Commit 9000b59d authored by Jerome Brunet's avatar Jerome Brunet Committed by Mark Brown
Browse files

ASoC: es7134: add es7134 DAC driver 

The es7134 is 24bit, 192Khz i2s DA converter for PCM audio.
Datasheet is available here : http://www.everest-semi.com/pdf/ES7134LV%20DS.pdf



This driver is also compatible with the es7144, which is the same as the
es7134, with 2 additional pins for filtering capacitors.

Signed-off-by: default avatarJerome Brunet <jbrunet@baylibre.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent c1ae3cfa

sound/soc/codecs/Kconfig

+4 −0
Original line number Diff line number Diff line
@@ -72,6 +72,7 @@ config SND_SOC_ALL_CODECS 
	select SND_SOC_DMIC

	select SND_SOC_ES8328_SPI if SPI_MASTER

	select SND_SOC_ES8328_I2C if I2C

	select SND_SOC_ES7134

	select SND_SOC_GTM601

	select SND_SOC_HDAC_HDMI

	select SND_SOC_ICS43432
@@ -525,6 +526,9 @@ config SND_SOC_HDMI_CODEC 
	select SND_PCM_IEC958

	select HDMI



config SND_SOC_ES7134

       tristate "Everest Semi ES7134 CODEC"



config SND_SOC_ES8328

	tristate

sound/soc/codecs/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -63,6 +63,7 @@ snd-soc-da7219-objs := da7219.o da7219-aad.o 
snd-soc-da732x-objs := da732x.o

snd-soc-da9055-objs := da9055.o

snd-soc-dmic-objs := dmic.o

snd-soc-es7134-objs := es7134.o

snd-soc-es8328-objs := es8328.o

snd-soc-es8328-i2c-objs := es8328-i2c.o

snd-soc-es8328-spi-objs := es8328-spi.o
@@ -293,6 +294,7 @@ obj-$(CONFIG_SND_SOC_DA7219) += snd-soc-da7219.o 
obj-$(CONFIG_SND_SOC_DA732X)	+= snd-soc-da732x.o

obj-$(CONFIG_SND_SOC_DA9055)	+= snd-soc-da9055.o

obj-$(CONFIG_SND_SOC_DMIC)	+= snd-soc-dmic.o

obj-$(CONFIG_SND_SOC_ES7134)	+= snd-soc-es7134.o

obj-$(CONFIG_SND_SOC_ES8328)	+= snd-soc-es8328.o

obj-$(CONFIG_SND_SOC_ES8328_I2C)+= snd-soc-es8328-i2c.o

obj-$(CONFIG_SND_SOC_ES8328_SPI)+= snd-soc-es8328-spi.o

sound/soc/codecs/es7134.c

0 → 100644
+116 −0
Original line number Diff line number Diff line 
/*

 * Copyright (c) 2017 BayLibre, SAS.

 * Author: Jerome Brunet <jbrunet@baylibre.com>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of version 2 of the GNU General Public License as

 * published by the Free Software Foundation.

 *

 * 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.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, see <http://www.gnu.org/licenses/>.

 * The full GNU General Public License is included in this distribution

 * in the file called COPYING.

 */



#include <linux/module.h>

#include <sound/soc.h>



/*

 * The everest 7134 is a very simple DA converter with no register

 */



static int es7134_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)

{

	fmt &= (SND_SOC_DAIFMT_FORMAT_MASK | SND_SOC_DAIFMT_INV_MASK |

		SND_SOC_DAIFMT_MASTER_MASK);



	if (fmt != (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |

		    SND_SOC_DAIFMT_CBS_CFS)) {

		dev_err(codec_dai->dev, "Invalid DAI format\n");

		return -EINVAL;

	}



	return 0;

}



static const struct snd_soc_dai_ops es7134_dai_ops = {

	.set_fmt	= es7134_set_fmt,

};



static struct snd_soc_dai_driver es7134_dai = {

	.name = "es7134-hifi",

	.playback = {

		.stream_name = "Playback",

		.channels_min = 2,

		.channels_max = 2,

		.rates = SNDRV_PCM_RATE_8000_192000,

		.formats = (SNDRV_PCM_FMTBIT_S16_LE  |

			    SNDRV_PCM_FMTBIT_S18_3LE |

			    SNDRV_PCM_FMTBIT_S20_3LE |

			    SNDRV_PCM_FMTBIT_S24_3LE |

			    SNDRV_PCM_FMTBIT_S24_LE),

	},

	.ops = &es7134_dai_ops,

};



static const struct snd_soc_dapm_widget es7134_dapm_widgets[] = {

	SND_SOC_DAPM_OUTPUT("AOUTL"),

	SND_SOC_DAPM_OUTPUT("AOUTR"),

	SND_SOC_DAPM_DAC("DAC", "Playback", SND_SOC_NOPM, 0, 0),

};



static const struct snd_soc_dapm_route es7134_dapm_routes[] = {

	{ "AOUTL", NULL, "DAC" },

	{ "AOUTR", NULL, "DAC" },

};



static struct snd_soc_codec_driver es7134_codec_driver = {

	.component_driver = {

		.dapm_widgets		= es7134_dapm_widgets,

		.num_dapm_widgets	= ARRAY_SIZE(es7134_dapm_widgets),

		.dapm_routes		= es7134_dapm_routes,

		.num_dapm_routes	= ARRAY_SIZE(es7134_dapm_routes),

	},

};



static int es7134_probe(struct platform_device *pdev)

{

	return snd_soc_register_codec(&pdev->dev,

				      &es7134_codec_driver,

				      &es7134_dai, 1);

}



static int es7134_remove(struct platform_device *pdev)

{

	snd_soc_unregister_codec(&pdev->dev);

	return 0;

}



#ifdef CONFIG_OF

static const struct of_device_id es7134_ids[] = {

	{ .compatible = "everest,es7134", },

	{ .compatible = "everest,es7144", },

	{ }

};

MODULE_DEVICE_TABLE(of, es7134_ids);

#endif



static struct platform_driver es7134_driver = {

	.driver = {

		.name = "es7134",

		.of_match_table = of_match_ptr(es7134_ids),

	},

	.probe = es7134_probe,

	.remove = es7134_remove,

};



module_platform_driver(es7134_driver);



MODULE_DESCRIPTION("ASoC ES7134 audio codec driver");

MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>");

MODULE_LICENSE("GPL");

CRA Git | Maintained and supported by SUSTech CRA and CCSE