[Android6.0][RK3399] 双屏异显代码实现流程分析（二）【转】

本文转载自：http://blog.csdn.net/dearsq/article/details/55050125

• • Patch Code
    • dtsi
      • rk3399-androiddtsi
      • rk3399-evb-rev3-androiddts
    • lcdc 控制器
      • rk322x_lcdcc
      • rk_fbc
    • timing 初始化
      • rk_screenc
      • rk32_dpc
      • rk32_mipi_dsih
      • rk_fbh
      • lcd 的 dtsi

Platform: RK3399 
OS: Android 6.0 
Version: v2016.08 
LCD interface: eDP + mipi

Patch Code

Date: Fri, 09 Dec 2016 10:53:11 +0800 
Subject: [PATCH] video: rockchip: fb: add support dual lcd 
Change-Id: I246f8e7d725d26abf2555d3077dd87da72920731 
Signed-off-by: Huang xxx < ××× >

dtsi

rk3399-android.dtsi

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-android.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-android.dtsi
index a009537..05a8377 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-android.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-android.dtsi
@@ -287,7 +287,7 @@
        status = "okay";
        compatible = "rockchip,rk-fb";
        rockchip,disp-mode = <DUAL>;
-       rockchip,uboot-logo-on = <1>;
+       rockchip,uboot-logo-on = <0>;
        memory-region = <&rockchip_logo>;
    };

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rk3399-evb-rev3-android.dts

在 rk_screen 中默认只有一个 screen0, 用于填充 primary screen 的 timing 
现在需要添加 screen1，用于填充 extend screen 的 timing

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-evb-rev3-android.dts b/arch/arm64/boot/dts/rockchip/rk3399-evb-rev3-android.dts
index 3b3ff7c..3653205 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-evb-rev3-android.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-evb-rev3-android.dts
@@ -51,18 +51,55 @@
 };

 &rk_screen {
-   #include <dt-bindings/display/screen-timing/lcd-tv080wum-nl0-mipi.dtsi>
+   status = "okay";
+   screen0 {
+       screen_prop = <PRMRY>;
+       native-mode = <DEFAULT_MODE>;
+       power_ctr {
+           lcd_en0: lcd-en {
+               rockchip,power_type = <GPIO>;
+               gpios = <&gpio1 13 GPIO_ACTIVE_HIGH>;
+               rockchip,delay = <10>;
+           };
+           /* lcd_cs {
+               rockchip,power_type = <GPIO>;
+               gpios = <&gpio7 GPIO_A4 GPIO_ACTIVE_HIGH>;
+               rockchip,delay = <10>;
+           }; */
+       };
+       #include <dt-bindings/display/screen-timing/lcd-tv080wum-nl0-mipi.dtsi>
+       //#include <dt-bindings/display/screen-timing/lcd-F402.dtsi>
+   };
+   screen1 {
+       screen_prop = <EXTEND>;
+       native-mode = <DEFAULT_MODE>;
+       power_ctr {
+           /* cd_en1: lcd-en {
+               rockchip,power_type = <GPIO>;
+               gpios = <&gpio1 13 GPIO_ACTIVE_HIGH>;
+               rockchip,delay = <10>;
+           };*/
+           /* lcd_cs {
+               rockchip,power_type = <GPIO>;
+               gpios = <&gpio7 GPIO_A4 GPIO_ACTIVE_HIGH>;
+               rockchip,delay = <10>;
+           }; */
+       };
+       #include <dt-bindings/display/screen-timing/lcd-F402.dtsi>
+       //#include <dt-bindings/display/screen-timing/lcd-tv080wum-nl0-mipi.dtsi>
+       //#include "lcd-box.dtsi"
+   };
 };

 &vopb_rk_fb {
    status = "okay";
    power_ctr: power_ctr {
        rockchip,debug = <0>;
-       lcd_en: lcd-en {
+       /* lcd_en: lcd-en {
            rockchip,power_type = <GPIO>;
            gpios = <&gpio1 13 GPIO_ACTIVE_HIGH>;
            rockchip,delay = <10>;
-       };
+       }; */

        /*lcd_cs: lcd-cs {
            rockchip,power_type = <GPIO>;
@@ -80,14 +117,23 @@

 &vopl_rk_fb {
    status = "okay";
+   rockchip,uboot-logo-on = <0>;
 };

//设置 mipi 通道的为主屏， eDP 的为副屏

 &mipi0_rk_fb {
    status = "okay";
+   prop = <PRMRY>;
+   //prop = <EXTEND>;
+};
+
+&edp_rk_fb {
+   status = "okay";
+   prop = <EXTEND>;
+   //prop = <PRMRY>;
 };

 &hdmi_rk_fb {
-   status = "okay";
+   status = "disabled";
    rockchip,hdmi_video_source = <DISPLAY_SOURCE_LCDC1>;
 };
 ```

 ```
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-evb.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-evb.dtsi
index b3c7141..b72ce6c 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-evb.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-evb.dtsi
@@ -101,7 +101,7 @@
            232 233 234 235 236 237 238 239
            240 241 242 243 244 245 246 247
            248 249 250 251 252 253 254 255>;
-       default-brightness-level = <200>;
+       default-brightness-level = <128>;
    };

    clkin_gmac: external-gmac-clock {
@@ -370,7 +370,7 @@
 };

 &i2c4 {
-   status = "okay";
+   status = "disabled";
    i2c-scl-rising-time-ns = <600>;
    i2c-scl-falling-time-ns = <20>;

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lcdc 控制器

rk322x_lcdc.c

diff --git a/drivers/video/rockchip/lcdc/rk322x_lcdc.c b/drivers/video/rockchip/lcdc/rk322x_lcdc.c
index 93c996a..d6bdff3 100644
--- a/drivers/video/rockchip/lcdc/rk322x_lcdc.c
+++ b/drivers/video/rockchip/lcdc/rk322x_lcdc.c
@@ -5252,6 +5252,10 @@

    rk322x_pdev = pdev;

+   if (dev_drv->cur_screen->type != SCREEN_HDMI &&
+       dev_drv->cur_screen->type != SCREEN_TVOUT)
+       dev_drv->hot_plug_state = 1;
+
    if (dev_drv->cur_screen->refresh_mode == SCREEN_CMD_MODE) {
        te_pin = of_get_named_gpio_flags(np, "te-gpio", 0, NULL);
        if (IS_ERR_VALUE(te_pin)) {

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rk_fb.c

diff --git a/drivers/video/rockchip/rk_fb.c b/drivers/video/rockchip/rk_fb.c
index 25563a4..80db2e2 100644
--- a/drivers/video/rockchip/rk_fb.c
+++ b/drivers/video/rockchip/rk_fb.c
@@ -73,9 +73,8 @@
 extern phys_addr_t uboot_logo_base;
 extern phys_addr_t uboot_logo_size;
 extern phys_addr_t uboot_logo_offset;
-static struct rk_fb_trsm_ops *trsm_lvds_ops;
-static struct rk_fb_trsm_ops *trsm_edp_ops;
-static struct rk_fb_trsm_ops *trsm_mipi_ops;
+static struct rk_fb_trsm_ops *trsm_prmry_ops;
+static struct rk_fb_trsm_ops *trsm_extend_ops;
 static int uboot_logo_on;

 static int rk_fb_debug_lvl;
@@ -115,26 +114,13 @@

 int rk_fb_trsm_ops_register(struct rk_fb_trsm_ops *ops, int type)
 {
-   switch (type) {
-   case SCREEN_RGB:
-   case SCREEN_LVDS:
-   case SCREEN_DUAL_LVDS:
-   case SCREEN_LVDS_10BIT:
-   case SCREEN_DUAL_LVDS_10BIT:
-       trsm_lvds_ops = ops;
-       break;
-   case SCREEN_EDP:
-       trsm_edp_ops = ops;
-       break;
-   case SCREEN_MIPI:
-   case SCREEN_DUAL_MIPI:
-       trsm_mipi_ops = ops;
-       break;
-   default:
-       pr_warn("%s: unsupported transmitter: %d!
",
-           __func__, type);
-       break;
-   }
+   if (type == PRMRY)
+       trsm_prmry_ops = ops;
+   else if (type == EXTEND)
+       trsm_extend_ops = ops;
+   else
+       pr_err("%s, type:%d
", __func__, type);
+
    return 0;
 }

@@ -142,27 +128,12 @@
 {
    struct rk_fb_trsm_ops *ops;

-   switch (type) {
-   case SCREEN_RGB:
-   case SCREEN_LVDS:
-   case SCREEN_DUAL_LVDS:
-   case SCREEN_LVDS_10BIT:
-   case SCREEN_DUAL_LVDS_10BIT:
-       ops = trsm_lvds_ops;
-       break;
-   case SCREEN_EDP:
-       ops = trsm_edp_ops;
-       break;
-   case SCREEN_MIPI:
-   case SCREEN_DUAL_MIPI:
-       ops = trsm_mipi_ops;
-       break;
-   default:
-       ops = NULL;
-       pr_warn("%s: unsupported transmitter: %d!
",
-           __func__, type);
-       break;
-   }
+   if (type == PRMRY)
+       ops = trsm_prmry_ops;
+   else if (type == EXTEND)
+       ops = trsm_extend_ops;
+   else
+       pr_err("%s, type:%d
", __func__, type);
    return ops;
 }

@@ -317,10 +288,10 @@
 /*
  * rk display power control parse from dts
  */
-int rk_disp_pwr_ctr_parse_dt(struct rk_lcdc_driver *dev_drv)
+int rk_disp_pwr_ctr_parse_dt(struct device_node *np,
+                struct rk_screen *rk_screen)
 {
-   struct device_node *root = of_get_child_by_name(dev_drv->dev->of_node,
-                           "power_ctr");
+   struct device_node *root = of_get_child_by_name(np, "power_ctr");
    struct device_node *child;
    struct rk_disp_pwr_ctr_list *pwr_ctr;
    struct list_head *pos;
@@ -329,10 +300,10 @@
    u32 debug = 0;
    int ret;

-   INIT_LIST_HEAD(&dev_drv->pwrlist_head);
+   INIT_LIST_HEAD(rk_screen->pwrlist_head);
    if (!root) {
-       dev_err(dev_drv->dev, "can't find power_ctr node for lcdc%d
",
-           dev_drv->id);
+       dev_err(rk_screen->dev, "can't find power_ctr node for lcdc%d
",
+           rk_screen->lcdc_id);
        return -ENODEV;
    }

@@ -347,7 +318,7 @@
                pwr_ctr->pwr_ctr.type = GPIO;
                pwr_ctr->pwr_ctr.gpio = of_get_gpio_flags(child, 0, &flags);
                if (!gpio_is_valid(pwr_ctr->pwr_ctr.gpio)) {
-                   dev_err(dev_drv->dev, "%s ivalid gpio
",
+                   dev_err(rk_screen->dev, "%s ivalid gpio
",
                        child->name);
                    return -EINVAL;
                }
@@ -355,7 +326,7 @@
                ret = gpio_request(pwr_ctr->pwr_ctr.gpio,
                           child->name);
                if (ret) {
-                   dev_err(dev_drv->dev,
+                   dev_err(rk_screen->dev,
                        "request %s gpio fail:%d
",
                        child->name, ret);
                }
@@ -364,9 +335,9 @@
                pwr_ctr->pwr_ctr.type = REGULATOR;
                pwr_ctr->pwr_ctr.rgl_name = NULL;
                ret = of_property_read_string(child, "rockchip,regulator_name",
-                                 &(pwr_ctr->pwr_ctr.rgl_name));
+                                &(pwr_ctr->pwr_ctr.rgl_name));
                if (ret || IS_ERR_OR_NULL(pwr_ctr->pwr_ctr.rgl_name))
-                   dev_err(dev_drv->dev, "get regulator name failed!
");
+                   dev_err(rk_screen->dev, "get regulator name failed!
");
                if (!of_property_read_u32(child, "rockchip,regulator_voltage", &val))
                    pwr_ctr->pwr_ctr.volt = val;
                else
@@ -378,29 +349,30 @@
            pwr_ctr->pwr_ctr.delay = val;
        else
            pwr_ctr->pwr_ctr.delay = 0;
-       list_add_tail(&pwr_ctr->list, &dev_drv->pwrlist_head);
+       list_add_tail(&pwr_ctr->list, rk_screen->pwrlist_head);
    }

    of_property_read_u32(root, "rockchip,debug", &debug);

    if (debug) {
-       list_for_each(pos, &dev_drv->pwrlist_head) {
+       list_for_each(pos, rk_screen->pwrlist_head) {
            pwr_ctr = list_entry(pos, struct rk_disp_pwr_ctr_list,
                         list);
-           pr_info("pwr_ctr_name:%s
"
-               "pwr_type:%s
"
-               "gpio:%d
"
-               "atv_val:%d
"
-               "delay:%d

",
-               pwr_ctr->pwr_ctr.name,
-               (pwr_ctr->pwr_ctr.type == GPIO) ? "gpio" : "regulator",
-               pwr_ctr->pwr_ctr.gpio,
-               pwr_ctr->pwr_ctr.atv_val,
-               pwr_ctr->pwr_ctr.delay);
+           printk(KERN_INFO "pwr_ctr_name:%s
"
+                  "pwr_type:%s
"
+                  "gpio:%d
"
+                  "atv_val:%d
"
+                  "delay:%d

",
+                  pwr_ctr->pwr_ctr.name,
+                  (pwr_ctr->pwr_ctr.type == GPIO) ? "gpio" : "regulator",
+                  pwr_ctr->pwr_ctr.gpio,
+                  pwr_ctr->pwr_ctr.atv_val,
+                  pwr_ctr->pwr_ctr.delay);
        }
    }

    return 0;
+
 }

 int rk_disp_pwr_enable(struct rk_lcdc_driver *dev_drv)
@@ -411,9 +383,14 @@
    struct regulator *regulator_lcd = NULL;
    int count = 10;

-   if (list_empty(&dev_drv->pwrlist_head))
+   if (!dev_drv->cur_screen->pwrlist_head) {
+       pr_info("error:  %s, lcdc%d screen pwrlist null
",
+           __func__, dev_drv->id);
        return 0;
-   list_for_each(pos, &dev_drv->pwrlist_head) {
+   }
+   if (list_empty(dev_drv->cur_screen->pwrlist_head))
+       return 0;
+   list_for_each(pos, dev_drv->cur_screen->pwrlist_head) {
        pwr_ctr_list = list_entry(pos, struct rk_disp_pwr_ctr_list,
                      list);
        pwr_ctr = &pwr_ctr_list->pwr_ctr;
@@ -422,8 +399,7 @@
            mdelay(pwr_ctr->delay);
        } else if (pwr_ctr->type == REGULATOR) {
            if (pwr_ctr->rgl_name)
-               regulator_lcd =
-                   regulator_get(NULL, pwr_ctr->rgl_name);
+               regulator_lcd = regulator_get(NULL, pwr_ctr->rgl_name);
            if (regulator_lcd == NULL) {
                dev_err(dev_drv->dev,
                    "%s: regulator get failed,regulator name:%s
",
@@ -456,9 +432,14 @@
    struct regulator *regulator_lcd = NULL;
    int count = 10;

-   if (list_empty(&dev_drv->pwrlist_head))
+   if (!dev_drv->cur_screen->pwrlist_head) {
+       pr_info("error:  %s, lcdc%d screen pwrlist null
",
+           __func__, dev_drv->id);
        return 0;
-   list_for_each(pos, &dev_drv->pwrlist_head) {
+   }
+   if (list_empty(dev_drv->cur_screen->pwrlist_head))
+       return 0;
+   list_for_each(pos, dev_drv->cur_screen->pwrlist_head) {
        pwr_ctr_list = list_entry(pos, struct rk_disp_pwr_ctr_list,
                      list);
        pwr_ctr = &pwr_ctr_list->pwr_ctr;
@@ -474,8 +455,7 @@
                continue;
            }
            while (regulator_is_enabled(regulator_lcd) > 0) {
-               if (regulator_disable(regulator_lcd) == 0 ||
-                   count == 0)
+               if (regulator_disable(regulator_lcd) == 0 || count == 0)
                    break;
                else
                    dev_err(dev_drv->dev,
@@ -530,6 +510,8 @@
        screen->pin_den = 1;
    else
        screen->pin_den = 0;
+   printk("hjc>>>prop:%d, x:%d, y:%d, dclk:%d
", screen->prop,
+       screen->mode.xres, screen->mode.yres, screen->mode.pixclock);

    return 0;
 }
@@ -544,7 +526,7 @@
        pr_err("parse display timing err
");
        return -EINVAL;
    }
-   dt = display_timings_get(disp_timing, disp_timing->native_mode);
+   dt = display_timings_get(disp_timing, screen->native_mode);
    rk_fb_video_mode_from_timing(dt, screen);

    return 0;
@@ -3942,7 +3924,8 @@
        win = dev_drv->win[win_id];

    if (!strcmp(fbi->fix.id, "fb0")) {
-       fb_mem_size = get_fb_size(dev_drv->reserved_fb);
+       fb_mem_size = get_fb_size(dev_drv->reserved_fb,
+                     dev_drv->cur_screen);
 #if defined(CONFIG_ION_ROCKCHIP)
        if (rk_fb_alloc_buffer_by_ion(fbi, win, fb_mem_size) < 0)
            return -ENOMEM;
@@ -3963,8 +3946,7 @@
        if (dev_drv->prop == EXTEND && dev_drv->iommu_enabled) {
            struct rk_lcdc_driver *dev_drv_prmry;
            int win_id_prmry;
-
-           fb_mem_size = get_fb_size(dev_drv->reserved_fb);
+           fb_mem_size = get_fb_size(dev_drv->reserved_fb, dev_drv->cur_screen);
 #if defined(CONFIG_ION_ROCKCHIP)
            dev_drv_prmry = rk_get_prmry_lcdc_drv();
            if (dev_drv_prmry == NULL)
@@ -4129,14 +4111,9 @@
        dev_drv->area_support[i] = 1;
    if (dev_drv->ops->area_support_num)
        dev_drv->ops->area_support_num(dev_drv, dev_drv->area_support);
-   rk_disp_pwr_ctr_parse_dt(dev_drv);
-   if (dev_drv->prop == PRMRY) {
-       rk_fb_set_prmry_screen(screen);
-       rk_fb_get_prmry_screen(screen);
-   }
-   dev_drv->trsm_ops = rk_fb_trsm_ops_get(screen->type);
-   if (dev_drv->prop != PRMRY)
-       rk_fb_get_extern_screen(screen);
+   rk_fb_set_screen(screen, dev_drv->prop);
+   rk_fb_get_screen(screen, dev_drv->prop);
+   dev_drv->trsm_ops = rk_fb_trsm_ops_get(dev_drv->prop);
    dev_drv->output_color = screen->color_mode;

    return 0;
@@ -4511,15 +4488,24 @@
        struct fb_info *extend_fbi = rk_fb->fb[dev_drv->fb_index_base];

        extend_fbi->var.pixclock = rk_fb->fb[0]->var.pixclock;
-       if (rk_fb->disp_mode == DUAL_LCD) {
-           extend_fbi->fbops->fb_open(extend_fbi, 1);
-           if (dev_drv->iommu_enabled) {
-               if (dev_drv->mmu_dev)
-                   rockchip_iovmm_set_fault_handler(dev_drv->dev,
-                                    rk_fb_sysmmu_fault_handler);
-           }
-           rk_fb_alloc_buffer(extend_fbi);
+       extend_fbi->var.xres_virtual = rk_fb->fb[0]->var.xres_virtual;
+       extend_fbi->var.yres_virtual = rk_fb->fb[0]->var.yres_virtual;
+       extend_fbi->var.xres = rk_fb->fb[0]->var.xres;
+       extend_fbi->var.yres = rk_fb->fb[0]->var.yres;
+       extend_fbi->fbops->fb_open(extend_fbi, 1);
+       if (dev_drv->iommu_enabled) {
+           if (dev_drv->mmu_dev)
+               rockchip_iovmm_set_fault_handler(dev_drv->dev,
+                                rk_fb_sysmmu_fault_handler);
+           if (dev_drv->ops->mmu_en)
+               dev_drv->ops->mmu_en(dev_drv);
        }
+       rk_fb_alloc_buffer(extend_fbi);
+       //if (rk_fb->disp_mode == DUAL_LCD) {
+       extend_fbi->fbops->fb_set_par(extend_fbi);
+       extend_fbi->fbops->fb_pan_display(&extend_fbi->var,
+                         extend_fbi);
+       //}
    }
 #endif
    return 0;

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timing 初始化

rk_screen.c

diff --git a/drivers/video/rockchip/screen/rk_screen.c b/drivers/video/rockchip/screen/rk_screen.c
index 3a4e6c3..7473e5f 100644
--- a/drivers/video/rockchip/screen/rk_screen.c
+++ b/drivers/video/rockchip/screen/rk_screen.c
@@ -4,57 +4,102 @@
 #include "lcd.h"
 #include "../hdmi/rockchip-hdmi.h"

-static struct rk_screen *rk_screen;
+static struct rk_screen *prmry_screen;
+static struct rk_screen *extend_screen;
+
+static void rk_screen_info_error(struct rk_screen *screen, int prop)
+{
+   pr_err(">>>>>>>>>>>>>>>>>>>>error<<<<<<<<<<<<<<<<<<<<
");
+   pr_err(">>please init %s screen info in dtsi file<<
",
+       (prop == PRMRY) ? "prmry" : "extend");
+   pr_err(">>>>>>>>>>>>>>>>>>>>error<<<<<<<<<<<<<<<<<<<<
");
+}

 int rk_fb_get_extern_screen(struct rk_screen *screen)
 {
-   if (unlikely(!rk_screen) || unlikely(!screen))
+   if (unlikely(!extend_screen) || unlikely(!screen))
        return -1;
-
-   memcpy(screen, rk_screen, sizeof(struct rk_screen));
+   memcpy(screen, extend_screen, sizeof(struct rk_screen));
    screen->dsp_lut = NULL;
    screen->cabc_lut = NULL;
-   screen->type = SCREEN_NULL;
-
    return 0;
 }

-int  rk_fb_get_prmry_screen(struct rk_screen *screen)
+int rk_fb_get_prmry_screen(struct rk_screen *screen)
 {
-   if (unlikely(!rk_screen) || unlikely(!screen))
+   if (unlikely(!prmry_screen) || unlikely(!screen))
        return -1;

-   memcpy(screen, rk_screen, sizeof(struct rk_screen));
+   memcpy(screen, prmry_screen, sizeof(struct rk_screen));
    return 0;
 }

-int rk_fb_set_prmry_screen(struct rk_screen *screen)
+int  rk_fb_get_screen(struct rk_screen *screen, int prop)
 {
-   if (unlikely(!rk_screen) || unlikely(!screen))
+   struct rk_screen *cur_screen = NULL;
+   if (unlikely(!screen))
        return -1;

-   rk_screen->lcdc_id = screen->lcdc_id;
-   rk_screen->screen_id = screen->screen_id;
-   rk_screen->x_mirror = screen->x_mirror;
-   rk_screen->y_mirror = screen->y_mirror;
-   rk_screen->overscan.left = screen->overscan.left;
-   rk_screen->overscan.top = screen->overscan.left;
-   rk_screen->overscan.right = screen->overscan.left;
-   rk_screen->overscan.bottom = screen->overscan.left;
+   if (prop == PRMRY) {
+       if (unlikely(!prmry_screen)) {
+           rk_screen_info_error(screen, prop);
+           return -1;
+       }
+       cur_screen = prmry_screen;
+   } else {
+       if (unlikely(!extend_screen)) {
+           rk_screen_info_error(screen, prop);
+           return -1;
+       }
+       cur_screen = extend_screen;
+   }
+   memcpy(screen, cur_screen, sizeof(struct rk_screen));
    return 0;
 }

-size_t get_fb_size(u8 reserved_fb)
+int rk_fb_set_screen(struct rk_screen *screen, int prop)
+{
+   struct rk_screen *cur_screen = NULL;
+
+   if (unlikely(!screen))
+       return -1;
+   if (prop == PRMRY) {
+       if (unlikely(!prmry_screen)) {
+           rk_screen_info_error(screen, prop);
+           return -1;
+       }
+   cur_screen = prmry_screen;
+   } else {
+       if (unlikely(!extend_screen)) {
+           rk_screen_info_error(screen, prop);
+           return -1;
+       }
+       cur_screen = extend_screen;
+   }
+
+   cur_screen->lcdc_id = screen->lcdc_id;
+   cur_screen->screen_id = screen->screen_id;
+   cur_screen->x_mirror = screen->x_mirror;
+   cur_screen->y_mirror = screen->y_mirror;
+   cur_screen->overscan.left = screen->overscan.left;
+   cur_screen->overscan.top = screen->overscan.left;
+   cur_screen->overscan.right = screen->overscan.left;
+   cur_screen->overscan.bottom = screen->overscan.left;
+
+   return 0;
+}
+
+size_t get_fb_size(u8 reserved_fb, struct rk_screen *screen)
 {
    size_t size = 0;
    u32 xres = 0;
    u32 yres = 0;

-   if (unlikely(!rk_screen))
+   if (unlikely(!screen))
        return 0;

-   xres = rk_screen->mode.xres;
-   yres = rk_screen->mode.yres;
+   xres = screen->mode.xres;
+   yres = screen->mode.yres;

    /* align as 64 bytes(16*4) in an odd number of times */
    xres = ALIGN_64BYTE_ODD_TIMES(xres, ALIGN_PIXEL_64BYTE_RGB8888);
@@ -73,22 +118,51 @@
 static int rk_screen_probe(struct platform_device *pdev)
 {
    struct device_node *np = pdev->dev.of_node;
-   int ret;
+   struct device_node *screen_np;
+   struct rk_screen *rk_screen;
+   int ret, screen_prop;

    if (!np) {
        dev_err(&pdev->dev, "Missing device tree node.
");
        return -EINVAL;
    }
-   rk_screen = devm_kzalloc(&pdev->dev,
-           sizeof(struct rk_screen), GFP_KERNEL);
-   if (!rk_screen) {
-       dev_err(&pdev->dev, "kmalloc for rk screen fail!");
-       return  -ENOMEM;
+
+   for_each_child_of_node(np, screen_np) {
+       rk_screen = devm_kzalloc(&pdev->dev,
+                    sizeof(struct rk_screen), GFP_KERNEL);
+       if (!rk_screen) {
+           dev_err(&pdev->dev, "kmalloc for rk screen fail!");
+           return  -ENOMEM;
+       }
+       rk_screen->pwrlist_head = devm_kzalloc(&pdev->dev,
+               sizeof(struct list_head), GFP_KERNEL);
+       if (!rk_screen->pwrlist_head) {
+           dev_err(&pdev->dev, "kmalloc for rk_screen pwrlist_head fail!");
+           return  -ENOMEM;
+       }
+       of_property_read_u32(screen_np, "screen_prop", &screen_prop);
+       if (screen_prop == PRMRY)
+           prmry_screen = rk_screen;
+       else if (screen_prop == EXTEND)
+           extend_screen = rk_screen;
+       else
+           dev_err(&pdev->dev, "unknow screen prop: %d
",
+               screen_prop);
+       rk_screen->prop = screen_prop;
+       of_property_read_u32(screen_np, "native-mode", &rk_screen->native_mode);
+       rk_screen->dev = &pdev->dev;
+       ret = rk_fb_prase_timing_dt(screen_np, rk_screen);
+       pr_info("%s screen timing parse %s
",
+           (screen_prop == PRMRY) ? "prmry" : "extend",
+           ret ? "failed" : "success");
+       ret = rk_disp_pwr_ctr_parse_dt(screen_np, rk_screen);
+       pr_info("%s screen power ctrl parse %s
",
+           (screen_prop == PRMRY) ? "prmry" : "extend",
+           ret ? "failed" : "success");
    }
-   ret = rk_fb_prase_timing_dt(np, rk_screen);
-   dev_info(&pdev->dev, "rockchip screen probe %s
",
-               ret ? "failed" : "success");
-   return ret;
+
+   dev_info(&pdev->dev, "rockchip screen probe success
");
+   return 0;
 }

 static const struct of_device_id rk_screen_dt_ids[] = {

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rk32_dp.c

diff --git a/drivers/video/rockchip/transmitter/rk32_dp.c b/drivers/video/rockchip/transmitter/rk32_dp.c
index 6d386bc..0bffdb0 100755
--- a/drivers/video/rockchip/transmitter/rk32_dp.c
+++ b/drivers/video/rockchip/transmitter/rk32_dp.c
@@ -129,7 +129,7 @@
    struct rk_screen *screen = &edp->screen;
    u32 val = 0;

-   rk_fb_get_prmry_screen(screen);
+   rk_fb_get_screen(screen, edp->prop);

    if (cpu_is_rk3288()) {
        if (screen->lcdc_id == 1)  /*select lcdc*/
@@ -1734,17 +1734,21 @@
    struct resource *res;
    struct device_node *np = pdev->dev.of_node;
    int ret;
+   int prop;

    if (!np) {
        dev_err(&pdev->dev, "Missing device tree node.
");
        return -EINVAL;
    }
+   of_property_read_u32(np, "prop", &prop);
+   pr_info("Use EDP as %s screen
", (prop == PRMRY) ? "prmry" : "extend");

    edp = devm_kzalloc(&pdev->dev, sizeof(struct rk32_edp), GFP_KERNEL);
    if (!edp) {
        dev_err(&pdev->dev, "no memory for state
");
        return -ENOMEM;
    }
+   edp->prop = prop;
    edp->dev = &pdev->dev;
    edp->video_info.h_sync_polarity = 0;
    edp->video_info.v_sync_polarity = 0;
@@ -1756,7 +1760,7 @@

    edp->video_info.link_rate   = LINK_RATE_1_62GBPS;
    edp->video_info.lane_count  = LANE_CNT4;
-   rk_fb_get_prmry_screen(&edp->screen);
+   rk_fb_get_screen(&edp->screen, prop);
    if (edp->screen.type != SCREEN_EDP) {
        dev_err(&pdev->dev, "screen is not edp!
");
        return -EINVAL;
@@ -1852,7 +1856,7 @@
        pm_runtime_get_sync(&pdev->dev);

    rk32_edp = edp;
-   rk_fb_trsm_ops_register(&trsm_edp_ops, SCREEN_EDP);
+   rk_fb_trsm_ops_register(&trsm_edp_ops, prop);
 #if defined(CONFIG_DEBUG_FS)
    edp->debugfs_dir = debugfs_create_dir("edp", NULL);
    if (IS_ERR(edp->debugfs_dir)) {
diff --git a/drivers/video/rockchip/transmitter/rk32_dp.h b/drivers/video/rockchip/transmitter/rk32_dp.h
index 2dc41c6..fda0de2 100755
--- a/drivers/video/rockchip/transmitter/rk32_dp.h
+++ b/drivers/video/rockchip/transmitter/rk32_dp.h
@@ -571,6 +571,7 @@
    bool edp_en;
    int soctype;
    struct dentry *debugfs_dir;
+   int prop;
 };
 ```
 #### rk32_mipi_dsi.c
 ```
diff --git a/drivers/video/rockchip/transmitter/rk32_mipi_dsi.c b/drivers/video/rockchip/transmitter/rk32_mipi_dsi.c
index 741fdb5..ed68d85 100644
--- a/drivers/video/rockchip/transmitter/rk32_mipi_dsi.c
+++ b/drivers/video/rockchip/transmitter/rk32_mipi_dsi.c
@@ -1609,7 +1609,7 @@
        pm_runtime_get_sync(&dsi0->pdev->dev);
 #endif
        opt_mode = dsi0->screen.refresh_mode;
-       rk_fb_get_prmry_screen(dsi0->screen.screen);
+       rk_fb_get_screen(dsi0->screen.screen, dsi0->prop);
        dsi0->screen.lcdc_id = dsi0->screen.screen->lcdc_id;
        rk32_init_phy_mode(dsi0->screen.lcdc_id);

@@ -1875,7 +1875,7 @@
 static int rk32_mipi_dsi_probe(struct platform_device *pdev)
 {
    int ret = 0;
-   static int id;
+   static int id, prop;
    struct dsi *dsi;
    struct mipi_dsi_ops *ops;
    struct rk_screen *screen;
@@ -1890,7 +1890,8 @@
        return -ENODEV;
    }
    data = of_id->data;
-
+   of_property_read_u32(np, "prop", &prop);
+   pr_info("Use mipi as %s screen
", (prop == PRMRY) ? "prmry" : "extend");
    dsi = devm_kzalloc(&pdev->dev, sizeof(struct dsi), GFP_KERNEL);
    if (!dsi) {
        dev_err(&pdev->dev, "request struct dsi fail!
");
@@ -1997,8 +1998,8 @@
        dev_err(&pdev->dev, "request struct rk_screen fail!
");
        return -1;
    }
-   rk_fb_get_prmry_screen(screen);
-
+   rk_fb_get_screen(screen, prop);
+   dsi->prop = prop;
    dsi->pdev = pdev;
    ops = &dsi->ops;
    ops->dsi = dsi;
@@ -2056,7 +2057,7 @@
        if(!support_uboot_display())
            rk32_init_phy_mode(dsi_screen->lcdc_id);
        */
-       rk_fb_trsm_ops_register(&trsm_dsi_ops, SCREEN_MIPI);
+       rk_fb_trsm_ops_register(&trsm_dsi_ops, prop);
 #ifdef MIPI_DSI_REGISTER_IO
        debugfs_create_file("mipidsi0", S_IFREG | S_IRUGO, dsi->debugfs_dir, dsi,
                            &reg_proc_fops);

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rk32_mipi_dsi.h

diff --git a/drivers/video/rockchip/transmitter/rk32_mipi_dsi.h b/drivers/video/rockchip/transmitter/rk32_mipi_dsi.h
index f568254..473db82 100644
--- a/drivers/video/rockchip/transmitter/rk32_mipi_dsi.h
+++ b/drivers/video/rockchip/transmitter/rk32_mipi_dsi.h
@@ -307,6 +307,7 @@
 struct dsi {
    u8 dsi_id;
    u8 lcdc_id;
+   int prop;
    u8 vid;
    u8 clk_on;
    struct regmap *grf_base;

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rk_fb.h

diff --git a/include/dt-bindings/display/rk_fb.h b/include/dt-bindings/display/rk_fb.h
index 81c9855..ae7241d 100755
--- a/include/dt-bindings/display/rk_fb.h
+++ b/include/dt-bindings/display/rk_fb.h
@@ -14,6 +14,13 @@
 #define DUAL       2
 #define DUAL_LCD   3

+#define DEFAULT_MODE   0
+#define HDMI_720P  0
+#define HDMI_1080P 1
+#define HDMI_2160P 2
+#define NTSC_CVBS  3
+#define PAL_CVBS   4
+
 #define DEFAULT_MODE           0
 #define ONE_VOP_DUAL_MIPI_HOR_SCAN 1
 #define ONE_VOP_DUAL_MIPI_VER_SCAN 2

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lcd 的 dtsi

diff --git a/include/dt-bindings/display/screen-timing/lcd-F402.dtsi b/include/dt-bindings/display/screen-timing/lcd-F402.dtsi
index a3ad25f..abe178f 100644
--- a/include/dt-bindings/display/screen-timing/lcd-F402.dtsi
+++ b/include/dt-bindings/display/screen-timing/lcd-F402.dtsi
@@ -4,9 +4,9 @@
  */


-disp_timings: display-timings {
-        native-mode = <&timing0>;
-        timing0: timing0 {
+display-timings {
+        native-mode = <&f402>;
+        f402: timing0 {
        screen-type = <SCREEN_EDP>;
        out-face    = <OUT_P666>;
        clock-frequency = <205000000>;

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diff --git a/include/dt-bindings/display/screen-timing/lcd-box.dtsi b/include/dt-bindings/display/screen-timing/lcd-box.dtsi
index 2109a89..20e2a21 100644
--- a/include/dt-bindings/display/screen-timing/lcd-box.dtsi
+++ b/include/dt-bindings/display/screen-timing/lcd-box.dtsi
@@ -3,36 +3,9 @@
  *
  */

-   disp_power_ctr: power_ctr {
-     /*                        rockchip,debug = <0>;
-        lcd_en:lcd_en {
-                rockchip,power_type = <GPIO>;
-                gpios = <&gpio0 GPIO_B0 GPIO_ACTIVE_HIGH>;
-                rockchip,delay = <10>;
-        };
-
-        bl_en:bl_en {
-                rockchip,power_type = <GPIO>;
-                gpios = <&gpio0 GPIO_A2 GPIO_ACTIVE_HIGH>;
-                rockchip,delay = <10>;
-        };
-
-        bl_ctr:bl_ctr {
-                rockchip,power_type = <GPIO>;
-                gpios = <&gpio3 GPIO_D6 GPIO_ACTIVE_HIGH>;
-                rockchip,delay = <10>;
-        };
-
-        lcd_rst:lcd_rst {
-                rockchip,power_type = <REGULATOR>;
-                rockchip,delay = <5>;
-        };*/
-
-};
-
-disp_timings: display-timings {
-   native-mode = <&timing0>;
-   timing0: timing0 {
+display-timings {
+   native-mode = <&hdmi_720p>;
+   hdmi_720p: timing0 {
        screen-type = <SCREEN_RGB>;
        out-face    = <OUT_P888>;
        color-mode = <COLOR_YCBCR>;
@@ -53,7 +26,7 @@
        swap-rg = <0>;
        swap-gb = <0>;
    };
-   timing1: timing1 {
+   hdmi_1080p: timing1 {
        screen-type = <SCREEN_RGB>;
        out-face    = <OUT_P888>;
        color-mode = <COLOR_YCBCR>;
@@ -74,7 +47,7 @@
        swap-rg = <0>;
        swap-gb = <0>;
    };
-   timing2: timing2 {
+   hdmi_2160p: timing2 {
        screen-type = <SCREEN_RGB>;
        out-face    = <OUT_P888>;
        color-mode = <COLOR_YCBCR>;

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diff --git a/include/dt-bindings/display/screen-timing/lcd-tv080wum-nl0-mipi.dtsi b/include/dt-bindings/display/screen-timing/lcd-tv080wum-nl0-mipi.dtsi
index b408d65..6a203a9 100644
--- a/include/dt-bindings/display/screen-timing/lcd-tv080wum-nl0-mipi.dtsi
+++ b/include/dt-bindings/display/screen-timing/lcd-tv080wum-nl0-mipi.dtsi
@@ -84,10 +84,10 @@
    */
 };

-disp_timings: display-timings {
-   native-mode = <&timing0>;
+display-timings {
+   native-mode = <&tv080wum_nl0_mipi>;
    compatible = "rockchip,display-timings";
-   timing0: timing0 {
+   tv080wum_nl0_mipi: timing0 {
        screen-type = <SCREEN_MIPI>;
        lvds-format = <LVDS_8BIT_2>;
        out-face    = <OUT_P888>;
diff --git a/include/linux/rk_fb.h b/include/linux/rk_fb.h
index d7634a8..1130ea4 100755
--- a/include/linux/rk_fb.h
+++ b/include/linux/rk_fb.h
@@ -811,7 +811,10 @@
 extern int rk_fb_get_prmry_screen( struct rk_screen *screen);
 extern int rk_fb_set_prmry_screen(struct rk_screen *screen);
 extern u32 rk_fb_get_prmry_screen_pixclock(void);
-extern int rk_disp_pwr_ctr_parse_dt(struct rk_lcdc_driver *dev_drv);
+extern int rk_fb_get_screen(struct rk_screen *screen, int prop);
+extern int rk_fb_set_screen(struct rk_screen *screen, int prop);
+extern int rk_disp_pwr_ctr_parse_dt(struct device_node *np,
+                   struct rk_screen *rk_screen);
 extern int rk_disp_pwr_enable(struct rk_lcdc_driver *dev_drv);
 extern int rk_disp_pwr_disable(struct rk_lcdc_driver *dev_drv);
 extern bool is_prmry_rk_lcdc_registered(void);
diff --git a/include/linux/rk_screen.h b/include/linux/rk_screen.h
index 5e5cd30..71a0d4d 100644
--- a/include/linux/rk_screen.h
+++ b/include/linux/rk_screen.h
@@ -61,13 +61,17 @@
 *ft: the time need to display one frame time
 */
 struct rk_screen {
-   u16 type;
+   struct device   *dev;
+   int prop;
    u16 refresh_mode;
+   struct list_head *pwrlist_head;
+   u16 type;
    u16 lvds_format;
    u16 face;
    u16 color_mode;
    u8 lcdc_id;
    u8 screen_id;
+   int native_mode;
    struct fb_videomode mode;
    u32 post_dsp_stx;
    u32 post_dsp_sty;
@@ -145,7 +149,7 @@
 };

 extern void set_lcd_info(struct rk_screen *screen, struct rk29lcd_info *lcd_info);
-extern size_t get_fb_size(u8 reserved_fb);
+extern size_t get_fb_size(u8 reserved_fb, struct rk_screen *screen);

 extern void set_tv_info(struct rk_screen *screen);
 extern void set_hdmi_info(struct rk_screen *screen);