[PATCH] hwmon: (npcm-750-pwm-fan): Change initial pwm target to 255

Kun Yi kunyi at google.com
Tue Oct 9 08:49:25 AEDT 2018


Change initial PWM target to 255 to prevent overheating, for example
when BMC hangs in userspace or when userspace fan control application is
not implemented yet.

Signed-off-by: Kun Yi <kunyi at google.com>
---
 drivers/hwmon/npcm750-pwm-fan.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwmon/npcm750-pwm-fan.c b/drivers/hwmon/npcm750-pwm-fan.c
index 96634fd54e0b..c0fab54c0094 100644
--- a/drivers/hwmon/npcm750-pwm-fan.c
+++ b/drivers/hwmon/npcm750-pwm-fan.c
@@ -52,7 +52,7 @@
 
 /* Define the Counter Register, value = 100 for match 100% */
 #define NPCM7XX_PWM_COUNTER_DEFAULT_NUM		255
-#define NPCM7XX_PWM_CMR_DEFAULT_NUM		127
+#define NPCM7XX_PWM_CMR_DEFAULT_NUM		255
 #define NPCM7XX_PWM_CMR_MAX			255
 
 /* default all PWM channels PRESCALE2 = 1 */
-- 
2.19.0.605.g01d371f741-goog



More information about the openbmc mailing list