drm/amdgpu/dpm: add an implementation for get_vce_clock_state (v2)

Used by the non-powerplay dpm code.

v2: update to the new API
Reviewed-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.c

@@ -956,3 +956,12 @@ u8 amdgpu_encode_pci_lane_width(u32 lanes)
 
 	return encoded_lanes[lanes];
 }
+
+struct amd_vce_state*
+amdgpu_get_vce_clock_state(struct amdgpu_device *adev, unsigned idx)
+{
+	if (idx < adev->pm.dpm.num_of_vce_states)
+		return &adev->pm.dpm.vce_states[idx];
+
+	return NULL;
+}

drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.h

@@ -513,4 +513,7 @@ u16 amdgpu_get_pcie_lane_support(struct amdgpu_device *adev,
 				 u16 default_lanes);
 u8 amdgpu_encode_pci_lane_width(u32 lanes);
 
+struct amd_vce_state*
+amdgpu_get_vce_clock_state(struct amdgpu_device *adev, unsigned idx);
+
 #endif

drivers/gpu/drm/amd/amdgpu/ci_dpm.c

@@ -6644,6 +6644,7 @@ static const struct amdgpu_dpm_funcs ci_dpm_funcs = {
 	.set_sclk_od = ci_dpm_set_sclk_od,
 	.get_mclk_od = ci_dpm_get_mclk_od,
 	.set_mclk_od = ci_dpm_set_mclk_od,
+	.get_vce_clock_state = amdgpu_get_vce_clock_state,
 };
 
 static void ci_dpm_set_dpm_funcs(struct amdgpu_device *adev)

drivers/gpu/drm/amd/amdgpu/kv_dpm.c

@@ -3273,6 +3273,7 @@ static const struct amdgpu_dpm_funcs kv_dpm_funcs = {
 	.force_performance_level = &kv_dpm_force_performance_level,
 	.powergate_uvd = &kv_dpm_powergate_uvd,
 	.enable_bapm = &kv_dpm_enable_bapm,
+	.get_vce_clock_state = amdgpu_get_vce_clock_state,
 };
 
 static void kv_dpm_set_dpm_funcs(struct amdgpu_device *adev)

drivers/gpu/drm/amd/amdgpu/si_dpm.c

@@ -7991,6 +7991,7 @@ static const struct amdgpu_dpm_funcs si_dpm_funcs = {
 	.get_fan_control_mode = &si_dpm_get_fan_control_mode,
 	.set_fan_speed_percent = &si_dpm_set_fan_speed_percent,
 	.get_fan_speed_percent = &si_dpm_get_fan_speed_percent,
+	.get_vce_clock_state = amdgpu_get_vce_clock_state,
 };
 
 static void si_dpm_set_dpm_funcs(struct amdgpu_device *adev)