diff options
| -rw-r--r-- | drivers/macintosh/therm_adt746x.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/macintosh/therm_adt746x.c b/drivers/macintosh/therm_adt746x.c index c0621d50c8a0..0ddf9044948a 100644 --- a/drivers/macintosh/therm_adt746x.c +++ b/drivers/macintosh/therm_adt746x.c @@ -37,6 +37,7 @@ #define CONFIG_REG 0x40 #define MANUAL_MASK 0xe0 #define AUTO_MASK 0x20 +#define INVERT_MASK 0x10 static u8 TEMP_REG[3] = {0x26, 0x25, 0x27}; /* local, sensor1, sensor2 */ static u8 LIMIT_REG[3] = {0x6b, 0x6a, 0x6c}; /* local, sensor1, sensor2 */ @@ -229,7 +230,8 @@ static void write_fan_speed(struct thermostat *th, int speed, int fan) if (speed >= 0) { manual = read_reg(th, MANUAL_MODE[fan]); - write_reg(th, MANUAL_MODE[fan], manual|MANUAL_MASK); + write_reg(th, MANUAL_MODE[fan], + (manual|MANUAL_MASK) & (~INVERT_MASK)); write_reg(th, FAN_SPD_SET[fan], speed); } else { /* back to automatic */ |