From c81e592696bbe1224506087eae8b4e02cd7186c3 Mon Sep 17 00:00:00 2001 From: Sebastian Reichel Date: Tue, 19 Nov 2013 13:55:12 -0800 Subject: [PATCH] Input: twl4030-pwrbutton - add device tree support Add device tree support for twl4030 power button driver. Adding device tree support involved converting the driver to module_platform_driver(). Signed-off-by: Sebastian Reichel Acked-by: Kumar Gala Tested-by: Florian Vaussard Signed-off-by: Dmitry Torokhov --- .../bindings/input/twl4030-pwrbutton.txt | 21 +++++++++++++++++++ drivers/input/misc/twl4030-pwrbutton.c | 16 ++++++++++---- 2 files changed, 33 insertions(+), 4 deletions(-) create mode 100644 Documentation/devicetree/bindings/input/twl4030-pwrbutton.txt diff --git a/Documentation/devicetree/bindings/input/twl4030-pwrbutton.txt b/Documentation/devicetree/bindings/input/twl4030-pwrbutton.txt new file mode 100644 index 000000000000..c864a46cddcf --- /dev/null +++ b/Documentation/devicetree/bindings/input/twl4030-pwrbutton.txt @@ -0,0 +1,21 @@ +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>; + }; +}; diff --git a/drivers/input/misc/twl4030-pwrbutton.c b/drivers/input/misc/twl4030-pwrbutton.c index b9a05fda03e4..412ef0ecb439 100644 --- a/drivers/input/misc/twl4030-pwrbutton.c +++ b/drivers/input/misc/twl4030-pwrbutton.c @@ -52,7 +52,7 @@ static irqreturn_t powerbutton_irq(int irq, void *_pwr) 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); @@ -106,16 +106,24 @@ static int __exit twl4030_pwrbutton_remove(struct platform_device *pdev) 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");