| /* |
| * Copyright 2009-2010 Creative Product Design |
| * Marc Reilly marc@cpdesign.com.au |
| * |
| * 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/slab.h> |
| #include <linux/module.h> |
| #include <linux/platform_device.h> |
| #include <linux/mutex.h> |
| #include <linux/mfd/core.h> |
| #include <linux/mfd/mc13xxx.h> |
| #include <linux/of.h> |
| #include <linux/of_device.h> |
| #include <linux/of_gpio.h> |
| #include <linux/i2c.h> |
| #include <linux/err.h> |
| |
| #include "mc13xxx.h" |
| |
| static const struct i2c_device_id mc13xxx_i2c_device_id[] = { |
| { |
| .name = "mc13892", |
| .driver_data = (kernel_ulong_t)&mc13xxx_variant_mc13892, |
| }, { |
| .name = "mc34708", |
| .driver_data = (kernel_ulong_t)&mc13xxx_variant_mc34708, |
| }, { |
| /* sentinel */ |
| } |
| }; |
| MODULE_DEVICE_TABLE(i2c, mc13xxx_i2c_device_id); |
| |
| static const struct of_device_id mc13xxx_dt_ids[] = { |
| { |
| .compatible = "fsl,mc13892", |
| .data = &mc13xxx_variant_mc13892, |
| }, { |
| .compatible = "fsl,mc34708", |
| .data = &mc13xxx_variant_mc34708, |
| }, { |
| /* sentinel */ |
| } |
| }; |
| MODULE_DEVICE_TABLE(of, mc13xxx_dt_ids); |
| |
| static struct regmap_config mc13xxx_regmap_i2c_config = { |
| .reg_bits = 8, |
| .val_bits = 24, |
| |
| .max_register = MC13XXX_NUMREGS, |
| |
| .cache_type = REGCACHE_NONE, |
| }; |
| |
| static int mc13xxx_i2c_probe(struct i2c_client *client, |
| const struct i2c_device_id *id) |
| { |
| struct mc13xxx *mc13xxx; |
| struct mc13xxx_platform_data *pdata = dev_get_platdata(&client->dev); |
| int ret; |
| |
| mc13xxx = devm_kzalloc(&client->dev, sizeof(*mc13xxx), GFP_KERNEL); |
| if (!mc13xxx) |
| return -ENOMEM; |
| |
| dev_set_drvdata(&client->dev, mc13xxx); |
| |
| mc13xxx->dev = &client->dev; |
| mutex_init(&mc13xxx->lock); |
| |
| mc13xxx->regmap = devm_regmap_init_i2c(client, |
| &mc13xxx_regmap_i2c_config); |
| if (IS_ERR(mc13xxx->regmap)) { |
| ret = PTR_ERR(mc13xxx->regmap); |
| dev_err(mc13xxx->dev, "Failed to initialize register map: %d\n", |
| ret); |
| dev_set_drvdata(&client->dev, NULL); |
| return ret; |
| } |
| |
| if (client->dev.of_node) { |
| const struct of_device_id *of_id = |
| of_match_device(mc13xxx_dt_ids, &client->dev); |
| mc13xxx->variant = of_id->data; |
| } else { |
| mc13xxx->variant = (void *)id->driver_data; |
| } |
| |
| ret = mc13xxx_common_init(mc13xxx, pdata, client->irq); |
| |
| return ret; |
| } |
| |
| static int __devexit mc13xxx_i2c_remove(struct i2c_client *client) |
| { |
| struct mc13xxx *mc13xxx = dev_get_drvdata(&client->dev); |
| |
| mc13xxx_common_cleanup(mc13xxx); |
| |
| return 0; |
| } |
| |
| static struct i2c_driver mc13xxx_i2c_driver = { |
| .id_table = mc13xxx_i2c_device_id, |
| .driver = { |
| .owner = THIS_MODULE, |
| .name = "mc13xxx", |
| .of_match_table = mc13xxx_dt_ids, |
| }, |
| .probe = mc13xxx_i2c_probe, |
| .remove = __devexit_p(mc13xxx_i2c_remove), |
| }; |
| |
| static int __init mc13xxx_i2c_init(void) |
| { |
| return i2c_add_driver(&mc13xxx_i2c_driver); |
| } |
| subsys_initcall(mc13xxx_i2c_init); |
| |
| static void __exit mc13xxx_i2c_exit(void) |
| { |
| i2c_del_driver(&mc13xxx_i2c_driver); |
| } |
| module_exit(mc13xxx_i2c_exit); |
| |
| MODULE_DESCRIPTION("i2c driver for Freescale MC13XXX PMIC"); |
| MODULE_AUTHOR("Marc Reilly <marc@cpdesign.com.au"); |
| MODULE_LICENSE("GPL v2"); |