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authorLinus Torvalds <torvalds@linux-foundation.org>2010-03-14 21:13:54 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-14 21:13:54 +0300
commita818d8e43147f40864363456b37a00b819439307 (patch)
treec0a5139116747c2240f94c024e247a4efd1791c6 /drivers/input/touchscreen/ads7846.c
parentf901e753923192a7793e5d7591e2c03dcb252d68 (diff)
parent31968ecf584330b51a25b7bf881c2b632a02a3fb (diff)
downloadlinux-a818d8e43147f40864363456b37a00b819439307.tar.xz
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: i8042 - add ALDI/MEDION netbook E1222 to qurik reset table Input: ALPS - fix stuck buttons on some touchpads Input: wm831x-on - convert to use genirq Input: ads7846 - add wakeup support Input: appletouch - fix integer overflow issue Input: ad7877 - increase pen up imeout Input: ads7846 - add support for AD7843 parts Input: bf54x-keys - fix system hang when pressing a key Input: alps - add support for the touchpad on Toshiba Tecra A11-11L Input: remove BKL, fix input_open_file() locking Input: serio_raw - remove BKL Input: mousedev - remove BKL Input: add driver for TWL4030 vibrator device Input: enable remote wakeup for PNP i8042 keyboard ports Input: scancode in get/set_keycodes should be unsigned Input: i8042 - use platfrom_create_bundle() helper Input: wacom - merge out and in prox events Input: gamecon - fix off by one range check Input: wacom - replace WACOM_PKGLEN_PENABLED
Diffstat (limited to 'drivers/input/touchscreen/ads7846.c')
-rw-r--r--drivers/input/touchscreen/ads7846.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index 8b05d8e97543..532279cda0e4 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -36,6 +36,7 @@
* TSC2046 is just newer ads7846 silicon.
* Support for ads7843 tested on Atmel at91sam926x-EK.
* Support for ads7845 has only been stubbed in.
+ * Support for Analog Devices AD7873 and AD7843 tested.
*
* IRQ handling needs a workaround because of a shortcoming in handling
* edge triggered IRQs on some platforms like the OMAP1/2. These
@@ -821,6 +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;
}
@@ -829,6 +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;
@@ -984,6 +991,15 @@ static int __devinit ads7846_probe(struct spi_device *spi)
vref = pdata->keep_vref_on;
+ if (ts->model == 7873) {
+ /* The AD7873 is almost identical to the ADS7846
+ * keep VREF off during differential/ratiometric
+ * conversion modes
+ */
+ ts->model = 7846;
+ vref = 0;
+ }
+
/* set up the transfers to read touchscreen state; this assumes we
* use formula #2 for pressure, not #3.
*/
@@ -1191,6 +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:
@@ -1220,6 +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);