// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/ * * Author: Keerthy <j-keerthy@ti.com> */ #include <linux/interrupt.h> #include <linux/mfd/core.h> #include <linux/module.h> #include <linux/of_device.h> #include <linux/regmap.h> #include <linux/mfd/lp87565.h> static const struct regmap_config lp87565_regmap_config = { .reg_bits = 8, .val_bits = 8, .max_register = LP87565_REG_MAX, }; static const struct mfd_cell lp87565_cells[] = { { .name = "lp87565-q1-regulator", }, { .name = "lp87565-q1-gpio", }, }; static const struct of_device_id of_lp87565_match_table[] = { { .compatible = "ti,lp87565", }, { .compatible = "ti,lp87565-q1", .data = (void *)LP87565_DEVICE_TYPE_LP87565_Q1, }, {} }; MODULE_DEVICE_TABLE(of, of_lp87565_match_table); static int lp87565_probe(struct i2c_client *client, const struct i2c_device_id *ids) { struct lp87565 *lp87565; const struct of_device_id *of_id; int ret; unsigned int otpid; lp87565 = devm_kzalloc(&client->dev, sizeof(*lp87565), GFP_KERNEL); if (!lp87565) return -ENOMEM; lp87565->dev = &client->dev; lp87565->regmap = devm_regmap_init_i2c(client, &lp87565_regmap_config); if (IS_ERR(lp87565->regmap)) { ret = PTR_ERR(lp87565->regmap); dev_err(lp87565->dev, "Failed to initialize register map: %d\n", ret); return ret; } ret = regmap_read(lp87565->regmap, LP87565_REG_OTP_REV, &otpid); if (ret) { dev_err(lp87565->dev, "Failed to read OTP ID\n"); return ret; } lp87565->rev = otpid & LP87565_OTP_REV_OTP_ID; of_id = of_match_device(of_lp87565_match_table, &client->dev); if (of_id) lp87565->dev_type = (enum lp87565_device_type)of_id->data; i2c_set_clientdata(client, lp87565); return devm_mfd_add_devices(lp87565->dev, PLATFORM_DEVID_AUTO, lp87565_cells, ARRAY_SIZE(lp87565_cells), NULL, 0, NULL); } static const struct i2c_device_id lp87565_id_table[] = { { "lp87565-q1", 0 }, { }, }; MODULE_DEVICE_TABLE(i2c, lp87565_id_table); static struct i2c_driver lp87565_driver = { .driver = { .name = "lp87565", .of_match_table = of_lp87565_match_table, }, .probe = lp87565_probe, .id_table = lp87565_id_table, }; module_i2c_driver(lp87565_driver); MODULE_AUTHOR("J Keerthy <j-keerthy@ti.com>"); MODULE_DESCRIPTION("lp87565 chip family Multi-Function Device driver"); MODULE_LICENSE("GPL v2");