This source file includes following definitions.
- tsc2004_cmd
- tsc2004_probe
- tsc2004_remove
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9 #include <linux/module.h>
10 #include <linux/input.h>
11 #include <linux/of.h>
12 #include <linux/i2c.h>
13 #include <linux/regmap.h>
14 #include "tsc200x-core.h"
15
16 static const struct input_id tsc2004_input_id = {
17 .bustype = BUS_I2C,
18 .product = 2004,
19 };
20
21 static int tsc2004_cmd(struct device *dev, u8 cmd)
22 {
23 u8 tx = TSC200X_CMD | TSC200X_CMD_12BIT | cmd;
24 s32 data;
25 struct i2c_client *i2c = to_i2c_client(dev);
26
27 data = i2c_smbus_write_byte(i2c, tx);
28 if (data < 0) {
29 dev_err(dev, "%s: failed, command: %x i2c error: %d\n",
30 __func__, cmd, data);
31 return data;
32 }
33
34 return 0;
35 }
36
37 static int tsc2004_probe(struct i2c_client *i2c,
38 const struct i2c_device_id *id)
39
40 {
41 return tsc200x_probe(&i2c->dev, i2c->irq, &tsc2004_input_id,
42 devm_regmap_init_i2c(i2c, &tsc200x_regmap_config),
43 tsc2004_cmd);
44 }
45
46 static int tsc2004_remove(struct i2c_client *i2c)
47 {
48 return tsc200x_remove(&i2c->dev);
49 }
50
51 static const struct i2c_device_id tsc2004_idtable[] = {
52 { "tsc2004", 0 },
53 { }
54 };
55 MODULE_DEVICE_TABLE(i2c, tsc2004_idtable);
56
57 #ifdef CONFIG_OF
58 static const struct of_device_id tsc2004_of_match[] = {
59 { .compatible = "ti,tsc2004" },
60 { }
61 };
62 MODULE_DEVICE_TABLE(of, tsc2004_of_match);
63 #endif
64
65 static struct i2c_driver tsc2004_driver = {
66 .driver = {
67 .name = "tsc2004",
68 .of_match_table = of_match_ptr(tsc2004_of_match),
69 .pm = &tsc200x_pm_ops,
70 },
71 .id_table = tsc2004_idtable,
72 .probe = tsc2004_probe,
73 .remove = tsc2004_remove,
74 };
75 module_i2c_driver(tsc2004_driver);
76
77 MODULE_AUTHOR("Michael Welling <mwelling@ieee.org>");
78 MODULE_DESCRIPTION("TSC2004 Touchscreen Driver");
79 MODULE_LICENSE("GPL");