Loading Documentation/devicetree/bindings/sound/ak5386.txt 0 → 100644 +19 −0 Original line number Diff line number Diff line AK5386 Single-ended 24-Bit 192kHz delta-sigma ADC This device has no control interface. Required properties: - compatible : "asahi-kasei,ak5386" Optional properties: - reset-gpio : a GPIO spec for the reset/power down pin. If specified, it will be deasserted at probe time. Example: spdif: ak5386@0 { compatible = "asahi-kasei,ak5386"; reset-gpio = <&gpio0 23>; }; sound/soc/codecs/Kconfig +4 −0 Original line number Diff line number Diff line Loading @@ -26,6 +26,7 @@ config SND_SOC_ALL_CODECS select SND_SOC_AK4641 if I2C select SND_SOC_AK4642 if I2C select SND_SOC_AK4671 if I2C select SND_SOC_AK5386 select SND_SOC_ALC5623 if I2C select SND_SOC_ALC5632 if I2C select SND_SOC_CQ0093VC if MFD_DAVINCI_VOICECODEC Loading Loading @@ -203,6 +204,9 @@ config SND_SOC_AK4642 config SND_SOC_AK4671 tristate config SND_SOC_AK5386 tristate config SND_SOC_ALC5623 tristate config SND_SOC_ALC5632 Loading sound/soc/codecs/Makefile +2 −0 Original line number Diff line number Diff line Loading @@ -14,6 +14,7 @@ snd-soc-ak4535-objs := ak4535.o snd-soc-ak4641-objs := ak4641.o snd-soc-ak4642-objs := ak4642.o snd-soc-ak4671-objs := ak4671.o snd-soc-ak5386-objs := ak5386.o snd-soc-arizona-objs := arizona.o snd-soc-cq93vc-objs := cq93vc.o snd-soc-cs42l51-objs := cs42l51.o Loading Loading @@ -137,6 +138,7 @@ obj-$(CONFIG_SND_SOC_AK4535) += snd-soc-ak4535.o obj-$(CONFIG_SND_SOC_AK4641) += snd-soc-ak4641.o obj-$(CONFIG_SND_SOC_AK4642) += snd-soc-ak4642.o obj-$(CONFIG_SND_SOC_AK4671) += snd-soc-ak4671.o obj-$(CONFIG_SND_SOC_AK5386) += snd-soc-ak5386.o obj-$(CONFIG_SND_SOC_ALC5623) += snd-soc-alc5623.o obj-$(CONFIG_SND_SOC_ALC5632) += snd-soc-alc5632.o obj-$(CONFIG_SND_SOC_ARIZONA) += snd-soc-arizona.o Loading sound/soc/codecs/ak5386.c 0 → 100644 +152 −0 Original line number Diff line number Diff line /* * ALSA SoC driver for * Asahi Kasei AK5386 Single-ended 24-Bit 192kHz delta-sigma ADC * * (c) 2013 Daniel Mack <zonque@gmail.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include <linux/module.h> #include <linux/slab.h> #include <linux/of.h> #include <linux/of_gpio.h> #include <linux/of_device.h> #include <sound/soc.h> #include <sound/pcm.h> #include <sound/initval.h> struct ak5386_priv { int reset_gpio; }; static struct snd_soc_codec_driver soc_codec_ak5386; static int ak5386_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int format) { struct snd_soc_codec *codec = codec_dai->codec; format &= SND_SOC_DAIFMT_FORMAT_MASK; if (format != SND_SOC_DAIFMT_LEFT_J && format != SND_SOC_DAIFMT_I2S) { dev_err(codec->dev, "Invalid DAI format\n"); return -EINVAL; } return 0; } static int ak5386_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { struct snd_soc_codec *codec = dai->codec; struct ak5386_priv *priv = snd_soc_codec_get_drvdata(codec); /* * From the datasheet: * * All external clocks (MCLK, SCLK and LRCK) must be present unless * PDN pin = “L”. If these clocks are not provided, the AK5386 may * draw excess current due to its use of internal dynamically * refreshed logic. If the external clocks are not present, place * the AK5386 in power-down mode (PDN pin = “L”). */ if (gpio_is_valid(priv->reset_gpio)) gpio_set_value(priv->reset_gpio, 1); return 0; } static int ak5386_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct snd_soc_codec *codec = dai->codec; struct ak5386_priv *priv = snd_soc_codec_get_drvdata(codec); if (gpio_is_valid(priv->reset_gpio)) gpio_set_value(priv->reset_gpio, 0); return 0; } static const struct snd_soc_dai_ops ak5386_dai_ops = { .set_fmt = ak5386_set_dai_fmt, .hw_params = ak5386_hw_params, .hw_free = ak5386_hw_free, }; static struct snd_soc_dai_driver ak5386_dai = { .name = "ak5386-hifi", .capture = { .stream_name = "Capture", .channels_min = 1, .channels_max = 2, .rates = SNDRV_PCM_RATE_8000_192000, .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_3LE, }, .ops = &ak5386_dai_ops, }; #ifdef CONFIG_OF static const struct of_device_id ak5386_dt_ids[] = { { .compatible = "asahi-kasei,ak5386", }, { } }; MODULE_DEVICE_TABLE(of, ak5386_dt_ids); #endif static int ak5386_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct ak5386_priv *priv; priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; priv->reset_gpio = -EINVAL; dev_set_drvdata(dev, priv); if (of_match_device(of_match_ptr(ak5386_dt_ids), dev)) priv->reset_gpio = of_get_named_gpio(dev->of_node, "reset-gpio", 0); if (gpio_is_valid(priv->reset_gpio)) if (devm_gpio_request_one(dev, priv->reset_gpio, GPIOF_OUT_INIT_LOW, "AK5386 Reset")) priv->reset_gpio = -EINVAL; return snd_soc_register_codec(dev, &soc_codec_ak5386, &ak5386_dai, 1); } static int ak5386_remove(struct platform_device *pdev) { snd_soc_unregister_codec(&pdev->dev); return 0; } static struct platform_driver ak5386_driver = { .probe = ak5386_probe, .remove = ak5386_remove, .driver = { .name = "ak5386", .owner = THIS_MODULE, .of_match_table = of_match_ptr(ak5386_dt_ids), }, }; module_platform_driver(ak5386_driver); MODULE_DESCRIPTION("ASoC driver for AK5386 ADC"); MODULE_AUTHOR("Daniel Mack <zonque@gmail.com>"); MODULE_LICENSE("GPL"); Loading
Documentation/devicetree/bindings/sound/ak5386.txt 0 → 100644 +19 −0 Original line number Diff line number Diff line AK5386 Single-ended 24-Bit 192kHz delta-sigma ADC This device has no control interface. Required properties: - compatible : "asahi-kasei,ak5386" Optional properties: - reset-gpio : a GPIO spec for the reset/power down pin. If specified, it will be deasserted at probe time. Example: spdif: ak5386@0 { compatible = "asahi-kasei,ak5386"; reset-gpio = <&gpio0 23>; };
sound/soc/codecs/Kconfig +4 −0 Original line number Diff line number Diff line Loading @@ -26,6 +26,7 @@ config SND_SOC_ALL_CODECS select SND_SOC_AK4641 if I2C select SND_SOC_AK4642 if I2C select SND_SOC_AK4671 if I2C select SND_SOC_AK5386 select SND_SOC_ALC5623 if I2C select SND_SOC_ALC5632 if I2C select SND_SOC_CQ0093VC if MFD_DAVINCI_VOICECODEC Loading Loading @@ -203,6 +204,9 @@ config SND_SOC_AK4642 config SND_SOC_AK4671 tristate config SND_SOC_AK5386 tristate config SND_SOC_ALC5623 tristate config SND_SOC_ALC5632 Loading
sound/soc/codecs/Makefile +2 −0 Original line number Diff line number Diff line Loading @@ -14,6 +14,7 @@ snd-soc-ak4535-objs := ak4535.o snd-soc-ak4641-objs := ak4641.o snd-soc-ak4642-objs := ak4642.o snd-soc-ak4671-objs := ak4671.o snd-soc-ak5386-objs := ak5386.o snd-soc-arizona-objs := arizona.o snd-soc-cq93vc-objs := cq93vc.o snd-soc-cs42l51-objs := cs42l51.o Loading Loading @@ -137,6 +138,7 @@ obj-$(CONFIG_SND_SOC_AK4535) += snd-soc-ak4535.o obj-$(CONFIG_SND_SOC_AK4641) += snd-soc-ak4641.o obj-$(CONFIG_SND_SOC_AK4642) += snd-soc-ak4642.o obj-$(CONFIG_SND_SOC_AK4671) += snd-soc-ak4671.o obj-$(CONFIG_SND_SOC_AK5386) += snd-soc-ak5386.o obj-$(CONFIG_SND_SOC_ALC5623) += snd-soc-alc5623.o obj-$(CONFIG_SND_SOC_ALC5632) += snd-soc-alc5632.o obj-$(CONFIG_SND_SOC_ARIZONA) += snd-soc-arizona.o Loading
sound/soc/codecs/ak5386.c 0 → 100644 +152 −0 Original line number Diff line number Diff line /* * ALSA SoC driver for * Asahi Kasei AK5386 Single-ended 24-Bit 192kHz delta-sigma ADC * * (c) 2013 Daniel Mack <zonque@gmail.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include <linux/module.h> #include <linux/slab.h> #include <linux/of.h> #include <linux/of_gpio.h> #include <linux/of_device.h> #include <sound/soc.h> #include <sound/pcm.h> #include <sound/initval.h> struct ak5386_priv { int reset_gpio; }; static struct snd_soc_codec_driver soc_codec_ak5386; static int ak5386_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int format) { struct snd_soc_codec *codec = codec_dai->codec; format &= SND_SOC_DAIFMT_FORMAT_MASK; if (format != SND_SOC_DAIFMT_LEFT_J && format != SND_SOC_DAIFMT_I2S) { dev_err(codec->dev, "Invalid DAI format\n"); return -EINVAL; } return 0; } static int ak5386_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { struct snd_soc_codec *codec = dai->codec; struct ak5386_priv *priv = snd_soc_codec_get_drvdata(codec); /* * From the datasheet: * * All external clocks (MCLK, SCLK and LRCK) must be present unless * PDN pin = “L”. If these clocks are not provided, the AK5386 may * draw excess current due to its use of internal dynamically * refreshed logic. If the external clocks are not present, place * the AK5386 in power-down mode (PDN pin = “L”). */ if (gpio_is_valid(priv->reset_gpio)) gpio_set_value(priv->reset_gpio, 1); return 0; } static int ak5386_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct snd_soc_codec *codec = dai->codec; struct ak5386_priv *priv = snd_soc_codec_get_drvdata(codec); if (gpio_is_valid(priv->reset_gpio)) gpio_set_value(priv->reset_gpio, 0); return 0; } static const struct snd_soc_dai_ops ak5386_dai_ops = { .set_fmt = ak5386_set_dai_fmt, .hw_params = ak5386_hw_params, .hw_free = ak5386_hw_free, }; static struct snd_soc_dai_driver ak5386_dai = { .name = "ak5386-hifi", .capture = { .stream_name = "Capture", .channels_min = 1, .channels_max = 2, .rates = SNDRV_PCM_RATE_8000_192000, .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_3LE, }, .ops = &ak5386_dai_ops, }; #ifdef CONFIG_OF static const struct of_device_id ak5386_dt_ids[] = { { .compatible = "asahi-kasei,ak5386", }, { } }; MODULE_DEVICE_TABLE(of, ak5386_dt_ids); #endif static int ak5386_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct ak5386_priv *priv; priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; priv->reset_gpio = -EINVAL; dev_set_drvdata(dev, priv); if (of_match_device(of_match_ptr(ak5386_dt_ids), dev)) priv->reset_gpio = of_get_named_gpio(dev->of_node, "reset-gpio", 0); if (gpio_is_valid(priv->reset_gpio)) if (devm_gpio_request_one(dev, priv->reset_gpio, GPIOF_OUT_INIT_LOW, "AK5386 Reset")) priv->reset_gpio = -EINVAL; return snd_soc_register_codec(dev, &soc_codec_ak5386, &ak5386_dai, 1); } static int ak5386_remove(struct platform_device *pdev) { snd_soc_unregister_codec(&pdev->dev); return 0; } static struct platform_driver ak5386_driver = { .probe = ak5386_probe, .remove = ak5386_remove, .driver = { .name = "ak5386", .owner = THIS_MODULE, .of_match_table = of_match_ptr(ak5386_dt_ids), }, }; module_platform_driver(ak5386_driver); MODULE_DESCRIPTION("ASoC driver for AK5386 ADC"); MODULE_AUTHOR("Daniel Mack <zonque@gmail.com>"); MODULE_LICENSE("GPL");
