linux/drivers/iio/light/st_uvis25_spi.c
Colin Ian King debbbbef06 iio: light: make a couple of config structures static
Structures st_uvis25_i2c_regmap_config and st_uvis25_spi_regmap_config are
local to the source and do not need to be in global scope, so make them
both static.

Cleans up sparse warnings:
warning: symbol 'st_uvis25_i2c_regmap_config' was not declared. Should
it be static?
warning: symbol 'st_uvis25_spi_regmap_config' was not declared. Should
it be static?

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-08 16:03:41 +01:00

69 lines
1.7 KiB
C

/*
* STMicroelectronics uvis25 spi driver
*
* Copyright 2017 STMicroelectronics Inc.
*
* Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
*
* Licensed under the GPL-2.
*/
#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");