commit 241dbbb1fb21bfff0c46c6873cee5c7923d05378
author Evan Quan <evan.quan@amd.com> Wed Oct 17 16:36:02 2018 +0800
committer Alex Deucher <alexander.deucher@amd.com> Mon Oct 22 14:40:30 2018 -0500
tree 97863a380f7b8aed1735d377fde567bcccfa0bf8
parent f2bfc71aee75feff33ca659322b72ffeed5a243d

drm/amd/powerplay: error out when force clock level under auto dpm mode V2

Forcing clock level is supported under manual dpm mode only. Error out
when trying to set under manual mode. Instead of doing nothing and
reporting success.

V2: update for mclk/pcie clock level settings also

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
index 94055a4..59cc678 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
@@ -704,7 +704,10 @@ static ssize_t amdgpu_set_pp_dpm_sclk(struct device *dev,
 		return ret;
 
 	if (adev->powerplay.pp_funcs->force_clock_level)
-		amdgpu_dpm_force_clock_level(adev, PP_SCLK, mask);
+		ret = amdgpu_dpm_force_clock_level(adev, PP_SCLK, mask);
+
+	if (ret)
+		return -EINVAL;
 
 	return count;
 }
@@ -737,7 +740,10 @@ static ssize_t amdgpu_set_pp_dpm_mclk(struct device *dev,
 		return ret;
 
 	if (adev->powerplay.pp_funcs->force_clock_level)
-		amdgpu_dpm_force_clock_level(adev, PP_MCLK, mask);
+		ret = amdgpu_dpm_force_clock_level(adev, PP_MCLK, mask);
+
+	if (ret)
+		return -EINVAL;
 
 	return count;
 }
@@ -770,7 +776,10 @@ static ssize_t amdgpu_set_pp_dpm_pcie(struct device *dev,
 		return ret;
 
 	if (adev->powerplay.pp_funcs->force_clock_level)
-		amdgpu_dpm_force_clock_level(adev, PP_PCIE, mask);
+		ret = amdgpu_dpm_force_clock_level(adev, PP_PCIE, mask);
+
+	if (ret)
+		return -EINVAL;
 
 	return count;
 }