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ASoC: cs42l51: split i2c from codec driver
This patch removes the i2c bus code from the codec driver and creates seperate i2c driver. Signed-off-by: Brian Austin <brian.austin@cirrus.com> Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Brian Austin
Mark Brown
parent
c9eaa447e7
commit
a1253ef6d3
@ -39,7 +39,7 @@ config SND_SOC_ALL_CODECS
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select SND_SOC_ALC5623 if I2C
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select SND_SOC_ALC5632 if I2C
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select SND_SOC_CQ0093VC if MFD_DAVINCI_VOICECODEC
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select SND_SOC_CS42L51 if I2C
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select SND_SOC_CS42L51_I2C if I2C
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select SND_SOC_CS42L52 if I2C
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select SND_SOC_CS42L73 if I2C
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select SND_SOC_CS4270 if I2C
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@ -280,6 +280,10 @@ config SND_SOC_CQ0093VC
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config SND_SOC_CS42L51
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tristate
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config SND_SOC_CS42L51_I2C
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tristate
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select SND_SOC_CS42L51
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config SND_SOC_CS42L52
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tristate "Cirrus Logic CS42L52 CODEC"
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depends on I2C
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@ -26,6 +26,7 @@ snd-soc-ak5386-objs := ak5386.o
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snd-soc-arizona-objs := arizona.o
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snd-soc-cq93vc-objs := cq93vc.o
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snd-soc-cs42l51-objs := cs42l51.o
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snd-soc-cs42l51-i2c-objs := cs42l51-i2c.o
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snd-soc-cs42l52-objs := cs42l52.o
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snd-soc-cs42l73-objs := cs42l73.o
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snd-soc-cs4270-objs := cs4270.o
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@ -177,6 +178,7 @@ obj-$(CONFIG_SND_SOC_ALC5632) += snd-soc-alc5632.o
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obj-$(CONFIG_SND_SOC_ARIZONA) += snd-soc-arizona.o
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obj-$(CONFIG_SND_SOC_CQ0093VC) += snd-soc-cq93vc.o
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obj-$(CONFIG_SND_SOC_CS42L51) += snd-soc-cs42l51.o
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obj-$(CONFIG_SND_SOC_CS42L51_I2C) += snd-soc-cs42l51-i2c.o
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obj-$(CONFIG_SND_SOC_CS42L52) += snd-soc-cs42l52.o
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obj-$(CONFIG_SND_SOC_CS42L73) += snd-soc-cs42l73.o
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obj-$(CONFIG_SND_SOC_CS4270) += snd-soc-cs4270.o
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59
sound/soc/codecs/cs42l51-i2c.c
Normal file
59
sound/soc/codecs/cs42l51-i2c.c
Normal file
@ -0,0 +1,59 @@
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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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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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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 struct i2c_device_id cs42l51_i2c_id[] = {
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{"cs42l51", 0},
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{}
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};
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MODULE_DEVICE_TABLE(i2c, cs42l51_i2c_id);
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static int cs42l51_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_config config;
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config = cs42l51_regmap;
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config.val_bits = 8;
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config.reg_bits = 8;
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return cs42l51_probe(&i2c->dev, devm_regmap_init_i2c(i2c, &config));
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}
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static int cs42l51_i2c_remove(struct i2c_client *i2c)
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{
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snd_soc_unregister_codec(&i2c->dev);
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return 0;
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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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.owner = THIS_MODULE,
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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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@ -29,7 +29,6 @@
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#include <sound/initval.h>
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#include <sound/pcm_params.h>
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#include <sound/pcm.h>
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#include <linux/i2c.h>
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#include <linux/regmap.h>
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#include "cs42l51.h"
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@ -483,7 +482,7 @@ static struct snd_soc_dai_driver cs42l51_dai = {
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.ops = &cs42l51_dai_ops,
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};
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static int cs42l51_probe(struct snd_soc_codec *codec)
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static int cs42l51_codec_probe(struct snd_soc_codec *codec)
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{
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int ret, reg;
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@ -504,7 +503,7 @@ static int cs42l51_probe(struct snd_soc_codec *codec)
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}
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static struct snd_soc_codec_driver soc_codec_device_cs42l51 = {
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.probe = cs42l51_probe,
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.probe = cs42l51_codec_probe,
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.controls = cs42l51_snd_controls,
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.num_controls = ARRAY_SIZE(cs42l51_snd_controls),
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@ -514,91 +513,55 @@ static struct snd_soc_codec_driver soc_codec_device_cs42l51 = {
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.num_dapm_routes = ARRAY_SIZE(cs42l51_routes),
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};
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static const struct regmap_config cs42l51_regmap = {
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.reg_bits = 8,
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.val_bits = 8,
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const struct regmap_config cs42l51_regmap = {
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.max_register = CS42L51_CHARGE_FREQ,
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.cache_type = REGCACHE_RBTREE,
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};
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EXPORT_SYMBOL_GPL(cs42l51_regmap);
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static int cs42l51_i2c_probe(struct i2c_client *i2c_client,
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const struct i2c_device_id *id)
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int cs42l51_probe(struct device *dev, struct regmap *regmap)
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{
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struct cs42l51_private *cs42l51;
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struct regmap *regmap;
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unsigned int val;
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int ret;
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regmap = devm_regmap_init_i2c(i2c_client, &cs42l51_regmap);
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if (IS_ERR(regmap)) {
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ret = PTR_ERR(regmap);
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dev_err(&i2c_client->dev, "Failed to create regmap: %d\n",
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ret);
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return ret;
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}
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if (IS_ERR(regmap))
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return PTR_ERR(regmap);
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cs42l51 = devm_kzalloc(dev, sizeof(struct cs42l51_private),
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GFP_KERNEL);
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if (!cs42l51)
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return -ENOMEM;
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dev_set_drvdata(dev, cs42l51);
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/* Verify that we have a CS42L51 */
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ret = regmap_read(regmap, CS42L51_CHIP_REV_ID, &val);
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if (ret < 0) {
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dev_err(&i2c_client->dev, "failed to read I2C\n");
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dev_err(dev, "failed to read I2C\n");
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goto error;
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}
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if ((val != CS42L51_MK_CHIP_REV(CS42L51_CHIP_ID, CS42L51_CHIP_REV_A)) &&
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(val != CS42L51_MK_CHIP_REV(CS42L51_CHIP_ID, CS42L51_CHIP_REV_B))) {
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dev_err(&i2c_client->dev, "Invalid chip id: %x\n", val);
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dev_err(dev, "Invalid chip id: %x\n", val);
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ret = -ENODEV;
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goto error;
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}
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dev_info(dev, "Cirrus Logic CS42L51, Revision: %02X\n", val & 0xFF);
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dev_info(&i2c_client->dev, "found device cs42l51 rev %d\n",
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val & 7);
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cs42l51 = devm_kzalloc(&i2c_client->dev, sizeof(struct cs42l51_private),
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GFP_KERNEL);
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if (!cs42l51)
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return -ENOMEM;
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i2c_set_clientdata(i2c_client, cs42l51);
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ret = snd_soc_register_codec(&i2c_client->dev,
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ret = snd_soc_register_codec(dev,
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&soc_codec_device_cs42l51, &cs42l51_dai, 1);
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error:
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return ret;
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}
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static int cs42l51_i2c_remove(struct i2c_client *client)
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{
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snd_soc_unregister_codec(&client->dev);
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return 0;
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}
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static const struct i2c_device_id cs42l51_id[] = {
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{"cs42l51", 0},
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{}
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};
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MODULE_DEVICE_TABLE(i2c, cs42l51_id);
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EXPORT_SYMBOL_GPL(cs42l51_probe);
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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 struct i2c_driver cs42l51_i2c_driver = {
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.driver = {
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.name = "cs42l51-codec",
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.owner = THIS_MODULE,
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.of_match_table = cs42l51_of_match,
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},
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.id_table = cs42l51_id,
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.probe = cs42l51_i2c_probe,
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.remove = cs42l51_i2c_remove,
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};
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module_i2c_driver(cs42l51_i2c_driver);
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MODULE_AUTHOR("Arnaud Patard <arnaud.patard@rtp-net.org>");
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MODULE_DESCRIPTION("Cirrus Logic CS42L51 ALSA SoC Codec Driver");
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MODULE_LICENSE("GPL");
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@ -18,6 +18,11 @@
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#ifndef _CS42L51_H
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#define _CS42L51_H
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struct device;
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extern const struct regmap_config cs42l51_regmap;
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int cs42l51_probe(struct device *dev, struct regmap *regmap);
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#define CS42L51_CHIP_ID 0x1B
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#define CS42L51_CHIP_REV_A 0x00
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#define CS42L51_CHIP_REV_B 0x01
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