Commit 47b67c99 authored by Lijo Lazar's avatar Lijo Lazar Committed by Alex Deucher
Browse files

drm/amd/pm: Disable fan control if not supported 



On arcturus, not all platforms use PMFW based fan control. On such
ASICs fan control by PMFW will be disabled in PPTable. Disable hwmon
knobs for fan control also as it is not possible to report or control
fan speed on such platforms through driver.

Signed-off-by: default avatarLijo Lazar <lijo.lazar@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent df9feb1a

drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c

+14 −0
Original line number Diff line number Diff line
@@ -436,6 +436,19 @@ static void arcturus_check_bxco_support(struct smu_context *smu) 
	}

}



static void arcturus_check_fan_support(struct smu_context *smu)

{

	struct smu_table_context *table_context = &smu->smu_table;

	PPTable_t *pptable = table_context->driver_pptable;



	/* No sort of fan control possible if PPTable has it disabled */

	smu->adev->pm.no_fan =

		!(pptable->FeaturesToRun[0] & FEATURE_FAN_CONTROL_MASK);

	if (smu->adev->pm.no_fan)

		dev_info_once(smu->adev->dev,

			      "PMFW based fan control disabled");

}



static int arcturus_check_powerplay_table(struct smu_context *smu)

{

	struct smu_table_context *table_context = &smu->smu_table;
@@ -443,6 +456,7 @@ static int arcturus_check_powerplay_table(struct smu_context *smu) 
		table_context->power_play_table;



	arcturus_check_bxco_support(smu);

	arcturus_check_fan_support(smu);



	table_context->thermal_controller_type =

		powerplay_table->thermal_controller_type;