mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-15 23:25:07 +00:00
c942fddf87
Based on 3 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 as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version [author] [graeme] [gregory] [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema] [hk] [hemahk]@[ti] [com] this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1105 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
79 lines
1.8 KiB
C
79 lines
1.8 KiB
C
// 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,
|
|
const struct i2c_device_id *id)
|
|
|
|
{
|
|
return tsc200x_probe(&i2c->dev, i2c->irq, &tsc2004_input_id,
|
|
devm_regmap_init_i2c(i2c, &tsc200x_regmap_config),
|
|
tsc2004_cmd);
|
|
}
|
|
|
|
static int tsc2004_remove(struct i2c_client *i2c)
|
|
{
|
|
return tsc200x_remove(&i2c->dev);
|
|
}
|
|
|
|
static const struct i2c_device_id tsc2004_idtable[] = {
|
|
{ "tsc2004", 0 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, tsc2004_idtable);
|
|
|
|
#ifdef CONFIG_OF
|
|
static 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",
|
|
.of_match_table = of_match_ptr(tsc2004_of_match),
|
|
.pm = &tsc200x_pm_ops,
|
|
},
|
|
.id_table = tsc2004_idtable,
|
|
.probe = tsc2004_probe,
|
|
.remove = tsc2004_remove,
|
|
};
|
|
module_i2c_driver(tsc2004_driver);
|
|
|
|
MODULE_AUTHOR("Michael Welling <mwelling@ieee.org>");
|
|
MODULE_DESCRIPTION("TSC2004 Touchscreen Driver");
|
|
MODULE_LICENSE("GPL");
|