From 421d35912766ecbf8fb9474bf78ec20bfc292589 Mon Sep 17 00:00:00 2001 From: Tim Harvey Date: Tue, 6 Jun 2023 08:30:04 -0700 Subject: [PATCH] hwmon: (gsc-hwmon) fix fan pwm temperature scaling [ Upstream commit a6d80df47ee2c69db99e4f2f8871aa4db154620b ] The GSC fan pwm temperature register is in centidegrees celcius but the Linux hwmon convention is to use milidegrees celcius. Fix the scaling. Fixes: 3bce5377ef66 ("hwmon: Add Gateworks System Controller support") Signed-off-by: Tim Harvey Link: https://lore.kernel.org/r/20230606153004.1448086-1-tharvey@gateworks.com Signed-off-by: Guenter Roeck Signed-off-by: Sasha Levin --- drivers/hwmon/gsc-hwmon.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/hwmon/gsc-hwmon.c b/drivers/hwmon/gsc-hwmon.c index b60ec95..74bfc21 100644 --- a/drivers/hwmon/gsc-hwmon.c +++ b/drivers/hwmon/gsc-hwmon.c @@ -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); -- 2.7.4