| Message ID | 1417712336-31070-1-git-send-email-nm@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Thu, Dec 04, 2014 at 10:58:56AM -0600, Nishanth Menon wrote: > Poweroff the fans when shutting down the system. Else, > echo '1' > /sys/class/hwmon/hwmon0/fan1_target; poweroff leaves the > fan running if the System power off does not drive the gpio expander > which might control the fan power supply. > > Signed-off-by: Nishanth Menon <nm@ti.com> > --- Applied to hwmon-next. Thanks, Guenter -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/hwmon/gpio-fan.c b/drivers/hwmon/gpio-fan.c index 7802eb2..36abf81 100644 --- a/drivers/hwmon/gpio-fan.c +++ b/drivers/hwmon/gpio-fan.c @@ -550,6 +550,14 @@ static int gpio_fan_probe(struct platform_device *pdev) return 0; } +static void gpio_fan_shutdown(struct platform_device *pdev) +{ + struct gpio_fan_data *fan_data = dev_get_drvdata(&pdev->dev); + + if (fan_data->ctrl) + set_fan_speed(fan_data, 0); +} + #ifdef CONFIG_PM_SLEEP static int gpio_fan_suspend(struct device *dev) { @@ -581,6 +589,7 @@ static SIMPLE_DEV_PM_OPS(gpio_fan_pm, gpio_fan_suspend, gpio_fan_resume); static struct platform_driver gpio_fan_driver = { .probe = gpio_fan_probe, + .shutdown = gpio_fan_shutdown, .driver = { .name = "gpio-fan", .pm = GPIO_FAN_PM,
Poweroff the fans when shutting down the system. Else, echo '1' > /sys/class/hwmon/hwmon0/fan1_target; poweroff leaves the fan running if the System power off does not drive the gpio expander which might control the fan power supply. Signed-off-by: Nishanth Menon <nm@ti.com> --- based on next-20141204 , but can rebase to required branch as needed. drivers/hwmon/gpio-fan.c | 9 +++++++++ 1 file changed, 9 insertions(+)