From mboxrd@z Thu Jan 1 00:00:00 1970 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 E6FE4C433EF for ; Mon, 6 Jun 2022 19:20:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232195AbiFFTUF (ORCPT ); Mon, 6 Jun 2022 15:20:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49432 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229758AbiFFTT6 (ORCPT ); Mon, 6 Jun 2022 15:19:58 -0400 Received: from hutie.ust.cz (unknown [IPv6:2a03:3b40:fe:f0::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DF835113B75; Mon, 6 Jun 2022 12:19:54 -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=1654543192; bh=Vla6Rhfl/gMBj6xgJ0VP7fQelpDgmC8OEg+qQWxrpmQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=Ny6DtajuT28g+Hn74q+dQy3n8P98yg8HxM2Q2EGHrASbKTqYagLJ4C99wA52Wy8aJ EfSFqLu6+/CcTDGF6vq6pnWADSLQltOYIeVoqG+8EnqMZaRLewBpRxvRPV/2A5x9W3 blGBSzzqkwiD2T1MsUTMV4vEQg9LMMN83v7byraY= To: Liam Girdwood , Mark Brown , Rob Herring , Krzysztof Kozlowski , Jaroslav Kysela , Takashi Iwai Cc: =?UTF-8?q?Martin=20Povi=C5=A1er?= , alsa-devel@alsa-project.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Mark Kettenis , Hector Martin , Sven Peter , asahi@lists.linux.dev Subject: [RFC PATCH v2 1/5] dt-bindings: sound: Add Apple MCA I2S transceiver Date: Mon, 6 Jun 2022 21:19:06 +0200 Message-Id: <20220606191910.16580-2-povik+lin@cutebit.org> In-Reply-To: <20220606191910.16580-1-povik+lin@cutebit.org> References: <20220606191910.16580-1-povik+lin@cutebit.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Povišer --- .../devicetree/bindings/sound/apple,mca.yaml | 102 ++++++++++++++++++ 1 file changed, 102 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/apple,mca.yaml diff --git a/Documentation/devicetree/bindings/sound/apple,mca.yaml b/Documentation/devicetree/bindings/sound/apple,mca.yaml new file mode 100644 index 000000000000..c8a36d8c38ad --- /dev/null +++ b/Documentation/devicetree/bindings/sound/apple,mca.yaml @@ -0,0 +1,102 @@ +# 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 independently + or in an interlinked fashion. Up to 6 clusters have been seen on an MCA. + +maintainers: + - Martin Povišer + +properties: + compatible: + items: + - enum: + - apple,t8103-mca + - apple,t6000-mca + - const: apple,mca + + reg: + minItems: 2 + maxItems: 2 + + interrupts: + maxItems: 6 + description: | + One interrupt per each cluster + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + + dmas: + minItems: 16 + maxItems: 24 + description: | + DMA channels associated to the SERDES units within the peripheral. They + are listed in groups of four per cluster, and within the cluster they are + given in order TXA, RXA, TXB, RXB of the respective SERDES units. + + dma-names: + minItems: 16 + maxItems: 24 + 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. + + power-domains: + minItems: 5 + maxItems: 7 + description: | + First the overall 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: mca@9b600000 { + compatible = "apple,t6000-mca", "apple,mca"; + reg = <0x9b600000 0x10000>, + <0x9b500000 0x20000>; + + clocks = <&nco 0>, <&nco 1>, <&nco 2>, <&nco 3>; + power-domains = <&ps_audio_p>, <&ps_mca0>, <&ps_mca1>, + <&ps_mca2>, <&ps_mca3>; + dmas = <&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 = "tx0a", "rx0a", "tx0b", "rx0b", + "tx1a", "rx1a", "tx1b", "rx1b", + "tx2a", "rx2a", "tx2b", "rx2b", + "tx3a", "rx3a", "tx3b", "rx3b"; + + #sound-dai-cells = <1>; + }; -- 2.33.0