forked from luck/tmp_suning_uos_patched
caab277b1d
Based on 1 normalized pattern(s): 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 this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 503 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Enrico Weigelt <info@metux.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190602204653.811534538@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
92 lines
2.2 KiB
C
92 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* sky81452.c SKY81452 MFD driver
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*
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* Copyright 2014 Skyworks Solutions Inc.
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* Author : Gyungoh Yoo <jack.yoo@skyworksinc.com>
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/err.h>
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#include <linux/slab.h>
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#include <linux/i2c.h>
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#include <linux/regmap.h>
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#include <linux/mfd/core.h>
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#include <linux/mfd/sky81452.h>
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static const struct regmap_config sky81452_config = {
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.reg_bits = 8,
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.val_bits = 8,
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};
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static int sky81452_probe(struct i2c_client *client,
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const struct i2c_device_id *id)
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{
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struct device *dev = &client->dev;
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const struct sky81452_platform_data *pdata = dev_get_platdata(dev);
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struct mfd_cell cells[2];
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struct regmap *regmap;
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int ret;
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if (!pdata) {
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pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
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if (!pdata)
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return -ENOMEM;
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}
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regmap = devm_regmap_init_i2c(client, &sky81452_config);
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if (IS_ERR(regmap)) {
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dev_err(dev, "failed to initialize.err=%ld\n", PTR_ERR(regmap));
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return PTR_ERR(regmap);
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}
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i2c_set_clientdata(client, regmap);
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memset(cells, 0, sizeof(cells));
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cells[0].name = "sky81452-backlight";
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cells[0].of_compatible = "skyworks,sky81452-backlight";
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cells[0].platform_data = pdata->bl_pdata;
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cells[0].pdata_size = sizeof(*pdata->bl_pdata);
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cells[1].name = "sky81452-regulator";
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cells[1].platform_data = pdata->regulator_init_data;
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cells[1].pdata_size = sizeof(*pdata->regulator_init_data);
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ret = devm_mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells),
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NULL, 0, NULL);
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if (ret)
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dev_err(dev, "failed to add child devices. err=%d\n", ret);
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return ret;
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}
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static const struct i2c_device_id sky81452_ids[] = {
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{ "sky81452" },
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{ }
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};
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MODULE_DEVICE_TABLE(i2c, sky81452_ids);
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#ifdef CONFIG_OF
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static const struct of_device_id sky81452_of_match[] = {
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{ .compatible = "skyworks,sky81452", },
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{ }
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};
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MODULE_DEVICE_TABLE(of, sky81452_of_match);
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#endif
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static struct i2c_driver sky81452_driver = {
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.driver = {
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.name = "sky81452",
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.of_match_table = of_match_ptr(sky81452_of_match),
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},
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.probe = sky81452_probe,
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.id_table = sky81452_ids,
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};
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module_i2c_driver(sky81452_driver);
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MODULE_DESCRIPTION("Skyworks SKY81452 MFD driver");
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MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>");
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MODULE_LICENSE("GPL v2");
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