1 // SPDX-License-Identifier: GPL-2.0-only
3 * DRM driver for Solomon SSD130x OLED displays (I2C bus)
5 * Copyright 2022 Red Hat Inc.
6 * Author: Javier Martinez Canillas <javierm@redhat.com>
8 * Based on drivers/video/fbdev/ssd1307fb.c
9 * Copyright 2012 Free Electrons
11 #include <linux/i2c.h>
12 #include <linux/module.h>
16 #define DRIVER_NAME "ssd130x-i2c"
17 #define DRIVER_DESC "DRM driver for Solomon SSD130x OLED displays (I2C)"
19 static const struct regmap_config ssd130x_i2c_regmap_config = {
24 static int ssd130x_i2c_probe(struct i2c_client *client)
26 struct ssd130x_device *ssd130x;
27 struct regmap *regmap;
29 regmap = devm_regmap_init_i2c(client, &ssd130x_i2c_regmap_config);
31 return PTR_ERR(regmap);
33 ssd130x = ssd130x_probe(&client->dev, regmap);
35 return PTR_ERR(ssd130x);
37 i2c_set_clientdata(client, ssd130x);
42 static void ssd130x_i2c_remove(struct i2c_client *client)
44 struct ssd130x_device *ssd130x = i2c_get_clientdata(client);
46 ssd130x_remove(ssd130x);
49 static void ssd130x_i2c_shutdown(struct i2c_client *client)
51 struct ssd130x_device *ssd130x = i2c_get_clientdata(client);
53 ssd130x_shutdown(ssd130x);
56 static const struct of_device_id ssd130x_of_match[] = {
58 .compatible = "sinowealth,sh1106",
59 .data = &ssd130x_variants[SH1106_ID],
62 .compatible = "solomon,ssd1305",
63 .data = &ssd130x_variants[SSD1305_ID],
66 .compatible = "solomon,ssd1306",
67 .data = &ssd130x_variants[SSD1306_ID],
70 .compatible = "solomon,ssd1307",
71 .data = &ssd130x_variants[SSD1307_ID],
74 .compatible = "solomon,ssd1309",
75 .data = &ssd130x_variants[SSD1309_ID],
77 /* Deprecated but kept for backward compatibility */
79 .compatible = "solomon,ssd1305fb-i2c",
80 .data = &ssd130x_variants[SSD1305_ID],
83 .compatible = "solomon,ssd1306fb-i2c",
84 .data = &ssd130x_variants[SSD1306_ID],
87 .compatible = "solomon,ssd1307fb-i2c",
88 .data = &ssd130x_variants[SSD1307_ID],
91 .compatible = "solomon,ssd1309fb-i2c",
92 .data = &ssd130x_variants[SSD1309_ID],
96 MODULE_DEVICE_TABLE(of, ssd130x_of_match);
98 static struct i2c_driver ssd130x_i2c_driver = {
101 .of_match_table = ssd130x_of_match,
103 .probe_new = ssd130x_i2c_probe,
104 .remove = ssd130x_i2c_remove,
105 .shutdown = ssd130x_i2c_shutdown,
107 module_i2c_driver(ssd130x_i2c_driver);
109 MODULE_DESCRIPTION(DRIVER_DESC);
110 MODULE_AUTHOR("Javier Martinez Canillas <javierm@redhat.com>");
111 MODULE_LICENSE("GPL v2");
112 MODULE_IMPORT_NS(DRM_SSD130X);