video: rockchip: screen: init extend screen type

if the extend screen type is same to prmry screen type,
the GRF reg config for vop selete will be error;

Change-Id: I6671ae69da175352bd1935254603e434e85900ea
Signed-off-by: Huang Jiachai <hjc@rock-chips.com>

diff --git a/drivers/video/rockchip/screen/rk_screen.c b/drivers/video/rockchip/screen/rk_screen.c
index b82a8e7218c34724924d7069859d40e09fdefe0e..3a4e6c3bb8ac47f39a132343d0a38f9a7c2175fa 100644 (file)
--- a/drivers/video/rockchip/screen/rk_screen.c
+++ b/drivers/video/rockchip/screen/rk_screen.c
@@ -14,6 +14,7 @@ int rk_fb_get_extern_screen(struct rk_screen *screen)
        memcpy(screen, rk_screen, sizeof(struct rk_screen));
        screen->dsp_lut = NULL;
        screen->cabc_lut = NULL;
+       screen->type = SCREEN_NULL;
 
        return 0;
 }