Commit | Line | Data |
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97fb5e8d | 1 | // SPDX-License-Identifier: GPL-2.0-only |
4065d1e7 | 2 | /* |
9664877e | 3 | * cyttsp_i2c.c |
4065d1e7 JMC |
4 | * Cypress TrueTouch(TM) Standard Product (TTSP) I2C touchscreen driver. |
5 | * For use with Cypress Txx3xx parts. | |
6 | * Supported parts include: | |
7 | * CY8CTST341 | |
8 | * CY8CTMA340 | |
9 | * | |
10 | * Copyright (C) 2009, 2010, 2011 Cypress Semiconductor, Inc. | |
11 | * Copyright (C) 2012 Javier Martinez Canillas <javier@dowhile0.org> | |
12 | * | |
9664877e | 13 | * Contact Cypress Semiconductor at www.cypress.com <ttdrivers@cypress.com> |
4065d1e7 JMC |
14 | */ |
15 | ||
16 | #include "cyttsp_core.h" | |
17 | ||
18 | #include <linux/i2c.h> | |
19 | #include <linux/input.h> | |
20 | ||
d27ac0fb DT |
21 | #define CY_I2C_NAME "cyttsp-i2c" |
22 | ||
4065d1e7 JMC |
23 | #define CY_I2C_DATA_SIZE 128 |
24 | ||
4065d1e7 JMC |
25 | static const struct cyttsp_bus_ops cyttsp_i2c_bus_ops = { |
26 | .bustype = BUS_I2C, | |
27 | .write = cyttsp_i2c_write_block_data, | |
28 | .read = cyttsp_i2c_read_block_data, | |
29 | }; | |
30 | ||
667c577a | 31 | static int cyttsp_i2c_probe(struct i2c_client *client) |
4065d1e7 JMC |
32 | { |
33 | struct cyttsp *ts; | |
34 | ||
35 | if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { | |
36 | dev_err(&client->dev, "I2C functionality not Supported\n"); | |
37 | return -EIO; | |
38 | } | |
39 | ||
40 | ts = cyttsp_probe(&cyttsp_i2c_bus_ops, &client->dev, client->irq, | |
41 | CY_I2C_DATA_SIZE); | |
42 | ||
43 | if (IS_ERR(ts)) | |
44 | return PTR_ERR(ts); | |
45 | ||
46 | i2c_set_clientdata(client, ts); | |
4065d1e7 JMC |
47 | return 0; |
48 | } | |
49 | ||
4065d1e7 JMC |
50 | static const struct i2c_device_id cyttsp_i2c_id[] = { |
51 | { CY_I2C_NAME, 0 }, | |
52 | { } | |
53 | }; | |
54 | MODULE_DEVICE_TABLE(i2c, cyttsp_i2c_id); | |
55 | ||
007704c9 LW |
56 | static const struct of_device_id cyttsp_of_i2c_match[] = { |
57 | { .compatible = "cypress,cy8ctma340", }, | |
58 | { .compatible = "cypress,cy8ctst341", }, | |
59 | { /* sentinel */ } | |
60 | }; | |
61 | MODULE_DEVICE_TABLE(of, cyttsp_of_i2c_match); | |
62 | ||
4065d1e7 JMC |
63 | static struct i2c_driver cyttsp_i2c_driver = { |
64 | .driver = { | |
65 | .name = CY_I2C_NAME, | |
c3c2f2bc | 66 | .pm = pm_sleep_ptr(&cyttsp_pm_ops), |
007704c9 | 67 | .of_match_table = cyttsp_of_i2c_match, |
4065d1e7 | 68 | }, |
667c577a | 69 | .probe_new = cyttsp_i2c_probe, |
4065d1e7 JMC |
70 | .id_table = cyttsp_i2c_id, |
71 | }; | |
72 | ||
4a533835 | 73 | module_i2c_driver(cyttsp_i2c_driver); |
4065d1e7 JMC |
74 | |
75 | MODULE_LICENSE("GPL"); | |
76 | MODULE_DESCRIPTION("Cypress TrueTouch(R) Standard Product (TTSP) I2C driver"); | |
77 | MODULE_AUTHOR("Cypress"); |