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authorMichael Hennerich <michael.hennerich@analog.com>2008-04-18 00:25:00 -0400
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2008-04-24 13:25:03 -0400
commitd0478d0ad7a58f36afa03e57afe14955c2943466 (patch)
treec742e28a23597abb5cff6dcee660aceffac6a79e /drivers/input/keyboard
parentd7b5247bbcfba2bc96d4b3dec9086a4f1a31363b (diff)
Input: bf54x-keys - add infrastructure for keypad wakeups
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers/input/keyboard')
-rw-r--r--drivers/input/keyboard/bf54x-keys.c35
1 files changed, 32 insertions, 3 deletions
diff --git a/drivers/input/keyboard/bf54x-keys.c b/drivers/input/keyboard/bf54x-keys.c
index d87ac3322a6..54ed8e2e1c0 100644
--- a/drivers/input/keyboard/bf54x-keys.c
+++ b/drivers/input/keyboard/bf54x-keys.c
@@ -312,6 +312,8 @@ static int __devinit bfin_kpad_probe(struct platform_device *pdev)
bfin_write_KPAD_CTL(bfin_read_KPAD_CTL() | KPAD_EN);
+ device_init_wakeup(&pdev->dev, 1);
+
printk(KERN_ERR DRV_NAME
": Blackfin BF54x Keypad registered IRQ %d\n", bf54x_kpad->irq);
@@ -354,13 +356,40 @@ static int __devexit bfin_kpad_remove(struct platform_device *pdev)
return 0;
}
+#ifdef CONFIG_PM
+static int bfin_kpad_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ struct bf54x_kpad *bf54x_kpad = platform_get_drvdata(pdev);
+
+ if (device_may_wakeup(&pdev->dev))
+ enable_irq_wake(bf54x_kpad->irq);
+
+ return 0;
+}
+
+static int bfin_kpad_resume(struct platform_device *pdev)
+{
+ struct bf54x_kpad *bf54x_kpad = platform_get_drvdata(pdev);
+
+ if (device_may_wakeup(&pdev->dev))
+ disable_irq_wake(bf54x_kpad->irq);
+
+ return 0;
+}
+#else
+# define bfin_kpad_suspend NULL
+# define bfin_kpad_resume NULL
+#endif
+
struct platform_driver bfin_kpad_device_driver = {
- .probe = bfin_kpad_probe,
- .remove = __devexit_p(bfin_kpad_remove),
.driver = {
.name = DRV_NAME,
.owner = THIS_MODULE,
- }
+ },
+ .probe = bfin_kpad_probe,
+ .remove = __devexit_p(bfin_kpad_remove),
+ .suspend = bfin_kpad_suspend,
+ .resume = bfin_kpad_resume,
};
static int __init bfin_kpad_init(void)