Some features are still disabled after runtime pm resume. This can take the hardware back.
Unlike other projects, this doesn't need pptable retransfer.
Signed-off-by: Kenneth Feng <kenneth.feng@xxxxxxx>
---
drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
index 39990790ed67..ebd50f144c5d 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -914,11 +914,14 @@ static int smu_smc_hw_setup(struct smu_context *smu)
{
struct amdgpu_device *adev = smu->adev;
uint32_t pcie_gen = 0, pcie_width = 0;
- int ret;
+ int ret = 0;
if (adev->in_suspend && smu_is_dpm_running(smu)) {
dev_info(adev->dev, "dpm has been enabled\n");
- return 0;
+ /* this is needed specifically */
+ if (adev->asic_type == CHIP_SIENNA_CICHLID)
+ ret = smu_system_features_control(smu, true);
+ return ret;
}
ret = smu_init_display_count(smu, 0);
--
2.17.1
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