From: Likun Gao <Likun.Gao@xxxxxxx>
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>
Signed-off-by: Likun Gao <Likun.Gao@xxxxxxx>
Change-Id: If7c4148380ddb8a08aed06a8ba9afae98075947d
---
drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 8 ++++++--
1 file changed, 6 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 8e3e7a5bbffe..17a36a962e31 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -918,11 +918,15 @@ 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) &&
+ (adev->asic_type <= CHIP_DIMGREY_CAVEFISH))
+ ret = smu_system_features_control(smu, true);
+ return ret;
}
ret = smu_init_display_count(smu, 0);
--
2.25.1
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