1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * I2C bus interface for ATC260x PMICs 4 * 5 * Copyright (C) 2019 Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> 6 * Copyright (C) 2020 Cristian Ciocaltea <cristian.ciocaltea@gmail.com> 7 */ 8 9 #include <linux/i2c.h> 10 #include <linux/mfd/atc260x/core.h> 11 #include <linux/module.h> 12 #include <linux/of.h> 13 #include <linux/regmap.h> 14 15 static int atc260x_i2c_probe(struct i2c_client *client) 16 { 17 struct atc260x *atc260x; 18 struct regmap_config regmap_cfg; 19 int ret; 20 21 atc260x = devm_kzalloc(&client->dev, sizeof(*atc260x), GFP_KERNEL); 22 if (!atc260x) 23 return -ENOMEM; 24 25 atc260x->dev = &client->dev; 26 atc260x->irq = client->irq; 27 28 ret = atc260x_match_device(atc260x, ®map_cfg); 29 if (ret) 30 return ret; 31 32 i2c_set_clientdata(client, atc260x); 33 34 atc260x->regmap = devm_regmap_init_i2c(client, ®map_cfg); 35 if (IS_ERR(atc260x->regmap)) { 36 ret = PTR_ERR(atc260x->regmap); 37 dev_err(&client->dev, "failed to init regmap: %d\n", ret); 38 return ret; 39 } 40 41 return atc260x_device_probe(atc260x); 42 } 43 44 static const struct of_device_id atc260x_i2c_of_match[] = { 45 { .compatible = "actions,atc2603c", .data = (void *)ATC2603C }, 46 { .compatible = "actions,atc2609a", .data = (void *)ATC2609A }, 47 { } 48 }; 49 MODULE_DEVICE_TABLE(of, atc260x_i2c_of_match); 50 51 static struct i2c_driver atc260x_i2c_driver = { 52 .driver = { 53 .name = "atc260x", 54 .of_match_table = of_match_ptr(atc260x_i2c_of_match), 55 }, 56 .probe_new = atc260x_i2c_probe, 57 }; 58 module_i2c_driver(atc260x_i2c_driver); 59 60 MODULE_DESCRIPTION("ATC260x PMICs I2C bus interface"); 61 MODULE_AUTHOR("Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>"); 62 MODULE_AUTHOR("Cristian Ciocaltea <cristian.ciocaltea@gmail.com>"); 63 MODULE_LICENSE("GPL"); 64