This is driver for i.MX6 boards with tlv320aic3x audio codecs.
Signed-off-by: Dmitry Lavnikevich d.lavnikevich@sam-solutions.com --- .../bindings/sound/fsl,imx-audio-tlv320aic3x.txt | 27 ++++ sound/soc/fsl/Kconfig | 13 ++ sound/soc/fsl/Makefile | 2 + sound/soc/fsl/imx-tlv320aic3x.c | 177 +++++++++++++++++++++ 4 files changed, 219 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/fsl,imx-audio-tlv320aic3x.txt create mode 100644 sound/soc/fsl/imx-tlv320aic3x.c
diff --git a/Documentation/devicetree/bindings/sound/fsl,imx-audio-tlv320aic3x.txt b/Documentation/devicetree/bindings/sound/fsl,imx-audio-tlv320aic3x.txt new file mode 100644 index 000000000000..9e6c4443f40f --- /dev/null +++ b/Documentation/devicetree/bindings/sound/fsl,imx-audio-tlv320aic3x.txt @@ -0,0 +1,27 @@ +Audio complex for i.MX6 boards with tlv320aic3x audio codecs. + +Required properties: +- compatible : "fsl,imx-audio-tlv320aic3x" +- model : The user-visible name of this sound complex. +- ssi-controller : The phandle of the SSI controller. +- mux-int-port : The internal port of the i.MX audio muxer (AUDMUX). +- mux-ext-port : The external port of the i.MX audio muxer. + +Note: The AUDMUX port numbering should start at 1, which is consistent with +hardware manual. + +Example: + +sound { + compatible = "fsl,imx-audio-tlv320aic3x"; + model = "imx6q-phyflex-tlv320aic3007"; + ssi-controller = <&ssi2>; + audio-codec = <&codec>; + audio-routing = + "Line Out", "LLOUT", + "Line Out", "RLOUT", + "Headphone Jack", "HPLOUT", + "Headphone Jack", "HPROUT"; + mux-int-port = <2>; + mux-ext-port = <5>; +}; diff --git a/sound/soc/fsl/Kconfig b/sound/soc/fsl/Kconfig index f3012b645b51..b40884c244bd 100644 --- a/sound/soc/fsl/Kconfig +++ b/sound/soc/fsl/Kconfig @@ -268,6 +268,19 @@ config SND_SOC_IMX_MC13783 select SND_SOC_MC13783 select SND_SOC_IMX_PCM_DMA
+config SND_SOC_IMX_TLV320AIC3X + tristate "SoC Audio support for i.MX6 boards with tlv320aic3x audio codec" + depends on OF && I2C + select SND_SOC_TLV320AIC3X + select SND_SOC_IMX_PCM_DMA + select SND_SOC_IMX_AUDMUX + select SND_SOC_FSL_SSI + help + SoC audio for i.MX6 boards with codec TLV320AIC3x attached over + SSI interface. + Say Y if you want to add support for SoC audio on phyFLEX-i.MX6 + boards. + endif # SND_IMX_SOC
endmenu diff --git a/sound/soc/fsl/Makefile b/sound/soc/fsl/Makefile index 9ff59267eac9..83882bcefb0b 100644 --- a/sound/soc/fsl/Makefile +++ b/sound/soc/fsl/Makefile @@ -54,6 +54,7 @@ snd-soc-imx-sgtl5000-objs := imx-sgtl5000.o snd-soc-imx-wm8962-objs := imx-wm8962.o snd-soc-imx-spdif-objs := imx-spdif.o snd-soc-imx-mc13783-objs := imx-mc13783.o +snd-soc-imx-tlv320aic3x-objs := imx-tlv320aic3x.o
obj-$(CONFIG_SND_SOC_EUKREA_TLV320) += snd-soc-eukrea-tlv320.o obj-$(CONFIG_SND_SOC_PHYCORE_AC97) += snd-soc-phycore-ac97.o @@ -63,3 +64,4 @@ obj-$(CONFIG_SND_SOC_IMX_SGTL5000) += snd-soc-imx-sgtl5000.o obj-$(CONFIG_SND_SOC_IMX_WM8962) += snd-soc-imx-wm8962.o obj-$(CONFIG_SND_SOC_IMX_SPDIF) += snd-soc-imx-spdif.o obj-$(CONFIG_SND_SOC_IMX_MC13783) += snd-soc-imx-mc13783.o +obj-$(CONFIG_SND_SOC_IMX_TLV320AIC3X) += snd-soc-imx-tlv320aic3x.o diff --git a/sound/soc/fsl/imx-tlv320aic3x.c b/sound/soc/fsl/imx-tlv320aic3x.c new file mode 100644 index 000000000000..f38c68911953 --- /dev/null +++ b/sound/soc/fsl/imx-tlv320aic3x.c @@ -0,0 +1,177 @@ +/* + * Copyright 2014 Dmitry Lavnikevich, + * SaM Solutions d.lavnikevich@sam-solutions.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/i2c.h> +#include <linux/of.h> +#include <linux/of_platform.h> + +#include "../codecs/tlv320aic3x.h" +#include "imx-audmux.h" +#include "imx-ssi.h" + +#define CODEC_CLOCK 19200000 + + +/* machine dapm widgets */ +static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = { + SND_SOC_DAPM_LINE("Line Out", NULL), + SND_SOC_DAPM_LINE("Speaker", NULL), + SND_SOC_DAPM_HP("Headphone Jack", NULL), + SND_SOC_DAPM_MIC("Mic Jack", NULL), + SND_SOC_DAPM_LINE("Line In", NULL), +}; + +static int imx_audmux_config(int int_port, int ext_port) +{ + unsigned int ptcr, pdcr; + + int_port--; + ext_port--; + ptcr = IMX_AUDMUX_V2_PTCR_TFSDIR | + IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) | + IMX_AUDMUX_V2_PTCR_TCLKDIR | + IMX_AUDMUX_V2_PTCR_TCSEL(ext_port); + pdcr = IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port); + imx_audmux_v2_configure_port(int_port, ptcr, pdcr); + + ptcr = 0; + pdcr = IMX_AUDMUX_V2_PDCR_RXDSEL(int_port); + imx_audmux_v2_configure_port(ext_port, ptcr, pdcr); + + return 0; +} + +/* Logic for a aic3x as connected on a imx */ +static int imx_aic3x_init(struct snd_soc_pcm_runtime *rtd) +{ + int ret; + + ret = snd_soc_dai_set_sysclk(rtd->codec_dai, 0, CODEC_CLOCK, + SND_SOC_CLOCK_IN); + if (ret < 0) + return ret; + + return 0; +} + +static struct snd_soc_dai_link imx_tlv320_dai = { + .name = "HiFi", + .stream_name = "HiFi", + .codec_dai_name = "tlv320aic3x-hifi", + .init = &imx_aic3x_init, + .dai_fmt = SND_SOC_DAIFMT_I2S | + SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBM_CFM, +}; + +static struct snd_soc_card imx_tlv320_card = { + .num_links = 1, + .owner = THIS_MODULE, + .dai_link = &imx_tlv320_dai, + .dapm_widgets = aic3x_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(aic3x_dapm_widgets), +}; + +static int imx_tlv320_probe(struct platform_device *pdev) +{ + struct device_node *np = pdev->dev.of_node; + struct device_node *ssi_np, *codec_np; + struct platform_device *ssi_pdev; + struct i2c_client *codec_dev; + int int_port, ext_port; + int ret = 0; + + ret = of_property_read_u32(np, "mux-int-port", &int_port); + if (ret) { + dev_err(&pdev->dev, "mux-int-port missing or invalid\n"); + return ret; + } + ret = of_property_read_u32(np, "mux-ext-port", &ext_port); + if (ret) { + dev_err(&pdev->dev, "mux-ext-port missing or invalid\n"); + return ret; + } + + imx_audmux_config(int_port, ext_port); + + ssi_np = of_parse_phandle(pdev->dev.of_node, "ssi-controller", 0); + codec_np = of_parse_phandle(pdev->dev.of_node, "audio-codec", 0); + if (!ssi_np || !codec_np) { + dev_err(&pdev->dev, "phandle missing or invalid\n"); + ret = -EINVAL; + goto fail; + } + + ssi_pdev = of_find_device_by_node(ssi_np); + if (!ssi_pdev) { + dev_err(&pdev->dev, "failed to find SSI platform device\n"); + ret = -EPROBE_DEFER; + goto fail; + } + codec_dev = of_find_i2c_device_by_node(codec_np); + if (!codec_dev) { + dev_err(&pdev->dev, "failed to find codec platform device\n"); + return -EPROBE_DEFER; + } + + imx_tlv320_dai.codec_of_node = codec_np; + imx_tlv320_dai.cpu_of_node = ssi_np; + imx_tlv320_dai.platform_of_node = ssi_np; + + imx_tlv320_card.dev = &pdev->dev; + ret = snd_soc_of_parse_card_name(&imx_tlv320_card, "model"); + if (ret) + goto fail; + ret = snd_soc_of_parse_audio_routing(&imx_tlv320_card, "audio-routing"); + if (ret) + goto fail; + + platform_set_drvdata(pdev, &imx_tlv320_card); + + ret = devm_snd_soc_register_card(&pdev->dev, &imx_tlv320_card); + if (ret) { + dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret); + goto fail; + } + + of_node_put(ssi_np); + of_node_put(codec_np); + + return 0; + +fail: + if (ssi_np) + of_node_put(ssi_np); + if (codec_np) + of_node_put(codec_np); + + return ret; +} + +static const struct of_device_id imx_tlv320_dt_ids[] = { + { .compatible = "fsl,imx-audio-tlv320aic3x", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, imx_tlv320_dt_ids); + +static struct platform_driver imx_tlv320_driver = { + .driver = { + .name = "tlv320aic3x", + .owner = THIS_MODULE, + .pm = &snd_soc_pm_ops, + .of_match_table = imx_tlv320_dt_ids, + }, + .probe = imx_tlv320_probe, +}; +module_platform_driver(imx_tlv320_driver); + +MODULE_AUTHOR("Lavnikevich Dmitry"); +MODULE_DESCRIPTION("TLV320AIC3X i.MX6 ASoC driver"); +MODULE_LICENSE("GPL");