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authorBrian Carnes <bmcarnes@gmail.com>2013-12-12 08:05:32 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-12-20 07:34:19 -0800
commit433b0da5d2248024c21cf39ebfc7a02d0b1acf01 (patch)
tree8b243a6c6ac02c3a0d04a0e41f3d2d473379afc9
parentf843edd53fec967be6d41c81b1426ec82728934b (diff)
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@gmail.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/hwmon/w83l786ng.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/hwmon/w83l786ng.c b/drivers/hwmon/w83l786ng.c
index 5850b7706088..a97a62063356 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);
@@ -781,7 +781,7 @@ 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]);
}