diff options
| author | Zhan Liu <zhan.liu@amd.com> | 2021-05-09 19:30:36 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-05-10 18:09:25 -0400 |
| commit | 509b9a5b4865dee723296f143695a7774fc96c4a (patch) | |
| tree | b496cf4b613b9377ecb24f1245c8daaa3a451664 /drivers/gpu/drm | |
| parent | 7ddd9770857e26e6c284475260afce2fe71b4cb5 (diff) | |
| download | linux-509b9a5b4865dee723296f143695a7774fc96c4a.tar.bz2 | |
drm/amd/display: Avoid HPD IRQ in GPU reset state
[Why]
If GPU is in reset state, force enabling link will cause
unexpected behaviour.
[How]
Avoid handling HPD IRQ when GPU is in reset state.
Signed-off-by: Zhan Liu <zhan.liu@amd.com>
Reviewed-by: Nikola Cornij <nikola.cornij@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 4 |
1 files changed, 2 insertions, 2 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 bdbc577be65c..eab6befcb051 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -2768,15 +2768,15 @@ static void handle_hpd_rx_irq(void *param) } } - if (!amdgpu_in_reset(adev)) + if (!amdgpu_in_reset(adev)) { mutex_lock(&adev->dm.dc_lock); #ifdef CONFIG_DRM_AMD_DC_HDCP result = dc_link_handle_hpd_rx_irq(dc_link, &hpd_irq_data, NULL); #else result = dc_link_handle_hpd_rx_irq(dc_link, NULL, NULL); #endif - if (!amdgpu_in_reset(adev)) mutex_unlock(&adev->dm.dc_lock); + } out: if (result && !is_mst_root_connector) { |