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3787255c96
'struct i2c_device_id' is not modified in this driver. Constifying this structure moves some data to a read-only section, so increase overall security. While at it, also add some space to be consistent with cs42l51_of_match a few lines below. On a x86_64, with allmodconfig: Before: ====== text data bss dec hex filename 1551 384 16 1951 79f sound/soc/codecs/cs42l51-i2c.o After: ===== text data bss dec hex filename 1631 304 16 1951 79f sound/soc/codecs/cs42l51-i2c.o Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://patch.msgid.link/d5e686f47eddb14245d0fde693ff77ae749f7a08.1731689646.git.christophe.jaillet@wanadoo.fr Signed-off-by: Mark Brown <broonie@kernel.org>
62 lines
1.3 KiB
C
62 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* cs42l56.c -- CS42L51 ALSA SoC I2C audio driver
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*
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* Copyright 2014 CirrusLogic, Inc.
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*
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* Author: Brian Austin <brian.austin@cirrus.com>
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*/
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#include <linux/i2c.h>
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#include <linux/module.h>
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#include <sound/soc.h>
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#include "cs42l51.h"
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static const struct i2c_device_id cs42l51_i2c_id[] = {
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{ "cs42l51" },
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{ }
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};
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MODULE_DEVICE_TABLE(i2c, cs42l51_i2c_id);
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static const struct of_device_id cs42l51_of_match[] = {
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{ .compatible = "cirrus,cs42l51", },
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{ }
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};
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MODULE_DEVICE_TABLE(of, cs42l51_of_match);
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static int cs42l51_i2c_probe(struct i2c_client *i2c)
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{
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struct regmap_config config;
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config = cs42l51_regmap;
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return cs42l51_probe(&i2c->dev, devm_regmap_init_i2c(i2c, &config));
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}
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static void cs42l51_i2c_remove(struct i2c_client *i2c)
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{
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cs42l51_remove(&i2c->dev);
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}
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static const struct dev_pm_ops cs42l51_pm_ops = {
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SET_SYSTEM_SLEEP_PM_OPS(cs42l51_suspend, cs42l51_resume)
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};
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static struct i2c_driver cs42l51_i2c_driver = {
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.driver = {
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.name = "cs42l51",
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.of_match_table = cs42l51_of_match,
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.pm = &cs42l51_pm_ops,
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},
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.probe = cs42l51_i2c_probe,
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.remove = cs42l51_i2c_remove,
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.id_table = cs42l51_i2c_id,
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};
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module_i2c_driver(cs42l51_i2c_driver);
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MODULE_DESCRIPTION("ASoC CS42L51 I2C Driver");
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MODULE_AUTHOR("Brian Austin, Cirrus Logic Inc, <brian.austin@cirrus.com>");
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MODULE_LICENSE("GPL");
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