bybrooklyn/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-03 22:12:32 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/amd/display: Only poll analog connectors

Browse Source 
Analog connectors may be hot-plugged unlike other connector
types that don't support HPD.

Stop DRM from polling other connector types that don't
support HPD, such as eDP, LVDS, etc. These were wrongly
polled when analog connector support was added,
causing issues with the seamless boot process.

Fixes: c4f3f114e7 ("drm/amd/display: Poll analog connectors (v3)")
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reported-by: Matthew Schwartz <matthew.schwartz@linux.dev>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Timur Kristóf
2026-01-18 14:03:45 +01:00
committed by Alex Deucher
parent 0314df64dd
commit e924c7004b
1 changed files with 8 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c
View File

@@ -915,13 +915,19 @@ void amdgpu_dm_hpd_init(struct amdgpu_device *adev)
struct amdgpu_dm_connector *amdgpu_dm_connector;
const struct dc_link *dc_link;
use_polling |= connector->polled != DRM_CONNECTOR_POLL_HPD;
if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK)
continue;
amdgpu_dm_connector = to_amdgpu_dm_connector(connector);
/*
* Analog connectors may be hot-plugged unlike other connector
* types that don't support HPD. Only poll analog connectors.
*/
use_polling |=
amdgpu_dm_connector->dc_link &&
dc_connector_supports_analog(amdgpu_dm_connector->dc_link->link_id.id);
dc_link = amdgpu_dm_connector->dc_link;
/*