rk fb: send uevent when change video mode

Signed-off-by: hjc <hjc@rock-chips.com>

diff --git a/drivers/video/rockchip/rk_fb.c b/drivers/video/rockchip/rk_fb.c
index f9f4936a68380775e2efaa9081bd4a15a0fa7ffe..d808b2c4ceea89b540f65f07f53e9f60cae873c9 100644 (file)
--- a/drivers/video/rockchip/rk_fb.c
+++ b/drivers/video/rockchip/rk_fb.c
@@ -3143,6 +3143,7 @@ int rk_fb_switch_screen(struct rk_screen *screen, int enable, int lcdc_id)
        struct rk_lcdc_driver *dev_drv = NULL;
        char name[6] = {0};
        int i, win_id, load_screen = 0;
+       char *envp[3];
 
        if (unlikely(!rk_fb) || unlikely(!screen))
                return -ENODEV;
@@ -3169,6 +3170,16 @@ int rk_fb_switch_screen(struct rk_screen *screen, int enable, int lcdc_id)
                return 0;
        hdmi_switch_state = 0;
        dev_drv->hdmi_switch = 1;
+#ifdef CONFIG_SWITCH
+       envp[0] = "switch screen";
+       envp[1] = kmalloc(32, GFP_KERNEL);
+       if (envp[1] == NULL)
+               return 0;
+       sprintf(envp[1], "SCREEN=%d", screen->type);
+       envp[2] = NULL;
+       kobject_uevent_env(&dev_drv->dev->kobj, KOBJ_CHANGE, envp);
+       kfree(envp[1]);
+#endif
        if ((rk_fb->disp_mode == ONE_DUAL) ||
            (rk_fb->disp_mode == NO_DUAL)) {
                if ((dev_drv->ops->backlight_close) &&