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staging: iio: ak8975: add platform data. 

As some of the platform not support irq_to_gpio, we pass gpio port
by platform data.

Signed-off-by: Tony SIM <chinyeow.sim.xt@renesas.com>
Signed-off-by: Andrew Chew <achew@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Tony SIM 2011-02-15 19:10:27 +09:00 committed by Greg Kroah-Hartman
parent ea801950cf
commit f2f1794835
2 changed files with 27 additions and 1 deletions
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8
drivers/staging/iio/magnetometer/ak8975.c
View File

@ -29,6 +29,7 @@
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/input/ak8975.h>
#include "../iio.h"
#include "magnet.h"
@ -435,6 +436,7 @@ static int ak8975_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct ak8975_data *data;
struct ak8975_platform_data *pdata;
int err;
/* Allocate our device context. */
@ -452,7 +454,11 @@ static int ak8975_probe(struct i2c_client *client,
/* Grab and set up the supplied GPIO. */
data->eoc_irq = client->irq;
data->eoc_gpio = irq_to_gpio(client->irq);
pdata = client->dev.platform_data;
if (pdata)
data->eoc_gpio = pdata->gpio;
else
data->eoc_gpio = irq_to_gpio(client->irq);
if (!data->eoc_gpio) {
dev_err(&client->dev, "failed, no valid GPIO\n");

20
include/linux/input/ak8975.h Normal file
View File

@ -0,0 +1,20 @@
/*
* ak8975 platform support
*
* Copyright (C) 2010 Renesas Solutions Corp.
*
* Author: Tony SIM <chinyeow.sim.xt@renesas.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef _AK8975_H
#define _AK8975_H
struct ak8975_platform_data {
int gpio;
};
#endif