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MLK-13904-3: ASoC: fsl: add audio machine driver base on rpmsg
Add machine driver, which is using the dummy codec. Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com> Acked-by: Robin Gong <yibin.gong@nxp.com> [ Aisheng: clean for a new base ] Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
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13
Documentation/devicetree/bindings/sound/imx-audio-rpmsg.txt
Normal file
13
Documentation/devicetree/bindings/sound/imx-audio-rpmsg.txt
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@ -0,0 +1,13 @@
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Freescale i.MX audio complex with rpmsg devices
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Required properties:
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- compatible : "fsl,imx-audio-rpmsg"
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- model : The user-visible name of this sound complex
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- cpu-dai : The phandle of the i.MX rpmsg i2s device.
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Example:
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sound-rpmsg {
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compatible = "fsl,imx-audio-rpmsg";
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model = "rpmsg-audio";
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cpu-dai = <&rpmsg_i2s>;
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};
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@ -263,6 +263,17 @@ config SND_SOC_EUKREA_TLV320
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Enable I2S based access to the TLV320AIC23B codec attached
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to the SSI interface
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config SND_SOC_IMX_RPMSG
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tristate "SoC Audio support for i.MX boards with rpmsg"
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depends on OF && I2C && INPUT
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select SND_SOC_IMX_PCM_RPMSG
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select SND_SOC_FSL_RPMSG_I2S
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help
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SoC Audio support for i.MX boards with rpmsg.
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There should be rpmsg devices defined in other core
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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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a rpmsg devices.
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config SND_SOC_IMX_ES8328
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tristate "SoC Audio support for i.MX boards with the ES8328 codec"
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depends on OF && (I2C || SPI)
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@ -66,6 +66,7 @@ snd-soc-imx-sgtl5000-objs := imx-sgtl5000.o
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snd-soc-imx-spdif-objs := imx-spdif.o
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snd-soc-imx-mc13783-objs := imx-mc13783.o
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snd-soc-imx-audmix-objs := imx-audmix.o
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snd-soc-imx-rpmsg-objs := imx-rpmsg.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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@ -73,6 +74,7 @@ obj-$(CONFIG_SND_SOC_MX27VIS_AIC32X4) += snd-soc-mx27vis-aic32x4.o
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obj-$(CONFIG_SND_MXC_SOC_WM1133_EV1) += snd-soc-wm1133-ev1.o
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obj-$(CONFIG_SND_SOC_IMX_ES8328) += snd-soc-imx-es8328.o
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obj-$(CONFIG_SND_SOC_IMX_SGTL5000) += snd-soc-imx-sgtl5000.o
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obj-$(CONFIG_SND_SOC_IMX_RPMSG) += snd-soc-imx-rpmsg.o
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obj-$(CONFIG_SND_SOC_IMX_SPDIF) += snd-soc-imx-spdif.o
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obj-$(CONFIG_SND_SOC_IMX_MC13783) += snd-soc-imx-mc13783.o
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obj-$(CONFIG_SND_SOC_IMX_AUDMIX) += snd-soc-imx-audmix.o
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113
sound/soc/fsl/imx-rpmsg.c
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113
sound/soc/fsl/imx-rpmsg.c
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/*
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* Copyright (C) 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/of_platform.h>
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#include <linux/i2c.h>
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#include <linux/of_gpio.h>
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#include <linux/slab.h>
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#include <linux/gpio.h>
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#include <linux/clk.h>
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#include <sound/soc.h>
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#include <sound/jack.h>
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#include <sound/control.h>
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#include <sound/pcm_params.h>
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#include <sound/soc-dapm.h>
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#include <linux/pinctrl/consumer.h>
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#include "fsl_rpmsg_i2s.h"
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struct imx_rpmsg_data {
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struct snd_soc_dai_link dai[1];
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struct snd_soc_card card;
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};
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static int imx_rpmsg_probe(struct platform_device *pdev)
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{
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struct device_node *cpu_np;
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struct platform_device *cpu_pdev;
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struct imx_rpmsg_data *data;
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int ret;
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cpu_np = of_parse_phandle(pdev->dev.of_node, "cpu-dai", 0);
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if (!cpu_np) {
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dev_err(&pdev->dev, "cpu 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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data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
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if (!data) {
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ret = -ENOMEM;
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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 rpmsg platform device\n");
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ret = -EINVAL;
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goto fail;
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}
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data->dai[0].name = "rpmsg hifi";
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data->dai[0].stream_name = "rpmsg hifi";
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data->dai[0].codec_dai_name = "snd-soc-dummy-dai";
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data->dai[0].codec_name = "snd-soc-dummy";
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data->dai[0].cpu_dai_name = dev_name(&cpu_pdev->dev);
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data->dai[0].platform_of_node = cpu_np;
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data->dai[0].playback_only = false;
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data->dai[0].capture_only = false;
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data->dai[0].dai_fmt = SND_SOC_DAIFMT_I2S |
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SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBM_CFM;
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data->card.num_links = 1;
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data->card.dai_link = data->dai;
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data->card.dev = &pdev->dev;
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data->card.owner = THIS_MODULE;
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ret = snd_soc_of_parse_card_name(&data->card, "model");
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if (ret)
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goto fail;
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platform_set_drvdata(pdev, &data->card);
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snd_soc_card_set_drvdata(&data->card, data);
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ret = devm_snd_soc_register_card(&pdev->dev, &data->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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fail:
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if (cpu_np)
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of_node_put(cpu_np);
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return ret;
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}
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static const struct of_device_id imx_rpmsg_dt_ids[] = {
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{ .compatible = "fsl,imx-audio-rpmsg", },
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{ /* sentinel */ }
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};
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MODULE_DEVICE_TABLE(of, imx_rpmsg_dt_ids);
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static struct platform_driver imx_rpmsg_driver = {
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.driver = {
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.name = "imx-audio-rpmsg",
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.owner = THIS_MODULE,
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.pm = &snd_soc_pm_ops,
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.of_match_table = imx_rpmsg_dt_ids,
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},
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.probe = imx_rpmsg_probe,
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};
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module_platform_driver(imx_rpmsg_driver);
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MODULE_AUTHOR("Freescale Semiconductor, Inc.");
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MODULE_DESCRIPTION("Freescale i.MX rpmsg audio ASoC machine driver");
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MODULE_LICENSE("GPL v2");
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MODULE_ALIAS("platform:imx-rpmsg");
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