)(uboot_logo_base +
                                       uboot_logo_offset));
+                               kfree(pages);
                                return -1;
                        }
 
@@ -4338,8 +4411,7 @@ int rk_fb_register(struct rk_lcdc_driver *dev_drv,
                        }
                        kfree(pages);
                        vunmap(vaddr);
-                       if (dev_drv->uboot_logo &&
-                           (width != xact || height != yact)) {
+                       if (width != xact || height != yact) {
                                pr_err("can't support uboot kernel logo use different size [%dx%d] != [%dx%d]\n",
                                       xact, yact, width, height);
                                return 0;
@@ -4349,9 +4421,11 @@ int rk_fb_register(struct rk_lcdc_driver *dev_drv,
                        local_irq_save(flags);
                        if (dev_drv->ops->wait_frame_start)
                                dev_drv->ops->wait_frame_start(dev_drv, 0);
+                       mirror = ymirror || dev_drv->cur_screen->y_mirror;
                        if (dev_drv->ops->post_dspbuf) {
                                dev_drv->ops->post_dspbuf(dev_drv,
-                                       main_fbi->fix.smem_start,
+                                       main_fbi->fix.smem_start +
+                                       (mirror ? logo_len : 0),
                                        rk_fb_data_fmt(0, bits),
                                        width, height, xvir,
                                        ymirror);
@@ -4391,6 +4465,8 @@ int rk_fb_register(struct rk_lcdc_driver *dev_drv,
                        nr_pages = PAGE_ALIGN(logo_len + align) >> PAGE_SHIFT;
                        pages = kzalloc(sizeof(struct page) * nr_pages,
                                        GFP_KERNEL);
+                       if (!pages)
+                               return -ENOMEM;
                        while (i < nr_pages) {
                                pages[i] = phys_to_page(start);
                                start += PAGE_SIZE;
@@ -4400,6 +4476,7 @@ int rk_fb_register(struct rk_lcdc_driver *dev_drv,
                        if (!vaddr) {
                                pr_err("failed to vmap phy addr 0x%x\n",
                                       start);
+                               kfree(pages);
                                return -1;
                        }
 
@@ -4412,9 +4489,10 @@ int rk_fb_register(struct rk_lcdc_driver *dev_drv,
                        local_irq_save(flags);
                        if (dev_drv->ops->wait_frame_start)
                                dev_drv->ops->wait_frame_start(dev_drv, 0);
+                       mirror = y_mirror || dev_drv->cur_screen->y_mirror;
                        dev_drv->ops->post_dspbuf(dev_drv,
                                        main_fbi->fix.smem_start +
-                                       (y_mirror ? logo_len : 0),
+                                       (mirror ? logo_len : 0),
                                        format, xact, yact,
                                        xvir,
                                        y_mirror);
@@ -4494,6 +4572,29 @@ int rk_fb_unregister(struct rk_lcdc_driver *dev_drv)
        return 0;
 }
 
+int rk_fb_set_car_reverse_status(struct rk_lcdc_driver *dev_drv,
+                                int status)
+{
+       char *envp[3] = {"Request", "FORCE UPDATE", NULL};
+
+       if (status) {
+               car_reversing = 1;
+               flush_kthread_worker(&dev_drv->update_regs_worker);
+               dev_drv->timeline_max++;
+#ifdef H_USE_FENCE
+               sw_sync_timeline_inc(dev_drv->timeline, 1);
+#endif
+               pr_debug("%s: camcap reverse start...\n", __func__);
+       } else {
+               car_reversing = 0;
+               kobject_uevent_env(&dev_drv->dev->kobj,
+                                  KOBJ_CHANGE, envp);
+               pr_debug("%s: camcap reverse finish...\n", __func__);
+       }
+
+       return 0;
+}
+
 static int rk_fb_probe(struct platform_device *pdev)
 {
        struct rk_fb *rk_fb = NULL;