linux-stable/drivers/mfd/mc13xxx-i2c.c
Thomas Gleixner d2912cb15b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
Based on 2 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:09:55 +02:00

117 lines
2.6 KiB
C

// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright 2009-2010 Creative Product Design
* Marc Reilly marc@cpdesign.com.au
*/
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/mfd/core.h>
#include <linux/mfd/mc13xxx.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_gpio.h>
#include <linux/i2c.h>
#include <linux/err.h>
#include "mc13xxx.h"
static const struct i2c_device_id mc13xxx_i2c_device_id[] = {
{
.name = "mc13892",
.driver_data = (kernel_ulong_t)&mc13xxx_variant_mc13892,
}, {
.name = "mc34708",
.driver_data = (kernel_ulong_t)&mc13xxx_variant_mc34708,
}, {
/* sentinel */
}
};
MODULE_DEVICE_TABLE(i2c, mc13xxx_i2c_device_id);
static const struct of_device_id mc13xxx_dt_ids[] = {
{
.compatible = "fsl,mc13892",
.data = &mc13xxx_variant_mc13892,
}, {
.compatible = "fsl,mc34708",
.data = &mc13xxx_variant_mc34708,
}, {
/* sentinel */
}
};
MODULE_DEVICE_TABLE(of, mc13xxx_dt_ids);
static const struct regmap_config mc13xxx_regmap_i2c_config = {
.reg_bits = 8,
.val_bits = 24,
.max_register = MC13XXX_NUMREGS,
.cache_type = REGCACHE_NONE,
};
static int mc13xxx_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct mc13xxx *mc13xxx;
int ret;
mc13xxx = devm_kzalloc(&client->dev, sizeof(*mc13xxx), GFP_KERNEL);
if (!mc13xxx)
return -ENOMEM;
dev_set_drvdata(&client->dev, mc13xxx);
mc13xxx->irq = client->irq;
mc13xxx->regmap = devm_regmap_init_i2c(client,
&mc13xxx_regmap_i2c_config);
if (IS_ERR(mc13xxx->regmap)) {
ret = PTR_ERR(mc13xxx->regmap);
dev_err(&client->dev, "Failed to initialize regmap: %d\n", ret);
return ret;
}
if (client->dev.of_node) {
const struct of_device_id *of_id =
of_match_device(mc13xxx_dt_ids, &client->dev);
mc13xxx->variant = of_id->data;
} else {
mc13xxx->variant = (void *)id->driver_data;
}
return mc13xxx_common_init(&client->dev);
}
static int mc13xxx_i2c_remove(struct i2c_client *client)
{
return mc13xxx_common_exit(&client->dev);
}
static struct i2c_driver mc13xxx_i2c_driver = {
.id_table = mc13xxx_i2c_device_id,
.driver = {
.name = "mc13xxx",
.of_match_table = mc13xxx_dt_ids,
},
.probe = mc13xxx_i2c_probe,
.remove = mc13xxx_i2c_remove,
};
static int __init mc13xxx_i2c_init(void)
{
return i2c_add_driver(&mc13xxx_i2c_driver);
}
subsys_initcall(mc13xxx_i2c_init);
static void __exit mc13xxx_i2c_exit(void)
{
i2c_del_driver(&mc13xxx_i2c_driver);
}
module_exit(mc13xxx_i2c_exit);
MODULE_DESCRIPTION("i2c driver for Freescale MC13XXX PMIC");
MODULE_AUTHOR("Marc Reilly <marc@cpdesign.com.au");
MODULE_LICENSE("GPL v2");