// SPDX-License-Identifier: GPL-2.0-or-later/* * TSC2004 touchscreen driver * * Copyright (C) 2015 QWERTY Embedded Design * Copyright (C) 2015 EMAC Inc. */ #include <linux/module.h>#include <linux/input.h>#include <linux/of.h>#include <linux/i2c.h>#include <linux/regmap.h>#include "tsc200x-core.h" static const struct input_id tsc2004_input_id = {	.bustype = BUS_I2C,	.product = 2004,}; static int tsc2004_cmd(struct device *dev, u8 cmd){	u8 tx = TSC200X_CMD | TSC200X_CMD_12BIT | cmd;	s32 data;	struct i2c_client *i2c = to_i2c_client(dev); 	data = i2c_smbus_write_byte(i2c, tx);	if (data < 0) {		dev_err(dev, "%s: failed, command: %x i2c error: %d\n",			__func__, cmd, data);		return data;	} 	return 0;} static int tsc2004_probe(struct i2c_client *i2c) {	return tsc200x_probe(&i2c->dev, i2c->irq, &tsc2004_input_id,			     devm_regmap_init_i2c(i2c, &tsc200x_regmap_config),			     tsc2004_cmd);} static const struct i2c_device_id tsc2004_idtable[] = {	{ .name = "tsc2004" },	{ }};MODULE_DEVICE_TABLE(i2c, tsc2004_idtable); #ifdef CONFIG_OFstatic const struct of_device_id tsc2004_of_match[] = {	{ .compatible = "ti,tsc2004" },	{ /* sentinel */ }};MODULE_DEVICE_TABLE(of, tsc2004_of_match);#endif static struct i2c_driver tsc2004_driver = {	.driver = {		.name		= "tsc2004",		.dev_groups	= tsc200x_groups,		.of_match_table	= of_match_ptr(tsc2004_of_match),		.pm		= pm_sleep_ptr(&tsc200x_pm_ops),	},	.id_table       = tsc2004_idtable,	.probe          = tsc2004_probe,};module_i2c_driver(tsc2004_driver); MODULE_AUTHOR("Michael Welling <mwelling@ieee.org>");MODULE_DESCRIPTION("TSC2004 Touchscreen Driver");MODULE_LICENSE("GPL");