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: tsc2005 - fix locking issue
  Input: tsc2005 - use relative jiffies to schedule the watchdog
  Input: tsc2005 - driver should depend on GENERIC_HARDIRQS

2 files changed, 14 insertions, 6 deletions

diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 112ec55f2939..434fd800cd24 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -641,7 +641,7 @@ config TOUCHSCREEN_TOUCHIT213
 
 config TOUCHSCREEN_TSC2005
         tristate "TSC2005 based touchscreens"
-        depends on SPI_MASTER
+        depends on SPI_MASTER && GENERIC_HARDIRQS
         help
           Say Y here if you have a TSC2005 based touchscreen.
 
diff --git a/drivers/input/touchscreen/tsc2005.c b/drivers/input/touchscreen/tsc2005.c
index 87420616efa4..cbf0ff322676 100644
--- a/drivers/input/touchscreen/tsc2005.c
+++ b/drivers/input/touchscreen/tsc2005.c
@@ -358,7 +358,7 @@ static void __tsc2005_enable(struct tsc2005 *ts)
 	if (ts->esd_timeout && ts->set_reset) {
 		ts->last_valid_interrupt = jiffies;
 		schedule_delayed_work(&ts->esd_work,
-				round_jiffies(jiffies +
+				round_jiffies_relative(
 					msecs_to_jiffies(ts->esd_timeout)));
 	}
 
@@ -477,7 +477,14 @@ static void tsc2005_esd_work(struct work_struct *work)
 	int error;
 	u16 r;
 
-	mutex_lock(&ts->mutex);
+	if (!mutex_trylock(&ts->mutex)) {
+		/*
+		 * If the mutex is taken, it means that disable or enable is in
+		 * progress. In that case just reschedule the work. If the work
+		 * is not needed, it will be canceled by disable.
+		 */
+		goto reschedule;
+	}
 
 	if (time_is_after_jiffies(ts->last_valid_interrupt +
 				  msecs_to_jiffies(ts->esd_timeout)))
@@ -510,11 +517,12 @@ static void tsc2005_esd_work(struct work_struct *work)
 	tsc2005_start_scan(ts);
 
 out:
+	mutex_unlock(&ts->mutex);
+reschedule:
 	/* re-arm the watchdog */
 	schedule_delayed_work(&ts->esd_work,
-			      round_jiffies(jiffies +
+			      round_jiffies_relative(
 					msecs_to_jiffies(ts->esd_timeout)));
-	mutex_unlock(&ts->mutex);
 }
 
 static int tsc2005_open(struct input_dev *input)
@@ -663,7 +671,7 @@ static int __devinit tsc2005_probe(struct spi_device *spi)
 		goto err_remove_sysfs;
 	}
 
-	set_irq_wake(spi->irq, 1);
+	irq_set_irq_wake(spi->irq, 1);
 	return 0;
 
 err_remove_sysfs: