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/dce_v11_0.c | |
| parent | f200521899d22ec37ddb927f6a5755d8eacbc9e5 (diff) | |
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/dce_v11_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/dce_v11_0.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c index cd9c19060d89..6b406bb7f3f3 100644 --- a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c +++ b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c @@ -2956,7 +2956,7 @@ static int dce_v11_0_sw_init(void *handle) if (r) return r; - INIT_WORK(&adev->hotplug_work, + INIT_DELAYED_WORK(&adev->hotplug_work, amdgpu_display_hotplug_work_func); drm_kms_helper_poll_init(adev_to_drm(adev)); @@ -3032,7 +3032,7 @@ static int dce_v11_0_hw_fini(void *handle) dce_v11_0_pageflip_interrupt_fini(adev); - flush_work(&adev->hotplug_work); + flush_delayed_work(&adev->hotplug_work); return 0; } @@ -3426,7 +3426,7 @@ static int dce_v11_0_hpd_irq(struct amdgpu_device *adev, if (disp_int & mask) { dce_v11_0_hpd_int_ack(adev, hpd); - schedule_work(&adev->hotplug_work); + schedule_delayed_work(&adev->hotplug_work, 0); DRM_DEBUG("IH: HPD%d\n", hpd + 1); } |