--- /dev/null
+* AsahiKASEI AK8975 magnetometer sensor
+
+Required properties:
+
+ - compatible : should be "asahi-kasei,ak8975"
+ - reg : the I2C address of the magnetometer
+
+Optional properties:
+
+ - gpios : should be device tree identifier of the magnetometer DRDY pin
+
+Example:
+
+ak8975@0c {
+ compatible = "asahi-kasei,ak8975";
+ reg = <0x0c>;
+ gpios = <&gpj0 7 0>;
+};
#include <linux/delay.h>
#include <linux/gpio.h>
+#include <linux/of_gpio.h>
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
int err;
/* Grab and set up the supplied GPIO. */
- if (client->dev.platform_data == NULL)
- eoc_gpio = -1;
- else
+ if (client->dev.platform_data)
eoc_gpio = *(int *)(client->dev.platform_data);
+ else if (client->dev.of_node)
+ eoc_gpio = of_get_gpio(client->dev.of_node, 0);
+ else
+ eoc_gpio = -1;
+
+ if (eoc_gpio == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
/* We may not have a GPIO based IRQ to scan, that is fine, we will
poll if so */