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hwmon: (gsc-hwmon) Scale temperature to millidegrees
author
Tim Harvey
<tharvey@gateworks.com>
Thu, 27 Aug 2020 17:20:24 +0000
(10:20 -0700)
committer
Guenter Roeck
<linux@roeck-us.net>
Thu, 27 Aug 2020 19:47:55 +0000
(12:47 -0700)
The GSC registers report temperature in decidegrees celcius so we
need to scale it to represent the hwmon sysfs API of millidegrees.
Cc: stable@vger.kernel.org
Fixes:
3bce5377ef66
("hwmon: Add Gateworks System Controller support")
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Link:
https://lore.kernel.org/r/1598548824-16898-1-git-send-email-tharvey@gateworks.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
drivers/hwmon/gsc-hwmon.c
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diff --git
a/drivers/hwmon/gsc-hwmon.c
b/drivers/hwmon/gsc-hwmon.c
index
3dfe2ca
..
c6d4567
100644
(file)
--- a/
drivers/hwmon/gsc-hwmon.c
+++ b/
drivers/hwmon/gsc-hwmon.c
@@
-172,6
+172,7
@@
gsc_hwmon_read(struct device *dev, enum hwmon_sensor_types type, u32 attr,
case mode_temperature:
if (tmp > 0x8000)
tmp -= 0xffff;
+ tmp *= 100; /* convert to millidegrees celsius */
break;
case mode_voltage_raw:
tmp = clamp_val(tmp, 0, BIT(GSC_HWMON_RESOLUTION));