diff options
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c index a9f68753ec7f..68548fbdee09 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c @@ -1120,12 +1120,19 @@ static ssize_t amdgpu_hwmon_set_pwm1(struct device *dev, struct amdgpu_device *adev = dev_get_drvdata(dev); int err; u32 value; + u32 pwm_mode; /* Can't adjust fan when the card is off */ if ((adev->flags & AMD_IS_PX) && (adev->ddev->switch_power_state != DRM_SWITCH_POWER_ON)) return -EINVAL; + pwm_mode = amdgpu_dpm_get_fan_control_mode(adev); + if (pwm_mode != AMD_FAN_CTRL_MANUAL) { + pr_info("manual fan speed control should be enabled first\n"); + return -EINVAL; + } + err = kstrtou32(buf, 10, &value); if (err) return err; |