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ASoC: tlv320aic32x4: Add SPI support

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Add support for running the tlv32x4 control channel over SPI rather than I2C.

Signed-off-by: Jeremy McDermond <nh6z@nh6z.net>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Jeremy McDermond 2016-04-18 17:24:06 -07:00 committed by Mark Brown
parent 3bcfd222f6
commit 125bc681bc
3 changed files with 84 additions and 0 deletions
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6
sound/soc/codecs/Kconfig
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@ -130,6 +130,7 @@ config SND_SOC_ALL_CODECS
select SND_SOC_TLV320AIC26 if SPI_MASTER
select SND_SOC_TLV320AIC31XX if I2C
select SND_SOC_TLV320AIC32X4_I2C if I2C
select SND_SOC_TLV320AIC32X4_SPI if SPI_MASTER
select SND_SOC_TLV320AIC3X if I2C
select SND_SOC_TPA6130A2 if I2C
select SND_SOC_TLV320DAC33 if I2C
@ -774,6 +775,11 @@ config SND_SOC_TLV320AIC32X4_I2C
depends on I2C
select SND_SOC_TLV320AIC32X4
config SND_SOC_TLV320AIC32X4_SPI
tristate
depends on SPI_MASTER
select SND_SOC_TLV320AIC32X4
config SND_SOC_TLV320AIC3X
tristate "Texas Instruments TLV320AIC3x CODECs"
depends on I2C

2
sound/soc/codecs/Makefile
View File

@ -137,6 +137,7 @@ snd-soc-tlv320aic26-objs := tlv320aic26.o
snd-soc-tlv320aic31xx-objs := tlv320aic31xx.o
snd-soc-tlv320aic32x4-objs := tlv320aic32x4.o
snd-soc-tlv320aic32x4-i2c-objs := tlv320aic32x4-i2c.o
snd-soc-tlv320aic32x4-spi-objs := tlv320aic32x4-spi.o
snd-soc-tlv320aic3x-objs := tlv320aic3x.o
snd-soc-tlv320dac33-objs := tlv320dac33.o
snd-soc-ts3a227e-objs := ts3a227e.o
@ -344,6 +345,7 @@ obj-$(CONFIG_SND_SOC_TLV320AIC26) += snd-soc-tlv320aic26.o
obj-$(CONFIG_SND_SOC_TLV320AIC31XX) += snd-soc-tlv320aic31xx.o
obj-$(CONFIG_SND_SOC_TLV320AIC32X4) += snd-soc-tlv320aic32x4.o
obj-$(CONFIG_SND_SOC_TLV320AIC32X4_I2C) += snd-soc-tlv320aic32x4-i2c.o
obj-$(CONFIG_SND_SOC_TLV320AIC32X4_SPI) += snd-soc-tlv320aic32x4-spi.o
obj-$(CONFIG_SND_SOC_TLV320AIC3X) += snd-soc-tlv320aic3x.o
obj-$(CONFIG_SND_SOC_TLV320DAC33) += snd-soc-tlv320dac33.o
obj-$(CONFIG_SND_SOC_TS3A227E) += snd-soc-ts3a227e.o

76
sound/soc/codecs/tlv320aic32x4-spi.c Normal file
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@ -0,0 +1,76 @@
/*
* linux/sound/soc/codecs/tlv320aic32x4-spi.c
*
* Copyright 2011 NW Digital Radio
*
* Author: Jeremy McDermond <nh6z@nh6z.net>
*
* Based on sound/soc/codecs/wm8974 and TI driver for kernel 2.6.27.
*
* 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.
*
* 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.
*/
#include <linux/spi/spi.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/regmap.h>
#include <sound/soc.h>
#include "tlv320aic32x4.h"
static int aic32x4_spi_probe(struct spi_device *spi)
{
struct regmap *regmap;
struct regmap_config config;
config = aic32x4_regmap_config;
config.reg_bits = 7;
config.pad_bits = 1;
config.val_bits = 8;
config.read_flag_mask = 0x01;
regmap = devm_regmap_init_spi(spi, &config);
return aic32x4_probe(&spi->dev, regmap);
}
static int aic32x4_spi_remove(struct spi_device *spi)
{
return aic32x4_remove(&spi->dev);
}
static const struct spi_device_id aic32x4_spi_id[] = {
{ "tlv320aic32x4", 0 },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(spi, aic32x4_spi_id);
static const struct of_device_id aic32x4_of_id[] = {
{ .compatible = "ti,tlv320aic32x4", },
{ /* senitel */ }
};
MODULE_DEVICE_TABLE(of, aic32x4_of_id);
static struct spi_driver aic32x4_spi_driver = {
.driver = {
.name = "tlv320aic32x4",
.owner = THIS_MODULE,
.of_match_table = aic32x4_of_id,
},
.probe = aic32x4_spi_probe,
.remove = aic32x4_spi_remove,
.id_table = aic32x4_spi_id,
};
module_spi_driver(aic32x4_spi_driver);
MODULE_DESCRIPTION("ASoC TLV320AIC32x4 codec driver SPI");
MODULE_AUTHOR("Jeremy McDermond <nh6z@nh6z.net>");
MODULE_LICENSE("GPL");