hwmon: (aspeed-pwm-tacho) reduce fan_tach period

PATCH New Patrick Venture 1 participant 1 message Jun 21, 2017

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Hardware monitoring Arm/Aspeed machine support

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Patrick Venture

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2017-06-21 01:14 UTC #0 lore raw

PATCH 1/2 hwmon: (aspeed-pwm-tacho) reduce fan_tach period

Reduce the fan_tach period such that the fan controller uses a shorter period to measure the rpm.

Testing: This was tested on an ast2400 sitting on a quanta-q71l.

Signed-off-by Patrick Venture <[email protected]>

---
 drivers/hwmon/aspeed-pwm-tacho.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

drivers/hwmon/aspeed-pwm-tacho.c +1 -1

index 86e2ea8287a7..b2ab5612d8a4 100644
@@ -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 {

Signature · 1 line

2.13.1.611.g7e3b11ae1-goog