mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-26 02:05:29 +07:00
4da38f1be6
Add driver to talk over spi to a fxas21002c gyroscope device and use the core as main controller. Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
71 lines
1.7 KiB
C
71 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Driver for NXP Fxas21002c Gyroscope - SPI
|
|
*
|
|
* Copyright (C) 2019 Linaro Ltd.
|
|
*/
|
|
|
|
#include <linux/err.h>
|
|
#include <linux/mod_devicetable.h>
|
|
#include <linux/module.h>
|
|
#include <linux/regmap.h>
|
|
#include <linux/spi/spi.h>
|
|
|
|
#include "fxas21002c.h"
|
|
|
|
static const struct regmap_config fxas21002c_regmap_spi_conf = {
|
|
.reg_bits = 8,
|
|
.val_bits = 8,
|
|
.max_register = FXAS21002C_REG_CTRL3,
|
|
};
|
|
|
|
static int fxas21002c_spi_probe(struct spi_device *spi)
|
|
{
|
|
const struct spi_device_id *id = spi_get_device_id(spi);
|
|
struct regmap *regmap;
|
|
|
|
regmap = devm_regmap_init_spi(spi, &fxas21002c_regmap_spi_conf);
|
|
if (IS_ERR(regmap)) {
|
|
dev_err(&spi->dev, "Failed to register spi regmap: %ld\n",
|
|
PTR_ERR(regmap));
|
|
return PTR_ERR(regmap);
|
|
}
|
|
|
|
return fxas21002c_core_probe(&spi->dev, regmap, spi->irq, id->name);
|
|
}
|
|
|
|
static int fxas21002c_spi_remove(struct spi_device *spi)
|
|
{
|
|
fxas21002c_core_remove(&spi->dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct spi_device_id fxas21002c_spi_id[] = {
|
|
{ "fxas21002c", 0 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(spi, fxas21002c_spi_id);
|
|
|
|
static const struct of_device_id fxas21002c_spi_of_match[] = {
|
|
{ .compatible = "nxp,fxas21002c", },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(of, fxas21002c_spi_of_match);
|
|
|
|
static struct spi_driver fxas21002c_spi_driver = {
|
|
.driver = {
|
|
.name = "fxas21002c_spi",
|
|
.pm = &fxas21002c_pm_ops,
|
|
.of_match_table = fxas21002c_spi_of_match,
|
|
},
|
|
.probe = fxas21002c_spi_probe,
|
|
.remove = fxas21002c_spi_remove,
|
|
.id_table = fxas21002c_spi_id,
|
|
};
|
|
module_spi_driver(fxas21002c_spi_driver);
|
|
|
|
MODULE_AUTHOR("Rui Miguel Silva <rui.silva@linaro.org>");
|
|
MODULE_LICENSE("GPL v2");
|
|
MODULE_DESCRIPTION("FXAS21002C SPI Gyro driver");
|