linux/drivers/iio/light/st_uvis25_spi.c
Thomas Gleixner fda8d26e61 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 177
Based on 1 normalized pattern(s):

  licensed under the gpl 2

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 135 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190528170026.071193225@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:29:19 -07:00

68 lines
1.7 KiB
C

// SPDX-License-Identifier: GPL-2.0-only
/*
* STMicroelectronics uvis25 spi driver
*
* Copyright 2017 STMicroelectronics Inc.
*
* Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/spi/spi.h>
#include <linux/slab.h>
#include <linux/regmap.h>
#include "st_uvis25.h"
#define UVIS25_SENSORS_SPI_READ BIT(7)
#define UVIS25_SPI_AUTO_INCREMENT BIT(6)
static const struct regmap_config st_uvis25_spi_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.read_flag_mask = UVIS25_SENSORS_SPI_READ | UVIS25_SPI_AUTO_INCREMENT,
.write_flag_mask = UVIS25_SPI_AUTO_INCREMENT,
};
static int st_uvis25_spi_probe(struct spi_device *spi)
{
struct regmap *regmap;
regmap = devm_regmap_init_spi(spi, &st_uvis25_spi_regmap_config);
if (IS_ERR(regmap)) {
dev_err(&spi->dev, "Failed to register spi regmap %d\n",
(int)PTR_ERR(regmap));
return PTR_ERR(regmap);
}
return st_uvis25_probe(&spi->dev, spi->irq, regmap);
}
static const struct of_device_id st_uvis25_spi_of_match[] = {
{ .compatible = "st,uvis25", },
{},
};
MODULE_DEVICE_TABLE(of, st_uvis25_spi_of_match);
static const struct spi_device_id st_uvis25_spi_id_table[] = {
{ ST_UVIS25_DEV_NAME },
{},
};
MODULE_DEVICE_TABLE(spi, st_uvis25_spi_id_table);
static struct spi_driver st_uvis25_driver = {
.driver = {
.name = "st_uvis25_spi",
.pm = &st_uvis25_pm_ops,
.of_match_table = of_match_ptr(st_uvis25_spi_of_match),
},
.probe = st_uvis25_spi_probe,
.id_table = st_uvis25_spi_id_table,
};
module_spi_driver(st_uvis25_driver);
MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>");
MODULE_DESCRIPTION("STMicroelectronics uvis25 spi driver");
MODULE_LICENSE("GPL v2");