Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / misc / bmp085-spi.c

diff --git a/kernel/drivers/misc/bmp085-spi.c b/kernel/drivers/misc/bmp085-spi.c
new file mode 100644 (file)
index 0000000..864ecac
--- /dev/null
+++ b/kernel/drivers/misc/bmp085-spi.c
@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2012  Bosch Sensortec GmbH
+ * Copyright (c) 2012  Unixphere AB
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/spi/spi.h>
+#include <linux/err.h>
+#include "bmp085.h"
+
+static int bmp085_spi_probe(struct spi_device *client)
+{
+       int err;
+       struct regmap *regmap;
+
+       client->bits_per_word = 8;
+       err = spi_setup(client);
+       if (err < 0) {
+               dev_err(&client->dev, "spi_setup failed!\n");
+               return err;
+       }
+
+       regmap = devm_regmap_init_spi(client, &bmp085_regmap_config);
+       if (IS_ERR(regmap)) {
+               err = PTR_ERR(regmap);
+               dev_err(&client->dev, "Failed to init regmap: %d\n", err);
+               return err;
+       }
+
+       return bmp085_probe(&client->dev, regmap, client->irq);
+}
+
+static int bmp085_spi_remove(struct spi_device *client)
+{
+       return bmp085_remove(&client->dev);
+}
+
+static const struct of_device_id bmp085_of_match[] = {
+       { .compatible = "bosch,bmp085", },
+       { },
+};
+MODULE_DEVICE_TABLE(of, bmp085_of_match);
+
+static const struct spi_device_id bmp085_id[] = {
+       { "bmp180", 0 },
+       { "bmp181", 0 },
+       { }
+};
+MODULE_DEVICE_TABLE(spi, bmp085_id);
+
+static struct spi_driver bmp085_spi_driver = {
+       .driver = {
+               .owner  = THIS_MODULE,
+               .name   = BMP085_NAME,
+               .of_match_table = bmp085_of_match
+       },
+       .id_table       = bmp085_id,
+       .probe          = bmp085_spi_probe,
+       .remove         = bmp085_spi_remove
+};
+
+module_spi_driver(bmp085_spi_driver);
+
+MODULE_AUTHOR("Eric Andersson <eric.andersson@unixphere.com>");
+MODULE_DESCRIPTION("BMP085 SPI bus driver");
+MODULE_LICENSE("GPL");