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ASoC: tlv320aic32x4: Add SPI support
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>
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@ -130,6 +130,7 @@ config SND_SOC_ALL_CODECS
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select SND_SOC_TLV320AIC26 if SPI_MASTER
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select SND_SOC_TLV320AIC31XX if I2C
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select SND_SOC_TLV320AIC32X4_I2C if I2C
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select SND_SOC_TLV320AIC32X4_SPI if SPI_MASTER
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select SND_SOC_TLV320AIC3X if I2C
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select SND_SOC_TPA6130A2 if I2C
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select SND_SOC_TLV320DAC33 if I2C
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@ -774,6 +775,11 @@ config SND_SOC_TLV320AIC32X4_I2C
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depends on I2C
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select SND_SOC_TLV320AIC32X4
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config SND_SOC_TLV320AIC32X4_SPI
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tristate
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depends on SPI_MASTER
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select SND_SOC_TLV320AIC32X4
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config SND_SOC_TLV320AIC3X
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tristate "Texas Instruments TLV320AIC3x CODECs"
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depends on I2C
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@ -137,6 +137,7 @@ snd-soc-tlv320aic26-objs := tlv320aic26.o
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snd-soc-tlv320aic31xx-objs := tlv320aic31xx.o
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snd-soc-tlv320aic32x4-objs := tlv320aic32x4.o
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snd-soc-tlv320aic32x4-i2c-objs := tlv320aic32x4-i2c.o
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snd-soc-tlv320aic32x4-spi-objs := tlv320aic32x4-spi.o
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snd-soc-tlv320aic3x-objs := tlv320aic3x.o
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snd-soc-tlv320dac33-objs := tlv320dac33.o
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snd-soc-ts3a227e-objs := ts3a227e.o
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@ -344,6 +345,7 @@ obj-$(CONFIG_SND_SOC_TLV320AIC26) += snd-soc-tlv320aic26.o
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obj-$(CONFIG_SND_SOC_TLV320AIC31XX) += snd-soc-tlv320aic31xx.o
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obj-$(CONFIG_SND_SOC_TLV320AIC32X4) += snd-soc-tlv320aic32x4.o
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obj-$(CONFIG_SND_SOC_TLV320AIC32X4_I2C) += snd-soc-tlv320aic32x4-i2c.o
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obj-$(CONFIG_SND_SOC_TLV320AIC32X4_SPI) += snd-soc-tlv320aic32x4-spi.o
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obj-$(CONFIG_SND_SOC_TLV320AIC3X) += snd-soc-tlv320aic3x.o
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obj-$(CONFIG_SND_SOC_TLV320DAC33) += snd-soc-tlv320dac33.o
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obj-$(CONFIG_SND_SOC_TS3A227E) += snd-soc-ts3a227e.o
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76
sound/soc/codecs/tlv320aic32x4-spi.c
Normal file
76
sound/soc/codecs/tlv320aic32x4-spi.c
Normal file
@ -0,0 +1,76 @@
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/*
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* linux/sound/soc/codecs/tlv320aic32x4-spi.c
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*
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* Copyright 2011 NW Digital Radio
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*
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* Author: Jeremy McDermond <nh6z@nh6z.net>
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*
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* Based on sound/soc/codecs/wm8974 and TI driver for kernel 2.6.27.
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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 as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/spi/spi.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/regmap.h>
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#include <sound/soc.h>
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#include "tlv320aic32x4.h"
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static int aic32x4_spi_probe(struct spi_device *spi)
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{
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struct regmap *regmap;
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struct regmap_config config;
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config = aic32x4_regmap_config;
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config.reg_bits = 7;
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config.pad_bits = 1;
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config.val_bits = 8;
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config.read_flag_mask = 0x01;
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regmap = devm_regmap_init_spi(spi, &config);
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return aic32x4_probe(&spi->dev, regmap);
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}
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static int aic32x4_spi_remove(struct spi_device *spi)
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{
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return aic32x4_remove(&spi->dev);
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}
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static const struct spi_device_id aic32x4_spi_id[] = {
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{ "tlv320aic32x4", 0 },
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{ /* sentinel */ }
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};
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MODULE_DEVICE_TABLE(spi, aic32x4_spi_id);
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static const struct of_device_id aic32x4_of_id[] = {
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{ .compatible = "ti,tlv320aic32x4", },
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{ /* senitel */ }
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};
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MODULE_DEVICE_TABLE(of, aic32x4_of_id);
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static struct spi_driver aic32x4_spi_driver = {
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.driver = {
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.name = "tlv320aic32x4",
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.owner = THIS_MODULE,
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.of_match_table = aic32x4_of_id,
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},
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.probe = aic32x4_spi_probe,
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.remove = aic32x4_spi_remove,
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.id_table = aic32x4_spi_id,
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};
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module_spi_driver(aic32x4_spi_driver);
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MODULE_DESCRIPTION("ASoC TLV320AIC32x4 codec driver SPI");
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MODULE_AUTHOR("Jeremy McDermond <nh6z@nh6z.net>");
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MODULE_LICENSE("GPL");
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