Mario Limonciello e8521d0cd9 drm/amd/display: Revert W/A for hard hangs on DCN20/DCN21 ... The WA from commit 2a50edbf10 ("drm/amd/display: Apply w/a for hard hang on HPD") and commit 1bd3bc745e ("drm/amd/display: Extend w/a for hard hang on HPD to dcn20") causes a regression in s0ix where the system will fail to resume properly on many laptops. Pull the workarounds out to avoid that s0ix regression in the common case. This HPD hang happens with an external device in special circumstances and a new W/A will need to be developed for this in the future. Cc: Qingqing Zhuo <qingqing.zhuo@amd.com> Reported-by: Scott Bruce <smbruce@gmail.com> Reported-by: Chris Hixon <linux-kernel-bugs@hixontech.com> Reported-by: spasswolf@web.de Link: https://bugzilla.kernel.org/show_bug.cgi?id=215436 Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1821 Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1852 Fixes: 2a50edbf10 ("drm/amd/display: Apply w/a for hard hang on HPD") Fixes: 1bd3bc745e ("drm/amd/display: Extend w/a for hard hang on HPD to dcn20") Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>		2022-01-14 18:08:14 -05:00
..
amdgpu_dm	drm/amd/pm: create a new holder for those APIs used only by legacy ASICs(si/kv)	2022-01-14 17:51:14 -05:00
dc	drm/amd/display: Revert W/A for hard hangs on DCN20/DCN21	2022-01-14 18:08:14 -05:00
dmub	drm/amd/display: [FW Promotion] Release 0.0.98	2021-12-30 08:54:44 -05:00
include	drm/amd/display: Enable DSC over eDP	2021-11-22 14:45:01 -05:00
modules	drm/amd/display: unhard code link to phy idx mapping in dc link and clean up	2022-01-07 17:21:20 -05:00
Kconfig	drm/amdgpu/display: fix dependencies for DRM_AMD_DC_SI	2021-10-05 10:55:41 -04:00
Makefile	drm/amd/display: Drop CONFIG_DRM_AMD_DC_DMUB guards	2019-11-13 15:29:42 -05:00
TODO