cregit-Linux how code gets into the kernel

Release 4.7 drivers/mfd/axp20x-i2c.c

Directory: drivers/mfd
/*
 * I2C driver for the X-Powers' Power Management ICs
 *
 * AXP20x typically comprises an adaptive USB-Compatible PWM charger, BUCK DC-DC
 * converters, LDOs, multiple 12-bit ADCs of voltage, current and temperature
 * as well as configurable GPIOs.
 *
 * This driver supports the I2C variants.
 *
 * Copyright (C) 2014 Carlo Caione
 *
 * Author: Carlo Caione <carlo@caione.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/acpi.h>
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/mfd/axp20x.h>
#include <linux/of.h>
#include <linux/regmap.h>
#include <linux/slab.h>


static int axp20x_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct axp20x_dev *axp20x; int ret; axp20x = devm_kzalloc(&i2c->dev, sizeof(*axp20x), GFP_KERNEL); if (!axp20x) return -ENOMEM; axp20x->dev = &i2c->dev; axp20x->irq = i2c->irq; dev_set_drvdata(axp20x->dev, axp20x); ret = axp20x_match_device(axp20x); if (ret) return ret; axp20x->regmap = devm_regmap_init_i2c(i2c, axp20x->regmap_cfg); if (IS_ERR(axp20x->regmap)) { ret = PTR_ERR(axp20x->regmap); dev_err(&i2c->dev, "regmap init failed: %d\n", ret); return ret; } return axp20x_device_probe(axp20x); }

Contributors

PersonTokensPropCommitsCommitProp
chen-yu tsaichen-yu tsai146100.00%1100.00%
Total146100.00%1100.00%


static int axp20x_i2c_remove(struct i2c_client *i2c) { struct axp20x_dev *axp20x = i2c_get_clientdata(i2c); return axp20x_device_remove(axp20x); }

Contributors

PersonTokensPropCommitsCommitProp
chen-yu tsaichen-yu tsai27100.00%1100.00%
Total27100.00%1100.00%

static const struct of_device_id axp20x_i2c_of_match[] = { { .compatible = "x-powers,axp152", .data = (void *)AXP152_ID }, { .compatible = "x-powers,axp202", .data = (void *)AXP202_ID }, { .compatible = "x-powers,axp209", .data = (void *)AXP209_ID }, { .compatible = "x-powers,axp221", .data = (void *)AXP221_ID }, { }, }; MODULE_DEVICE_TABLE(of, axp20x_i2c_of_match); /* * This is useless for OF-enabled devices, but it is needed by I2C subsystem */ static const struct i2c_device_id axp20x_i2c_id[] = { { }, }; MODULE_DEVICE_TABLE(i2c, axp20x_i2c_id); static const struct acpi_device_id axp20x_i2c_acpi_match[] = { { .id = "INT33F4", .driver_data = AXP288_ID, }, { }, }; MODULE_DEVICE_TABLE(acpi, axp20x_i2c_acpi_match); static struct i2c_driver axp20x_i2c_driver = { .driver = { .name = "axp20x-i2c", .of_match_table = of_match_ptr(axp20x_i2c_of_match), .acpi_match_table = ACPI_PTR(axp20x_i2c_acpi_match), }, .probe = axp20x_i2c_probe, .remove = axp20x_i2c_remove, .id_table = axp20x_i2c_id, }; module_i2c_driver(axp20x_i2c_driver); MODULE_DESCRIPTION("PMIC MFD I2C driver for AXP20X"); MODULE_AUTHOR("Carlo Caione <carlo@caione.org>"); MODULE_LICENSE("GPL");

Overall Contributors

PersonTokensPropCommitsCommitProp
chen-yu tsaichen-yu tsai397100.00%1100.00%
Total397100.00%1100.00%
Directory: drivers/mfd
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
{% endraw %}