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104 lines
2.5 KiB
104 lines
2.5 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* Copyright (C) 2017 Texas Instruments Incorporated - https://www.ti.com/ |
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* |
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* Author: Keerthy <[email protected]> |
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*/ |
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#include <linux/interrupt.h> |
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#include <linux/mfd/core.h> |
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#include <linux/module.h> |
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#include <linux/of_device.h> |
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#include <linux/regmap.h> |
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#include <linux/mfd/lp87565.h> |
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static const struct regmap_config lp87565_regmap_config = { |
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.reg_bits = 8, |
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.val_bits = 8, |
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.max_register = LP87565_REG_MAX, |
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}; |
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static const struct mfd_cell lp87565_cells[] = { |
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{ .name = "lp87565-q1-regulator", }, |
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{ .name = "lp87565-q1-gpio", }, |
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}; |
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static const struct of_device_id of_lp87565_match_table[] = { |
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{ .compatible = "ti,lp87565", }, |
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{ |
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.compatible = "ti,lp87524-q1", |
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.data = (void *)LP87565_DEVICE_TYPE_LP87524_Q1, |
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}, |
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{ |
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.compatible = "ti,lp87565-q1", |
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.data = (void *)LP87565_DEVICE_TYPE_LP87565_Q1, |
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}, |
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{ |
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.compatible = "ti,lp87561-q1", |
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.data = (void *)LP87565_DEVICE_TYPE_LP87561_Q1, |
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}, |
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{} |
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}; |
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MODULE_DEVICE_TABLE(of, of_lp87565_match_table); |
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static int lp87565_probe(struct i2c_client *client, |
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const struct i2c_device_id *ids) |
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{ |
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struct lp87565 *lp87565; |
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const struct of_device_id *of_id; |
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int ret; |
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unsigned int otpid; |
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lp87565 = devm_kzalloc(&client->dev, sizeof(*lp87565), GFP_KERNEL); |
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if (!lp87565) |
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return -ENOMEM; |
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lp87565->dev = &client->dev; |
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lp87565->regmap = devm_regmap_init_i2c(client, &lp87565_regmap_config); |
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if (IS_ERR(lp87565->regmap)) { |
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ret = PTR_ERR(lp87565->regmap); |
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dev_err(lp87565->dev, |
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"Failed to initialize register map: %d\n", ret); |
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return ret; |
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} |
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ret = regmap_read(lp87565->regmap, LP87565_REG_OTP_REV, &otpid); |
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if (ret) { |
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dev_err(lp87565->dev, "Failed to read OTP ID\n"); |
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return ret; |
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} |
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lp87565->rev = otpid & LP87565_OTP_REV_OTP_ID; |
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of_id = of_match_device(of_lp87565_match_table, &client->dev); |
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if (of_id) |
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lp87565->dev_type = (enum lp87565_device_type)of_id->data; |
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i2c_set_clientdata(client, lp87565); |
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return devm_mfd_add_devices(lp87565->dev, PLATFORM_DEVID_AUTO, |
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lp87565_cells, ARRAY_SIZE(lp87565_cells), |
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NULL, 0, NULL); |
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} |
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static const struct i2c_device_id lp87565_id_table[] = { |
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{ "lp87565-q1", 0 }, |
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{ }, |
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}; |
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MODULE_DEVICE_TABLE(i2c, lp87565_id_table); |
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static struct i2c_driver lp87565_driver = { |
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.driver = { |
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.name = "lp87565", |
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.of_match_table = of_lp87565_match_table, |
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}, |
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.probe = lp87565_probe, |
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.id_table = lp87565_id_table, |
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}; |
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module_i2c_driver(lp87565_driver); |
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MODULE_AUTHOR("J Keerthy <[email protected]>"); |
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MODULE_DESCRIPTION("lp87565 chip family Multi-Function Device driver"); |
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MODULE_LICENSE("GPL v2");
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