From patchwork Mon Mar 8 13:22:27 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shengjiu Wang X-Patchwork-Id: 395414 Delivered-To: patch@linaro.org Received: by 2002:a02:8562:0:0:0:0:0 with SMTP id g89csp1716203jai; Mon, 8 Mar 2021 05:36:42 -0800 (PST) X-Google-Smtp-Source: ABdhPJw5SHG24KzBa8jDleI1h6SkvMTI6zyw0XJwXHplQk2769sIABQLinUa4jUq0NC93eAxVxx8 X-Received: by 2002:a17:906:cecc:: with SMTP id si12mr15107996ejb.461.1615210602491; Mon, 08 Mar 2021 05:36:42 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1615210602; cv=none; d=google.com; s=arc-20160816; b=bJMRcjki4BAErKfxW5lSs4i6cyu6wLVMLDHMdnP/JW3kyTWsYItvKWNgLPASj4RhjA op4cMak451HVOp2UP/VjmcylI1S/b9bgkmi2YTRSongSP4G6ZrfGxNAjvnW8Mi7yiR4z 8fBYgGoIxhy6x+Q8DiQzMahEWJI2OMmXHTkqE9ovztheXAG81C3oNKOvE0UMdVGubGAO WGaCKoEeQrkTfqNW20YgUM1bEJgGlgBjhd8saOR9QT458nRIfdX0UOfZlO9++XGoFE/h QIk7f2o/OKq/L+EFpDg9jToYfIMunPP/EV6U22UjGIWftruBreQZ7RY285HXDzqQlfwP 0+6g== 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 :to:from; bh=SqegoaQsFWnv+XGyNrm4kBFkP1iaVeHKD9f6HyPSc6E=; b=Y5eJM/P3T7XYPq0cBI6FOqxDblIpMZNaCYCPjPJyCDnXbObYUb52RakKsQCsDmc5LO cSYMO/aeH9xQF395qDjQkakloHxCACFKHhHN2Hf4u6dpKWrgppH1BONZ4w8lnX187lF1 Ijet3uQs1BUcjQKYw//5wwzDp0crQrHFG5GG11hsLKhCj3BjzoXiTIrDDxyAh0SzgsEp +Yn8WAEfYZGLTbxctJn1LKtQFhBYhesgaTyEXZnlGXnXDRekmFLMOOF7lfk++Bh8L/1M sGVNH3JaqkLVeJ79Lb7YOrBKOMNdtQfWPP8h3VQvf8SostDxtuYbDdIjNOVPZJGel/+c GPyw== 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 jo14si6783734ejb.460.2021.03.08.05.36.42; Mon, 08 Mar 2021 05:36:42 -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 S230300AbhCHNgL (ORCPT + 6 others); Mon, 8 Mar 2021 08:36:11 -0500 Received: from inva020.nxp.com ([92.121.34.13]:35008 "EHLO inva020.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229627AbhCHNfj (ORCPT ); Mon, 8 Mar 2021 08:35:39 -0500 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 8C6A81A0BB7; Mon, 8 Mar 2021 14:35:38 +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 B0E631A0BB1; Mon, 8 Mar 2021 14:35:31 +0100 (CET) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id EF06B402AC; Mon, 8 Mar 2021 14:35:22 +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 v4 3/6] ASoC: dt-bindings: fsl_rpmsg: Add binding doc for rpmsg cpu dai driver Date: Mon, 8 Mar 2021 21:22:27 +0800 Message-Id: <1615209750-2357-4-git-send-email-shengjiu.wang@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1615209750-2357-1-git-send-email-shengjiu.wang@nxp.com> References: <1615209750-2357-1-git-send-email-shengjiu.wang@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org fsl_rpmsg cpu dai driver is driver for rpmsg audio, which is mainly used for getting the user's configuration from device tree and configure the clocks which is used by Cortex-M core. So in this document define the needed property. Signed-off-by: Shengjiu Wang --- .../devicetree/bindings/sound/fsl,rpmsg.yaml | 118 ++++++++++++++++++ 1 file changed, 118 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/fsl,rpmsg.yaml -- 2.27.0 diff --git a/Documentation/devicetree/bindings/sound/fsl,rpmsg.yaml b/Documentation/devicetree/bindings/sound/fsl,rpmsg.yaml new file mode 100644 index 000000000000..5731c1fbc0a6 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/fsl,rpmsg.yaml @@ -0,0 +1,118 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/fsl,rpmsg.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NXP Audio RPMSG CPU DAI Controller + +maintainers: + - Shengjiu Wang + +description: | + fsl_rpmsg cpu dai driver is virtual driver for rpmsg audio, which doesn't + touch hardware. It is mainly used for getting the user's configuration + from device tree and configure the clocks which is used by Cortex-M core. + So in this document define the needed property. + +properties: + compatible: + enum: + - fsl,imx7ulp-rpmsg + - fsl,imx8mn-rpmsg + - fsl,imx8mm-rpmsg + - fsl,imx8mp-rpmsg + + model: + $ref: /schemas/types.yaml#/definitions/string + description: User specified audio sound card name + + clocks: + items: + - description: Peripheral clock for register access + - description: Master clock + - description: DMA clock for DMA register access + - description: Parent clock for multiple of 8kHz sample rates + - description: Parent clock for multiple of 11kHz sample rates + minItems: 5 + + clock-names: + items: + - const: ipg + - const: mclk + - const: dma + - const: pll8k + - const: pll11k + minItems: 5 + + power-domains: + maxItems: 1 + + fsl,audioindex: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1] + default: 0 + description: Instance index for sound card in + M core side, which share one rpmsg + channel. + + fsl,version: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [1, 2] + default: 2 + description: The version of M core image, which is + to make driver compatible with different image. + + fsl,buffer-size: + $ref: /schemas/types.yaml#/definitions/uint32 + description: pre allocate dma buffer size + + fsl,enable-lpa: + $ref: /schemas/types.yaml#/definitions/flag + description: enable low power audio path. + + fsl,rpmsg-out: + $ref: /schemas/types.yaml#/definitions/flag + description: | + This is a boolean property. If present, the transmitting function + will be enabled. + + fsl,rpmsg-in: + $ref: /schemas/types.yaml#/definitions/flag + description: | + This is a boolean property. If present, the receiving function + will be enabled. + + fsl,codec-type: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1, 2] + default: 0 + description: Sometimes the codec is registered by + driver not by the device tree, this items + can be used to distinguish codecs. + + audio-codec: + $ref: /schemas/types.yaml#/definitions/phandle + description: The phandle of the audio codec + + memory-region: + $ref: /schemas/types.yaml#/definitions/phandle + description: phandle to the reserved memory nodes + +required: + - compatible + - fsl,audioindex + - fsl,version + - fsl,buffer-size + +additionalProperties: false + +examples: + - | + rpmsg_audio: rpmsg_audio { + compatible = "fsl,imx8mn-rpmsg"; + fsl,audioindex = <0> ; + fsl,version = <2>; + fsl,buffer-size = <0x6000000>; + fsl,enable-lpa; + };