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114 lines
2.8 KiB
114 lines
2.8 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* I2C driver for the X-Powers' Power Management ICs |
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* |
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* AXP20x typically comprises an adaptive USB-Compatible PWM charger, BUCK DC-DC |
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* converters, LDOs, multiple 12-bit ADCs of voltage, current and temperature |
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* as well as configurable GPIOs. |
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* |
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* This driver supports the I2C variants. |
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* |
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* Copyright (C) 2014 Carlo Caione |
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* |
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* Author: Carlo Caione <[email protected]> |
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*/ |
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#include <linux/acpi.h> |
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#include <linux/err.h> |
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#include <linux/i2c.h> |
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#include <linux/module.h> |
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#include <linux/mfd/axp20x.h> |
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#include <linux/of.h> |
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#include <linux/regmap.h> |
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#include <linux/slab.h> |
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static int axp20x_i2c_probe(struct i2c_client *i2c, |
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const struct i2c_device_id *id) |
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{ |
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struct axp20x_dev *axp20x; |
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int ret; |
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axp20x = devm_kzalloc(&i2c->dev, sizeof(*axp20x), GFP_KERNEL); |
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if (!axp20x) |
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return -ENOMEM; |
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axp20x->dev = &i2c->dev; |
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axp20x->irq = i2c->irq; |
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dev_set_drvdata(axp20x->dev, axp20x); |
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ret = axp20x_match_device(axp20x); |
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if (ret) |
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return ret; |
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axp20x->regmap = devm_regmap_init_i2c(i2c, axp20x->regmap_cfg); |
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if (IS_ERR(axp20x->regmap)) { |
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ret = PTR_ERR(axp20x->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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return axp20x_device_probe(axp20x); |
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} |
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static int axp20x_i2c_remove(struct i2c_client *i2c) |
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{ |
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struct axp20x_dev *axp20x = i2c_get_clientdata(i2c); |
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axp20x_device_remove(axp20x); |
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return 0; |
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} |
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#ifdef CONFIG_OF |
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static const struct of_device_id axp20x_i2c_of_match[] = { |
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{ .compatible = "x-powers,axp152", .data = (void *)AXP152_ID }, |
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{ .compatible = "x-powers,axp202", .data = (void *)AXP202_ID }, |
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{ .compatible = "x-powers,axp209", .data = (void *)AXP209_ID }, |
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{ .compatible = "x-powers,axp221", .data = (void *)AXP221_ID }, |
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{ .compatible = "x-powers,axp223", .data = (void *)AXP223_ID }, |
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{ .compatible = "x-powers,axp803", .data = (void *)AXP803_ID }, |
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{ .compatible = "x-powers,axp806", .data = (void *)AXP806_ID }, |
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{ }, |
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}; |
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MODULE_DEVICE_TABLE(of, axp20x_i2c_of_match); |
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#endif |
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static const struct i2c_device_id axp20x_i2c_id[] = { |
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{ "axp152", 0 }, |
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{ "axp202", 0 }, |
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{ "axp209", 0 }, |
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{ "axp221", 0 }, |
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{ "axp223", 0 }, |
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{ "axp803", 0 }, |
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{ "axp806", 0 }, |
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{ }, |
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}; |
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MODULE_DEVICE_TABLE(i2c, axp20x_i2c_id); |
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#ifdef CONFIG_ACPI |
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static const struct acpi_device_id axp20x_i2c_acpi_match[] = { |
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{ |
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.id = "INT33F4", |
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.driver_data = AXP288_ID, |
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}, |
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{ }, |
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}; |
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MODULE_DEVICE_TABLE(acpi, axp20x_i2c_acpi_match); |
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#endif |
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static struct i2c_driver axp20x_i2c_driver = { |
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.driver = { |
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.name = "axp20x-i2c", |
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.of_match_table = of_match_ptr(axp20x_i2c_of_match), |
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.acpi_match_table = ACPI_PTR(axp20x_i2c_acpi_match), |
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}, |
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.probe = axp20x_i2c_probe, |
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.remove = axp20x_i2c_remove, |
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.id_table = axp20x_i2c_id, |
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}; |
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module_i2c_driver(axp20x_i2c_driver); |
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MODULE_DESCRIPTION("PMIC MFD I2C driver for AXP20X"); |
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MODULE_AUTHOR("Carlo Caione <[email protected]>"); |
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MODULE_LICENSE("GPL");
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