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Release 4.14 drivers/mfd/wm831x-i2c.c

Directory: drivers/mfd
/*
 * wm831x-i2c.c  --  I2C access for Wolfson WM831x PMICs
 *
 * Copyright 2009,2010 Wolfson Microelectronics PLC.
 *
 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
 *
 *  This program is free software; you can redistribute  it and/or modify it
 *  under  the terms of  the GNU General  Public License as published by the
 *  Free Software Foundation;  either version 2 of the  License, or (at your
 *  option) any later version.
 *
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/delay.h>
#include <linux/mfd/core.h>
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/regmap.h>

#include <linux/mfd/wm831x/core.h>
#include <linux/mfd/wm831x/pdata.h>


static int wm831x_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct wm831x_pdata *pdata = dev_get_platdata(&i2c->dev); const struct of_device_id *of_id; struct wm831x *wm831x; enum wm831x_parent type; int ret; if (i2c->dev.of_node) { of_id = of_match_device(wm831x_of_match, &i2c->dev); if (!of_id) { dev_err(&i2c->dev, "Failed to match device\n"); return -ENODEV; } type = (enum wm831x_parent)of_id->data; } else { type = (enum wm831x_parent)id->driver_data; } wm831x = devm_kzalloc(&i2c->dev, sizeof(struct wm831x), GFP_KERNEL); if (wm831x == NULL) return -ENOMEM; i2c_set_clientdata(i2c, wm831x); wm831x->dev = &i2c->dev; wm831x->type = type; wm831x->regmap = devm_regmap_init_i2c(i2c, &wm831x_regmap_config); if (IS_ERR(wm831x->regmap)) { ret = PTR_ERR(wm831x->regmap); dev_err(wm831x->dev, "Failed to allocate register map: %d\n", ret); return ret; } if (pdata) memcpy(&wm831x->pdata, pdata, sizeof(*pdata)); return wm831x_device_init(wm831x, i2c->irq); }

Contributors

PersonTokensPropCommitsCommitProp
Mark Brown12552.08%466.67%
Charles Keepax9439.17%116.67%
Gustavo A. R. Silva218.75%116.67%
Total240100.00%6100.00%


static int wm831x_i2c_remove(struct i2c_client *i2c) { struct wm831x *wm831x = i2c_get_clientdata(i2c); wm831x_device_exit(wm831x); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Mark Brown29100.00%1100.00%
Total29100.00%1100.00%


static int wm831x_i2c_suspend(struct device *dev) { struct wm831x *wm831x = dev_get_drvdata(dev); return wm831x_device_suspend(wm831x); }

Contributors

PersonTokensPropCommitsCommitProp
Mark Brown27100.00%2100.00%
Total27100.00%2100.00%


static int wm831x_i2c_poweroff(struct device *dev) { struct wm831x *wm831x = dev_get_drvdata(dev); wm831x_device_shutdown(wm831x); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Mark Brown29100.00%2100.00%
Total29100.00%2100.00%

static const struct i2c_device_id wm831x_i2c_id[] = { { "wm8310", WM8310 }, { "wm8311", WM8311 }, { "wm8312", WM8312 }, { "wm8320", WM8320 }, { "wm8321", WM8321 }, { "wm8325", WM8325 }, { "wm8326", WM8326 }, { } }; MODULE_DEVICE_TABLE(i2c, wm831x_i2c_id); static const struct dev_pm_ops wm831x_pm_ops = { .suspend = wm831x_i2c_suspend, .poweroff = wm831x_i2c_poweroff, }; static struct i2c_driver wm831x_i2c_driver = { .driver = { .name = "wm831x", .pm = &wm831x_pm_ops, .of_match_table = of_match_ptr(wm831x_of_match), }, .probe = wm831x_i2c_probe, .remove = wm831x_i2c_remove, .id_table = wm831x_i2c_id, };
static int __init wm831x_i2c_init(void) { int ret; ret = i2c_add_driver(&wm831x_i2c_driver); if (ret != 0) pr_err("Failed to register wm831x I2C driver: %d\n", ret); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
Mark Brown36100.00%1100.00%
Total36100.00%1100.00%

subsys_initcall(wm831x_i2c_init);
static void __exit wm831x_i2c_exit(void) { i2c_del_driver(&wm831x_i2c_driver); }

Contributors

PersonTokensPropCommitsCommitProp
Mark Brown15100.00%1100.00%
Total15100.00%1100.00%

module_exit(wm831x_i2c_exit);

Overall Contributors

PersonTokensPropCommitsCommitProp
Mark Brown41876.42%880.00%
Charles Keepax10819.74%110.00%
Gustavo A. R. Silva213.84%110.00%
Total547100.00%10100.00%
Directory: drivers/mfd
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