This is a note to let you know that I've just added the patch titled
hwmon: (w83627ehf) Disable setting DC mode for pwm2, pwm3 on NCT6776F
to the 3.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
hwmon-w83627ehf-disable-setting-dc-mode-for-pwm2-pwm3-on-nct6776f.patch
and it can be found in the queue-3.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From ad77c3e1808f07fa70f707b1c92a683b7c7d3f85 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <[email protected]>
Date: Fri, 27 Jan 2012 17:56:06 -0800
Subject: hwmon: (w83627ehf) Disable setting DC mode for pwm2, pwm3 on NCT6776F
From: Guenter Roeck <[email protected]>
commit ad77c3e1808f07fa70f707b1c92a683b7c7d3f85 upstream.
NCT6776F only supports pwm mode for pwm2 and pwm3. Return error if an attempt
is made to set those pwm channels to DC mode.
Signed-off-by: Guenter Roeck <[email protected]>
Acked-by: Jean Delvare <[email protected]>
Signed-off-by: Guenter Roeck <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/hwmon/w83627ehf.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/drivers/hwmon/w83627ehf.c
+++ b/drivers/hwmon/w83627ehf.c
@@ -1295,6 +1295,7 @@ store_pwm_mode(struct device *dev, struc
{
struct w83627ehf_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+ struct w83627ehf_sio_data *sio_data = dev->platform_data;
int nr = sensor_attr->index;
unsigned long val;
int err;
@@ -1306,6 +1307,11 @@ store_pwm_mode(struct device *dev, struc
if (val > 1)
return -EINVAL;
+
+ /* On NCT67766F, DC mode is only supported for pwm1 */
+ if (sio_data->kind == nct6776 && nr && val != 1)
+ return -EINVAL;
+
mutex_lock(&data->update_lock);
reg = w83627ehf_read_value(data, W83627EHF_REG_PWM_ENABLE[nr]);
data->pwm_mode[nr] = val;
Patches currently in stable-queue which might be from [email protected] are
queue-3.0/hwmon-w83627ehf-disable-setting-dc-mode-for-pwm2-pwm3-on-nct6776f.patch
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