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linux/drivers/gpu/drm/amd/display/dc/irq
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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
..
dce60
dce80
dce110 drm/amd/display: Add src/ext ID info for dummy service 2021-12-14 16:07:45 -05:00
dce120
dcn10 drm/amd/display: fix function scopes 2021-12-13 16:34:26 -05:00
dcn20 drm/amd/display: Revert W/A for hard hangs on DCN20/DCN21 2022-01-14 18:08:14 -05:00
dcn21 drm/amd/display: Revert W/A for hard hangs on DCN20/DCN21 2022-01-14 18:08:14 -05:00
dcn30 drm/amd/display: Log DMCUB trace buffer events 2021-04-09 16:40:43 -04:00
dcn31 drm/amd/display: fix function scopes 2021-12-13 16:34:26 -05:00
dcn201 drm/amd/display: fix function scopes 2021-12-13 16:34:26 -05:00
dcn302 drm/amd/display: add DMCUB trace irq support for DCN302 2021-04-09 16:49:27 -04:00
dcn303 drm/amd/display: Edit license info for beige goby DC files 2021-05-19 22:42:04 -04:00
irq_service.c drm/amd/display: Revert W/A for hard hangs on DCN20/DCN21 2022-01-14 18:08:14 -05:00
irq_service.h drm/amd/display: Revert W/A for hard hangs on DCN20/DCN21 2022-01-14 18:08:14 -05:00
Makefile drm/amdgpu/display: fold DRM_AMD_DC_DCN201 into DRM_AMD_DC_DCN 2021-10-04 15:23:02 -04:00