drm/amd/display: Fix to be able to stop crc calculation
authorWayne Lin <Wayne.Lin@amd.com>
Tue, 24 Nov 2020 11:57:03 +0000 (19:57 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 27 Jan 2021 10:55:02 +0000 (11:55 +0100)
commit3970a9851fe92b1a935e9aaa81ca36ce74c8a6fd
tree210f62f1314086fefe8108ed5a1329f82af3bd67
parent0a3be22a90ac61e0cf728e45ac9d454809e20c17
drm/amd/display: Fix to be able to stop crc calculation

[ Upstream commit 02ce73b01e09e388614b22b7ebc71debf4a588f0 ]

[Why]
Find out when we try to disable CRC calculation,
crc generation is still enabled. Main reason is
that dc_stream_configure_crc() will never get
called when the source is AMDGPU_DM_PIPE_CRC_SOURCE_NONE.

[How]
Add checking condition that when source is
AMDGPU_DM_PIPE_CRC_SOURCE_NONE, we should also call
dc_stream_configure_crc() to disable crc calculation.
Also, clean up crc window when disable crc calculation.

Signed-off-by: Wayne Lin <Wayne.Lin@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c