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authorIngo Molnar <mingo@elte.hu>2009-05-08 10:50:00 +0200
committerIngo Molnar <mingo@elte.hu>2009-05-08 10:50:00 +0200
commitf066a155334642b8a206eec625b1925d88c48aeb (patch)
treecb12975e60b70d1dae3b7397bab955de78a4d01e /drivers/input/touchscreen/ads7846.c
parentxen: add FIX_TEXT_POKE to fixmap (diff)
parentx86: xen, i386: reserve Xen pagetables (diff)
downloadlinux-f066a155334642b8a206eec625b1925d88c48aeb.tar.xz
linux-f066a155334642b8a206eec625b1925d88c48aeb.zip
Merge branch 'x86/urgent' into x86/xen
Conflicts: arch/frv/include/asm/pgtable.h arch/x86/include/asm/required-features.h arch/x86/xen/mmu.c Merge reason: x86/xen was on a .29 base still, move it to a fresher branch and pick up Xen fixes as well, plus resolve conflicts Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/input/touchscreen/ads7846.c')
-rw-r--r--drivers/input/touchscreen/ads7846.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index 056ac77e2cf0..2b01e56568f8 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -127,6 +127,8 @@ struct ads7846 {
void (*filter_cleanup)(void *data);
int (*get_pendown_state)(void);
int gpio_pendown;
+
+ void (*wait_for_sync)(void);
};
/* leave chip selected when we're done, for quicker re-select? */
@@ -511,6 +513,10 @@ static int get_pendown_state(struct ads7846 *ts)
return !gpio_get_value(ts->gpio_pendown);
}
+static void null_wait_for_sync(void)
+{
+}
+
/*
* PENIRQ only kicks the timer. The timer only reissues the SPI transfer,
* to retrieve touchscreen status.
@@ -686,6 +692,7 @@ static void ads7846_rx_val(void *ads)
default:
BUG();
}
+ ts->wait_for_sync();
status = spi_async(ts->spi, m);
if (status)
dev_err(&ts->spi->dev, "spi_async --> %d\n",
@@ -723,6 +730,7 @@ static enum hrtimer_restart ads7846_timer(struct hrtimer *handle)
} else {
/* pen is still down, continue with the measurement */
ts->msg_idx = 0;
+ ts->wait_for_sync();
status = spi_async(ts->spi, &ts->msg[0]);
if (status)
dev_err(&ts->spi->dev, "spi_async --> %d\n", status);
@@ -746,7 +754,7 @@ static irqreturn_t ads7846_irq(int irq, void *handle)
* that here. (The "generic irq" framework may help...)
*/
ts->irq_disabled = 1;
- disable_irq(ts->spi->irq);
+ disable_irq_nosync(ts->spi->irq);
ts->pending = 1;
hrtimer_start(&ts->timer, ktime_set(0, TS_POLL_DELAY),
HRTIMER_MODE_REL);
@@ -947,6 +955,8 @@ static int __devinit ads7846_probe(struct spi_device *spi)
ts->penirq_recheck_delay_usecs =
pdata->penirq_recheck_delay_usecs;
+ ts->wait_for_sync = pdata->wait_for_sync ? : null_wait_for_sync;
+
snprintf(ts->phys, sizeof(ts->phys), "%s/input0", dev_name(&spi->dev));
input_dev->name = "ADS784x Touchscreen";