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path: root/drivers/gpu/drm/ast/ast_mode.c
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Diffstat (limited to 'drivers/gpu/drm/ast/ast_mode.c')
-rw-r--r--drivers/gpu/drm/ast/ast_mode.c17
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c
index 834a156e3a75..0a1e1cf57e19 100644
--- a/drivers/gpu/drm/ast/ast_mode.c
+++ b/drivers/gpu/drm/ast/ast_mode.c
@@ -742,7 +742,6 @@ static void ast_crtc_dpms(struct drm_crtc *crtc, int mode)
case DRM_MODE_DPMS_SUSPEND:
if (ast->tx_chip_type == AST_TX_DP501)
ast_set_dp501_video_output(crtc->dev, 1);
- ast_crtc_load_lut(ast, crtc);
break;
case DRM_MODE_DPMS_OFF:
if (ast->tx_chip_type == AST_TX_DP501)
@@ -778,6 +777,21 @@ static int ast_crtc_helper_atomic_check(struct drm_crtc *crtc,
}
static void
+ast_crtc_helper_atomic_flush(struct drm_crtc *crtc, struct drm_crtc_state *old_crtc_state)
+{
+ struct ast_private *ast = to_ast_private(crtc->dev);
+ struct ast_crtc_state *ast_crtc_state = to_ast_crtc_state(crtc->state);
+ struct ast_crtc_state *old_ast_crtc_state = to_ast_crtc_state(old_crtc_state);
+
+ /*
+ * The gamma LUT has to be reloaded after changing the primary
+ * plane's color format.
+ */
+ if (old_ast_crtc_state->format != ast_crtc_state->format)
+ ast_crtc_load_lut(ast, crtc);
+}
+
+static void
ast_crtc_helper_atomic_enable(struct drm_crtc *crtc,
struct drm_crtc_state *old_crtc_state)
{
@@ -830,6 +844,7 @@ ast_crtc_helper_atomic_disable(struct drm_crtc *crtc,
static const struct drm_crtc_helper_funcs ast_crtc_helper_funcs = {
.atomic_check = ast_crtc_helper_atomic_check,
+ .atomic_flush = ast_crtc_helper_atomic_flush,
.atomic_enable = ast_crtc_helper_atomic_enable,
.atomic_disable = ast_crtc_helper_atomic_disable,
};