rk fb : fix flash screen when switch hdmi

diff --git a/drivers/video/rockchip/rk_fb.c b/drivers/video/rockchip/rk_fb.c
index eea704bc2b7b33d1db2425148a79711e03e05a5d..9016edaae17760205665099d90044af8ea4e332b 100644 (file)
--- a/drivers/video/rockchip/rk_fb.c
+++ b/drivers/video/rockchip/rk_fb.c
@@ -629,7 +629,6 @@ int rk_fb_switch_screen(rk_screen *screen ,int enable ,int lcdc_id)
        int ret;
        int i;
        int layer_id;
-       bool backlight_status = rk29_get_backlight_status();
 
 #if defined(CONFIG_ONE_LCDC_DUAL_OUTPUT_INF)
        rk29_backlight_set(0);
@@ -764,10 +763,10 @@ int rk_fb_switch_screen(rk_screen *screen ,int enable ,int lcdc_id)
        #endif 
 
 #if defined(CONFIG_NO_DUAL_DISP)  //close backlight for device whic do not support dual display
-       rk29_backlight_set(!enable);
-#elif defined(CONFIG_ONE_LCDC_DUAL_OUTPUT_INF)  //close backlight for device whic do not support dual display
-       if(backlight_status == true)
+       if(!enable)
                rk29_backlight_set(1);
+#elif defined(CONFIG_ONE_LCDC_DUAL_OUTPUT_INF)  //close backlight for device whic do not support dual display
+       rk29_backlight_set(1);
 #endif
        return 0;