Commit 9b92d1ec authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/radeon/dpm: grab fan info from vbios 



Required for fan control support.

Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 507d0ca7

drivers/gpu/drm/radeon/radeon.h

+5 −0
Original line number Diff line number Diff line
@@ -1623,6 +1623,11 @@ struct radeon_pm { 
	/* internal thermal controller on rv6xx+ */

	enum radeon_int_thermal_type int_thermal_type;

	struct device	        *int_hwmon_dev;

	/* fan control parameters */

	bool                    no_fan;

	u8                      fan_pulses_per_revolution;

	u8                      fan_min_rpm;

	u8                      fan_max_rpm;

	/* dpm */

	bool                    dpm_enabled;

	struct radeon_dpm       dpm;

drivers/gpu/drm/radeon/radeon_atombios.c

+8 −0
Original line number Diff line number Diff line
@@ -2248,6 +2248,14 @@ static void radeon_atombios_add_pplib_thermal_controller(struct radeon_device *r 


	/* add the i2c bus for thermal/fan chip */

	if (controller->ucType > 0) {

		if (controller->ucFanParameters & ATOM_PP_FANPARAMETERS_NOFAN)

			rdev->pm.no_fan = true;

		rdev->pm.fan_pulses_per_revolution =

			controller->ucFanParameters & ATOM_PP_FANPARAMETERS_TACHOMETER_PULSES_PER_REVOLUTION_MASK;

		if (rdev->pm.fan_pulses_per_revolution) {

			rdev->pm.fan_min_rpm = controller->ucFanMinRPM;

			rdev->pm.fan_max_rpm = controller->ucFanMaxRPM;

		}

		if (controller->ucType == ATOM_PP_THERMALCONTROLLER_RV6xx) {

			DRM_INFO("Internal thermal controller %s fan control\n",

				 (controller->ucFanParameters &