kernel/linux.git/drivers/gpu/drm/amd/display/dc/dce, branch v5.18.16

drm/amd/display: Check if modulo is 0 before dividing.

2022-06-14T16:45:12+00:00

[ Upstream commit 49947b906a6bd9668eaf4f9cf691973c25c26955 ] [How & Why] If a value of 0 is read, then this will cause a divide-by-0 panic. Reviewed-by: Martin Leung Acked-by: Qingqing Zhuo Signed-off-by: David Galiffi Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin

drm/amd/display: Update engine ddc

2022-03-15T18:41:22+00:00

[Why] Crash caused by a ddc update failure [How] Update engine ddc before release engine. Reviewed-by: Wyatt Wood Reviewed-by: Aric Cyr Acked-by: Agustin Gutierrez Signed-off-by: Jing Zhou Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Add I2C escape to support query device exist.

2022-03-15T18:41:03+00:00

[How] 1. Search OEM I2C info from BIOS and compare with input parameter. 2. If BIOS doesn't record it, just try to read one byte. Reviewed-by: Aric Cyr Acked-by: Agustin Gutierrez Signed-off-by: JinZe.Xu Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: merge two duplicated clock_source_create

2022-03-15T18:25:15+00:00

[why] dcn31x could use dcn31 sepcific which contains deep_color_ratio for dmub Reviewed-by: Nevenko Stupar Reviewed-by: Hansen Dsouza Reviewed-by: Aric Cyr Acked-by: Alan Liu Signed-off-by: Charlene Liu Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Release AUX engine after failed acquire

2022-03-15T18:25:15+00:00

[Why] There is a sequence in which aux arbitration doesn't work correctly. Driver is left with aux access after it times out waiting for access. In future dmub fw is never granted aux access and is stuck in a while loop. [How] Cancel aux request from driver after timing out. Reviewed-by: Aric Cyr Acked-by: Alan Liu Signed-off-by: Wyatt Wood Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: fix deep color ratio

2022-03-15T18:25:15+00:00

Fix enum mapping for deep color ratio Reviewed-by: Charlene Liu Acked-by: Alan Liu Signed-off-by: Hansen Dsouza Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: add debug option to bypass ssinfo from bios for dcn315

2022-03-15T18:25:15+00:00

[Why & How] Add debug option to bypass ssinfo from BIOS for dcn315. Reviewed-by: Park, Chris Acked-by: Qingqing Zhuo Signed-off-by: Charlene Liu Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Adding a dc_debug option and dmub setting to use PHY FSM for PSR

2022-03-02T23:40:05+00:00

[Why] PSR Power on/off is done in PSR. Add a dc_debug option and dmub setting to use PHY implementation of this instead. [How] Add a dc_debug option and dmub setting to use PHY FSM Power up/down for PSR. Co-authored-by: Shah Dharati Reviewed-by: Hansen Dsouza Acked-by: Alan Liu Signed-off-by: Shah Dharati Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Fix for dmub outbox notification enable

2022-02-16T22:01:42+00:00

[Why] Currently driver enables dmub outbox notification before oubox ISR is registered. During boot scenario, sometimes dmub issues hpd outbox message before driver registers ISR and those messages are missed. [How] Enable dmub outbox notification after outbox ISR is registered. Also, restructured outbox enable code to call from dm layer and renamed APIs. Reviewed-by: Jun Lei Acked-by: Jasdeep Dhillon Signed-off-by: Meenakshikumar Somasundaram Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: add set dp lane settings to link_hwss

2022-02-02T23:26:32+00:00

[why] Factor set dp lane settings to link_hwss. v2: fix statement with no effect warning (Alex) Tested-by: Daniel Wheeler Reviewed-by: Jun Lei Acked-by: Stylon Wang Signed-off-by: Wenjing Liu Signed-off-by: Alex Deucher