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92 lines
2.0 KiB
92 lines
2.0 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* MFD driver for Active-semi ACT8945a PMIC |
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* |
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* Copyright (C) 2015 Atmel Corporation. |
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* |
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* Author: Wenyou Yang <[email protected]> |
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*/ |
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#include <linux/i2c.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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static const struct mfd_cell act8945a_devs[] = { |
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{ |
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.name = "act8945a-regulator", |
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}, |
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{ |
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.name = "act8945a-charger", |
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.of_compatible = "active-semi,act8945a-charger", |
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}, |
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}; |
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static const struct regmap_config act8945a_regmap_config = { |
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.reg_bits = 8, |
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.val_bits = 8, |
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}; |
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static int act8945a_i2c_probe(struct i2c_client *i2c, |
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const struct i2c_device_id *id) |
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{ |
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int ret; |
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struct regmap *regmap; |
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regmap = devm_regmap_init_i2c(i2c, &act8945a_regmap_config); |
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if (IS_ERR(regmap)) { |
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ret = PTR_ERR(regmap); |
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dev_err(&i2c->dev, "regmap init failed: %d\n", ret); |
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return ret; |
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} |
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i2c_set_clientdata(i2c, regmap); |
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ret = devm_mfd_add_devices(&i2c->dev, PLATFORM_DEVID_NONE, |
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act8945a_devs, ARRAY_SIZE(act8945a_devs), |
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NULL, 0, NULL); |
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if (ret) { |
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dev_err(&i2c->dev, "Failed to add sub devices\n"); |
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return ret; |
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} |
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return 0; |
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} |
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static const struct i2c_device_id act8945a_i2c_id[] = { |
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{ "act8945a", 0 }, |
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{} |
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}; |
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MODULE_DEVICE_TABLE(i2c, act8945a_i2c_id); |
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static const struct of_device_id act8945a_of_match[] = { |
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{ .compatible = "active-semi,act8945a", }, |
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{}, |
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}; |
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MODULE_DEVICE_TABLE(of, act8945a_of_match); |
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static struct i2c_driver act8945a_i2c_driver = { |
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.driver = { |
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.name = "act8945a", |
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.of_match_table = of_match_ptr(act8945a_of_match), |
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}, |
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.probe = act8945a_i2c_probe, |
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.id_table = act8945a_i2c_id, |
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}; |
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static int __init act8945a_i2c_init(void) |
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{ |
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return i2c_add_driver(&act8945a_i2c_driver); |
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} |
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subsys_initcall(act8945a_i2c_init); |
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static void __exit act8945a_i2c_exit(void) |
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{ |
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i2c_del_driver(&act8945a_i2c_driver); |
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} |
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module_exit(act8945a_i2c_exit); |
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MODULE_DESCRIPTION("ACT8945A PMIC multi-function driver"); |
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MODULE_AUTHOR("Wenyou Yang <[email protected]>"); |
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MODULE_LICENSE("GPL");
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