83 lines
2.1 KiB
C
83 lines
2.1 KiB
C
/*
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* Copyright (C) 2019 reMarkable AS - http://www.remarkable.com/
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*
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* Author: Lars Ivar Miljeteig <lars.ivar.miljeteig@remarkable.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.
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*
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* Based on the lp87565 driver by Keerthy <j-keerthy@ti.com>
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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/sy7636a.h>
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static const struct regmap_config sy7636a_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 const struct mfd_cell sy7636a_cells[] = {
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{ .name = "sy7636a-regulator", },
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{ .name = "sy7636a-temperature", },
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};
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static const struct of_device_id of_sy7636a_match_table[] = {
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{ .compatible = "silergy,sy7636a", },
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{}
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};
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MODULE_DEVICE_TABLE(of, of_sy7636a_match_table);
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static int sy7636a_probe(struct i2c_client *client,
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const struct i2c_device_id *ids)
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{
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struct sy7636a *sy7636a;
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int ret;
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sy7636a = devm_kzalloc(&client->dev, sizeof(struct sy7636a), GFP_KERNEL);
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if (sy7636a == NULL)
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return -ENOMEM;
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sy7636a->dev = &client->dev;
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sy7636a->regmap = devm_regmap_init_i2c(client, &sy7636a_regmap_config);
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if (IS_ERR(sy7636a->regmap)) {
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ret = PTR_ERR(sy7636a->regmap);
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dev_err(sy7636a->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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i2c_set_clientdata(client, sy7636a);
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return devm_mfd_add_devices(sy7636a->dev, PLATFORM_DEVID_AUTO,
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sy7636a_cells, ARRAY_SIZE(sy7636a_cells),
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NULL, 0, NULL);
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}
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static const struct i2c_device_id sy7636a_id_table[] = {
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{ "sy7636a", 0 },
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{ },
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};
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MODULE_DEVICE_TABLE(i2c, sy7636a_id_table);
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static struct i2c_driver sy7636a_driver = {
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.driver = {
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.name = "sy7636a",
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.of_match_table = of_sy7636a_match_table,
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},
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.probe = sy7636a_probe,
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.id_table = sy7636a_id_table,
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};
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module_i2c_driver(sy7636a_driver);
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MODULE_AUTHOR("Lars Ivar Miljeteig <lars.ivar.miljeteig@remarkable.com>");
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MODULE_DESCRIPTION("Silergy SY7636A Multi-Function Device Driver");
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MODULE_LICENSE("GPL v2");
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