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-rw-r--r--drivers/hwmon/aspeed-pwm-tacho.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/hwmon/aspeed-pwm-tacho.c b/drivers/hwmon/aspeed-pwm-tacho.c
index 86e2ea8..b2ab561 100644
--- a/drivers/hwmon/aspeed-pwm-tacho.c
+++ b/drivers/hwmon/aspeed-pwm-tacho.c
@@ -160,7 +160,7 @@
* 11: reserved.
*/
#define M_TACH_MODE 0x02 /* 10b */
-#define M_TACH_UNIT 0x1000
+#define M_TACH_UNIT 0x00c0
#define INIT_FAN_CTRL 0xFF
struct aspeed_pwm_tacho_data {
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