From: Patrick Venture <venture@google.com>
To: venture@google.com, joel@jms.id.au, linux@roeck-us.net
Cc: linux-hwmon@vger.kernel.org, emilyshaffer@google.com, peterh@google.com
Subject: [PATCH 1/2 v2] hwmon: (aspeed-pwm-tacho) reduce fan_tach period
Date: Fri, 23 Jun 2017 08:05:25 -0700 [thread overview]
Message-ID: <20170623150525.7014-1-venture@google.com> (raw)
Reduce the fan_tach period such that the fan controller uses a shorter
period to measure the rpm.
Testing: Tested on an ast2400 sitting on a quanta-q71l.
Signed-off-by: Patrick Venture <venture@google.com>
---
drivers/hwmon/aspeed-pwm-tacho.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/hwmon/aspeed-pwm-tacho.c b/drivers/hwmon/aspeed-pwm-tacho.c
index 86e2ea8287a7..b2ab5612d8a4 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 {
--
2.13.1.611.g7e3b11ae1-goog
next reply other threads:[~2017-06-23 15:05 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-23 15:05 Patrick Venture [this message]
2017-06-23 15:29 ` [PATCH 1/2 v2] hwmon: (aspeed-pwm-tacho) reduce fan_tach period Guenter Roeck
2017-06-23 19:33 ` Patrick Venture
2017-06-23 20:47 ` Guenter Roeck
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