From patchwork Fri Nov 27 05:30:20 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shengjiu Wang X-Patchwork-Id: 333603 Delivered-To: patch@linaro.org Received: by 2002:a92:5e16:0:0:0:0:0 with SMTP id s22csp1912474ilb; Thu, 26 Nov 2020 21:39:14 -0800 (PST) X-Google-Smtp-Source: ABdhPJyXClkbBUlawg8qHqojX6LMRyp8wdcqje3Mq4BQYdJJ0vaHwp3eMj36V5QK0mag/p9Eu0WW X-Received: by 2002:a17:906:394:: with SMTP id b20mr6138147eja.143.1606455553995; Thu, 26 Nov 2020 21:39:13 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1606455553; cv=none; d=google.com; s=arc-20160816; b=Sn+3aTa5Q8tsaZ+DufUXGI0WOKSU/ScdxXrb6E7vl+wJwkhciydD+C5T6l1jG+tvcf L+jgXm7DoBOzCIPhjYC3LDMiEweF97CtWQjLtj4iBI5yuim7qFpZ5MgcCssX7ownsFoA pGgFeKbTe05HOblZ0OiWWNka/mijumJycHYx8rg60OWvoZlYWtamevHEvfsvfURDlTFa DRzSUMr5jeM/gstN6kx+U4GvmhpfXlcXh5XlvS62F0Abfw92OGi/Pe/7W/NC5XlzVg4t 95HI0H+IjR5S/IVON8RAuG353aKL5VS2QceFtnbVng9LhdmYWH6Wr11VA1ZIzPJ9rtAE DI/A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:message-id:date:subject:cc:to:from; bh=sU+OIi+Ki+u9TPRJ48DF48+rJNStoEtydXT6WcwbTPg=; b=B9d60A+S6RGELtetxUUm8XhkWo9pV4KPlUF5ZHmrN1xcEkhAzolsZhJSygtIcTUa7h Tlh9Ev2z0qCuAsxLz3oN7HraxliHPyLHiFY5lEC66XM59JfCDdF2VRV8XHMBPhc6/QQw wiF4KdHEo46uWz/34QiSZqnaSxguj+25pUfBSNqlmaukptYt6TGEWB1f5N3/XjBq0Eme KPjkauSczmDg4rT0Ut15LMeUgQigWB+xyIbPGQKrGXNSgrAug8nEmUY+469ykxdo8oQE azPg7xeTfgTTwVnmz9VFRasnw/DUr2A4zgAM/fFMExHVm5aYpCQinEOkdENs5Px1CjnO 9uqw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of devicetree-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=devicetree-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=nxp.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id i23si4036938ejg.680.2020.11.26.21.39.13; Thu, 26 Nov 2020 21:39:13 -0800 (PST) Received-SPF: pass (google.com: domain of devicetree-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of devicetree-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=devicetree-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=nxp.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730366AbgK0Fho (ORCPT + 6 others); Fri, 27 Nov 2020 00:37:44 -0500 Received: from inva020.nxp.com ([92.121.34.13]:51444 "EHLO inva020.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730324AbgK0Fho (ORCPT ); Fri, 27 Nov 2020 00:37:44 -0500 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 4F6D71A0E73; Fri, 27 Nov 2020 06:37:42 +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 31B091A0793; Fri, 27 Nov 2020 06:37:37 +0100 (CET) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id EF3A14029B; Fri, 27 Nov 2020 06:37:29 +0100 (CET) From: Shengjiu Wang To: timur@kernel.org, nicoleotsuka@gmail.com, Xiubo.Lee@gmail.com, festevam@gmail.com, broonie@kernel.org, perex@perex.cz, tiwai@suse.com, alsa-devel@alsa-project.org, lgirdwood@gmail.com, robh+dt@kernel.org, devicetree@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/2] ASoC: dt-bindings: imx-hdmi: Add binding doc for hdmi machine driver Date: Fri, 27 Nov 2020 13:30:20 +0800 Message-Id: <1606455021-18882-1-git-send-email-shengjiu.wang@nxp.com> X-Mailer: git-send-email 2.7.4 X-Virus-Scanned: ClamAV using ClamSMTP Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Imx-hdmi is a new added machine driver for supporting hdmi devices on i.MX platforms. There is HDMI IP or external HDMI modules connect with SAI or AUD2HTX interface. Signed-off-by: Shengjiu Wang --- .../bindings/sound/imx-audio-hdmi.yaml | 52 +++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/imx-audio-hdmi.yaml -- 2.27.0 diff --git a/Documentation/devicetree/bindings/sound/imx-audio-hdmi.yaml b/Documentation/devicetree/bindings/sound/imx-audio-hdmi.yaml new file mode 100644 index 000000000000..d5474f83ac2c --- /dev/null +++ b/Documentation/devicetree/bindings/sound/imx-audio-hdmi.yaml @@ -0,0 +1,52 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/imx-audio-hdmi.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NXP i.MX audio complex with HDMI + +maintainers: + - Shengjiu Wang + +properties: + compatible: + enum: + - fsl,imx-audio-hdmi + - fsl,imx-audio-sii902x + + model: + $ref: /schemas/types.yaml#/definitions/string + description: User specified audio sound card name + + audio-cpu: + description: The phandle of an CPU DAI controller + + hdmi-out: + description: | + This is a boolean property. If present, the transmitting function + of HDMI will be enabled, indicating there's a physical HDMI out + connector or jack on the board or it's connecting to some other IP + block, such as an HDMI encoder or display-controller. + + hdmi-in: + description: | + This is a boolean property. If present, the receiving function of + HDMI will be enabled, indicating there is a physical HDMI in + connector/jack on the board. + +required: + - compatible + - model + - audio-cpu + +additionalProperties: false + +examples: + - | + sound-hdmi { + compatible = "fsl,imx-audio-hdmi"; + model = "audio-hdmi"; + audio-cpu = <&aud2htx>; + hdmi-out; + }; From patchwork Fri Nov 27 05:30:21 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shengjiu Wang X-Patchwork-Id: 333604 Delivered-To: patch@linaro.org Received: by 2002:a92:5e16:0:0:0:0:0 with SMTP id s22csp1912482ilb; Thu, 26 Nov 2020 21:39:15 -0800 (PST) X-Google-Smtp-Source: ABdhPJx9JTvWWD/iVgvQ0XmCDGVxKVkzezag3s4MAKOrRZUjQYr9I2l7NY7Z6b7X4r7I53WpHQGZ X-Received: by 2002:a17:906:ec9:: with SMTP id u9mr6103094eji.400.1606455555040; Thu, 26 Nov 2020 21:39:15 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1606455555; cv=none; d=google.com; s=arc-20160816; b=PbEsUo9dOAuLNqajN5J0hhTQomMxjC+OcojVDHKLRtBUQrECsEUOJIALhjRSz2UkKl lMh1bg+28gpGaQ7z5SPkgkZMxxac4WM+fe8ojP3zEa1mzkoqzob4XfOqDuB3IalMiRzm YcEEMdeTIj0neIeH1wh/Ax48/F+pdaRX+pgf+BKKBVBmlQDUPb2SQwyUuDi+uWFchSXw qFNcFJju94BPHmL/wGVBAE7c+OBPvOm40CmIEqazkFRCvDwD/jBt2PZkH3ZqJZYupyKa pGJ0JZM4dGU4PclGrQ49eOdgokotIVDmZ1JQ85hBDzZ/7fIrnfbUDgkO5m24nTAyJvQN pTZw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:references:in-reply-to:message-id:date:subject :cc:to:from; bh=NgebRWzY9dGLx3Kht//BzXSltDffeBFTB3idlfLbUDA=; b=Ab69YyWrej+ryHqOa+2M8kh/ogWy8f74adEl+D4OitRMMvF5iuetcMhnzkuxfRtJfm P+wAPsL7eNkPwOGWsNzZD7G6IujjoH2j7CjlamR1pld7GosnbTLUNRM4T10riYuv89vb /GQbGP5/n9fSlZPQZdWtZuewNujRRpe8lrBaawIalwikixbIJv7zQX6NQuDbbUj/4OPe HiMisRYxEjmPv39aG7XR6yab8sAEN76mUKst5SrNImSPXSHe1FQEdvh6z1/rnzm83vfZ 0rp9dljNU5pBTwrrJ25i7FvX6PMNM6RbaoQ7/vRCe55MijLb44araohb5jLvVW0pcoU+ I9Bg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of devicetree-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=devicetree-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=nxp.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id i23si4036938ejg.680.2020.11.26.21.39.14; Thu, 26 Nov 2020 21:39:15 -0800 (PST) Received-SPF: pass (google.com: domain of devicetree-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of devicetree-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=devicetree-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=nxp.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730324AbgK0Fhr (ORCPT + 6 others); Fri, 27 Nov 2020 00:37:47 -0500 Received: from inva020.nxp.com ([92.121.34.13]:51466 "EHLO inva020.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731606AbgK0Fhr (ORCPT ); Fri, 27 Nov 2020 00:37:47 -0500 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 513DC1A0E74; Fri, 27 Nov 2020 06:37:44 +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 0FFF91A0E79; Fri, 27 Nov 2020 06:37:39 +0100 (CET) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id E747D402D3; Fri, 27 Nov 2020 06:37:31 +0100 (CET) From: Shengjiu Wang To: timur@kernel.org, nicoleotsuka@gmail.com, Xiubo.Lee@gmail.com, festevam@gmail.com, broonie@kernel.org, perex@perex.cz, tiwai@suse.com, alsa-devel@alsa-project.org, lgirdwood@gmail.com, robh+dt@kernel.org, devicetree@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Subject: [PATCH 2/2] ASoC: fsl: Add imx-hdmi machine driver Date: Fri, 27 Nov 2020 13:30:21 +0800 Message-Id: <1606455021-18882-2-git-send-email-shengjiu.wang@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1606455021-18882-1-git-send-email-shengjiu.wang@nxp.com> References: <1606455021-18882-1-git-send-email-shengjiu.wang@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org The driver is initially designed for sound card using HDMI interface on i.MX platform. There is internal HDMI IP or external HDMI modules connect with SAI or AUD2HTX interface. It supports both transmitter and receiver devices. Signed-off-by: Shengjiu Wang --- sound/soc/fsl/Kconfig | 12 ++ sound/soc/fsl/Makefile | 2 + sound/soc/fsl/imx-hdmi.c | 235 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 249 insertions(+) create mode 100644 sound/soc/fsl/imx-hdmi.c -- 2.27.0 diff --git a/sound/soc/fsl/Kconfig b/sound/soc/fsl/Kconfig index 24710decd38a..84db0b7b9d59 100644 --- a/sound/soc/fsl/Kconfig +++ b/sound/soc/fsl/Kconfig @@ -305,6 +305,18 @@ config SND_SOC_IMX_AUDMIX Say Y if you want to add support for SoC audio on an i.MX board with an Audio Mixer. +config SND_SOC_IMX_HDMI + tristate "SoC Audio support for i.MX boards with HDMI port" + select SND_SOC_FSL_SAI + select SND_SOC_FSL_AUD2HTX + select SND_SOC_HDMI_CODEC + help + ALSA SoC Audio support with HDMI feature for Freescale SoCs that have + SAI/AUD2HTX and connect with internal HDMI IP or external module + SII902X. + Say Y if you want to add support for SoC audio on an i.MX board with + IMX HDMI. + endif # SND_IMX_SOC endmenu diff --git a/sound/soc/fsl/Makefile b/sound/soc/fsl/Makefile index 0b20e038b65b..8c5fa8a859c0 100644 --- a/sound/soc/fsl/Makefile +++ b/sound/soc/fsl/Makefile @@ -65,9 +65,11 @@ snd-soc-imx-es8328-objs := imx-es8328.o 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 obj-$(CONFIG_SND_SOC_EUKREA_TLV320) += snd-soc-eukrea-tlv320.o obj-$(CONFIG_SND_SOC_IMX_ES8328) += snd-soc-imx-es8328.o obj-$(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 diff --git a/sound/soc/fsl/imx-hdmi.c b/sound/soc/fsl/imx-hdmi.c new file mode 100644 index 000000000000..ac164514b1b2 --- /dev/null +++ b/sound/soc/fsl/imx-hdmi.c @@ -0,0 +1,235 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright 2017-2020 NXP + +#include +#include +#include +#include +#include +#include "fsl_sai.h" + +/** + * struct cpu_priv - CPU private data + * @sysclk_freq: SYSCLK rates for set_sysclk() + * @sysclk_dir: SYSCLK directions for set_sysclk() + * @sysclk_id: SYSCLK ids for set_sysclk() + * @slot_width: Slot width of each frame + * + * Note: [1] for tx and [0] for rx + */ +struct cpu_priv { + unsigned long sysclk_freq[2]; + u32 sysclk_dir[2]; + u32 sysclk_id[2]; + u32 slot_width; +}; + +struct imx_hdmi_data { + struct snd_soc_dai_link dai; + struct snd_soc_card card; + struct snd_soc_jack hdmi_jack; + struct snd_soc_jack_pin hdmi_jack_pin; + struct cpu_priv cpu_priv; + u32 dai_fmt; +}; + +static int imx_hdmi_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct imx_hdmi_data *data = snd_soc_card_get_drvdata(rtd->card); + bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; + struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); + struct snd_soc_card *card = rtd->card; + struct device *dev = card->dev; + int ret; + + /* set cpu DAI configuration */ + ret = snd_soc_dai_set_sysclk(cpu_dai, data->cpu_priv.sysclk_id[tx], + 8 * data->cpu_priv.slot_width * params_rate(params), + tx ? SND_SOC_CLOCK_OUT : SND_SOC_CLOCK_IN); + if (ret && ret != -ENOTSUPP) { + dev_err(dev, "failed to set cpu sysclk: %d\n", ret); + return ret; + } + + ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0, 0, 2, data->cpu_priv.slot_width); + if (ret && ret != -ENOTSUPP) { + dev_err(dev, "failed to set cpu dai tdm slot: %d\n", ret); + return ret; + } + + return 0; +} + +static struct snd_soc_ops imx_hdmi_ops = { + .hw_params = imx_hdmi_hw_params, +}; + +static const struct snd_soc_dapm_widget imx_hdmi_widgets[] = { + SND_SOC_DAPM_LINE("HDMI Jack", NULL), +}; + +static int imx_hdmi_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_card *card = rtd->card; + struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); + struct snd_soc_component *component = codec_dai->component; + struct imx_hdmi_data *data = snd_soc_card_get_drvdata(card); + int ret; + + data->hdmi_jack_pin.pin = "HDMI Jack"; + data->hdmi_jack_pin.mask = SND_JACK_LINEOUT; + /* enable jack detection */ + ret = snd_soc_card_jack_new(card, "HDMI Jack", SND_JACK_LINEOUT, + &data->hdmi_jack, &data->hdmi_jack_pin, 1); + if (ret) { + dev_err(card->dev, "Can't new HDMI Jack %d\n", ret); + return ret; + } + + ret = snd_soc_component_set_jack(component, &data->hdmi_jack, NULL); + if (ret && ret != -EOPNOTSUPP) { + dev_err(card->dev, "Can't set HDMI Jack %d\n", ret); + return ret; + } + + return 0; +}; + +static int imx_hdmi_probe(struct platform_device *pdev) +{ + struct device_node *np = pdev->dev.of_node; + struct snd_soc_dai_link_component *dlc; + struct platform_device *cpu_pdev; + struct device_node *cpu_np; + struct imx_hdmi_data *data; + int ret; + + dlc = devm_kzalloc(&pdev->dev, 3 * sizeof(*dlc), GFP_KERNEL); + if (!dlc) + return -ENOMEM; + + cpu_np = of_parse_phandle(np, "audio-cpu", 0); + if (!cpu_np) { + dev_err(&pdev->dev, "cpu dai 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; + } + + data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); + if (!data) { + ret = -ENOMEM; + goto fail; + } + + 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 = "i.MX HDMI"; + data->dai.stream_name = "i.MX HDMI"; + data->dai.cpus->dai_name = dev_name(&cpu_pdev->dev); + data->dai.platforms->of_node = cpu_np; + data->dai.ops = &imx_hdmi_ops; + data->dai.playback_only = true; + data->dai.capture_only = false; + data->dai.init = imx_hdmi_init; + + if (of_node_name_eq(cpu_np, "sai")) { + data->cpu_priv.sysclk_id[1] = FSL_SAI_CLK_MAST1; + data->cpu_priv.sysclk_id[0] = FSL_SAI_CLK_MAST1; + } + + if (of_device_is_compatible(np, "fsl,imx-audio-sii902x")) { + data->dai_fmt = SND_SOC_DAIFMT_LEFT_J; + data->cpu_priv.slot_width = 24; + } else { + data->dai_fmt = SND_SOC_DAIFMT_I2S; + data->cpu_priv.slot_width = 32; + } + + if (of_property_read_bool(np, "hdmi-out")) { + data->dai.playback_only = true; + data->dai.capture_only = false; + data->dai.codecs->dai_name = "i2s-hifi"; + data->dai.codecs->name = "hdmi-audio-codec.1"; + data->dai.dai_fmt = data->dai_fmt | + SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS; + } + + if (of_property_read_bool(np, "hdmi-in")) { + data->dai.playback_only = false; + data->dai.capture_only = true; + data->dai.codecs->dai_name = "i2s-hifi"; + data->dai.codecs->name = "hdmi-audio-codec.2"; + data->dai.dai_fmt = data->dai_fmt | + SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBM_CFM; + } + + if ((data->dai.playback_only && data->dai.capture_only) || + (!data->dai.playback_only && !data->dai.capture_only)) { + dev_err(&pdev->dev, "Wrongly enable HDMI DAI link\n"); + goto fail; + } + + data->card.dapm_widgets = imx_hdmi_widgets; + data->card.num_dapm_widgets = ARRAY_SIZE(imx_hdmi_widgets); + data->card.dev = &pdev->dev; + data->card.owner = THIS_MODULE; + ret = snd_soc_of_parse_card_name(&data->card, "model"); + if (ret) + goto fail; + + data->card.num_links = 1; + data->card.dai_link = &data->dai; + + 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: + if (cpu_np) + of_node_put(cpu_np); + + return ret; +} + +static const struct of_device_id imx_hdmi_dt_ids[] = { + { .compatible = "fsl,imx-audio-hdmi", }, + { .compatible = "fsl,imx-audio-sii902x", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, imx_hdmi_dt_ids); + +static struct platform_driver imx_hdmi_driver = { + .driver = { + .name = "imx-hdmi", + .owner = THIS_MODULE, + .pm = &snd_soc_pm_ops, + .of_match_table = imx_hdmi_dt_ids, + }, + .probe = imx_hdmi_probe, +}; +module_platform_driver(imx_hdmi_driver); + +MODULE_AUTHOR("Freescale Semiconductor, Inc."); +MODULE_DESCRIPTION("Freescale i.MX hdmi audio ASoC machine driver"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:imx-hdmi");