drm: re-allow no-op changes on non-primary planes in async flips

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[ Upstream commit b065bd213c ]

Commit fd40a63c63 ("drm/atomic: Let drivers decide which planes to
async flip") unintentionally disallowed no-op changes on non-primary
planes that the driver doesn't allow async flips on. This broke async
flips for compositors that disable the cursor plane in every async
atomic commit. To fix that, change drm_atomic_set_property to again
only run atomic_async_check if the plane would actually be changed by
the atomic commit.

Fixes: fd40a63c63 ("drm/atomic: Let drivers decide which planes to async flip")
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4263
Signed-off-by: Xaver Hugl <xaver.hugl@kde.org>
Reviewed-by: André Almeida <andrealmeid@igalia.com>
Link: https://lore.kernel.org/r/20250822152849.87843-1-xaver.hugl@kde.org
[andrealmeid: fix checkpatch warning]
Signed-off-by: André Almeida <andrealmeid@igalia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Xaver Hugl 2025-08-22 17:28:49 +02:00 • committed by Greg Kroah-Hartman

parent 373c12d1b5

commit 6f9cffca61

1 changed files with 12 additions and 11 deletions

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drivers/gpu/drm/drm_atomic_uapi.c

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