diff options
| author | Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> | 2021-11-08 16:49:48 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-11-22 14:59:13 -0500 |
| commit | 524a0ba6fab955b14d4ae9a15edbb853e9cad426 (patch) | |
| tree | e6e038701374682e786a6c7e18b9c45fd5d419c4 | |
| parent | 4aaea9d72e9aa01bfad7f48b3ad9d0ed591e7cb2 (diff) | |
| download | linux-524a0ba6fab955b14d4ae9a15edbb853e9cad426.tar.bz2 | |
drm/amd/display: Fix DPIA outbox timeout after GPU reset
[Why]
The HW interrupt gets disabled after GPU reset so we don't receive
notifications for HPD or AUX from DMUB - leading to timeout and
black screen with (or without) DPIA links connected.
[How]
Re-enable the interrupt after GPU reset like we do for the other
DC interrupts.
Fixes: 81927e2808be ("drm/amd/display: Support for DMUB AUX")
Reviewed-by: Jude Shih <Jude.Shih@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 3ace7227381e..b2bf77cbd613 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -2565,6 +2565,8 @@ static int dm_resume(void *handle) if (amdgpu_in_reset(adev)) { dc_state = dm->cached_dc_state; + amdgpu_dm_outbox_init(adev); + r = dm_dmub_hw_init(adev); if (r) DRM_ERROR("DMUB interface failed to initialize: status=%d\n", r); |