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Commit 78608a0d authored by Illia Smyrnov's avatar Illia Smyrnov Committed by Dmitry Torokhov
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Input: omap-keypad - enable wakeup capability for keypad. 



Enable/disable IRQ wake in suspend/resume handlers
to make the keypad wakeup capable.

Signed-off-by: default avatarIllia Smyrnov <illia.smyrnov@ti.com>
Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent afbac60b

drivers/input/keyboard/omap4-keypad.c

+39 −0
Original line number Diff line number Diff line
@@ -74,6 +74,7 @@ struct omap4_keypad { 
	struct input_dev *input;



	void __iomem *base;

	bool irq_wake_enabled;

	unsigned int irq;



	unsigned int rows;
@@ -380,6 +381,7 @@ static int omap4_keypad_probe(struct platform_device *pdev) 
		goto err_free_input;

	}



	device_init_wakeup(&pdev->dev, true);

	pm_runtime_put_sync(&pdev->dev);



	error = input_register_device(keypad_data->input);
@@ -393,6 +395,7 @@ static int omap4_keypad_probe(struct platform_device *pdev) 


err_pm_disable:

	pm_runtime_disable(&pdev->dev);

	device_init_wakeup(&pdev->dev, false);

	free_irq(keypad_data->irq, keypad_data);

err_free_keymap:

	kfree(keypad_data->keymap);
@@ -418,6 +421,8 @@ static int omap4_keypad_remove(struct platform_device *pdev) 


	pm_runtime_disable(&pdev->dev);



	device_init_wakeup(&pdev->dev, false);



	input_unregister_device(keypad_data->input);



	iounmap(keypad_data->base);
@@ -439,12 +444,46 @@ static const struct of_device_id omap_keypad_dt_match[] = { 
MODULE_DEVICE_TABLE(of, omap_keypad_dt_match);

#endif



#ifdef CONFIG_PM_SLEEP

static int omap4_keypad_suspend(struct device *dev)

{

	struct platform_device *pdev = to_platform_device(dev);

	struct omap4_keypad *keypad_data = platform_get_drvdata(pdev);

	int error;



	if (device_may_wakeup(&pdev->dev)) {

		error = enable_irq_wake(keypad_data->irq);

		if (!error)

			keypad_data->irq_wake_enabled = true;

	}



	return 0;

}



static int omap4_keypad_resume(struct device *dev)

{

	struct platform_device *pdev = to_platform_device(dev);

	struct omap4_keypad *keypad_data = platform_get_drvdata(pdev);



	if (device_may_wakeup(&pdev->dev) && keypad_data->irq_wake_enabled) {

		disable_irq_wake(keypad_data->irq);

		keypad_data->irq_wake_enabled = false;

	}



	return 0;

}

#endif



static SIMPLE_DEV_PM_OPS(omap4_keypad_pm_ops,

			 omap4_keypad_suspend, omap4_keypad_resume);



static struct platform_driver omap4_keypad_driver = {

	.probe		= omap4_keypad_probe,

	.remove		= omap4_keypad_remove,

	.driver		= {

		.name	= "omap4-keypad",

		.owner	= THIS_MODULE,

		.pm	= &omap4_keypad_pm_ops,

		.of_match_table = of_match_ptr(omap_keypad_dt_match),

	},

};