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Commit fdba2bb1 authored by Ranjith Lohithakshan's avatar Ranjith Lohithakshan Committed by Dmitry Torokhov
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Input: ads7846 - add wakeup support 



Add wakeup support to the ads7846 driver. Platforms can enable wakeup
capability by setting the wakeup flag in ads7846_platform_data. With this
patch the ads7846 driver can be used to wake the system from suspend.

Signed-off-by: default avatarRanjith Lohithakshan <ranjithl@ti.com>
Signed-off-by: default avatarDmitry Torokhov <dtor@mail.ru>
parent 04b4b88c

drivers/input/touchscreen/ads7846.c

+10 −0
Original line number Diff line number Diff line
@@ -822,6 +822,9 @@ static int ads7846_suspend(struct spi_device *spi, pm_message_t message) 


	spin_unlock_irq(&ts->lock);



	if (device_may_wakeup(&ts->spi->dev))

		enable_irq_wake(ts->spi->irq);



	return 0;



}
@@ -830,6 +833,9 @@ static int ads7846_resume(struct spi_device *spi) 
{

	struct ads7846 *ts = dev_get_drvdata(&spi->dev);



	if (device_may_wakeup(&ts->spi->dev))

		disable_irq_wake(ts->spi->irq);



	spin_lock_irq(&ts->lock);



	ts->is_suspended = 0;
@@ -1201,6 +1207,8 @@ static int __devinit ads7846_probe(struct spi_device *spi) 
	if (err)

		goto err_remove_attr_group;



	device_init_wakeup(&spi->dev, pdata->wakeup);



	return 0;



 err_remove_attr_group:
@@ -1230,6 +1238,8 @@ static int __devexit ads7846_remove(struct spi_device *spi) 
{

	struct ads7846		*ts = dev_get_drvdata(&spi->dev);



	device_init_wakeup(&spi->dev, false);



	ads784x_hwmon_unregister(spi, ts);

	input_unregister_device(ts->input);

include/linux/spi/ads7846.h

+1 −0
Original line number Diff line number Diff line
@@ -53,5 +53,6 @@ struct ads7846_platform_data { 
	int	(*filter)	(void *filter_data, int data_idx, int *val);

	void	(*filter_cleanup)(void *filter_data);

	void	(*wait_for_sync)(void);

	bool	wakeup;

};