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path: root/drivers/input/misc/dm355evm_keys.c
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Diffstat (limited to 'drivers/input/misc/dm355evm_keys.c')
-rw-r--r--drivers/input/misc/dm355evm_keys.c26
1 files changed, 9 insertions, 17 deletions
diff --git a/drivers/input/misc/dm355evm_keys.c b/drivers/input/misc/dm355evm_keys.c
index 0918acae584a..f2b67dc81d80 100644
--- a/drivers/input/misc/dm355evm_keys.c
+++ b/drivers/input/misc/dm355evm_keys.c
@@ -96,7 +96,13 @@ static struct {
{ 0x3169, KEY_PAUSE, },
};
-/* runs in an IRQ thread -- can (and will!) sleep */
+/*
+ * Because we communicate with the MSP430 using I2C, and all I2C calls
+ * in Linux sleep, we use a threaded IRQ handler. The IRQ itself is
+ * active low, but we go through the GPIO controller so we can trigger
+ * on falling edges and not worry about enabling/disabling the IRQ in
+ * the keypress handling path.
+ */
static irqreturn_t dm355evm_keys_irq(int irq, void *_keys)
{
struct dm355evm_keys *keys = _keys;
@@ -171,18 +177,6 @@ static irqreturn_t dm355evm_keys_irq(int irq, void *_keys)
return IRQ_HANDLED;
}
-/*
- * Because we communicate with the MSP430 using I2C, and all I2C calls
- * in Linux sleep, we use a threaded IRQ handler. The IRQ itself is
- * active low, but we go through the GPIO controller so we can trigger
- * on falling edges and not worry about enabling/disabling the IRQ in
- * the keypress handling path.
- */
-static irqreturn_t dm355evm_keys_hardirq(int irq, void *_keys)
-{
- return IRQ_WAKE_THREAD;
-}
-
static int dm355evm_setkeycode(struct input_dev *dev, int index, int keycode)
{
u16 old_keycode;
@@ -257,10 +251,8 @@ static int __devinit dm355evm_keys_probe(struct platform_device *pdev)
/* REVISIT: flush the event queue? */
- status = request_threaded_irq(keys->irq,
- dm355evm_keys_hardirq, dm355evm_keys_irq,
- IRQF_TRIGGER_FALLING,
- dev_name(&pdev->dev), keys);
+ status = request_threaded_irq(keys->irq, NULL, dm355evm_keys_irq,
+ IRQF_TRIGGER_FALLING, dev_name(&pdev->dev), keys);
if (status < 0)
goto fail1;