From nobody Fri Apr 10 22:05:51 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4E4B6C32789 for ; Fri, 19 Aug 2022 12:55:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349357AbiHSMzl (ORCPT ); Fri, 19 Aug 2022 08:55:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37236 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1349262AbiHSMy4 (ORCPT ); Fri, 19 Aug 2022 08:54:56 -0400 Received: from hutie.ust.cz (hutie.ust.cz [185.8.165.127]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 73372786DC; Fri, 19 Aug 2022 05:54:42 -0700 (PDT) From: =?UTF-8?q?Martin=20Povi=C5=A1er?= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cutebit.org; s=mail; t=1660913679; bh=Gkj3zv8/AM0qe5Jje8Bp7iYtlxqcO626XnrNO1Cj3wY=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=keSH+EIT5pxyg9zlrBLaHmVDb0kTl6hmA4nfblgxgR4YNeHQlAYHfO+l5qvJo926l G9Om5eu9TQLcHcs+FkrzPNSsXU20Bf3avCCdsnMsch0yEscQbl4clP1ruBz1cZe1VK nzshyHi6HRupXMQfwDwie9Gxv5mlbJEUe/EUxwes= To: =?UTF-8?q?Martin=20Povi=C5=A1er?= , Liam Girdwood , Mark Brown , Rob Herring , Krzysztof Kozlowski , Hector Martin , Sven Peter , Philipp Zabel Cc: Alyssa Rosenzweig , asahi@lists.linux.dev, alsa-devel@alsa-project.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 1/4] dt-bindings: sound: Add Apple MCA I2S transceiver Date: Fri, 19 Aug 2022 14:54:27 +0200 Message-Id: <20220819125430.4920-2-povik+lin@cutebit.org> In-Reply-To: <20220819125430.4920-1-povik+lin@cutebit.org> References: <20220819125430.4920-1-povik+lin@cutebit.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add binding schema for MCA I2S transceiver found on Apple M1 and other chips. Signed-off-by: Martin Povi=C5=A1er --- .../devicetree/bindings/sound/apple,mca.yaml | 131 ++++++++++++++++++ 1 file changed, 131 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/apple,mca.yaml diff --git a/Documentation/devicetree/bindings/sound/apple,mca.yaml b/Docum= entation/devicetree/bindings/sound/apple,mca.yaml new file mode 100644 index 000000000000..7b4f348c2be3 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/apple,mca.yaml @@ -0,0 +1,131 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/apple,mca.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Apple MCA I2S transceiver + +description: | + MCA is an I2S transceiver peripheral found on M1 and other Apple chips. = It is + composed of a number of identical clusters which can operate independent= ly + or in an interlinked fashion. Up to 6 clusters have been seen on an MCA. + +maintainers: + - Martin Povi=C5=A1er + +properties: + compatible: + items: + - enum: + - apple,t8103-mca + - apple,t6000-mca + - const: apple,mca + + reg: + items: + - description: Register region of the MCA clusters proper + - description: Register region of the DMA glue and its FIFOs + + interrupts: + minItems: 4 + maxItems: 6 + description: + One interrupt per each cluster + + '#address-cells': + const: 1 + + '#size-cells': + const: 0 + + dmas: + minItems: 16 + maxItems: 24 + description: + DMA channels corresponding to the SERDES units in the peripheral. Th= ey are + listed in groups of four per cluster, and within the group they are = given + as associated to the TXA, RXA, TXB, RXB units. + + dma-names: + minItems: 16 + items: + - const: tx0a + - const: rx0a + - const: tx0b + - const: rx0b + - const: tx1a + - const: rx1a + - const: tx1b + - const: rx1b + - const: tx2a + - const: rx2a + - const: tx2b + - const: rx2b + - const: tx3a + - const: rx3a + - const: tx3b + - const: rx3b + - const: tx4a + - const: rx4a + - const: tx4b + - const: rx4b + - const: tx5a + - const: rx5a + - const: tx5b + - const: rx5b + description: | + Names for the DMA channels: 'tx'/'rx', then cluster number, then 'a'= /'b' + based on the associated SERDES unit. + + clocks: + minItems: 4 + maxItems: 6 + description: + Clusters' input reference clock. + + resets: + maxItems: 1 + + power-domains: + minItems: 5 + maxItems: 7 + description: + First a general power domain for register access, then the power + domains of individual clusters for their operation. + + '#sound-dai-cells': + const: 1 + +required: + - compatible + - reg + - dmas + - dma-names + - clocks + - power-domains + - '#sound-dai-cells' + +additionalProperties: false + +examples: + - | + mca: i2s@9b600000 { + compatible =3D "apple,t6000-mca", "apple,mca"; + reg =3D <0x9b600000 0x10000>, + <0x9b200000 0x20000>; + + clocks =3D <&nco 0>, <&nco 1>, <&nco 2>, <&nco 3>; + power-domains =3D <&ps_audio_p>, <&ps_mca0>, <&ps_mca1>, + <&ps_mca2>, <&ps_mca3>; + dmas =3D <&admac 0>, <&admac 1>, <&admac 2>, <&admac 3>, + <&admac 4>, <&admac 5>, <&admac 6>, <&admac 7>, + <&admac 8>, <&admac 9>, <&admac 10>, <&admac 11>, + <&admac 12>, <&admac 13>, <&admac 14>, <&admac 15>; + dma-names =3D "tx0a", "rx0a", "tx0b", "rx0b", + "tx1a", "rx1a", "tx1b", "rx1b", + "tx2a", "rx2a", "tx2b", "rx2b", + "tx3a", "rx3a", "tx3b", "rx3b"; + + #sound-dai-cells =3D <1>; + }; --=20 2.33.0