From: Eric Miao <eric.y.miao@gmail.com>
Date: Mon, 2 Jun 2008 15:20:55 +0000 (-0400)
Subject: Input: pxa27x_keypad - add wakeup support
X-Git-Tag: v2.6.27-rc1~958^2~29
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=39ab9ddeb3e9573a1ea9a17a1431ea5c81681964;p=linux-2.6

Input: pxa27x_keypad - add wakeup support

Signed-off-by: Eric Miao <eric.miao@marvell.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---

diff --git a/drivers/input/keyboard/pxa27x_keypad.c b/drivers/input/keyboard/pxa27x_keypad.c
index 3dea0c5077..c7c9599b31 100644
--- a/drivers/input/keyboard/pxa27x_keypad.c
+++ b/drivers/input/keyboard/pxa27x_keypad.c
@@ -105,6 +105,8 @@ struct pxa27x_keypad {
 	struct input_dev *input_dev;
 	void __iomem *mmio_base;
 
+	int irq;
+
 	/* matrix key code map */
 	unsigned int matrix_keycodes[MAX_MATRIX_KEY_NUM];
 
@@ -385,6 +387,10 @@ static int pxa27x_keypad_suspend(struct platform_device *pdev, pm_message_t stat
 	struct pxa27x_keypad *keypad = platform_get_drvdata(pdev);
 
 	clk_disable(keypad->clk);
+
+	if (device_may_wakeup(&pdev->dev))
+		enable_irq_wake(keypad->irq);
+
 	return 0;
 }
 
@@ -393,6 +399,9 @@ static int pxa27x_keypad_resume(struct platform_device *pdev)
 	struct pxa27x_keypad *keypad = platform_get_drvdata(pdev);
 	struct input_dev *input_dev = keypad->input_dev;
 
+	if (device_may_wakeup(&pdev->dev))
+		disable_irq_wake(keypad->irq);
+
 	mutex_lock(&input_dev->mutex);
 
 	if (input_dev->users) {
@@ -497,6 +506,8 @@ static int __devinit pxa27x_keypad_probe(struct platform_device *pdev)
 		goto failed_free_dev;
 	}
 
+	keypad->irq = irq;
+
 	/* Register the input device */
 	error = input_register_device(input_dev);
 	if (error) {
@@ -504,6 +515,8 @@ static int __devinit pxa27x_keypad_probe(struct platform_device *pdev)
 		goto failed_free_irq;
 	}
 
+	device_init_wakeup(&pdev->dev, 1);
+
 	return 0;
 
 failed_free_irq:
@@ -527,7 +540,7 @@ static int __devexit pxa27x_keypad_remove(struct platform_device *pdev)
 	struct pxa27x_keypad *keypad = platform_get_drvdata(pdev);
 	struct resource *res;
 
-	free_irq(platform_get_irq(pdev, 0), pdev);
+	free_irq(keypad->irq, pdev);
 
 	clk_disable(keypad->clk);
 	clk_put(keypad->clk);