[PATCH 3/3] drm/ast: Enable primary plane with CRTC
Thomas Zimmermann
tzimmermann at suse.de
Fri Jun 17 10:32:26 UTC 2022
As the CRTC requires a primary plane for display, ensure that the
primary plane is enabled with the CRTC.
Use drm_atomic_helper_check_crtc_state(). Add all affected planes
to the atomic state so that their state will be checked as well.
Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
---
drivers/gpu/drm/ast/ast_mode.c | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c
index db2010a55674..e992e07a26f9 100644
--- a/drivers/gpu/drm/ast/ast_mode.c
+++ b/drivers/gpu/drm/ast/ast_mode.c
@@ -1094,15 +1094,19 @@ ast_crtc_helper_mode_valid(struct drm_crtc *crtc, const struct drm_display_mode
static int ast_crtc_helper_atomic_check(struct drm_crtc *crtc,
struct drm_atomic_state *state)
{
- struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
- crtc);
+ struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
struct drm_device *dev = crtc->dev;
struct ast_crtc_state *ast_state;
const struct drm_format_info *format;
bool succ;
+ int ret;
+
+ ret = drm_atomic_helper_check_crtc_state(crtc_state, false);
+ if (ret)
+ return ret;
if (!crtc_state->enable)
- return 0; /* no mode checks if CRTC is being disabled */
+ goto out;
ast_state = to_ast_crtc_state(crtc_state);
@@ -1116,7 +1120,8 @@ static int ast_crtc_helper_atomic_check(struct drm_crtc *crtc,
if (!succ)
return -EINVAL;
- return 0;
+out:
+ return drm_atomic_add_affected_planes(state, crtc);
}
static void ast_crtc_helper_atomic_begin(struct drm_crtc *crtc, struct drm_atomic_state *state)
--
2.36.1
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