1 /* 2 * I2C access driver for TI TPS65912x PMICs 3 * 4 * Copyright (C) 2015 Texas Instruments Incorporated - https://www.ti.com/ 5 * Andrew F. Davis <afd@ti.com> 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License version 2 as 9 * published by the Free Software Foundation. 10 * 11 * This program is distributed "as is" WITHOUT ANY WARRANTY of any 12 * kind, whether expressed or implied; without even the implied warranty 13 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License version 2 for more details. 15 * 16 * Based on the TPS65218 driver and the previous TPS65912 driver by 17 * Margarita Olaya Cabrera <magi@slimlogic.co.uk> 18 */ 19 20 #include <linux/i2c.h> 21 #include <linux/module.h> 22 #include <linux/regmap.h> 23 24 #include <linux/mfd/tps65912.h> 25 26 static const struct of_device_id tps65912_i2c_of_match_table[] = { 27 { .compatible = "ti,tps65912", }, 28 { /* sentinel */ } 29 }; 30 MODULE_DEVICE_TABLE(of, tps65912_i2c_of_match_table); 31 32 static int tps65912_i2c_probe(struct i2c_client *client, 33 const struct i2c_device_id *ids) 34 { 35 struct tps65912 *tps; 36 37 tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL); 38 if (!tps) 39 return -ENOMEM; 40 41 i2c_set_clientdata(client, tps); 42 tps->dev = &client->dev; 43 tps->irq = client->irq; 44 45 tps->regmap = devm_regmap_init_i2c(client, &tps65912_regmap_config); 46 if (IS_ERR(tps->regmap)) { 47 dev_err(tps->dev, "Failed to initialize register map\n"); 48 return PTR_ERR(tps->regmap); 49 } 50 51 return tps65912_device_init(tps); 52 } 53 54 static int tps65912_i2c_remove(struct i2c_client *client) 55 { 56 struct tps65912 *tps = i2c_get_clientdata(client); 57 58 return tps65912_device_exit(tps); 59 } 60 61 static const struct i2c_device_id tps65912_i2c_id_table[] = { 62 { "tps65912", 0 }, 63 { /* sentinel */ } 64 }; 65 MODULE_DEVICE_TABLE(i2c, tps65912_i2c_id_table); 66 67 static struct i2c_driver tps65912_i2c_driver = { 68 .driver = { 69 .name = "tps65912", 70 .of_match_table = tps65912_i2c_of_match_table, 71 }, 72 .probe = tps65912_i2c_probe, 73 .remove = tps65912_i2c_remove, 74 .id_table = tps65912_i2c_id_table, 75 }; 76 module_i2c_driver(tps65912_i2c_driver); 77 78 MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>"); 79 MODULE_DESCRIPTION("TPS65912x I2C Interface Driver"); 80 MODULE_LICENSE("GPL v2"); 81