This bit would get enabled sometimes (probably after suspend/resume), so the
fan would run at full speed below the temperature thresholds, but slow down and
eventually stop if temperatures rose above the thresholds... not exactly what
you want.
Signed-off-by: Michel Dänzer <mic...@daenzer.net>
---
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 82607ad..321eaad 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 */
--
1.6.3
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