[PATCH v5 24/39] drm/mediatek: Switch to drm_atomic_get_new_crtc_state()
From: Maxime Ripard
Date: Tue Sep 30 2025 - 07:01:14 EST
The mediatek atomic_check implementation uses the deprecated
drm_atomic_get_existing_crtc_state() helper.
This hook is called as part of the global atomic_check, thus before the
states are swapped. The existing state thus points to the new state, and
we can use drm_atomic_get_new_crtc_state() instead.
Reviewed-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Signed-off-by: Maxime Ripard <mripard@xxxxxxxxxx>
---
To: Chun-Kuang Hu <chunkuang.hu@xxxxxxxxxx>
To: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
To: Matthias Brugger <matthias.bgg@xxxxxxxxx>
To: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
Cc: linux-mediatek@xxxxxxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
---
drivers/gpu/drm/mediatek/mtk_plane.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_plane.c b/drivers/gpu/drm/mediatek/mtk_plane.c
index cbc4f37da8ba81ff9c8b3b58f66363837ffc21ec..d4486a63a6e01f02b6777522440dee8e39d51bf1 100644
--- a/drivers/gpu/drm/mediatek/mtk_plane.c
+++ b/drivers/gpu/drm/mediatek/mtk_plane.c
@@ -120,11 +120,12 @@ static int mtk_plane_atomic_async_check(struct drm_plane *plane,
ret = mtk_crtc_plane_check(new_plane_state->crtc, plane,
to_mtk_plane_state(new_plane_state));
if (ret)
return ret;
- crtc_state = drm_atomic_get_existing_crtc_state(state, new_plane_state->crtc);
+ crtc_state = drm_atomic_get_new_crtc_state(state,
+ new_plane_state->crtc);
return drm_atomic_helper_check_plane_state(plane->state, crtc_state,
DRM_PLANE_NO_SCALING,
DRM_PLANE_NO_SCALING,
true, true);
--
2.51.0