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drm/amdgpu: getting fan speed pwm for vega10 properly

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

Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Yury Zhuravlev <stalkerg@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Yury Zhuravlev 2022-09-18 16:23:15 +09:00 committed by Alex Deucher
parent d4423feeb7
commit 16fb4dca95
1 changed files with 12 additions and 13 deletions
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25
drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega10_thermal.c
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@ -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;
struct amdgpu_device *adev = hwmgr->adev;
uint32_t duty100, duty;
uint64_t tmp64;
if (hwmgr->thermal_controller.fanInfo.bNoFan)
return 0;
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 (vega10_get_current_rpm(hwmgr, &current_rpm))
return -1;
if (!duty100)
return -EINVAL;
if (hwmgr->thermal_controller.
advanceFanControlParameters.usMaxFanRPM != 0)
percent = current_rpm * 255 /
hwmgr->thermal_controller.
advanceFanControlParameters.usMaxFanRPM;
*speed = MIN(percent, 255);
tmp64 = (uint64_t)duty * 255;
do_div(tmp64, duty100);
*speed = MIN((uint32_t)tmp64, 255);
return 0;
}