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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * DRM driver for Solomon SSD13xx OLED displays (I2C bus)4 *5 * Copyright 2022 Red Hat Inc.6 * Author: Javier Martinez Canillas <javierm@redhat.com>7 *8 * Based on drivers/video/fbdev/ssd1307fb.c9 * Copyright 2012 Free Electrons10 */11#include <linux/i2c.h>12#include <linux/module.h>13 14#include "ssd130x.h"15 16#define DRIVER_NAME "ssd130x-i2c"17#define DRIVER_DESC "DRM driver for Solomon SSD13xx OLED displays (I2C)"18 19static const struct regmap_config ssd130x_i2c_regmap_config = {20 .reg_bits = 8,21 .val_bits = 8,22};23 24static int ssd130x_i2c_probe(struct i2c_client *client)25{26 struct ssd130x_device *ssd130x;27 struct regmap *regmap;28 29 regmap = devm_regmap_init_i2c(client, &ssd130x_i2c_regmap_config);30 if (IS_ERR(regmap))31 return PTR_ERR(regmap);32 33 ssd130x = ssd130x_probe(&client->dev, regmap);34 if (IS_ERR(ssd130x))35 return PTR_ERR(ssd130x);36 37 i2c_set_clientdata(client, ssd130x);38 39 return 0;40}41 42static void ssd130x_i2c_remove(struct i2c_client *client)43{44 struct ssd130x_device *ssd130x = i2c_get_clientdata(client);45 46 ssd130x_remove(ssd130x);47}48 49static void ssd130x_i2c_shutdown(struct i2c_client *client)50{51 struct ssd130x_device *ssd130x = i2c_get_clientdata(client);52 53 ssd130x_shutdown(ssd130x);54}55 56static const struct of_device_id ssd130x_of_match[] = {57 /* ssd130x family */58 {59 .compatible = "sinowealth,sh1106",60 .data = &ssd130x_variants[SH1106_ID],61 },62 {63 .compatible = "solomon,ssd1305",64 .data = &ssd130x_variants[SSD1305_ID],65 },66 {67 .compatible = "solomon,ssd1306",68 .data = &ssd130x_variants[SSD1306_ID],69 },70 {71 .compatible = "solomon,ssd1307",72 .data = &ssd130x_variants[SSD1307_ID],73 },74 {75 .compatible = "solomon,ssd1309",76 .data = &ssd130x_variants[SSD1309_ID],77 },78 /* Deprecated but kept for backward compatibility */79 {80 .compatible = "solomon,ssd1305fb-i2c",81 .data = &ssd130x_variants[SSD1305_ID],82 },83 {84 .compatible = "solomon,ssd1306fb-i2c",85 .data = &ssd130x_variants[SSD1306_ID],86 },87 {88 .compatible = "solomon,ssd1307fb-i2c",89 .data = &ssd130x_variants[SSD1307_ID],90 },91 {92 .compatible = "solomon,ssd1309fb-i2c",93 .data = &ssd130x_variants[SSD1309_ID],94 },95 /* ssd132x family */96 {97 .compatible = "solomon,ssd1322",98 .data = &ssd130x_variants[SSD1322_ID],99 },100 {101 .compatible = "solomon,ssd1325",102 .data = &ssd130x_variants[SSD1325_ID],103 },104 {105 .compatible = "solomon,ssd1327",106 .data = &ssd130x_variants[SSD1327_ID],107 },108 { /* sentinel */ }109};110MODULE_DEVICE_TABLE(of, ssd130x_of_match);111 112static struct i2c_driver ssd130x_i2c_driver = {113 .driver = {114 .name = DRIVER_NAME,115 .of_match_table = ssd130x_of_match,116 },117 .probe = ssd130x_i2c_probe,118 .remove = ssd130x_i2c_remove,119 .shutdown = ssd130x_i2c_shutdown,120};121module_i2c_driver(ssd130x_i2c_driver);122 123MODULE_DESCRIPTION(DRIVER_DESC);124MODULE_AUTHOR("Javier Martinez Canillas <javierm@redhat.com>");125MODULE_LICENSE("GPL v2");126MODULE_IMPORT_NS(DRM_SSD130X);127