diff --git a/sound/soc/fsl/Kconfig b/sound/soc/fsl/Kconfig index 5fb734fed126..b96947d6c026 100644 --- a/sound/soc/fsl/Kconfig +++ b/sound/soc/fsl/Kconfig @@ -588,6 +588,14 @@ config SND_SOC_IMX_CDNHDMI Say Y if you want to add support for SoC audio on an i.MX board with IMX CDN HDMI. +config SND_SOC_IMX_XCVR + tristate "SoC Audio support for i.MX boards with XCVR" + select SND_SOC_FSL_XCVR + help + SoC Audio support for i.MX boards with Audio Transceiver (XCVR) + Say Y if you want to add support for SoC audio on an i.MX board with + an Audio Transceiver (XCVR). + endif # SND_IMX_SOC endmenu diff --git a/sound/soc/fsl/Makefile b/sound/soc/fsl/Makefile index 9ea91cb2689b..cec61cc51fcc 100644 --- a/sound/soc/fsl/Makefile +++ b/sound/soc/fsl/Makefile @@ -102,6 +102,7 @@ snd-soc-imx-si476x-objs := imx-si476x.o snd-soc-imx-hdmi-objs := imx-hdmi.o snd-soc-imx-cdnhdmi-objs := imx-cdnhdmi.o snd-soc-imx-rpmsg-objs := imx-rpmsg.o +snd-soc-imx-xcvr-objs := imx-xcvr.o obj-$(CONFIG_SND_SOC_EUKREA_TLV320) += snd-soc-eukrea-tlv320.o obj-$(CONFIG_SND_SOC_PHYCORE_AC97) += snd-soc-phycore-ac97.o @@ -129,5 +130,6 @@ obj-$(CONFIG_SND_SOC_IMX_DSP) += snd-soc-imx-dsp.o obj-$(CONFIG_SND_SOC_IMX_SI476X) += snd-soc-imx-si476x.o obj-$(CONFIG_SND_SOC_IMX_HDMI) += snd-soc-imx-hdmi.o obj-$(CONFIG_SND_SOC_IMX_CDNHDMI) += snd-soc-imx-cdnhdmi.o +obj-$(CONFIG_SND_SOC_IMX_XCVR) += snd-soc-imx-xcvr.o AFLAGS_hdmi_pcm.o := -march=armv7-a -mtune=cortex-a9 -mfpu=neon -mfloat-abi=softfp diff --git a/sound/soc/fsl/imx-xcvr.c b/sound/soc/fsl/imx-xcvr.c new file mode 100644 index 000000000000..d7731bcadd85 --- /dev/null +++ b/sound/soc/fsl/imx-xcvr.c @@ -0,0 +1,101 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright 2019 NXP + +#include +#include +#include +#include "fsl_xcvr.h" + +struct imx_xcvr_data { + struct snd_soc_dai_link dai; + struct snd_soc_card card; +}; + +static int imx_xcvr_audio_probe(struct platform_device *pdev) +{ + struct device_node *xcvr_np, *np = pdev->dev.of_node; + struct snd_soc_dai_link_component *dlc; + struct snd_soc_dai *cpu_dai, *codec_dai; + struct imx_xcvr_data *data; + int ret = 0; + + xcvr_np = of_parse_phandle(np, "cpu-dai", 0); + if (!xcvr_np) { + dev_err(&pdev->dev, "failed to find cpu-dai\n"); + ret = -EINVAL; + goto end; + } + + data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); + if (!data) { + ret = -ENOMEM; + goto end; + } + + dlc = devm_kzalloc(&pdev->dev, 3 * sizeof(*dlc), GFP_KERNEL); + if (!dlc) { + ret = -ENOMEM; + goto end; + } + + data->dai.cpus = &dlc[0]; + data->dai.num_cpus = 1; + data->dai.platforms = &dlc[1]; + data->dai.num_platforms = 1; + data->dai.codecs = &dlc[2]; + data->dai.num_codecs = 1; + + data->dai.name = "XCVR PCM"; + data->dai.stream_name = "XCVR PCM"; + data->dai.codecs->dai_name = "snd-soc-dummy-dai"; + data->dai.codecs->name = "snd-soc-dummy"; + data->dai.cpus->of_node = xcvr_np; + data->dai.platforms->of_node = xcvr_np; + + data->card.dev = &pdev->dev; + data->card.dai_link = &data->dai; + data->card.num_links = 1; + data->card.owner = THIS_MODULE; + + cpu_dai = snd_soc_find_dai(data->dai.cpus); + codec_dai = snd_soc_find_dai(data->dai.codecs); + if (cpu_dai && codec_dai) { + codec_dai->driver->playback = cpu_dai->driver->playback; + codec_dai->driver->capture = cpu_dai->driver->capture; + } + + ret = snd_soc_of_parse_card_name(&data->card, "model"); + if (ret) + goto end; + + ret = devm_snd_soc_register_card(&pdev->dev, &data->card); + if (ret) { + dev_err(&pdev->dev, "snd_soc_register_card failed: %d\n", ret); + goto end; + } +end: + of_node_put(xcvr_np); + return ret; +} + +static const struct of_device_id imx_xcvr_dt_ids[] = { + { .compatible = "fsl,imx-audio-xcvr", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, imx_xcvr_dt_ids); + +static struct platform_driver imx_xcvr_driver = { + .driver = { + .name = "imx-xcvr", + .pm = &snd_soc_pm_ops, + .of_match_table = imx_xcvr_dt_ids, + }, + .probe = imx_xcvr_audio_probe, +}; + +module_platform_driver(imx_xcvr_driver); + +MODULE_AUTHOR("Viorel Suman "); +MODULE_DESCRIPTION("NXP Audio Transceiver (XCVR) machine driver"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:imx-xcvr");