On 6/3/2021 10:26 AM, Evan Quan wrote:
On driver loading, the ASIC is in D0 state. The bundled
audio function should be in the same state also.
Change-Id: I136e196be7633e95883a7f6c33963f7583e9bad1
Signed-off-by: Evan Quan <evan.quan@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index c354ffa62483..9d497b4f8e34 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -137,6 +137,7 @@ int amdgpu_driver_load_kms(struct amdgpu_device *adev, unsigned long flags)
struct drm_device *dev;
struct pci_dev *parent;
int r, acpi_status;
+ struct pci_dev *p = NULL;
dev = adev_to_drm(adev);
@@ -212,9 +213,22 @@ int amdgpu_driver_load_kms(struct amdgpu_device *adev, unsigned long flags)
DPM_FLAG_MAY_SKIP_RESUME);
pm_runtime_use_autosuspend(dev->dev);
pm_runtime_set_autosuspend_delay(dev->dev, 5000);
+
pm_runtime_allow(dev->dev);
+
pm_runtime_mark_last_busy(dev->dev);
pm_runtime_put_autosuspend(dev->dev);
+
+ p = pci_get_domain_bus_and_slot(pci_domain_nr(adev->pdev->bus),
+ adev->pdev->bus->number, 1);
For the sake of readability, it's better to wrap this as get_audio_dev
or similar.
Thanks,
Lijo
+ if (p) {
+ pm_runtime_get_sync(&p->dev);
+
+ pm_runtime_mark_last_busy(&p->dev);
+ pm_runtime_put_autosuspend(&p->dev);
+
+ pci_dev_put(p);
+ }
}
if (amdgpu_acpi_smart_shift_update(dev, AMDGPU_SS_DRV_LOAD))
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