linux-kernel - Re: [PATCH 1/4] Input: twl4030-pwrbutton

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Date:	Tue, 22 Oct 2013 08:50:40 -0500
From:	Felipe Balbi <balbi@...com>
To:	Sebastian Reichel <sre@...ian.org>
CC:	Sebastian Reichel <sre@...g0.de>, <linux-input@...r.kernel.org>,
	"'Benoît Cousson'" <bcousson@...libre.com>,
	Tony Lindgren <tony@...mide.com>,
	Rob Herring <rob.herring@...xeda.com>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Stephen Warren <swarren@...dotorg.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Rob Landley <rob@...dley.net>,
	Russell King <linux@....linux.org.uk>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Grant Likely <grant.likely@...aro.org>,
	<devicetree@...r.kernel.org>, <linux-doc@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-omap@...r.kernel.org>
Subject: Re: [PATCH 1/4] Input: twl4030-pwrbutton - add device tree support

Hi,

On Tue, Oct 22, 2013 at 02:55:01PM +0200, Sebastian Reichel wrote:
> Add device tree support for twl4030 power button driver.
> 
> Signed-off-by: Sebastian Reichel <sre@...ian.org>
> ---
>  drivers/input/misc/twl4030-pwrbutton.c | 19 +++++++++++++++----
>  1 file changed, 15 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/input/misc/twl4030-pwrbutton.c b/drivers/input/misc/twl4030-pwrbutton.c
> index b9a05fd..e450947 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 +106,27 @@ static int __exit twl4030_pwrbutton_remove(struct platform_device *pdev)
>  	return 0;
>  }
>  
> +#if IS_ENABLED(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);
> +#define twl4030_pwrbutton_dt_match of_match_ptr(twl4030_pwrbutton_dt_match_table)
> +#else
> +#define twl4030_pwrbutton_dt_match NULL
> +#endif

you don't ned this trickery.. just always device the match table.

-- 
balbi

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