[PATCH v2] drm/amd/pm: enable LCLK DS

[Quan, Evan]

[AMD Official Use Only - Internal Distribution Only]

Reviewed-by: Evan Quan <evan.quan at amd.com>

-----Original Message-----
From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> On Behalf Of Kenneth Feng
Sent: Sunday, February 7, 2021 11:16 AM
To: amd-gfx at lists.freedesktop.org
Cc: Feng, Kenneth <Kenneth.Feng at amd.com>
Subject: [PATCH v2] drm/amd/pm: enable LCLK DS

v1:
Enable LCLK deep sleep and it works if we enable ASPM:
modprobe amdgpu aspm=1

v2:
Add the amdgpu_aspm flag check

Signed-off-by: Kenneth Feng <kenneth.feng at amd.com>
---
 drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
index b9e47f3b0231..af73e1430af5 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
@@ -302,6 +302,9 @@ sienna_cichlid_get_allowed_feature_mask(struct smu_context *smu,
 if (smu->dc_controlled_by_gpio)
        *(uint64_t *)feature_mask |= FEATURE_MASK(FEATURE_ACDC_BIT);

+if (amdgpu_aspm == 1)
+*(uint64_t *)feature_mask |= FEATURE_MASK(FEATURE_DS_LCLK_BIT);
+
 return 0;
 }

--
2.17.1

_______________________________________________
amd-gfx mailing list
amd-gfx at lists.freedesktop.org
https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.freedesktop.org%2Fmailman%2Flistinfo%2Famd-gfx&data=04%7C01%7Cevan.quan%40amd.com%7Cefc5d77f73174dca068808d8cb16b903%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637482645750459900%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=e2RbIxZdsRt7eFr2hTgtCj6lABPanAZoyI7ZnorYzks%3D&reserved=0