On Sun, Jul 28, 2024 at 11:17:49PM +0200, Heiko Stuebner wrote:
> The MCU can be found on network-attached-storage devices made by QNAP
> and provides access to fan control including reading back its RPM as
> well as reading the temperature of the NAS case.
>
> Signed-off-by: Heiko Stuebner <heiko@xxxxxxxxx>
Minor comment inline, in case you resend, otherwise
Acked-by: Guenter Roeck <linux@xxxxxxxxxxxx>
> +static int qnap_mcu_hwmon_write(struct device *dev, enum hwmon_sensor_types type,
> + u32 attr, int channel, long val)
> +{
> + struct qnap_mcu_hwmon *hwm = dev_get_drvdata(dev);
> +
> + switch (attr) {
> + case hwmon_pwm_input:
> + if (val < 0 || val > 255)
> + return -EINVAL;
> +
> + if (val < hwm->pwm_min)
> + val = hwm->pwm_min;
> +
> + if (val > hwm->pwm_max)
> + val = hwm->pwm_max;
> +
val = clamp_val(val, hwm->pwm_min, hwm->pwm_max);
Guenter
