[PATCH] drm/amd/pm: add deep sleep control for uclk and fclk

[Deucher, Alexander]

[AMD Public Use]

Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
________________________________
From: Quan, Evan <Evan.Quan at amd.com>
Sent: Thursday, December 10, 2020 3:44 AM
To: amd-gfx at lists.freedesktop.org <amd-gfx at lists.freedesktop.org>
Cc: Deucher, Alexander <Alexander.Deucher at amd.com>; Quan, Evan <Evan.Quan at amd.com>
Subject: [PATCH] drm/amd/pm: add deep sleep control for uclk and fclk

These are supported by Sienna Cichlid and should be
taken into consideration during DS control.

Change-Id: I93ed67ae863a91b75d6dfecd87e74029ffafd302
Signed-off-by: Evan Quan <evan.quan at amd.com>
---
 drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c
index 45ecd0386e9f..0372cb83cdd9 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c
@@ -2087,6 +2087,22 @@ int smu_v11_0_deep_sleep_control(struct smu_context *smu,
                 }
         }

+       if (smu_cmn_feature_is_supported(smu, SMU_FEATURE_DS_UCLK_BIT)) {
+               ret = smu_cmn_feature_set_enabled(smu, SMU_FEATURE_DS_UCLK_BIT, enablement);
+               if (ret) {
+                       dev_err(adev->dev, "Failed to %s UCLK DS!\n", enablement ? "enable" : "disable");
+                       return ret;
+               }
+       }
+
+       if (smu_cmn_feature_is_supported(smu, SMU_FEATURE_DS_FCLK_BIT)) {
+               ret = smu_cmn_feature_set_enabled(smu, SMU_FEATURE_DS_FCLK_BIT, enablement);
+               if (ret) {
+                       dev_err(adev->dev, "Failed to %s FCLK DS!\n", enablement ? "enable" : "disable");
+                       return ret;
+               }
+       }
+
         if (smu_cmn_feature_is_supported(smu, SMU_FEATURE_DS_SOCCLK_BIT)) {
                 ret = smu_cmn_feature_set_enabled(smu, SMU_FEATURE_DS_SOCCLK_BIT, enablement);
                 if (ret) {
--
2.29.0

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