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hwmon: (gsc-hwmon) Scale temperature to millidegrees

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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: 3bce5377ef ("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>
This commit is contained in:
Tim Harvey 2020-08-27 10:20:24 -07:00 committed by Guenter Roeck
parent cecf7560f0
commit c1ae18d313
1 changed files with 1 additions and 0 deletions
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1
drivers/hwmon/gsc-hwmon.c
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@ -172,6 +172,7 @@ gsc_hwmon_read(struct device *dev, enum hwmon_sensor_types type, u32 attr,
case mode_temperature: case mode_temperature:
if (tmp > 0x8000) if (tmp > 0x8000)
tmp -= 0xffff; tmp -= 0xffff;
tmp *= 100; /* convert to millidegrees celsius */
break; break;
case mode_voltage_raw: case mode_voltage_raw:
tmp = clamp_val(tmp, 0, BIT(GSC_HWMON_RESOLUTION)); tmp = clamp_val(tmp, 0, BIT(GSC_HWMON_RESOLUTION));