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hwmon: (ina209) Handled signed registers

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The shunt voltage and current registers are signed 16-bit values so
handle them as such.

Signed-off-by: Joe Schaack <jschaack@xes-inc.com>
Reviewed-by: Aaron Sierra <asierra@xes-inc.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Joe Schaack 2017-04-18 07:15:50 -05:00 committed by Guenter Roeck
parent a02c24a321
commit bdaf9c40b2
1 changed files with 2 additions and 2 deletions
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4
drivers/hwmon/ina209.c
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@ -117,7 +117,7 @@ static long ina209_from_reg(const u8 reg, const u16 val)
case INA209_SHUNT_VOLTAGE_POS_WARN:
case INA209_SHUNT_VOLTAGE_NEG_WARN:
/* LSB=10 uV. Convert to mV. */
return DIV_ROUND_CLOSEST(val, 100);
return DIV_ROUND_CLOSEST((s16)val, 100);
case INA209_BUS_VOLTAGE:
case INA209_BUS_VOLTAGE_MAX_PEAK:
@ -146,7 +146,7 @@ static long ina209_from_reg(const u8 reg, const u16 val)
case INA209_CURRENT:
/* LSB=1 mA (selected). Is in mA */
return val;
return (s16)val;
}
/* programmer goofed */