drm/exynos: add crtc disable function

The crtc disable is used to turn off private plane for crtc.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
index 39eb4f0..047257b 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
@@ -173,6 +173,16 @@ static void exynos_drm_crtc_load_lut(struct drm_crtc *crtc)
        /* drm framework doesn't check NULL */
 }
 
+static void exynos_drm_crtc_disable(struct drm_crtc *crtc)
+{
+       struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
+
+       DRM_DEBUG_KMS("%s\n", __FILE__);
+
+       exynos_plane_dpms(exynos_crtc->plane, DRM_MODE_DPMS_OFF);
+       exynos_drm_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
+}
+
 static struct drm_crtc_helper_funcs exynos_crtc_helper_funcs = {
        .dpms           = exynos_drm_crtc_dpms,
        .prepare        = exynos_drm_crtc_prepare,
@@ -181,6 +191,7 @@ static struct drm_crtc_helper_funcs exynos_crtc_helper_funcs = {
        .mode_set       = exynos_drm_crtc_mode_set,
        .mode_set_base  = exynos_drm_crtc_mode_set_base,
        .load_lut       = exynos_drm_crtc_load_lut,
+       .disable        = exynos_drm_crtc_disable,
 };
 
 static int exynos_drm_crtc_page_flip(struct drm_crtc *crtc,