diff options
| author | xurui <xurui@kylinos.cn> | 2022-12-23 17:28:58 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-01-05 11:42:09 -0500 |
| commit | 90f56611fc5b54d55e94ded1d494d6090649bdb6 (patch) | |
| tree | 34b5552cfe696d20421afc424a85b38481d2fc06 /drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | |
| parent | f200521899d22ec37ddb927f6a5755d8eacbc9e5 (diff) | |
| download | lwn-90f56611fc5b54d55e94ded1d494d6090649bdb6.tar.gz lwn-90f56611fc5b54d55e94ded1d494d6090649bdb6.zip | |
drm/amdgpu: Retry DDC probing on DVI on failure if we got an HPD interrupt
HPD signals on DVI ports can be fired off before the pins required for
DDC probing actually make contact, due to the pins for HPD making
contact first. This results in a HPD signal being asserted but DDC
probing failing, resulting in hotplugging occasionally failing.
Rescheduling the hotplug work for a second when we run into an HPD
signal with a failing DDC probe usually gives enough time for the rest
of the connector's pins to make contact, and fixes this issue.
Signed-off-by: xurui <xurui@kylinos.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_display.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c index b22471b3bd63..a876648e3d7a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c @@ -63,7 +63,7 @@ void amdgpu_display_hotplug_work_func(struct work_struct *work) { struct amdgpu_device *adev = container_of(work, struct amdgpu_device, - hotplug_work); + hotplug_work.work); struct drm_device *dev = adev_to_drm(adev); struct drm_mode_config *mode_config = &dev->mode_config; struct drm_connector *connector; |