[3.11.y.z extended stable] Patch "hwmon: (w83l786ng) Fix fan speed control mode setting and reporting" has been added to staging queue
Luis Henriques
luis.henriques at canonical.com
Wed Dec 18 10:20:56 UTC 2013
This is a note to let you know that I have just added a patch titled
hwmon: (w83l786ng) Fix fan speed control mode setting and reporting
to the linux-3.11.y-queue branch of the 3.11.y.z extended stable tree
which can be found at:
http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.11.y-queue
If you, or anyone else, feels it should not be added to this tree, please
reply to this email.
For more information about the 3.11.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable
Thanks.
-Luis
------
>From 7cd6f1af02325414782da378915a24be76254efe Mon Sep 17 00:00:00 2001
From: Brian Carnes <bmcarnes at gmail.com>
Date: Thu, 12 Dec 2013 08:05:32 +0100
Subject: hwmon: (w83l786ng) Fix fan speed control mode setting and reporting
commit cf7559bc053471f32373d71d04a9aa19e0b48d59 upstream.
The wrong mask is used, which causes some fan speed control modes
(pwmX_enable) to be incorrectly reported, and some modes to be
impossible to set.
[JD: add subject and description.]
Signed-off-by: Brian Carnes <bmcarnes at gmail.com>
Signed-off-by: Jean Delvare <khali at linux-fr.org>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
drivers/hwmon/w83l786ng.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/hwmon/w83l786ng.c b/drivers/hwmon/w83l786ng.c
index edb06cd..f190219 100644
--- a/drivers/hwmon/w83l786ng.c
+++ b/drivers/hwmon/w83l786ng.c
@@ -510,7 +510,7 @@ store_pwm_enable(struct device *dev, struct device_attribute *attr,
mutex_lock(&data->update_lock);
reg = w83l786ng_read_value(client, W83L786NG_REG_FAN_CFG);
data->pwm_enable[nr] = val;
- reg &= ~(0x02 << W83L786NG_PWM_ENABLE_SHIFT[nr]);
+ reg &= ~(0x03 << W83L786NG_PWM_ENABLE_SHIFT[nr]);
reg |= (val - 1) << W83L786NG_PWM_ENABLE_SHIFT[nr];
w83l786ng_write_value(client, W83L786NG_REG_FAN_CFG, reg);
mutex_unlock(&data->update_lock);
@@ -776,7 +776,7 @@ static struct w83l786ng_data *w83l786ng_update_device(struct device *dev)
((pwmcfg >> W83L786NG_PWM_MODE_SHIFT[i]) & 1)
? 0 : 1;
data->pwm_enable[i] =
- ((pwmcfg >> W83L786NG_PWM_ENABLE_SHIFT[i]) & 2) + 1;
+ ((pwmcfg >> W83L786NG_PWM_ENABLE_SHIFT[i]) & 3) + 1;
data->pwm[i] = w83l786ng_read_value(client,
W83L786NG_REG_PWM[i]);
}
--
1.8.3.2
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