1// SPDX-License-Identifier: GPL-2.0+
 2/* SC16IS7xx I2C interface driver */
 3
 4#include <linux/dev_printk.h>
 5#include <linux/i2c.h>
 6#include <linux/mod_devicetable.h>
 7#include <linux/module.h>
 8#include <linux/regmap.h>
 9#include <linux/string.h>
10
11#include "sc16is7xx.h"
12
13static int sc16is7xx_i2c_probe(struct i2c_client *i2c)
14{
15	const struct sc16is7xx_devtype *devtype;
16	struct regmap *regmaps[SC16IS7XX_MAX_PORTS];
17	struct regmap_config regcfg;
18	unsigned int i;
19
20	devtype = i2c_get_match_data(i2c);
21	if (!devtype)
22		return dev_err_probe(&i2c->dev, -ENODEV, "Failed to match device\n");
23
24	memcpy(&regcfg, &sc16is7xx_regcfg, sizeof(struct regmap_config));
25
26	for (i = 0; i < devtype->nr_uart; i++) {
27		regcfg.name = sc16is7xx_regmap_name(i);
28		regcfg.read_flag_mask = sc16is7xx_regmap_port_mask(i);
29		regcfg.write_flag_mask = sc16is7xx_regmap_port_mask(i);
30		regmaps[i] = devm_regmap_init_i2c(i2c, &regcfg);
31	}
32
33	return sc16is7xx_probe(&i2c->dev, devtype, regmaps, i2c->irq);
34}
35
36static void sc16is7xx_i2c_remove(struct i2c_client *client)
37{
38	sc16is7xx_remove(&client->dev);
39}
40
41static const struct i2c_device_id sc16is7xx_i2c_id_table[] = {
42	{ "sc16is74x",	(kernel_ulong_t)&sc16is74x_devtype, },
43	{ "sc16is740",	(kernel_ulong_t)&sc16is74x_devtype, },
44	{ "sc16is741",	(kernel_ulong_t)&sc16is74x_devtype, },
45	{ "sc16is750",	(kernel_ulong_t)&sc16is750_devtype, },
46	{ "sc16is752",	(kernel_ulong_t)&sc16is752_devtype, },
47	{ "sc16is760",	(kernel_ulong_t)&sc16is760_devtype, },
48	{ "sc16is762",	(kernel_ulong_t)&sc16is762_devtype, },
49	{ }
50};
51MODULE_DEVICE_TABLE(i2c, sc16is7xx_i2c_id_table);
52
53static struct i2c_driver sc16is7xx_i2c_driver = {
54	.driver = {
55		.name		= SC16IS7XX_NAME,
56		.of_match_table	= sc16is7xx_dt_ids,
57	},
58	.probe		= sc16is7xx_i2c_probe,
59	.remove		= sc16is7xx_i2c_remove,
60	.id_table	= sc16is7xx_i2c_id_table,
61};
62
63module_i2c_driver(sc16is7xx_i2c_driver);
64
65MODULE_LICENSE("GPL");
66MODULE_DESCRIPTION("SC16IS7xx I2C interface driver");
67MODULE_IMPORT_NS("SERIAL_NXP_SC16IS7XX");