shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-04-06 05:03:13 +09:00
Code Issues Packages Projects Releases Wiki Activity

drm/amd/display: Clear OPTC mem select on disable

Browse Source 
[ Upstream commit b4e05bb1dec53fe28c3c88425aded824498666e5 ]

[Why]
Not clearing the memory select bits prior to OPTC disable can cause DSC
corruption issues when attempting to reuse a memory instance for another
OPTC that enables ODM.

[How]
Clear the memory select bits prior to disabling an OPTC.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Ilya Bakoulin <ilya.bakoulin@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:
Ilya Bakoulin
2024-01-03 09:42:04 -05:00
committed by Greg Kroah-Hartman
parent 6a1cb68b98
commit 2ceddecdd0
1 changed files with 3 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/drm/amd/display/dc/dcn32/dcn32_optc.c
View File

@@ -149,6 +149,9 @@ static bool optc32_disable_crtc(struct timing_generator *optc)
OPTC_SEG3_SRC_SEL, 0xf,
OPTC_NUM_OF_INPUT_SEGMENT, 0);
REG_UPDATE(OPTC_MEMORY_CONFIG,
OPTC_MEM_SEL, 0);
/* disable otg request until end of the first line
* in the vertical blank region
*/