From patchwork Fri Mar 12 02:38:45 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shengjiu Wang X-Patchwork-Id: 1451675 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=2404:9400:2:0:216:3eff:fee1:b9f1; helo=lists.ozlabs.org; envelope-from=linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org; receiver=) Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2404:9400:2:0:216:3eff:fee1:b9f1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4DxVnC0tP7z9sSC for ; Fri, 12 Mar 2021 13:55:58 +1100 (AEDT) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4DxVn95xSrz3dnX for ; Fri, 12 Mar 2021 13:55:57 +1100 (AEDT) X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nxp.com (client-ip=92.121.34.13; helo=inva020.nxp.com; envelope-from=shengjiu.wang@nxp.com; receiver=) Received: from inva020.nxp.com (inva020.nxp.com [92.121.34.13]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4DxVlC36KMz3cW7 for ; Fri, 12 Mar 2021 13:54:15 +1100 (AEDT) Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id CA98B1A04FA; Fri, 12 Mar 2021 03:54:12 +0100 (CET) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id EFA5E1A04E7; Fri, 12 Mar 2021 03:54:05 +0100 (CET) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id 1CE4C402E9; Fri, 12 Mar 2021 03:53:54 +0100 (CET) From: Shengjiu Wang To: lgirdwood@gmail.com, broonie@kernel.org, perex@perex.cz, tiwai@suse.com, alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, timur@kernel.org, nicoleotsuka@gmail.com, Xiubo.Lee@gmail.com, festevam@gmail.com, linuxppc-dev@lists.ozlabs.org, robh+dt@kernel.org, devicetree@vger.kernel.org Subject: [PATCH v5 6/6] ASoC: imx-rpmsg: Add machine driver for audio base on rpmsg Date: Fri, 12 Mar 2021 10:38:45 +0800 Message-Id: <1615516725-4975-7-git-send-email-shengjiu.wang@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1615516725-4975-1-git-send-email-shengjiu.wang@nxp.com> References: <1615516725-4975-1-git-send-email-shengjiu.wang@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" The platform device is not registered by device tree or cpu dai driver, it is registered by the rpmsg channel, So add a dedicated machine driver to handle this case. Signed-off-by: Shengjiu Wang --- sound/soc/fsl/Kconfig | 11 +++ sound/soc/fsl/Makefile | 2 + sound/soc/fsl/imx-rpmsg.c | 150 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 163 insertions(+) create mode 100644 sound/soc/fsl/imx-rpmsg.c diff --git a/sound/soc/fsl/Kconfig b/sound/soc/fsl/Kconfig index 3d3d14f3793e..c71c6024320b 100644 --- a/sound/soc/fsl/Kconfig +++ b/sound/soc/fsl/Kconfig @@ -337,6 +337,17 @@ config SND_SOC_IMX_HDMI Say Y if you want to add support for SoC audio on an i.MX board with IMX HDMI. +config SND_SOC_IMX_RPMSG + tristate "SoC Audio support for i.MX boards with rpmsg" + depends on RPMSG + select SND_SOC_IMX_PCM_RPMSG + select SND_SOC_IMX_AUDIO_RPMSG + help + SoC Audio support for i.MX boards with rpmsg. + There should be rpmsg devices defined in other core (M core) + Say Y if you want to add support for SoC audio on an i.MX board with + a rpmsg devices. + endif # SND_IMX_SOC endmenu diff --git a/sound/soc/fsl/Makefile b/sound/soc/fsl/Makefile index ce4f4324c3a2..f146ce464acd 100644 --- a/sound/soc/fsl/Makefile +++ b/sound/soc/fsl/Makefile @@ -70,6 +70,7 @@ snd-soc-imx-sgtl5000-objs := imx-sgtl5000.o snd-soc-imx-spdif-objs := imx-spdif.o snd-soc-imx-audmix-objs := imx-audmix.o snd-soc-imx-hdmi-objs := imx-hdmi.o +snd-soc-imx-rpmsg-objs := imx-rpmsg.o obj-$(CONFIG_SND_SOC_EUKREA_TLV320) += snd-soc-eukrea-tlv320.o obj-$(CONFIG_SND_SOC_IMX_ES8328) += snd-soc-imx-es8328.o @@ -77,3 +78,4 @@ obj-$(CONFIG_SND_SOC_IMX_SGTL5000) += snd-soc-imx-sgtl5000.o obj-$(CONFIG_SND_SOC_IMX_SPDIF) += snd-soc-imx-spdif.o obj-$(CONFIG_SND_SOC_IMX_AUDMIX) += snd-soc-imx-audmix.o obj-$(CONFIG_SND_SOC_IMX_HDMI) += snd-soc-imx-hdmi.o +obj-$(CONFIG_SND_SOC_IMX_RPMSG) += snd-soc-imx-rpmsg.o diff --git a/sound/soc/fsl/imx-rpmsg.c b/sound/soc/fsl/imx-rpmsg.c new file mode 100644 index 000000000000..5a9a470d203f --- /dev/null +++ b/sound/soc/fsl/imx-rpmsg.c @@ -0,0 +1,150 @@ +// SPDX-License-Identifier: GPL-2.0+ +// Copyright 2017-2020 NXP + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "imx-pcm-rpmsg.h" + +struct imx_rpmsg { + struct snd_soc_dai_link dai; + struct snd_soc_card card; +}; + +static const struct snd_soc_dapm_widget imx_rpmsg_dapm_widgets[] = { + SND_SOC_DAPM_HP("Headphone Jack", NULL), + SND_SOC_DAPM_SPK("Ext Spk", NULL), + SND_SOC_DAPM_MIC("Mic Jack", NULL), + SND_SOC_DAPM_MIC("Main MIC", NULL), +}; + +static int imx_rpmsg_probe(struct platform_device *pdev) +{ + struct snd_soc_dai_link_component *dlc; + struct device *dev = pdev->dev.parent; + /* rpmsg_pdev is the platform device for the rpmsg node that probed us */ + struct platform_device *rpmsg_pdev = to_platform_device(dev); + struct device_node *np = rpmsg_pdev->dev.of_node; + struct of_phandle_args args; + struct imx_rpmsg *data; + int ret = 0; + + dlc = devm_kzalloc(&pdev->dev, 3 * sizeof(*dlc), GFP_KERNEL); + if (!dlc) + return -ENOMEM; + + data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); + if (!data) { + ret = -ENOMEM; + goto fail; + } + + ret = of_reserved_mem_device_init_by_idx(&pdev->dev, np, 0); + if (ret) + dev_warn(&pdev->dev, "no reserved DMA memory\n"); + + 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 = "rpmsg hifi"; + data->dai.stream_name = "rpmsg hifi"; + data->dai.dai_fmt = SND_SOC_DAIFMT_I2S | + SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS; + + /* Optional codec node */ + ret = of_parse_phandle_with_fixed_args(np, "audio-codec", 0, 0, &args); + if (ret) { + data->dai.codecs->dai_name = "snd-soc-dummy-dai"; + data->dai.codecs->name = "snd-soc-dummy"; + } else { + data->dai.codecs->of_node = args.np; + ret = snd_soc_get_dai_name(&args, &data->dai.codecs->dai_name); + if (ret) { + dev_err(&pdev->dev, "Unable to get codec_dai_name\n"); + goto fail; + } + } + + data->dai.cpus->dai_name = dev_name(&rpmsg_pdev->dev); + data->dai.platforms->name = IMX_PCM_DRV_NAME; + data->dai.playback_only = true; + data->dai.capture_only = true; + data->card.num_links = 1; + data->card.dai_link = &data->dai; + + if (of_property_read_bool(np, "fsl,rpmsg-out")) + data->dai.capture_only = false; + + if (of_property_read_bool(np, "fsl,rpmsg-in")) + data->dai.playback_only = false; + + if (data->dai.playback_only && data->dai.capture_only) { + dev_err(&pdev->dev, "no enabled rpmsg DAI link\n"); + ret = -EINVAL; + goto fail; + } + + data->card.dev = &pdev->dev; + data->card.owner = THIS_MODULE; + data->card.dapm_widgets = imx_rpmsg_dapm_widgets; + data->card.num_dapm_widgets = ARRAY_SIZE(imx_rpmsg_dapm_widgets); + /* + * Inoder to use common api to get card name and audio routing. + * Use parent of_node for this device, revert it after finishing using + */ + data->card.dev->of_node = np; + + ret = snd_soc_of_parse_card_name(&data->card, "model"); + if (ret) + goto fail; + + if (of_property_read_bool(np, "audio-routing")) { + ret = snd_soc_of_parse_audio_routing(&data->card, "audio-routing"); + if (ret) { + dev_err(&pdev->dev, "failed to parse audio-routing: %d\n", ret); + goto fail; + } + } + + platform_set_drvdata(pdev, &data->card); + snd_soc_card_set_drvdata(&data->card, data); + 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 fail; + } + +fail: + pdev->dev.of_node = NULL; + return ret; +} + +static struct platform_driver imx_rpmsg_driver = { + .driver = { + .name = "imx-audio-rpmsg", + .owner = THIS_MODULE, + .pm = &snd_soc_pm_ops, + }, + .probe = imx_rpmsg_probe, +}; +module_platform_driver(imx_rpmsg_driver); + +MODULE_DESCRIPTION("Freescale SoC Audio RPMSG Machine Driver"); +MODULE_AUTHOR("Shengjiu Wang "); +MODULE_ALIAS("platform:imx-audio-rpmsg"); +MODULE_LICENSE("GPL v2");