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

[Quan, Evan]

[AMD Official Use Only - Internal Distribution Only]

Do you mean ASPM is the prerequisite for LCLK DS feature?
Then do we need something as below?
If (aspm = 1)
ppfeaturesmask |= FEATURE_MASK(FEATURE_DS_LCLK_BIT);

BR
Evan
-----Original Message-----
From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> On Behalf Of Kenneth Feng
Sent: Sunday, February 7, 2021 9:54 AM
To: amd-gfx at lists.freedesktop.org
Cc: Feng, Kenneth <Kenneth.Feng at amd.com>
Subject: [PATCH] drm/amd/pm: enable LCLK DS

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

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

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..d208a434c7cc 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
@@ -242,6 +242,7 @@ sienna_cichlid_get_allowed_feature_mask(struct smu_context *smu,
 | FEATURE_MASK(FEATURE_DS_DCEFCLK_BIT)
 | FEATURE_MASK(FEATURE_DS_FCLK_BIT)
 | FEATURE_MASK(FEATURE_DS_UCLK_BIT)
+| FEATURE_MASK(FEATURE_DS_LCLK_BIT)
 | FEATURE_MASK(FEATURE_FW_DSTATE_BIT)
 | FEATURE_MASK(FEATURE_DF_CSTATE_BIT)
 | FEATURE_MASK(FEATURE_RSMU_SMN_CG_BIT)
--
2.17.1

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