From 217494e5b780ad85485c1bb6382ce50b5fa2dc26 Mon Sep 17 00:00:00 2001
From: Denis CIOCCA <denis.ciocca@st.com>
Date: Mon, 3 Jun 2013 15:58:00 +0100
Subject: iio:pressure: Add STMicroelectronics pressures driver

This patch adds a generic pressure driver for STMicroelectronics
pressure sensors, currently it supports: LPS331AP.

Signed-off-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/pressure/st_pressure_spi.c | 76 ++++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 drivers/iio/pressure/st_pressure_spi.c

(limited to 'drivers/iio/pressure/st_pressure_spi.c')

diff --git a/drivers/iio/pressure/st_pressure_spi.c b/drivers/iio/pressure/st_pressure_spi.c
new file mode 100644
index 0000000..17a1490
--- /dev/null
+++ b/drivers/iio/pressure/st_pressure_spi.c
@@ -0,0 +1,76 @@
+/*
+ * STMicroelectronics pressures driver
+ *
+ * Copyright 2013 STMicroelectronics Inc.
+ *
+ * Denis Ciocca <denis.ciocca@st.com>
+ *
+ * Licensed under the GPL-2.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/spi/spi.h>
+#include <linux/iio/iio.h>
+
+#include <linux/iio/common/st_sensors.h>
+#include <linux/iio/common/st_sensors_spi.h>
+#include "st_pressure.h"
+
+static int st_press_spi_probe(struct spi_device *spi)
+{
+	struct iio_dev *indio_dev;
+	struct st_sensor_data *pdata;
+	int err;
+
+	indio_dev = iio_device_alloc(sizeof(*pdata));
+	if (indio_dev == NULL) {
+		err = -ENOMEM;
+		goto iio_device_alloc_error;
+	}
+
+	pdata = iio_priv(indio_dev);
+	pdata->dev = &spi->dev;
+
+	st_sensors_spi_configure(indio_dev, spi, pdata);
+
+	err = st_press_common_probe(indio_dev);
+	if (err < 0)
+		goto st_press_common_probe_error;
+
+	return 0;
+
+st_press_common_probe_error:
+	iio_device_free(indio_dev);
+iio_device_alloc_error:
+	return err;
+}
+
+static int st_press_spi_remove(struct spi_device *spi)
+{
+	st_press_common_remove(spi_get_drvdata(spi));
+
+	return 0;
+}
+
+static const struct spi_device_id st_press_id_table[] = {
+	{ LPS331AP_PRESS_DEV_NAME },
+	{},
+};
+MODULE_DEVICE_TABLE(spi, st_press_id_table);
+
+static struct spi_driver st_press_driver = {
+	.driver = {
+		.owner = THIS_MODULE,
+		.name = "st-press-spi",
+	},
+	.probe = st_press_spi_probe,
+	.remove = st_press_spi_remove,
+	.id_table = st_press_id_table,
+};
+module_spi_driver(st_press_driver);
+
+MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
+MODULE_DESCRIPTION("STMicroelectronics pressures spi driver");
+MODULE_LICENSE("GPL v2");
-- 
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