drm/amd/pm/powerplay/hwmgr/vega20_thermal: Fix some outdated function documentation

Fixes the following W=1 kernel build warning(s):

 drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/vega20_thermal.c:217: warning: Function parameter or member 'hwmgr' not described in 'vega20_thermal_get_temperature'
 drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/vega20_thermal.c:242: warning: Function parameter or member 'hwmgr' not described in 'vega20_thermal_set_temperature_range'
 drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/vega20_thermal.c:242: warning: Function parameter or member 'range' not described in 'vega20_thermal_set_temperature_range'
 drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/vega20_thermal.c:278: warning: Function parameter or member 'hwmgr' not described in 'vega20_thermal_enable_alert'
 drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/vega20_thermal.c:296: warning: Function parameter or member 'hwmgr' not described in 'vega20_thermal_disable_alert'
 drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/vega20_thermal.c:310: warning: Function parameter or member 'hwmgr' not described in 'vega20_thermal_stop_thermal_controller'
 drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/vega20_thermal.c:326: warning: Function parameter or member 'hwmgr' not described in 'vega20_thermal_setup_fan_table'

Cc: Evan Quan <evan.quan@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: amd-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega20_thermal.c

@@ -209,10 +209,10 @@ int vega20_fan_ctrl_set_fan_speed_rpm(struct pp_hwmgr *hwmgr, uint32_t speed)
 }
 
 /**
-* Reads the remote temperature from the SIslands thermal controller.
-*
-* @param    hwmgr The address of the hardware manager.
-*/
+ * vega20_thermal_get_temperature - Reads the remote temperature from the SIslands thermal controller.
+ *
+ * @hwmgr: The address of the hardware manager.
+ */
 int vega20_thermal_get_temperature(struct pp_hwmgr *hwmgr)
 {
 	struct amdgpu_device *adev = hwmgr->adev;
@@ -230,13 +230,12 @@ int vega20_thermal_get_temperature(struct pp_hwmgr *hwmgr)
 }
 
 /**
-* Set the requested temperature range for high and low alert signals
-*
-* @param    hwmgr The address of the hardware manager.
-* @param    range Temperature range to be programmed for
-*           high and low alert signals
-* @exception PP_Result_BadInput if the input data is not valid.
-*/
+ * vega20_thermal_set_temperature_range - Set the requested temperature range for high and low alert signals
+ *
+ * @hwmgr: The address of the hardware manager.
+ * @range: Temperature range to be programmed for high and low alert signals
+ * Exception: PP_Result_BadInput if the input data is not valid.
+ */
 static int vega20_thermal_set_temperature_range(struct pp_hwmgr *hwmgr,
 		struct PP_TemperatureRange *range)
 {
@@ -270,10 +269,10 @@ static int vega20_thermal_set_temperature_range(struct pp_hwmgr *hwmgr,
 }
 
 /**
-* Enable thermal alerts on the RV770 thermal controller.
-*
-* @param    hwmgr The address of the hardware manager.
-*/
+ * vega20_thermal_enable_alert - Enable thermal alerts on the RV770 thermal controller.
+ *
+ * @hwmgr: The address of the hardware manager.
+ */
 static int vega20_thermal_enable_alert(struct pp_hwmgr *hwmgr)
 {
 	struct amdgpu_device *adev = hwmgr->adev;
@@ -289,9 +288,9 @@ static int vega20_thermal_enable_alert(struct pp_hwmgr *hwmgr)
 }
 
 /**
-* Disable thermal alerts on the RV770 thermal controller.
-* @param    hwmgr The address of the hardware manager.
-*/
+ * vega20_thermal_disable_alert - Disable thermal alerts on the RV770 thermal controller.
+ * @hwmgr: The address of the hardware manager.
+ */
 int vega20_thermal_disable_alert(struct pp_hwmgr *hwmgr)
 {
 	struct amdgpu_device *adev = hwmgr->adev;
@@ -302,10 +301,10 @@ int vega20_thermal_disable_alert(struct pp_hwmgr *hwmgr)
 }
 
 /**
-* Uninitialize the thermal controller.
-* Currently just disables alerts.
-* @param    hwmgr The address of the hardware manager.
-*/
+ * vega20_thermal_stop_thermal_controller - Uninitialize the thermal controller.
+ * Currently just disables alerts.
+ * @hwmgr: The address of the hardware manager.
+ */
 int vega20_thermal_stop_thermal_controller(struct pp_hwmgr *hwmgr)
 {
 	int result = vega20_thermal_disable_alert(hwmgr);
@@ -314,14 +313,9 @@ int vega20_thermal_stop_thermal_controller(struct pp_hwmgr *hwmgr)
 }
 
 /**
-* Set up the fan table to control the fan using the SMC.
-* @param    hwmgr  the address of the powerplay hardware manager.
-* @param    pInput the pointer to input data
-* @param    pOutput the pointer to output data
-* @param    pStorage the pointer to temporary storage
-* @param    Result the last failure code
-* @return   result from set temperature range routine
-*/
+ * vega20_thermal_setup_fan_table - Set up the fan table to control the fan using the SMC.
+ * @hwmgr:  the address of the powerplay hardware manager.
+ */
 static int vega20_thermal_setup_fan_table(struct pp_hwmgr *hwmgr)
 {
 	int ret;