Commit a6d80df4 authored by Tim Harvey's avatar Tim Harvey Committed by Guenter Roeck
Browse files

hwmon: (gsc-hwmon) fix fan pwm temperature scaling 



The GSC fan pwm temperature register is in centidegrees celcius but the
Linux hwmon convention is to use milidegrees celcius. Fix the scaling.

Fixes: 3bce5377 ("hwmon: Add Gateworks System Controller support")
Signed-off-by: default avatarTim Harvey <tharvey@gateworks.com>
Link: https://lore.kernel.org/r/20230606153004.1448086-1-tharvey@gateworks.com


Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 0babf89c

drivers/hwmon/gsc-hwmon.c

+3 −3
Original line number Diff line number Diff line
@@ -82,8 +82,8 @@ static ssize_t pwm_auto_point_temp_store(struct device *dev, 
	if (kstrtol(buf, 10, &temp))

		return -EINVAL;



	temp = clamp_val(temp, 0, 10000);

	temp = DIV_ROUND_CLOSEST(temp, 10);

	temp = clamp_val(temp, 0, 100000);

	temp = DIV_ROUND_CLOSEST(temp, 100);



	regs[0] = temp & 0xff;

	regs[1] = (temp >> 8) & 0xff;
@@ -100,7 +100,7 @@ static ssize_t pwm_auto_point_pwm_show(struct device *dev, 
{

	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);



	return sprintf(buf, "%d\n", 255 * (50 + (attr->index * 10)) / 100);

	return sprintf(buf, "%d\n", 255 * (50 + (attr->index * 10)));

}



static SENSOR_DEVICE_ATTR_RO(pwm1_auto_point1_pwm, pwm_auto_point_pwm, 0);