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>

diff --git a/drivers/staging/iio/magnetometer/ak8975.c b/drivers/staging/iio/magnetometer/ak8975.c
index 420f206cf517618495f0c0885f4634bd0aa77203..80c0f41370767fd8563f321cea626516c9d6742d 100644 (file)
--- a/drivers/staging/iio/magnetometer/ak8975.c
+++ b/drivers/staging/iio/magnetometer/ak8975.c
@@ -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");

diff --git a/include/linux/input/ak8975.h b/include/linux/input/ak8975.h
new file mode 100644 (file)
index 0000000..25d41eb
--- /dev/null
+++ b/include/linux/input/ak8975.h
@@ -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