drm/amd/display: Add NULL plane_state check for cursor disable logic

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[ Upstream commit d29fb7baab ]

[Why]
While scanning the top_pipe connections we can run into a case where
the bottom pipe is still connected to a top_pipe but with a NULL
plane_state.

[How]
Treat a NULL plane_state the same as the plane being invisible for
pipe cursor disable logic.

Cc: stable@vger.kernel.org
Cc: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

This commit is contained in:

Nicholas Kazlauskas 2023-03-11 09:11:29 -05:00 • committed by Greg Kroah-Hartman

parent c11b90aced

commit 615aff165b

1 changed files with 3 additions and 1 deletions

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drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c

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