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Date: Mon, 14 Jun 2010 12:51:23 +0100
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: Luotao Fu <l.fu@pengutronix.de>
Cc: Samuel Ortiz <sameo@linux.intel.com>,
       Dmitry Torokhov <dmitry.torokhov@gmail.com>,
       Andrew Morton <akpm@linux-foundation.org>, linux-input@vger.kernel.org,
       linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/3 V2] gpio: add STMPE811 gpio controller support
Message-ID: <20100614115123.GB14604@rakim.wolfsonmicro.main>
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On Mon, Jun 14, 2010 at 12:32:37PM +0200, Luotao Fu wrote:

> +static struct gpio_chip gpio_chip = {
> +	.label = STMPE811_GPIO_NAME,
> +	.owner = THIS_MODULE,
> +	.direction_input = stmpe811_gpio_direction_in,
> +	.get = stmpe811_gpio_get,
> +	.direction_output = stmpe811_gpio_direction_out,
> +	.set = stmpe811_gpio_set,
> +	.request = stmpe811_gpio_request,
> +	.can_sleep = 1,
> +};

Assuming you're able to do interrupts on the GPIOs you should now be
able to implement to_irq() as well.