[PATCH 016/138] drm/amd/powerplay: add interface to set min dcef deep sleep (v2)

[Huang Rui]

This patch adds interface to set min dcef deep sleep for smu.
It's to set min deep sleep dce fclk with bootup value from vbios via
SetMinDeepSleepDcefclk MSG.

v2: add detailed info to describe this function

Signed-off-by: Huang Rui <ray.huang at amd.com>
---
 drivers/gpu/drm/amd/powerplay/amdgpu_smu.c     | 8 ++++++++
 drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h | 3 +++
 2 files changed, 11 insertions(+)

diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
index 747b6b7..5e22b15 100644
--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
@@ -200,6 +200,14 @@ static int smu_smc_table_hw_init(struct smu_context *smu)
 	if (ret)
 		return ret;
 
+	/*
+	 * Set min deep sleep dce fclk with bootup value from vbios via
+	 * SetMinDeepSleepDcefclk MSG.
+	 */
+	ret = smu_set_min_dcef_deep_sleep(smu);
+	if (ret)
+		return ret;
+
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
index e7e9fec..90e80cd 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
@@ -46,6 +46,7 @@ struct smu_funcs
 	int (*populate_smc_pptable)(struct smu_context *smu);
 	int (*check_fw_version)(struct smu_context *smu);
 	int (*write_pptable)(struct smu_context *smu);
+	int (*set_min_dcef_deep_sleep)(struct smu_context *smu);
 };
 
 #define smu_init_microcode(smu) \
@@ -72,6 +73,8 @@ struct smu_funcs
 	((smu)->funcs->check_fw_version ? (smu)->funcs->check_fw_version((smu)) : 0)
 #define smu_write_pptable(smu) \
 	((smu)->funcs->write_pptable ? (smu)->funcs->write_pptable((smu)) : 0)
+#define smu_set_min_dcef_deep_sleep(smu) \
+	((smu)->funcs->set_min_dcef_deep_sleep ? (smu)->funcs->set_min_dcef_deep_sleep((smu)) : 0)
 
 
 extern const struct amd_ip_funcs smu_ip_funcs;
-- 
2.7.4