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79 lines
1.8 KiB
79 lines
1.8 KiB
// SPDX-License-Identifier: GPL-2.0+ |
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/* |
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* MP2629 parent driver for ADC and battery charger |
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* |
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* Copyright 2020 Monolithic Power Systems, Inc |
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* |
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* Author: Saravanan Sekar <[email protected]> |
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*/ |
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#include <linux/i2c.h> |
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#include <linux/kernel.h> |
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#include <linux/mfd/core.h> |
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#include <linux/mfd/mp2629.h> |
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#include <linux/module.h> |
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#include <linux/platform_device.h> |
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#include <linux/regmap.h> |
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#include <linux/slab.h> |
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static const struct mfd_cell mp2629_cell[] = { |
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{ |
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.name = "mp2629_adc", |
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.of_compatible = "mps,mp2629_adc", |
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}, |
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{ |
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.name = "mp2629_charger", |
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.of_compatible = "mps,mp2629_charger", |
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} |
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}; |
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static const struct regmap_config mp2629_regmap_config = { |
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.reg_bits = 8, |
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.val_bits = 8, |
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.max_register = 0x17, |
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}; |
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static int mp2629_probe(struct i2c_client *client) |
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{ |
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struct mp2629_data *ddata; |
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int ret; |
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ddata = devm_kzalloc(&client->dev, sizeof(*ddata), GFP_KERNEL); |
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if (!ddata) |
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return -ENOMEM; |
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ddata->dev = &client->dev; |
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i2c_set_clientdata(client, ddata); |
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ddata->regmap = devm_regmap_init_i2c(client, &mp2629_regmap_config); |
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if (IS_ERR(ddata->regmap)) { |
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dev_err(ddata->dev, "Failed to allocate regmap\n"); |
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return PTR_ERR(ddata->regmap); |
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} |
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ret = devm_mfd_add_devices(ddata->dev, PLATFORM_DEVID_AUTO, mp2629_cell, |
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ARRAY_SIZE(mp2629_cell), NULL, 0, NULL); |
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if (ret) |
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dev_err(ddata->dev, "Failed to register sub-devices %d\n", ret); |
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return ret; |
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} |
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static const struct of_device_id mp2629_of_match[] = { |
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{ .compatible = "mps,mp2629"}, |
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{ } |
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}; |
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MODULE_DEVICE_TABLE(of, mp2629_of_match); |
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static struct i2c_driver mp2629_driver = { |
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.driver = { |
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.name = "mp2629", |
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.of_match_table = mp2629_of_match, |
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}, |
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.probe_new = mp2629_probe, |
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}; |
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module_i2c_driver(mp2629_driver); |
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MODULE_AUTHOR("Saravanan Sekar <[email protected]>"); |
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MODULE_DESCRIPTION("MP2629 Battery charger parent driver"); |
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MODULE_LICENSE("GPL");
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