MLK-15070-2: ASoC: fsl: Add machine driver for AK4497
This glues SAI interface with AK4497 DAC codec on i.MX boards. Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com> Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com> [ Aisheng: Makefile clean for a new base ] Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>5.4-rM2-2.2.x-imx-squashed
Daniel Baluta
Dong Aisheng
parent
a14c19c079
commit
493fff48cb
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@ -0,0 +1,27 @@
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Freescale i.MX audio complex with AK4497 DAC
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Required properties:
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- compatible : "fsl,imx-audio-ak4497"
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- model : The user-visible name of this sound complex
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- audio-cpu : The phandle of CPU DAI
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- audio-codec : The phandle of the ak4497 audio DAC
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- audio-routing : A list of the connections between audio components. Each entry
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is a pair of strings, the first being the connection's sink, the second being
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the connection's source. Valid names could be power supplies, ak4497 pins,
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and the jacks on the board.
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Example:
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sound {
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compatible = "fsl,imx-audio-ak4497";
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model = "ak4497-audio";
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audio-cpu = <&sai3>;
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audio-codec = <&codec>;
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audio-routing =
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"AOUTLN", "Playback",
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"AOUTLP", "Playback",
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"AOUTRN", "Playback",
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"AOUTRP", "Playback",
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};
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@ -273,6 +273,18 @@ config SND_SOC_IMX_AK5558
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Say Y if you want to add support for SoC audio on an i.MX board with
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an AK5558 ADC.
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config SND_SOC_IMX_AK4497
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tristate "SoC Audio support for i.MX boards with AK4497"
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depends on OF && I2C
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select SND_SOC_AK4497
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select SND_SOC_IMX_PCM_DMA
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select SND_SOC_FSL_SAI
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select SND_SOC_FSL_UTILS
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help
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SoC Audio support for i.MX boards with AK4497
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Say Y if you want to add support for SoC audio on an i.MX board with
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an AK4497 DAC.
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config SND_SOC_IMX_WM8960
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tristate "SoC Audio support for i.MX boards with wm8960"
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depends on OF && I2C
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@ -73,6 +73,7 @@ snd-soc-imx-mqs-objs := imx-mqs.o
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snd-soc-imx-pdm-objs := imx-pdm.o
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snd-soc-imx-ak4458-objs := imx-ak4458.o
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snd-soc-imx-ak5558-objs := imx-ak5558.o
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snd-soc-imx-ak4497-objs := imx-ak4497.o
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obj-$(CONFIG_SND_SOC_EUKREA_TLV320) += snd-soc-eukrea-tlv320.o
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obj-$(CONFIG_SND_SOC_PHYCORE_AC97) += snd-soc-phycore-ac97.o
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@ -93,3 +94,4 @@ obj-$(CONFIG_SND_SOC_IMX_MQS) += snd-soc-imx-mqs.o
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obj-$(CONFIG_SND_SOC_IMX_PDM_MIC) += snd-soc-imx-pdm.o
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obj-$(CONFIG_SND_SOC_IMX_AK4458) += snd-soc-imx-ak4458.o
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obj-$(CONFIG_SND_SOC_IMX_AK5558) += snd-soc-imx-ak5558.o
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obj-$(CONFIG_SND_SOC_IMX_AK4497) += snd-soc-imx-ak4497.o
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@ -0,0 +1,168 @@
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/* i.MX AK4458 audio support
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*
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* Copyright 2017 NXP
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*
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* The code contained herein is licensed under the GNU General Public
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* License. You may obtain a copy of the GNU General Public License
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* Version 2 or later at the following locations:
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*
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* http://www.opensource.org/licenses/gpl-license.html
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* http://www.gnu.org/copyleft/gpl.html
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*/
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/gpio/consumer.h>
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#include <linux/of_device.h>
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#include <sound/soc.h>
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#include <sound/pcm_params.h>
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#include <sound/soc-dapm.h>
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#include "../codecs/ak4497.h"
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struct imx_ak4497_data {
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struct snd_soc_card card;
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};
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static struct snd_soc_dapm_widget imx_ak4497_dapm_widgets[] = {
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SND_SOC_DAPM_LINE("Line Out", NULL),
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};
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static int imx_aif_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
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struct snd_soc_dai *codec_dai = rtd->codec_dai;
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struct snd_soc_card *card = rtd->card;
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struct device *dev = card->dev;
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unsigned int channels = params_channels(params);
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unsigned int fmt;
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int ret;
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fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBS_CFS;
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ret = snd_soc_dai_set_fmt(cpu_dai, fmt);
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if (ret) {
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dev_err(dev, "failed to set cpu dai fmt: %d\n", ret);
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return ret;
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}
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ret = snd_soc_dai_set_fmt(codec_dai, fmt);
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if (ret) {
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dev_err(dev, "failed to set codec dai fmt: %d\n", ret);
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return ret;
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}
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ret = snd_soc_dai_set_tdm_slot(cpu_dai,
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BIT(channels) - 1, BIT(channels) - 1,
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2, 32);
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if (ret) {
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dev_err(dev, "failed to set cpu dai tdm slot: %d\n", ret);
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return ret;
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}
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return ret;
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}
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static struct snd_soc_ops imx_aif_ops = {
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.hw_params = imx_aif_hw_params,
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};
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static struct snd_soc_dai_link imx_ak4497_dai = {
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.name = "ak4497",
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.stream_name = "Audio",
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.codec_dai_name = "ak4497-aif",
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.ops = &imx_aif_ops,
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.playback_only = 1,
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};
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static int imx_ak4497_probe(struct platform_device *pdev)
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{
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struct imx_ak4497_data *priv;
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struct device_node *cpu_np, *codec_np = NULL;
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struct platform_device *cpu_pdev;
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int ret;
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priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
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if (!priv)
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return -ENOMEM;
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cpu_np = of_parse_phandle(pdev->dev.of_node, "audio-cpu", 0);
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if (!cpu_np) {
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dev_err(&pdev->dev, "audio dai phandle missing or invalid\n");
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ret = -EINVAL;
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goto fail;
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}
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codec_np = of_parse_phandle(pdev->dev.of_node, "audio-codec", 0);
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if (!codec_np) {
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dev_err(&pdev->dev, "audio codec phandle missing or invalid\n");
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ret = -EINVAL;
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goto fail;
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}
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cpu_pdev = of_find_device_by_node(cpu_np);
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if (!cpu_pdev) {
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dev_err(&pdev->dev, "failed to find SAI platform device\n");
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ret = -EINVAL;
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goto fail;
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}
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imx_ak4497_dai.codec_of_node = codec_np;
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imx_ak4497_dai.cpu_dai_name = dev_name(&cpu_pdev->dev);
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imx_ak4497_dai.platform_of_node = cpu_np;
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imx_ak4497_dai.playback_only = 1;
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priv->card.dai_link = &imx_ak4497_dai;
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priv->card.num_links = 1;
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priv->card.dev = &pdev->dev;
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priv->card.owner = THIS_MODULE;
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priv->card.dapm_widgets = imx_ak4497_dapm_widgets;
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priv->card.num_dapm_widgets = ARRAY_SIZE(imx_ak4497_dapm_widgets);
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ret = snd_soc_of_parse_card_name(&priv->card, "model");
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if (ret)
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goto fail;
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snd_soc_card_set_drvdata(&priv->card, priv);
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ret = devm_snd_soc_register_card(&pdev->dev, &priv->card);
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if (ret) {
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dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
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goto fail;
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}
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ret = 0;
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fail:
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if (cpu_np)
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of_node_put(cpu_np);
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if (codec_np)
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of_node_put(codec_np);
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return ret;
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}
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static const struct of_device_id imx_ak4497_dt_ids[] = {
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{ .compatible = "fsl,imx-audio-ak4497", },
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{ },
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};
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MODULE_DEVICE_TABLE(of, imx_ak4497_dt_ids);
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static struct platform_driver imx_ak4497_driver = {
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.driver = {
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.name = "imx-ak4497",
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.pm = &snd_soc_pm_ops,
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.of_match_table = imx_ak4497_dt_ids,
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},
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.probe = imx_ak4497_probe,
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};
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module_platform_driver(imx_ak4497_driver);
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MODULE_AUTHOR("Daniel Baluta <daniel.baluta@nxp.com>");
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MODULE_DESCRIPTION("Freescale i.MX AK4497 ASoC machine driver");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("platform:imx-ak4497");
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