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| author | Ranjith Lohithakshan <ranjithl@ti.com> | 2010-03-11 08:41:22 +0100 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2010-03-11 09:02:43 +0100 |
| commit | fdba2bb1f2eed85085a0fe154e1acb82de3239f7 (patch) | |
| tree | d2a8d754b81242e65b08162217303eafd1ccd770 | |
| parent | Input: appletouch - fix integer overflow issue (diff) | |
| download | linux-fdba2bb1f2eed85085a0fe154e1acb82de3239f7.tar.xz linux-fdba2bb1f2eed85085a0fe154e1acb82de3239f7.zip | |
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: Ranjith Lohithakshan <ranjithl@ti.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
| -rw-r--r-- | drivers/input/touchscreen/ads7846.c | 10 | ||||
| -rw-r--r-- | include/linux/spi/ads7846.h | 1 |
2 files changed, 11 insertions, 0 deletions
diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c index d187be05955f..532279cda0e4 100644 --- a/drivers/input/touchscreen/ads7846.c +++ b/drivers/input/touchscreen/ads7846.c @@ -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); diff --git a/include/linux/spi/ads7846.h b/include/linux/spi/ads7846.h index 5710c15d394a..b4ae570d3c98 100644 --- a/include/linux/spi/ads7846.h +++ b/include/linux/spi/ads7846.h @@ -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; }; |