diff options
Diffstat (limited to 'drivers/input/touchscreen/max11801_ts.c')
| -rw-r--r-- | drivers/input/touchscreen/max11801_ts.c | 60 |
1 files changed, 19 insertions, 41 deletions
diff --git a/drivers/input/touchscreen/max11801_ts.c b/drivers/input/touchscreen/max11801_ts.c index 00bc6caa27f5..f39633fc8dc2 100644 --- a/drivers/input/touchscreen/max11801_ts.c +++ b/drivers/input/touchscreen/max11801_ts.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Driver for MAXI MAX11801 - A Resistive touch screen controller with * i2c interface @@ -6,11 +7,6 @@ * Author: Zhang Jiejing <jiejing.zhang@freescale.com> * * Based on mcs5000_ts.c - * - * 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. */ /* @@ -33,7 +29,6 @@ */ #include <linux/module.h> -#include <linux/init.h> #include <linux/i2c.h> #include <linux/interrupt.h> #include <linux/input.h> @@ -135,7 +130,6 @@ static irqreturn_t max11801_ts_interrupt(int irq, void *dev_id) switch (buf[1] & EVENT_TAG_MASK) { case EVENT_INIT: - /* fall through */ case EVENT_MIDDLE: input_report_abs(data->input_dev, ABS_X, x); input_report_abs(data->input_dev, ABS_Y, y); @@ -174,19 +168,17 @@ static void max11801_ts_phy_init(struct max11801_data *data) max11801_write_reg(client, OP_MODE_CONF_REG, 0x36); } -static int max11801_ts_probe(struct i2c_client *client, - const struct i2c_device_id *id) +static int max11801_ts_probe(struct i2c_client *client) { struct max11801_data *data; struct input_dev *input_dev; int error; - data = kzalloc(sizeof(struct max11801_data), GFP_KERNEL); - input_dev = input_allocate_device(); + data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL); + input_dev = devm_input_allocate_device(&client->dev); if (!data || !input_dev) { dev_err(&client->dev, "Failed to allocate memory\n"); - error = -ENOMEM; - goto err_free_mem; + return -ENOMEM; } data->client = client; @@ -201,58 +193,44 @@ static int max11801_ts_probe(struct i2c_client *client, __set_bit(BTN_TOUCH, input_dev->keybit); input_set_abs_params(input_dev, ABS_X, 0, MAX11801_MAX_X, 0, 0); input_set_abs_params(input_dev, ABS_Y, 0, MAX11801_MAX_Y, 0, 0); - input_set_drvdata(input_dev, data); max11801_ts_phy_init(data); - error = request_threaded_irq(client->irq, NULL, max11801_ts_interrupt, - IRQF_TRIGGER_LOW | IRQF_ONESHOT, - "max11801_ts", data); + error = devm_request_threaded_irq(&client->dev, client->irq, NULL, + max11801_ts_interrupt, + IRQF_TRIGGER_LOW | IRQF_ONESHOT, + "max11801_ts", data); if (error) { dev_err(&client->dev, "Failed to register interrupt\n"); - goto err_free_mem; + return error; } error = input_register_device(data->input_dev); if (error) - goto err_free_irq; - - i2c_set_clientdata(client, data); - return 0; - -err_free_irq: - free_irq(client->irq, data); -err_free_mem: - input_free_device(input_dev); - kfree(data); - return error; -} - -static int max11801_ts_remove(struct i2c_client *client) -{ - struct max11801_data *data = i2c_get_clientdata(client); - - free_irq(client->irq, data); - input_unregister_device(data->input_dev); - kfree(data); + return error; return 0; } static const struct i2c_device_id max11801_ts_id[] = { - {"max11801", 0}, + { "max11801" }, { } }; MODULE_DEVICE_TABLE(i2c, max11801_ts_id); +static const struct of_device_id max11801_ts_dt_ids[] = { + { .compatible = "maxim,max11801" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, max11801_ts_dt_ids); + static struct i2c_driver max11801_ts_driver = { .driver = { .name = "max11801_ts", - .owner = THIS_MODULE, + .of_match_table = max11801_ts_dt_ids, }, .id_table = max11801_ts_id, .probe = max11801_ts_probe, - .remove = max11801_ts_remove, }; module_i2c_driver(max11801_ts_driver); |