hwmon: (it87) Properly decode -128 degrees C temperature
The it87 driver is reporting -128 degrees C as +128 degrees C. That's not a terribly likely temperature value but let's still get it right, especially when it simplifies the code. Signed-off-by: Jean Delvare <khali@linux-fr.org>
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@ -213,7 +213,7 @@ static inline u16 FAN16_TO_REG(long rpm)
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#define TEMP_TO_REG(val) (SENSORS_LIMIT(((val)<0?(((val)-500)/1000):\
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((val)+500)/1000),-128,127))
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#define TEMP_FROM_REG(val) (((val)>0x80?(val)-0x100:(val))*1000)
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#define TEMP_FROM_REG(val) ((val) * 1000)
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#define PWM_TO_REG(val) ((val) >> 1)
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#define PWM_FROM_REG(val) (((val)&0x7f) << 1)
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@ -267,9 +267,9 @@ struct it87_data {
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u8 has_fan; /* Bitfield, fans enabled */
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u16 fan[5]; /* Register values, possibly combined */
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u16 fan_min[5]; /* Register values, possibly combined */
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u8 temp[3]; /* Register value */
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u8 temp_high[3]; /* Register value */
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u8 temp_low[3]; /* Register value */
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s8 temp[3]; /* Register value */
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s8 temp_high[3]; /* Register value */
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s8 temp_low[3]; /* Register value */
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u8 sensor; /* Register value */
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u8 fan_div[3]; /* Register encoding, shifted right */
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u8 vid; /* Register encoding, combined */
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