mirror of https://gitee.com/openkylin/linux.git
95 lines
2.3 KiB
C
95 lines
2.3 KiB
C
/*
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* Driver for the PCM512x CODECs
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*
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* Author: Mark Brown <broonie@kernel.org>
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* Copyright 2014 Linaro Ltd
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*/
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/i2c.h>
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#include <linux/acpi.h>
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#include "pcm512x.h"
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static int pcm512x_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 regmap *regmap;
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struct regmap_config config = pcm512x_regmap;
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/* msb needs to be set to enable auto-increment of addresses */
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config.read_flag_mask = 0x80;
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config.write_flag_mask = 0x80;
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regmap = devm_regmap_init_i2c(i2c, &config);
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if (IS_ERR(regmap))
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return PTR_ERR(regmap);
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return pcm512x_probe(&i2c->dev, regmap);
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}
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static int pcm512x_i2c_remove(struct i2c_client *i2c)
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{
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pcm512x_remove(&i2c->dev);
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return 0;
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}
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static const struct i2c_device_id pcm512x_i2c_id[] = {
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{ "pcm5121", },
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{ "pcm5122", },
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{ "pcm5141", },
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{ "pcm5142", },
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{ }
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};
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MODULE_DEVICE_TABLE(i2c, pcm512x_i2c_id);
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#if defined(CONFIG_OF)
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static const struct of_device_id pcm512x_of_match[] = {
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{ .compatible = "ti,pcm5121", },
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{ .compatible = "ti,pcm5122", },
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{ .compatible = "ti,pcm5141", },
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{ .compatible = "ti,pcm5142", },
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{ }
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};
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MODULE_DEVICE_TABLE(of, pcm512x_of_match);
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#endif
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#ifdef CONFIG_ACPI
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static const struct acpi_device_id pcm512x_acpi_match[] = {
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{ "104C5121", 0 },
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{ "104C5122", 0 },
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{ "104C5141", 0 },
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{ "104C5142", 0 },
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{ },
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};
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MODULE_DEVICE_TABLE(acpi, pcm512x_acpi_match);
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#endif
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static struct i2c_driver pcm512x_i2c_driver = {
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.probe = pcm512x_i2c_probe,
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.remove = pcm512x_i2c_remove,
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.id_table = pcm512x_i2c_id,
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.driver = {
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.name = "pcm512x",
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.of_match_table = of_match_ptr(pcm512x_of_match),
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.acpi_match_table = ACPI_PTR(pcm512x_acpi_match),
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.pm = &pcm512x_pm_ops,
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},
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};
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module_i2c_driver(pcm512x_i2c_driver);
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MODULE_DESCRIPTION("ASoC PCM512x codec driver - I2C");
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MODULE_AUTHOR("Mark Brown <broonie@kernel.org>");
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MODULE_LICENSE("GPL v2");
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