Input: twl4030-pwrbutton - add device tree support

Texas Instruments TWL family (twl4030) pwrbutton module

This module is part of the TWL4030. For more details about the whole

chip see Documentation/devicetree/bindings/mfd/twl-familly.txt.

This module provides a simple power button event via an Interrupt.

Required properties:

- compatible: should be one of the following

   - "ti,twl4030-pwrbutton": For controllers compatible with twl4030

- interrupts: should be one of the following

   - <8>: For controllers compatible with twl4030

Example:

&twl {

	twl_pwrbutton: pwrbutton {

		compatible = "ti,twl4030-pwrbutton";

		interrupts = <8>;

	};

};

	return IRQ_HANDLED;

}

static int __init twl4030_pwrbutton_probe(struct platform_device *pdev)

static int twl4030_pwrbutton_probe(struct platform_device *pdev)

{

	struct input_dev *pwr;

	int irq = platform_get_irq(pdev, 0);

	return 0;

}

#ifdef CONFIG_OF

static const struct of_device_id twl4030_pwrbutton_dt_match_table[] = {

       { .compatible = "ti,twl4030-pwrbutton" },

       {},

};

MODULE_DEVICE_TABLE(of, twl4030_pwrbutton_dt_match_table);

#endif

static struct platform_driver twl4030_pwrbutton_driver = {

	.probe		= twl4030_pwrbutton_probe,

	.remove		= __exit_p(twl4030_pwrbutton_remove),

	.driver		= {

		.name	= "twl4030_pwrbutton",

		.owner	= THIS_MODULE,

		.of_match_table = of_match_ptr(twl4030_pwrbutton_dt_match_table),

	},

};

module_platform_driver_probe(twl4030_pwrbutton_driver,

			twl4030_pwrbutton_probe);

module_platform_driver(twl4030_pwrbutton_driver);

MODULE_ALIAS("platform:twl4030_pwrbutton");

MODULE_DESCRIPTION("Triton2 Power Button");