diff options
| -rw-r--r-- | Documentation/devicetree/bindings/sound/imx-audio-ak4497.txt | 27 | ||||
| -rw-r--r-- | sound/soc/fsl/Kconfig | 12 | ||||
| -rw-r--r-- | sound/soc/fsl/Makefile | 2 | ||||
| -rw-r--r-- | sound/soc/fsl/imx-ak4497.c | 168 |
4 files changed, 209 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/imx-audio-ak4497.txt b/Documentation/devicetree/bindings/sound/imx-audio-ak4497.txt new file mode 100644 index 000000000000..f93a03a26712 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/imx-audio-ak4497.txt @@ -0,0 +1,27 @@ +Freescale i.MX audio complex with AK4497 DAC + +Required properties: + +- compatible : "fsl,imx-audio-ak4497" +- model : The user-visible name of this sound complex +- audio-cpu : The phandle of CPU DAI +- audio-codec : The phandle of the ak4497 audio DAC +- audio-routing : A list of the connections between audio components. Each entry + is a pair of strings, the first being the connection's sink, the second being + the connection's source. Valid names could be power supplies, ak4497 pins, + and the jacks on the board. + +Example: + +sound { + compatible = "fsl,imx-audio-ak4497"; + model = "ak4497-audio"; + audio-cpu = <&sai3>; + audio-codec = <&codec>; + audio-routing = + "AOUTLN", "Playback", + "AOUTLP", "Playback", + "AOUTRN", "Playback", + "AOUTRP", "Playback", +}; + diff --git a/sound/soc/fsl/Kconfig b/sound/soc/fsl/Kconfig index 67962bf52a91..2c35466fb48f 100644 --- a/sound/soc/fsl/Kconfig +++ b/sound/soc/fsl/Kconfig @@ -273,6 +273,18 @@ config SND_SOC_IMX_AK5558 Say Y if you want to add support for SoC audio on an i.MX board with an AK5558 ADC. +config SND_SOC_IMX_AK4497 + tristate "SoC Audio support for i.MX boards with AK4497" + depends on OF && I2C + select SND_SOC_AK4497 + select SND_SOC_IMX_PCM_DMA + select SND_SOC_FSL_SAI + select SND_SOC_FSL_UTILS + help + SoC Audio support for i.MX boards with AK4497 + Say Y if you want to add support for SoC audio on an i.MX board with + an AK4497 DAC. + config SND_SOC_IMX_WM8960 tristate "SoC Audio support for i.MX boards with wm8960" depends on OF && I2C diff --git a/sound/soc/fsl/Makefile b/sound/soc/fsl/Makefile index 2a93054138c0..539eba9928f4 100644 --- a/sound/soc/fsl/Makefile +++ b/sound/soc/fsl/Makefile @@ -73,6 +73,7 @@ snd-soc-imx-mqs-objs := imx-mqs.o snd-soc-imx-pdm-objs := imx-pdm.o snd-soc-imx-ak4458-objs := imx-ak4458.o snd-soc-imx-ak5558-objs := imx-ak5558.o +snd-soc-imx-ak4497-objs := imx-ak4497.o obj-$(CONFIG_SND_SOC_EUKREA_TLV320) += snd-soc-eukrea-tlv320.o obj-$(CONFIG_SND_SOC_PHYCORE_AC97) += snd-soc-phycore-ac97.o @@ -93,3 +94,4 @@ obj-$(CONFIG_SND_SOC_IMX_MQS) += snd-soc-imx-mqs.o obj-$(CONFIG_SND_SOC_IMX_PDM_MIC) += snd-soc-imx-pdm.o obj-$(CONFIG_SND_SOC_IMX_AK4458) += snd-soc-imx-ak4458.o obj-$(CONFIG_SND_SOC_IMX_AK5558) += snd-soc-imx-ak5558.o +obj-$(CONFIG_SND_SOC_IMX_AK4497) += snd-soc-imx-ak4497.o diff --git a/sound/soc/fsl/imx-ak4497.c b/sound/soc/fsl/imx-ak4497.c new file mode 100644 index 000000000000..627f0574fe3b --- /dev/null +++ b/sound/soc/fsl/imx-ak4497.c @@ -0,0 +1,168 @@ +/* i.MX AK4458 audio support + * + * Copyright 2017 NXP + * + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/gpio/consumer.h> +#include <linux/of_device.h> +#include <sound/soc.h> +#include <sound/pcm_params.h> +#include <sound/soc-dapm.h> + +#include "../codecs/ak4497.h" + + +struct imx_ak4497_data { + struct snd_soc_card card; +}; + +static struct snd_soc_dapm_widget imx_ak4497_dapm_widgets[] = { + SND_SOC_DAPM_LINE("Line Out", NULL), +}; + +static int imx_aif_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + struct snd_soc_card *card = rtd->card; + struct device *dev = card->dev; + unsigned int channels = params_channels(params); + unsigned int fmt; + int ret; + + fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS; + + ret = snd_soc_dai_set_fmt(cpu_dai, fmt); + if (ret) { + dev_err(dev, "failed to set cpu dai fmt: %d\n", ret); + return ret; + } + + ret = snd_soc_dai_set_fmt(codec_dai, fmt); + if (ret) { + dev_err(dev, "failed to set codec dai fmt: %d\n", ret); + return ret; + } + + ret = snd_soc_dai_set_tdm_slot(cpu_dai, + BIT(channels) - 1, BIT(channels) - 1, + 2, 32); + if (ret) { + dev_err(dev, "failed to set cpu dai tdm slot: %d\n", ret); + return ret; + } + + return ret; +} + +static struct snd_soc_ops imx_aif_ops = { + .hw_params = imx_aif_hw_params, +}; + +static struct snd_soc_dai_link imx_ak4497_dai = { + .name = "ak4497", + .stream_name = "Audio", + .codec_dai_name = "ak4497-aif", + .ops = &imx_aif_ops, + .playback_only = 1, +}; + +static int imx_ak4497_probe(struct platform_device *pdev) +{ + struct imx_ak4497_data *priv; + struct device_node *cpu_np, *codec_np = NULL; + struct platform_device *cpu_pdev; + int ret; + + priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + cpu_np = of_parse_phandle(pdev->dev.of_node, "audio-cpu", 0); + if (!cpu_np) { + dev_err(&pdev->dev, "audio dai phandle missing or invalid\n"); + ret = -EINVAL; + goto fail; + } + + codec_np = of_parse_phandle(pdev->dev.of_node, "audio-codec", 0); + if (!codec_np) { + dev_err(&pdev->dev, "audio codec phandle missing or invalid\n"); + ret = -EINVAL; + goto fail; + } + + cpu_pdev = of_find_device_by_node(cpu_np); + if (!cpu_pdev) { + dev_err(&pdev->dev, "failed to find SAI platform device\n"); + ret = -EINVAL; + goto fail; + } + + imx_ak4497_dai.codec_of_node = codec_np; + imx_ak4497_dai.cpu_dai_name = dev_name(&cpu_pdev->dev); + imx_ak4497_dai.platform_of_node = cpu_np; + imx_ak4497_dai.playback_only = 1; + + priv->card.dai_link = &imx_ak4497_dai; + priv->card.num_links = 1; + priv->card.dev = &pdev->dev; + priv->card.owner = THIS_MODULE; + priv->card.dapm_widgets = imx_ak4497_dapm_widgets; + priv->card.num_dapm_widgets = ARRAY_SIZE(imx_ak4497_dapm_widgets); + + ret = snd_soc_of_parse_card_name(&priv->card, "model"); + if (ret) + goto fail; + + snd_soc_card_set_drvdata(&priv->card, priv); + + ret = devm_snd_soc_register_card(&pdev->dev, &priv->card); + if (ret) { + dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret); + goto fail; + } + + ret = 0; +fail: + if (cpu_np) + of_node_put(cpu_np); + if (codec_np) + of_node_put(codec_np); + + return ret; +} + +static const struct of_device_id imx_ak4497_dt_ids[] = { + { .compatible = "fsl,imx-audio-ak4497", }, + { }, +}; +MODULE_DEVICE_TABLE(of, imx_ak4497_dt_ids); + +static struct platform_driver imx_ak4497_driver = { + .driver = { + .name = "imx-ak4497", + .pm = &snd_soc_pm_ops, + .of_match_table = imx_ak4497_dt_ids, + }, + .probe = imx_ak4497_probe, +}; +module_platform_driver(imx_ak4497_driver); + +MODULE_AUTHOR("Daniel Baluta <daniel.baluta@nxp.com>"); +MODULE_DESCRIPTION("Freescale i.MX AK4497 ASoC machine driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:imx-ak4497"); |