clk: rockchip: support setting ddr clock via SCPI APIs
[firefly-linux-kernel-4.4.55.git] / drivers / video / rockchip / rkfb_sysfs.c
old mode 100755 (executable)
new mode 100644 (file)
index e377e4f..de8acc5
@@ -38,7 +38,7 @@
 #include <linux/rockchip_ion.h>
 #endif
 #include "bmp_helper.h"
-
+#include <linux/delay.h>
 struct rkfb_sys_trace {
        int num_frames;
        int count_frame;
@@ -104,8 +104,37 @@ static ssize_t show_screen_info(struct device *dev,
 
        if (ft > 0)
                fps = div64_u64(1000000000000llu, ft);
-       return snprintf(buf, PAGE_SIZE, "xres:%d\nyres:%d\nfps:%d\n",
-                       screen->mode.xres, screen->mode.yres, fps);
+       return snprintf(buf, PAGE_SIZE,
+                       "xres:%d\nyres:%d\nfps:%d\ntype:%d\ninterlace:%d\n",
+                       screen->mode.xres, screen->mode.yres,
+                       fps, screen->type, screen->mode.vmode);
+}
+
+static ssize_t set_screen_info(struct device *dev,
+                              struct device_attribute *attr,
+                              const char *buf, size_t count)
+{
+       struct fb_info *fbi = dev_get_drvdata(dev);
+       struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
+       struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
+       int xmirror = 0, ymirror = 0, ret = 0, rotate = 0;
+
+       ret = kstrtoint(buf, 0, &rotate);
+       if (ret)
+               return ret;
+       xmirror = !!(rotate & X_MIRROR);
+       ymirror = !!(rotate & Y_MIRROR);
+       dev_drv->cur_screen->x_mirror = xmirror;
+       dev_drv->cur_screen->y_mirror = ymirror;
+       dev_drv->rotate_mode = rotate;
+       mutex_lock(&dev_drv->output_lock);
+       mutex_lock(&dev_drv->win_config);
+       if (dev_drv->ops->extern_func)
+               dev_drv->ops->extern_func(dev_drv, SET_DSP_MIRROR);
+       mutex_unlock(&dev_drv->win_config);
+       mutex_unlock(&dev_drv->output_lock);
+
+       return count;
 }
 
 static ssize_t show_disp_info(struct device *dev,
@@ -130,6 +159,14 @@ static void fill_buffer(void *handle, void *vaddr, int size)
                vfs_write(filp, vaddr, size, &filp->f_pos);
 }
 
+static void read_buffer(void *handle, void *vaddr, int size, loff_t pos)
+{
+       struct file *filp = handle;
+
+       if (filp)
+               vfs_read(filp, vaddr, size, &pos);
+}
+
 static int dump_win(struct ion_client *ion_client,
                    struct ion_handle *ion_handle, phys_addr_t phys_addr,
                    int width, int height, u8 data_format, uint32_t frameid,
@@ -182,7 +219,9 @@ static int dump_win(struct ion_client *ion_client,
                start = phys_addr;
                nr_pages = roundup(width * height * (bits >> 3), PAGE_SIZE);
                nr_pages /= PAGE_SIZE;
-               pages = kzalloc(sizeof(struct page) * nr_pages,GFP_KERNEL);
+               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;
@@ -214,7 +253,7 @@ static int dump_win(struct ion_client *ion_client,
        pr_info("dump win == > %s\n", name);
        filp = filp_open(name, flags, 0x600);
        if (!filp)
-               printk("fail to create %s\n", name);
+               pr_err("fail to create %s\n", name);
 
        old_fs = get_fs();
        set_fs(KERNEL_DS);
@@ -238,14 +277,16 @@ static int dump_win(struct ion_client *ion_client,
 }
 
 static ssize_t show_dump_buffer(struct device *dev,
-                             struct device_attribute *attr, char *buf)
+                               struct device_attribute *attr, char *buf)
 {
        ssize_t size;
 
        size = snprintf(buf, PAGE_SIZE,
                        "bmp       -- dump buffer to bmp image\n"
+                       "             can't support dump to single file\n"
                        "bin       -- dump buffer to bin image\n"
-                       "multi    --  each dump will create new file\n"
+                       "multi     -- each dump will create new file\n"
+                       "             only works on trace context\n"
                        "win=num   -- mask win to dump, default mask all\n"
                        "             win=1, will dump win1 buffer\n"
                        "             win=23, will dump win2 area3 buffer\n"
@@ -271,7 +312,7 @@ void trace_buffer_dump(struct device *dev, struct rk_lcdc_driver *dev_drv)
        struct rk_fb_reg_win_data *win_data;
        struct rk_fb_reg_area_data *area_data;
        struct rkfb_sys_trace *trace = dev_drv->trace_buf;
-       int i,j;
+       int i, j;
 
        if (!trace)
                return;
@@ -353,9 +394,9 @@ static ssize_t set_dump_buffer(struct device *dev,
 
                        if (kstrtoint(p + 4, 0, &win))
                                dev_err(dev, "can't found trace frames\n");
-                       if (win < 10)
+                       if (win < 10) {
                               mask_win |= 1 << win;
-                       else {
+                       else {
                                mask_win |= 1 << (win / 10);
                                mask_area |= 1 << (win % 10);
                        }
@@ -372,8 +413,7 @@ static ssize_t set_dump_buffer(struct device *dev,
                        continue;
                }
                if (!strncmp(p, "multi", 5)) {
-                       is_append = true;
-                       is_bmp = false;
+                       is_append = false;
                        continue;
                }
 
@@ -394,27 +434,28 @@ static ssize_t set_dump_buffer(struct device *dev,
                return PTR_ERR(dentry);
        }
 
+       mutex_lock(&dev_drv->front_lock);
        if (!num_frames) {
-               mutex_lock(&dev_drv->front_lock);
-
                if (!dev_drv->front_regs) {
                        u16 xact, yact;
                        int data_format;
                        u32 dsp_addr;
-
-                       mutex_unlock(&dev_drv->front_lock);
+                       int ymirror;
 
                        if (dev_drv->ops->get_dspbuf_info)
                                dev_drv->ops->get_dspbuf_info(dev_drv, &xact,
-                                               &yact, &data_format, &dsp_addr);
+                                               &yact, &data_format, &dsp_addr,
+                                               &ymirror);
 
                        dump_win(NULL, NULL, dsp_addr, xact, yact, data_format,
                                 0, 0, 0, is_bmp, false);
                        goto out;
                }
                front_regs = kmalloc(sizeof(*front_regs), GFP_KERNEL);
-               if (!front_regs)
+               if (!front_regs) {
+                       mutex_unlock(&dev_drv->front_lock);
                        return -ENOMEM;
+               }
                memcpy(front_regs, dev_drv->front_regs, sizeof(*front_regs));
 
                for (i = 0; i < front_regs->win_num; i++) {
@@ -440,19 +481,18 @@ static ssize_t set_dump_buffer(struct device *dev,
                                win_data = &front_regs->reg_win_data[i];
                                area_data = &win_data->reg_area_data[j];
 
-                               dump_win(rk_fb->ion_client, area_data->ion_handle,
+                               dump_win(rk_fb->ion_client,
+                                        area_data->ion_handle,
                                         area_data->smem_start,
                                         area_data->xvir, area_data->yvir,
-                                        area_data->data_format, trace->count_frame,
-                                        i, j, trace->is_bmp, trace->is_append);
+                                        area_data->data_format,
+                                        0, i, j, is_bmp, false);
                                if (area_data->ion_handle)
                                        ion_handle_put(area_data->ion_handle);
                        }
                }
 
                kfree(front_regs);
-
-               mutex_unlock(&dev_drv->front_lock);
        } else {
                trace->num_frames = num_frames;
                trace->count_frame = 0;
@@ -462,7 +502,150 @@ static ssize_t set_dump_buffer(struct device *dev,
                trace->mask_area = mask_area;
        }
 out:
+       mutex_unlock(&dev_drv->front_lock);
+       return count;
+}
+
+static ssize_t show_dsp_buffer(struct device *dev,
+                              struct device_attribute *attr, char *buf)
+{
+       ssize_t size;
+
+       size = snprintf(buf, PAGE_SIZE,
+                       "you can display a picture store in "
+                       "/data/fb0.bin use the following cmd:\n"
+                       "echo n xsize ysize format > dsp_buf\n"
+                       "n: picture number"
+                       "xsize: picture horizontal size\n"
+                       "ysize: picture vertical size\n"
+                       "format:\n"
+                       "    RGBA=1,RGBX=2,RGB=3,YUV420SP=17");
+
+       return size;
+}
+extern int __close_fd(struct files_struct *files, unsigned fd);
+
+static ssize_t set_dsp_buffer(struct device *dev,
+                             struct device_attribute *attr,
+                             const char *buf, size_t count)
+{
+       struct fb_info *fbi = dev_get_drvdata(dev);
+       struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
+       struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
+       struct rk_fb *rk_fb = dev_get_drvdata(fbi->device);
+       struct file *filp;
+       mm_segment_t old_fs;
+       int width, height, frame_num;
+       int i, j, flags, fd;
+       const char *start = buf;
+       struct ion_handle *handle = NULL;
+       char __iomem *screen_base;
+       struct rk_fb_win_cfg_data *win_config = NULL;
+       struct rk_screen *screen = dev_drv->cur_screen;
+       int space_max = 10;
+       int format;
+       size_t mem_size = 0;
+       char *name = "/data/fb0.bin";
+       struct sync_fence *acq_fence;
+       struct files_struct *files = current->files;
+
+       frame_num = simple_strtoul(start, NULL, 10);
+       do {
+               start++;
+               space_max--;
+       } while ((*start != ' ') && space_max);
+       start++;
+       width = simple_strtoul(start, NULL, 10);
+       do {
+               start++;
+               space_max--;
+       } while ((*start != ' ') && space_max);
+       start++;
+       height = simple_strtoul(start, NULL, 10);
+
+       do {
+               start++;
+               space_max--;
+       } while ((*start != ' ') && space_max);
+       start++;
+       format = simple_strtoul(start, NULL, 10);
 
+       pr_info("frame_num=%d,w=%d,h=%d,file=%s,format=%d\n",
+               frame_num, width, height, name, format);
+       flags = O_RDWR | O_CREAT | O_NONBLOCK;
+       filp = filp_open(name, flags, 0x600);
+       if (!filp)
+               pr_err("fail to create %s\n", name);
+
+       old_fs = get_fs();
+       set_fs(KERNEL_DS);
+
+       mem_size = width * height * 4 * frame_num;
+       if (dev_drv->iommu_enabled)
+               handle = ion_alloc(rk_fb->ion_client, mem_size, 0,
+                                  ION_HEAP_SYSTEM_MASK, 0);
+       else
+               handle = ion_alloc(rk_fb->ion_client, mem_size, 0,
+                                  ION_HEAP_TYPE_DMA_MASK, 0);
+       if (IS_ERR(handle)) {
+               pr_err("failed to ion_alloc:%ld\n", PTR_ERR(handle));
+               return -ENOMEM;
+       }
+       fd = ion_share_dma_buf_fd(rk_fb->ion_client, handle);
+       if (fd < 0) {
+               pr_err("ion_share_dma_buf_fd failed, fd=%d\n", fd);
+               return fd;
+       }
+       screen_base = ion_map_kernel(rk_fb->ion_client, handle);
+       read_buffer(filp, screen_base, mem_size, 0);
+       win_config =
+               kzalloc(sizeof(*win_config), GFP_KERNEL);
+       if (!win_config)
+               return -ENOMEM;
+
+       memset(win_config, 0, sizeof(struct rk_fb_win_cfg_data));
+       win_config->wait_fs = 0;
+       win_config->win_par[0].win_id = 0;
+       win_config->win_par[0].z_order = 0;
+       win_config->win_par[0].area_par[0].data_format = format;
+       win_config->win_par[0].area_par[0].ion_fd = fd;
+       win_config->win_par[0].area_par[0].x_offset = 0;
+       win_config->win_par[0].area_par[0].y_offset = 0;
+       win_config->win_par[0].area_par[0].xpos = 0;
+       win_config->win_par[0].area_par[0].ypos = 0;
+       win_config->win_par[0].area_par[0].xsize = screen->mode.xres;
+       win_config->win_par[0].area_par[0].ysize = screen->mode.yres;
+       win_config->win_par[0].area_par[0].xact = width;
+       win_config->win_par[0].area_par[0].yact = height;
+       win_config->win_par[0].area_par[0].xvir = width;
+       win_config->win_par[0].area_par[0].yvir = height;
+
+       for (i = 0; i < frame_num; i++) {
+               win_config->win_par[0].area_par[0].y_offset = height * i;
+               fbi->fbops->fb_ioctl(fbi, RK_FBIOSET_CONFIG_DONE,
+                                    (unsigned long)(win_config));
+               for (j = 0; j < RK_MAX_BUF_NUM; j++) {
+                       if (win_config->rel_fence_fd[j] > 0) {
+                               acq_fence =
+                               sync_fence_fdget(win_config->rel_fence_fd[j]);
+                               sync_fence_put(acq_fence);
+                       }
+               }
+
+               if (win_config->ret_fence_fd > 0) {
+                       acq_fence =
+                       sync_fence_fdget(win_config->ret_fence_fd);
+                       sync_fence_put(acq_fence);
+               }
+       }
+
+       ion_unmap_kernel(rk_fb->ion_client, handle);
+       ion_free(rk_fb->ion_client, handle);
+       __close_fd(files, fd);
+
+       set_fs(old_fs);
+       filp_close(filp, NULL);
+       kfree(win_config);
        return count;
 }
 
@@ -535,7 +718,7 @@ static ssize_t show_overlay(struct device *dev,
        struct fb_info *fbi = dev_get_drvdata(dev);
        struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
        struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
-       int ovl;
+       int ovl = 0;
 
        if (dev_drv->ops->ovl_mgr)
                ovl = dev_drv->ops->ovl_mgr(dev_drv, 0, 0);
@@ -574,7 +757,7 @@ static ssize_t show_fps(struct device *dev,
        struct fb_info *fbi = dev_get_drvdata(dev);
        struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
        struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
-       int fps;
+       int fps = 0;
 
        if (dev_drv->ops->fps_mgr)
                fps = dev_drv->ops->fps_mgr(dev_drv, 0, 0);
@@ -590,17 +773,22 @@ static ssize_t set_fps(struct device *dev, struct device_attribute *attr,
        struct fb_info *fbi = dev_get_drvdata(dev);
        struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
        struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
-       u32 fps;
+       struct rk_screen *screen = dev_drv->cur_screen;
+       u32 fps, origin_fps;
        int ret;
 
        ret = kstrtou32(buf, 0, &fps);
        if (ret)
                return ret;
 
-       if (fps == 0 || fps > 60) {
-               dev_info(dev, "unsupport fps value,pelase set 1~60\n");
-               return count;
-       }
+       origin_fps = rk_fb_calc_fps(screen, dev_drv->pixclock);
+
+       /*
+        * use too low or too high fps would make screen abnormal,
+        * and maybe can't recovery, so limit the fps.
+        */
+       if (fps <= 40 || fps > origin_fps)
+               fps = origin_fps;
 
        if (dev_drv->ops->fps_mgr)
                ret = dev_drv->ops->fps_mgr(dev_drv, fps, 1);
@@ -670,7 +858,7 @@ static ssize_t show_hwc_lut(struct device *dev,
 static ssize_t set_hwc_lut(struct device *dev, struct device_attribute *attr,
                           const char *buf, size_t count)
 {
-       int hwc_lut[256];
+       int *hwc_lut = NULL;
        const char *start = buf;
        int i = 256, temp;
        int space_max;
@@ -679,6 +867,9 @@ static ssize_t set_hwc_lut(struct device *dev, struct device_attribute *attr,
        struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
        struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
 
+       hwc_lut = kzalloc(256 * 4, GFP_KERNEL);
+       if (!hwc_lut)
+               return -ENOMEM;
        /*printk("count:%d\n>>%s\n\n",count,start);*/
        for (i = 0; i < 256; i++) {
                space_max = 15; /*max space number 15*/
@@ -694,15 +885,9 @@ static ssize_t set_hwc_lut(struct device *dev, struct device_attribute *attr,
                else
                        start++;
        }
-#if 0
-       for (i = 0; i < 16; i++) {
-               for (j = 0; j < 16; j++)
-                       printk("0x%08x ", hwc_lut[i * 16 + j]);
-               printk("\n");
-       }
-#endif
        if (dev_drv->ops->set_hwc_lut)
                dev_drv->ops->set_hwc_lut(dev_drv, hwc_lut, 1);
+       kfree(hwc_lut);
 
        return count;
 }
@@ -716,7 +901,7 @@ static ssize_t show_cabc_lut(struct device *dev,
 static ssize_t set_cabc_lut(struct device *dev, struct device_attribute *attr,
                            const char *buf, size_t count)
 {
-       int cabc_lut[256];
+       int *cabc_lut = NULL;
        const char *start = buf;
        int i = 256, temp;
        int space_max = 10;
@@ -725,6 +910,9 @@ static ssize_t set_cabc_lut(struct device *dev, struct device_attribute *attr,
        struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
        struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
 
+       cabc_lut = kzalloc(256 * 4, GFP_KERNEL);
+       if (!cabc_lut)
+               return -ENOMEM;
        for (i = 0; i < 256; i++) {
                temp = i;
                /*init by default value*/
@@ -747,6 +935,7 @@ static ssize_t set_cabc_lut(struct device *dev, struct device_attribute *attr,
        if (dev_drv->ops->set_cabc_lut)
                dev_drv->ops->set_cabc_lut(dev_drv, cabc_lut);
 
+       kfree(cabc_lut);
        return count;
 }
 
@@ -759,7 +948,7 @@ static ssize_t show_dsp_lut(struct device *dev,
 static ssize_t set_dsp_lut(struct device *dev, struct device_attribute *attr,
                           const char *buf, size_t count)
 {
-       int dsp_lut[256];
+       int *dsp_lut = NULL;
        const char *start = buf;
        int i = 256, temp;
        int space_max = 10;
@@ -768,6 +957,9 @@ static ssize_t set_dsp_lut(struct device *dev, struct device_attribute *attr,
        struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
        struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
 
+       dsp_lut = kzalloc(256 * 4, GFP_KERNEL);
+       if (!dsp_lut)
+               return -ENOMEM;
        for (i = 0; i < 256; i++) {
                temp = i;
                /*init by default value*/
@@ -788,16 +980,10 @@ static ssize_t set_dsp_lut(struct device *dev, struct device_attribute *attr,
                else
                        start++;
        }
-#if 0
-       for (i = 0; i < 16; i++) {
-               for (j = 0; j < 16; j++)
-                       printk("0x%08x ", dsp_lut[i * 16 + j]);
-               printk("\n");
-       }
-#endif
        if (dev_drv->ops->set_dsp_lut)
                dev_drv->ops->set_dsp_lut(dev_drv, dsp_lut);
 
+       kfree(dsp_lut);
        return count;
 }
 
@@ -819,7 +1005,8 @@ static ssize_t set_dsp_cabc(struct device *dev, struct device_attribute *attr,
        struct fb_info *fbi = dev_get_drvdata(dev);
        struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
        struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
-       int space_max, ret, mode = 0, calc = 0,up = 0, down = 0, global = 0;
+       int space_max, ret = 0;
+       int mode = 0, calc = 0, up = 0, down = 0, global = 0;
        const char *start = buf;
 
        space_max = 10; /*max space number 10*/
@@ -852,8 +1039,9 @@ static ssize_t set_dsp_cabc(struct device *dev, struct device_attribute *attr,
        start++;
        global = simple_strtoul(start, NULL, 10);
 
-    if (dev_drv->ops->set_dsp_cabc)
-               ret = dev_drv->ops->set_dsp_cabc(dev_drv, mode, calc, up, down, global);
+       if (dev_drv->ops->set_dsp_cabc)
+               ret = dev_drv->ops->set_dsp_cabc(dev_drv, mode,
+                                                calc, up, down, global);
        if (ret < 0)
                return ret;
 
@@ -866,7 +1054,7 @@ static ssize_t show_dsp_bcsh(struct device *dev,
        struct fb_info *fbi = dev_get_drvdata(dev);
        struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
        struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
-       int brightness, contrast, sat_con, sin_hue, cos_hue;
+       int brightness = 0, contrast = 0, sat_con = 0, sin_hue = 0, cos_hue = 0;
 
        if (dev_drv->ops->get_dsp_bcsh_bcs) {
                brightness = dev_drv->ops->get_dsp_bcsh_bcs(dev_drv,
@@ -1044,12 +1232,82 @@ static ssize_t set_scale(struct device *dev, struct device_attribute *attr,
        return count;
 }
 
+static ssize_t show_lcdc_id(struct device *dev,
+                           struct device_attribute *attr,
+                           char *buf)
+{
+       struct fb_info *fbi = dev_get_drvdata(dev);
+       struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
+       struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
+
+       return snprintf(buf, PAGE_SIZE, "%d\n", dev_drv->id);
+}
+
+static ssize_t show_dsp_mode(struct device *dev,
+                           struct device_attribute *attr,
+                           char *buf)
+{
+       struct fb_info *fbi = dev_get_drvdata(dev);
+       struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
+       struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
+
+       return snprintf(buf, PAGE_SIZE, "%d\n", dev_drv->dsp_mode);
+}
+
+static ssize_t show_hot_plug_state(struct device *dev,
+                           struct device_attribute *attr,
+                           char *buf)
+{
+       struct fb_info *fbi = dev_get_drvdata(dev);
+       struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
+       struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
+
+       return snprintf(buf, PAGE_SIZE, "%d\n", dev_drv->hot_plug_state);
+}
+
+static ssize_t show_win_property(struct device *dev,
+                                struct device_attribute *attr,
+                                char *buf)
+{
+       struct fb_info *fbi = dev_get_drvdata(dev);
+       struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
+       struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
+       int win_id = 0;
+
+       win_id = dev_drv->ops->fb_get_win_id(dev_drv, fbi->fix.id);
+       return snprintf(buf, PAGE_SIZE,
+                       "feature: %d, max_input_x: %d, max_input_y: %d\n",
+                       dev_drv->win[win_id]->property.feature,
+                       dev_drv->win[win_id]->property.max_input_x,
+                       dev_drv->win[win_id]->property.max_input_y);
+}
+
+static ssize_t set_car_reverse(struct device *dev,
+                              struct device_attribute *attr,
+                              const char *buf, size_t count)
+{
+       struct fb_info *fbi = dev_get_drvdata(dev);
+       struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
+       struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
+       u32 status;
+       int ret;
+
+       ret = kstrtou32(buf, 0, &status);
+       if (ret)
+               return ret;
+       rk_fb_set_car_reverse_status(dev_drv, status);
+
+       return count;
+}
+
 static struct device_attribute rkfb_attrs[] = {
        __ATTR(phys_addr, S_IRUGO, show_phys, NULL),
        __ATTR(virt_addr, S_IRUGO, show_virt, NULL),
        __ATTR(disp_info, S_IRUGO, show_disp_info, NULL),
        __ATTR(dump_buf, S_IRUGO | S_IWUSR, show_dump_buffer, set_dump_buffer),
-       __ATTR(screen_info, S_IRUGO, show_screen_info, NULL),
+       __ATTR(dsp_buf, S_IRUGO | S_IWUSR, show_dsp_buffer, set_dsp_buffer),
+       __ATTR(screen_info, S_IRUGO | S_IWUSR,
+              show_screen_info, set_screen_info),
        __ATTR(dual_mode, S_IRUGO, show_dual_mode, NULL),
        __ATTR(enable, S_IRUGO | S_IWUSR, show_fb_state, set_fb_state),
        __ATTR(overlay, S_IRUGO | S_IWUSR, show_overlay, set_overlay),
@@ -1061,6 +1319,11 @@ static struct device_attribute rkfb_attrs[] = {
        __ATTR(cabc, S_IRUGO | S_IWUSR, show_dsp_cabc, set_dsp_cabc),
        __ATTR(bcsh, S_IRUGO | S_IWUSR, show_dsp_bcsh, set_dsp_bcsh),
        __ATTR(scale, S_IRUGO | S_IWUSR, show_scale, set_scale),
+       __ATTR(lcdcid, S_IRUGO, show_lcdc_id, NULL),
+       __ATTR(win_property, S_IRUGO, show_win_property, NULL),
+       __ATTR(car_reverse, S_IWUSR, NULL, set_car_reverse),
+       __ATTR(dsp_mode, S_IRUGO, show_dsp_mode, NULL),
+       __ATTR(hot_plug_state, S_IRUGO, show_hot_plug_state, NULL),
 };
 
 int rkfb_create_sysfs(struct fb_info *fbi)