From 1b347b6891335a30131899dd16ec6ca843c578f0 Mon Sep 17 00:00:00 2001 From: Jacob Siverskog Date: Fri, 22 Jan 2016 13:39:53 +0100 Subject: [PATCH 1/3] ASoC: pcm179x: Split into core and SPI parts The pcm179x family supports both SPI and I2C for configuration. This patch splits the driver into core and SPI parts, in preparation for I2C support. Signed-off-by: Jacob Siverskog Reviewed-by: Johan Hovold Acked-by: Michael Trimarchi Signed-off-by: Mark Brown --- sound/soc/codecs/Kconfig | 11 +++++- sound/soc/codecs/Makefile | 2 + sound/soc/codecs/pcm179x-spi.c | 72 ++++++++++++++++++++++++++++++++++ sound/soc/codecs/pcm179x.c | 52 ++++++------------------ sound/soc/codecs/pcm179x.h | 5 +++ 5 files changed, 99 insertions(+), 43 deletions(-) create mode 100644 sound/soc/codecs/pcm179x-spi.c diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index 50693c867e71..ae720f1b15e8 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -87,7 +87,7 @@ config SND_SOC_ALL_CODECS select SND_SOC_ML26124 if I2C select SND_SOC_NAU8825 if I2C select SND_SOC_PCM1681 if I2C - select SND_SOC_PCM179X if SPI_MASTER + select SND_SOC_PCM179X_SPI if SPI_MASTER select SND_SOC_PCM3008 select SND_SOC_PCM3168A_I2C if I2C select SND_SOC_PCM3168A_SPI if SPI_MASTER @@ -527,8 +527,15 @@ config SND_SOC_PCM1681 depends on I2C config SND_SOC_PCM179X - tristate "Texas Instruments PCM179X CODEC" + tristate + +config SND_SOC_PCM179X_SPI + tristate "Texas Instruments PCM179X CODEC (SPI)" depends on SPI_MASTER + select SND_SOC_PCM179X + help + Enable support for Texas Instruments PCM179x CODEC. + Select this if your PCM179x is connected via an SPI bus. config SND_SOC_PCM3008 tristate diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index d44f7d347183..56e94d88693f 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -81,6 +81,7 @@ snd-soc-ml26124-objs := ml26124.o snd-soc-nau8825-objs := nau8825.o snd-soc-pcm1681-objs := pcm1681.o snd-soc-pcm179x-codec-objs := pcm179x.o +snd-soc-pcm179x-spi-objs := pcm179x-spi.o snd-soc-pcm3008-objs := pcm3008.o snd-soc-pcm3168a-objs := pcm3168a.o snd-soc-pcm3168a-i2c-objs := pcm3168a-i2c.o @@ -285,6 +286,7 @@ obj-$(CONFIG_SND_SOC_ML26124) += snd-soc-ml26124.o obj-$(CONFIG_SND_SOC_NAU8825) += snd-soc-nau8825.o obj-$(CONFIG_SND_SOC_PCM1681) += snd-soc-pcm1681.o obj-$(CONFIG_SND_SOC_PCM179X) += snd-soc-pcm179x-codec.o +obj-$(CONFIG_SND_SOC_PCM179X_SPI) += snd-soc-pcm179x-spi.o obj-$(CONFIG_SND_SOC_PCM3008) += snd-soc-pcm3008.o obj-$(CONFIG_SND_SOC_PCM3168A) += snd-soc-pcm3168a.o obj-$(CONFIG_SND_SOC_PCM3168A_I2C) += snd-soc-pcm3168a-i2c.o diff --git a/sound/soc/codecs/pcm179x-spi.c b/sound/soc/codecs/pcm179x-spi.c new file mode 100644 index 000000000000..da924d444083 --- /dev/null +++ b/sound/soc/codecs/pcm179x-spi.c @@ -0,0 +1,72 @@ +/* + * PCM179X ASoC SPI driver + * + * Copyright (c) Amarula Solutions B.V. 2013 + * + * Michael Trimarchi + * + * 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 +#include +#include +#include + +#include "pcm179x.h" + +static int pcm179x_spi_probe(struct spi_device *spi) +{ + struct regmap *regmap; + int ret; + + regmap = devm_regmap_init_spi(spi, &pcm179x_regmap_config); + if (IS_ERR(regmap)) { + ret = PTR_ERR(regmap); + dev_err(&spi->dev, "Failed to allocate regmap: %d\n", ret); + return ret; + } + + return pcm179x_common_init(&spi->dev, regmap); +} + +static int pcm179x_spi_remove(struct spi_device *spi) +{ + return pcm179x_common_exit(&spi->dev); +} + +static const struct of_device_id pcm179x_of_match[] = { + { .compatible = "ti,pcm1792a", }, + { } +}; +MODULE_DEVICE_TABLE(of, pcm179x_of_match); + +static const struct spi_device_id pcm179x_spi_ids[] = { + { "pcm179x", 0 }, + { }, +}; +MODULE_DEVICE_TABLE(spi, pcm179x_spi_ids); + +static struct spi_driver pcm179x_spi_driver = { + .driver = { + .name = "pcm179x", + .of_match_table = of_match_ptr(pcm179x_of_match), + }, + .id_table = pcm179x_spi_ids, + .probe = pcm179x_spi_probe, + .remove = pcm179x_spi_remove, +}; + +module_spi_driver(pcm179x_spi_driver); + +MODULE_DESCRIPTION("ASoC PCM179X SPI driver"); +MODULE_AUTHOR("Michael Trimarchi "); +MODULE_LICENSE("GPL"); diff --git a/sound/soc/codecs/pcm179x.c b/sound/soc/codecs/pcm179x.c index a56c7b767d90..8f20f70af23e 100644 --- a/sound/soc/codecs/pcm179x.c +++ b/sound/soc/codecs/pcm179x.c @@ -20,7 +20,6 @@ #include #include #include -#include #include #include @@ -29,7 +28,6 @@ #include #include #include -#include #include "pcm179x.h" @@ -194,13 +192,7 @@ static struct snd_soc_dai_driver pcm179x_dai = { .ops = &pcm179x_dai_ops, }; -static const struct of_device_id pcm179x_of_match[] = { - { .compatible = "ti,pcm1792a", }, - { } -}; -MODULE_DEVICE_TABLE(of, pcm179x_of_match); - -static const struct regmap_config pcm179x_regmap = { +const struct regmap_config pcm179x_regmap_config = { .reg_bits = 8, .val_bits = 8, .max_register = 23, @@ -209,6 +201,7 @@ static const struct regmap_config pcm179x_regmap = { .writeable_reg = pcm179x_writeable_reg, .readable_reg = pcm179x_accessible_reg, }; +EXPORT_SYMBOL_GPL(pcm179x_regmap_config); static struct snd_soc_codec_driver soc_codec_dev_pcm179x = { .controls = pcm179x_controls, @@ -219,52 +212,29 @@ static struct snd_soc_codec_driver soc_codec_dev_pcm179x = { .num_dapm_routes = ARRAY_SIZE(pcm179x_dapm_routes), }; -static int pcm179x_spi_probe(struct spi_device *spi) +int pcm179x_common_init(struct device *dev, struct regmap *regmap) { struct pcm179x_private *pcm179x; - int ret; - pcm179x = devm_kzalloc(&spi->dev, sizeof(struct pcm179x_private), + pcm179x = devm_kzalloc(dev, sizeof(struct pcm179x_private), GFP_KERNEL); if (!pcm179x) return -ENOMEM; - spi_set_drvdata(spi, pcm179x); + pcm179x->regmap = regmap; + dev_set_drvdata(dev, pcm179x); - pcm179x->regmap = devm_regmap_init_spi(spi, &pcm179x_regmap); - if (IS_ERR(pcm179x->regmap)) { - ret = PTR_ERR(pcm179x->regmap); - dev_err(&spi->dev, "Failed to register regmap: %d\n", ret); - return ret; - } - - return snd_soc_register_codec(&spi->dev, + return snd_soc_register_codec(dev, &soc_codec_dev_pcm179x, &pcm179x_dai, 1); } +EXPORT_SYMBOL_GPL(pcm179x_common_init); -static int pcm179x_spi_remove(struct spi_device *spi) +int pcm179x_common_exit(struct device *dev) { - snd_soc_unregister_codec(&spi->dev); + snd_soc_unregister_codec(dev); return 0; } - -static const struct spi_device_id pcm179x_spi_ids[] = { - { "pcm179x", 0 }, - { }, -}; -MODULE_DEVICE_TABLE(spi, pcm179x_spi_ids); - -static struct spi_driver pcm179x_codec_driver = { - .driver = { - .name = "pcm179x", - .of_match_table = of_match_ptr(pcm179x_of_match), - }, - .id_table = pcm179x_spi_ids, - .probe = pcm179x_spi_probe, - .remove = pcm179x_spi_remove, -}; - -module_spi_driver(pcm179x_codec_driver); +EXPORT_SYMBOL_GPL(pcm179x_common_exit); MODULE_DESCRIPTION("ASoC PCM179X driver"); MODULE_AUTHOR("Michael Trimarchi "); diff --git a/sound/soc/codecs/pcm179x.h b/sound/soc/codecs/pcm179x.h index c6fdc062a497..c4eea4df915b 100644 --- a/sound/soc/codecs/pcm179x.h +++ b/sound/soc/codecs/pcm179x.h @@ -24,4 +24,9 @@ #define PCM1792A_FORMATS (SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S24_LE | \ SNDRV_PCM_FMTBIT_S16_LE) +extern const struct regmap_config pcm179x_regmap_config; + +int pcm179x_common_init(struct device *dev, struct regmap *regmap); +int pcm179x_common_exit(struct device *dev); + #endif From 70e3e56e6c3d499be47322037ed4a42314a8e509 Mon Sep 17 00:00:00 2001 From: Jacob Siverskog Date: Fri, 22 Jan 2016 13:39:54 +0100 Subject: [PATCH 2/3] ASoC: pcm179x: Add I2C interface driver The PCM179x family supports both SPI and I2C. This patch adds support for the I2C interface. Signed-off-by: Jacob Siverskog Reviewed-by: Johan Hovold Acked-by: Michael Trimarchi Signed-off-by: Mark Brown --- .../devicetree/bindings/sound/pcm179x.txt | 11 ++- sound/soc/codecs/Kconfig | 9 +++ sound/soc/codecs/Makefile | 2 + sound/soc/codecs/pcm179x-i2c.c | 73 +++++++++++++++++++ 4 files changed, 94 insertions(+), 1 deletion(-) create mode 100644 sound/soc/codecs/pcm179x-i2c.c diff --git a/Documentation/devicetree/bindings/sound/pcm179x.txt b/Documentation/devicetree/bindings/sound/pcm179x.txt index 4ae70d3462d6..436c2b247693 100644 --- a/Documentation/devicetree/bindings/sound/pcm179x.txt +++ b/Documentation/devicetree/bindings/sound/pcm179x.txt @@ -1,6 +1,6 @@ Texas Instruments pcm179x DT bindings -This driver supports the SPI bus. +This driver supports both the I2C and SPI bus. Required properties: @@ -9,6 +9,11 @@ Required properties: For required properties on SPI, please consult Documentation/devicetree/bindings/spi/spi-bus.txt +Required properties on I2C: + + - reg: the I2C address + + Examples: codec_spi: 1792a@0 { @@ -16,3 +21,7 @@ Examples: spi-max-frequency = <600000>; }; + codec_i2c: 1792a@4c { + compatible = "ti,pcm1792a"; + reg = <0x4c>; + }; diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index ae720f1b15e8..3a8fcf13200f 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -87,6 +87,7 @@ config SND_SOC_ALL_CODECS select SND_SOC_ML26124 if I2C select SND_SOC_NAU8825 if I2C select SND_SOC_PCM1681 if I2C + select SND_SOC_PCM179X_I2C if I2C select SND_SOC_PCM179X_SPI if SPI_MASTER select SND_SOC_PCM3008 select SND_SOC_PCM3168A_I2C if I2C @@ -529,6 +530,14 @@ config SND_SOC_PCM1681 config SND_SOC_PCM179X tristate +config SND_SOC_PCM179X_I2C + tristate "Texas Instruments PCM179X CODEC (I2C)" + depends on I2C + select SND_SOC_PCM179X + help + Enable support for Texas Instruments PCM179x CODEC. + Select this if your PCM179x is connected via an I2C bus. + config SND_SOC_PCM179X_SPI tristate "Texas Instruments PCM179X CODEC (SPI)" depends on SPI_MASTER diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index 56e94d88693f..9acd777a7a98 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -81,6 +81,7 @@ snd-soc-ml26124-objs := ml26124.o snd-soc-nau8825-objs := nau8825.o snd-soc-pcm1681-objs := pcm1681.o snd-soc-pcm179x-codec-objs := pcm179x.o +snd-soc-pcm179x-i2c-objs := pcm179x-i2c.o snd-soc-pcm179x-spi-objs := pcm179x-spi.o snd-soc-pcm3008-objs := pcm3008.o snd-soc-pcm3168a-objs := pcm3168a.o @@ -286,6 +287,7 @@ obj-$(CONFIG_SND_SOC_ML26124) += snd-soc-ml26124.o obj-$(CONFIG_SND_SOC_NAU8825) += snd-soc-nau8825.o obj-$(CONFIG_SND_SOC_PCM1681) += snd-soc-pcm1681.o obj-$(CONFIG_SND_SOC_PCM179X) += snd-soc-pcm179x-codec.o +obj-$(CONFIG_SND_SOC_PCM179X_I2C) += snd-soc-pcm179x-i2c.o obj-$(CONFIG_SND_SOC_PCM179X_SPI) += snd-soc-pcm179x-spi.o obj-$(CONFIG_SND_SOC_PCM3008) += snd-soc-pcm3008.o obj-$(CONFIG_SND_SOC_PCM3168A) += snd-soc-pcm3168a.o diff --git a/sound/soc/codecs/pcm179x-i2c.c b/sound/soc/codecs/pcm179x-i2c.c new file mode 100644 index 000000000000..4118106abb8d --- /dev/null +++ b/sound/soc/codecs/pcm179x-i2c.c @@ -0,0 +1,73 @@ +/* + * PCM179X ASoC I2C driver + * + * Copyright (c) Teenage Engineering AB 2016 + * + * Jacob Siverskog + * + * 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 +#include +#include +#include + +#include "pcm179x.h" + +static int pcm179x_i2c_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct regmap *regmap; + int ret; + + regmap = devm_regmap_init_i2c(client, &pcm179x_regmap_config); + if (IS_ERR(regmap)) { + ret = PTR_ERR(regmap); + dev_err(&client->dev, "Failed to allocate regmap: %d\n", ret); + return ret; + } + + return pcm179x_common_init(&client->dev, regmap); +} + +static int pcm179x_i2c_remove(struct i2c_client *client) +{ + return pcm179x_common_exit(&client->dev); +} + +static const struct of_device_id pcm179x_of_match[] = { + { .compatible = "ti,pcm1792a", }, + { } +}; +MODULE_DEVICE_TABLE(of, pcm179x_of_match); + +static const struct i2c_device_id pcm179x_i2c_ids[] = { + { "pcm179x", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, pcm179x_i2c_ids); + +static struct i2c_driver pcm179x_i2c_driver = { + .driver = { + .name = "pcm179x", + .of_match_table = of_match_ptr(pcm179x_of_match), + }, + .id_table = pcm179x_i2c_ids, + .probe = pcm179x_i2c_probe, + .remove = pcm179x_i2c_remove, +}; + +module_i2c_driver(pcm179x_i2c_driver); + +MODULE_DESCRIPTION("ASoC PCM179X I2C driver"); +MODULE_AUTHOR("Jacob Siverskog "); +MODULE_LICENSE("GPL"); From e0236f541e68aa2187a9a402bf74bec6f007eb84 Mon Sep 17 00:00:00 2001 From: Jacob Siverskog Date: Fri, 22 Jan 2016 13:39:55 +0100 Subject: [PATCH 3/3] ASoC: pcm179x: Support continuous rates According to the PCM179x data sheets sampling frequencies between 10 kHz and 200 kHz are supported. Specify support in the driver. Tested with PCM1791A. References: http://www.ti.com/lit/ds/symlink/pcm1791a.pdf http://www.ti.com/lit/ds/symlink/pcm1792a.pdf http://www.ti.com/lit/ds/symlink/pcm1795.pdf http://www.ti.com/lit/ds/symlink/pcm1796.pdf Signed-off-by: Jacob Siverskog Reviewed-by: Johan Hovold Acked-by: Michael Trimarchi Signed-off-by: Mark Brown --- sound/soc/codecs/pcm179x.c | 4 +++- sound/soc/codecs/pcm179x.h | 4 ---- 2 files changed, 3 insertions(+), 5 deletions(-) diff --git a/sound/soc/codecs/pcm179x.c b/sound/soc/codecs/pcm179x.c index 8f20f70af23e..06a66579ca6d 100644 --- a/sound/soc/codecs/pcm179x.c +++ b/sound/soc/codecs/pcm179x.c @@ -187,7 +187,9 @@ static struct snd_soc_dai_driver pcm179x_dai = { .stream_name = "Playback", .channels_min = 2, .channels_max = 2, - .rates = PCM1792A_RATES, + .rates = SNDRV_PCM_RATE_CONTINUOUS, + .rate_min = 10000, + .rate_max = 200000, .formats = PCM1792A_FORMATS, }, .ops = &pcm179x_dai_ops, }; diff --git a/sound/soc/codecs/pcm179x.h b/sound/soc/codecs/pcm179x.h index c4eea4df915b..11e331268aae 100644 --- a/sound/soc/codecs/pcm179x.h +++ b/sound/soc/codecs/pcm179x.h @@ -17,10 +17,6 @@ #ifndef __PCM179X_H__ #define __PCM179X_H__ -#define PCM1792A_RATES (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_8000_48000 | \ - SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | \ - SNDRV_PCM_RATE_192000) - #define PCM1792A_FORMATS (SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S24_LE | \ SNDRV_PCM_FMTBIT_S16_LE)