drm/amd/powerplay: implement pwm1 hwmon interface for SMU11 (v2)
added main functions:
get_fan_speed_percent
set_fan_speed_percent.
added dependent functions:
smc_fan_control
set_fan_static_mode
get_fan_speed_percent
v2: fix coding style issue
Signed-off-by: Chengming Gui <[email protected]>
Reviewed-by: Huang Rui <[email protected]>
Reviewed-by: Alex Deucher <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
index c3508a7..284d28a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
@@ -1444,8 +1444,10 @@ static ssize_t amdgpu_hwmon_set_pwm1(struct device *dev,
if ((adev->flags & AMD_IS_PX) &&
(adev->ddev->switch_power_state != DRM_SWITCH_POWER_ON))
return -EINVAL;
-
- pwm_mode = amdgpu_dpm_get_fan_control_mode(adev);
+ if (is_support_sw_smu(adev))
+ pwm_mode = smu_get_fan_control_mode(&adev->smu);
+ else
+ pwm_mode = amdgpu_dpm_get_fan_control_mode(adev);
if (pwm_mode != AMD_FAN_CTRL_MANUAL) {
pr_info("manual fan speed control should be enabled first\n");
return -EINVAL;
@@ -1457,7 +1459,11 @@ static ssize_t amdgpu_hwmon_set_pwm1(struct device *dev,
value = (value * 100) / 255;
- if (adev->powerplay.pp_funcs->set_fan_speed_percent) {
+ if (is_support_sw_smu(adev)) {
+ err = smu_set_fan_speed_percent(&adev->smu, value);
+ if (err)
+ return err;
+ } else if (adev->powerplay.pp_funcs->set_fan_speed_percent) {
err = amdgpu_dpm_set_fan_speed_percent(adev, value);
if (err)
return err;
@@ -1479,7 +1485,11 @@ static ssize_t amdgpu_hwmon_get_pwm1(struct device *dev,
(adev->ddev->switch_power_state != DRM_SWITCH_POWER_ON))
return -EINVAL;
- if (adev->powerplay.pp_funcs->get_fan_speed_percent) {
+ if (is_support_sw_smu(adev)) {
+ err = smu_get_fan_speed_percent(&adev->smu, &speed);
+ if (err)
+ return err;
+ } else if (adev->powerplay.pp_funcs->get_fan_speed_percent) {
err = amdgpu_dpm_get_fan_speed_percent(adev, &speed);
if (err)
return err;
