drm/amd/pm: Add support to set min ISP clocks

Add support to set ISP clocks for SMU v14.0.0. ISP driver
uses amdgpu_dpm_set_soft_freq_range() API to set clocks via
SMU interface than communicating with PMFW directly.

amdgpu_dpm_set_soft_freq_range() is updated to take in any
pp_clock_type than limiting to support only PP_SCLK to allow
ISP and other driver modules to set the min/max clocks. Any
clock specific restrictions are expected to be taken care in
SOC specific SMU implementations instead of generic amdgpu_dpm
and amdgpu_smu interfaces.

Reviewed-by: Xiaojian Du <xiaojian.du@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Pratap Nirujogi <pratap.nirujogi@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 4 insertions, 10 deletions

diff --git a/drivers/gpu/drm/amd/pm/amdgpu_dpm.c b/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
index 95f1fff442cb..71d986dd7a6e 100644
--- a/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
+++ b/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
@@ -853,22 +853,16 @@ int amdgpu_dpm_set_soft_freq_range(struct amdgpu_device *adev,
 				   uint32_t max)
 {
 	struct smu_context *smu = adev->powerplay.pp_handle;
-	int ret = 0;
-
-	if (type != PP_SCLK)
-		return -EINVAL;
 
 	if (!is_support_sw_smu(adev))
 		return -EOPNOTSUPP;
 
-	mutex_lock(&adev->pm.mutex);
-	ret = smu_set_soft_freq_range(smu,
-				      SMU_SCLK,
+	guard(mutex)(&adev->pm.mutex);
+
+	return smu_set_soft_freq_range(smu,
+				      type,
 				      min,
 				      max);
-	mutex_unlock(&adev->pm.mutex);
-
-	return ret;
 }
 
 int amdgpu_dpm_write_watermarks_table(struct amdgpu_device *adev)