Commit 16fb4dca authored by Yury Zhuravlev's avatar Yury Zhuravlev Committed by Alex Deucher
Browse files

drm/amdgpu: getting fan speed pwm for vega10 properly 



Instead of using RPM speed, we will use a function from vega20 based on PWM registers.

Reviewed-by: default avatarEvan Quan <evan.quan@amd.com>
Signed-off-by: default avatarYury Zhuravlev <stalkerg@gmail.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent d4423fee

drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega10_thermal.c

+12 −13
Original line number Diff line number Diff line
@@ -67,22 +67,21 @@ int vega10_fan_ctrl_get_fan_speed_info(struct pp_hwmgr *hwmgr, 
int vega10_fan_ctrl_get_fan_speed_pwm(struct pp_hwmgr *hwmgr,

		uint32_t *speed)

{

	uint32_t current_rpm;

	uint32_t percent = 0;



	if (hwmgr->thermal_controller.fanInfo.bNoFan)

		return 0;

	struct amdgpu_device *adev = hwmgr->adev;

	uint32_t duty100, duty;

	uint64_t tmp64;



	if (vega10_get_current_rpm(hwmgr, &current_rpm))

		return -1;

	duty100 = REG_GET_FIELD(RREG32_SOC15(THM, 0, mmCG_FDO_CTRL1),

				CG_FDO_CTRL1, FMAX_DUTY100);

	duty = REG_GET_FIELD(RREG32_SOC15(THM, 0, mmCG_THERMAL_STATUS),

				CG_THERMAL_STATUS, FDO_PWM_DUTY);



	if (hwmgr->thermal_controller.

			advanceFanControlParameters.usMaxFanRPM != 0)

		percent = current_rpm * 255 /

			hwmgr->thermal_controller.

			advanceFanControlParameters.usMaxFanRPM;

	if (!duty100)

		return -EINVAL;



	*speed = MIN(percent, 255);

	tmp64 = (uint64_t)duty * 255;

	do_div(tmp64, duty100);

	*speed = MIN((uint32_t)tmp64, 255);



	return 0;

}