From patchwork Wed Aug 24 16:07:12 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Martin_Povi=C5=A1er?= X-Patchwork-Id: 12953786 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 alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A480AC00140 for ; Wed, 24 Aug 2022 16:08:47 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 5B6B1844; Wed, 24 Aug 2022 18:07:55 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 5B6B1844 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1661357325; bh=rT/Qy+wlr7wx8/IDSkjjzXJlSDI//XAP5vcI0A09Y9I=; h=From:To:Subject:Date:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=caeD+8i+nT2eaAaRNdDS53eM8BgFZqhCjCzXD82VDD6QsOjNVEVwSMWj47RA8Kwkf zOwrmOKQGltgDzsmXBiIvEMwPmRce6a9zVhyHREmCGBHgsowYEUTbAJLS/7uYTH5FW Q1n1KPYMU5hEecq5JCF2s/EDHR6ZNzb8ZavCfjXw= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 5E58FF80525; Wed, 24 Aug 2022 18:07:27 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 30605F80527; Wed, 24 Aug 2022 18:07:26 +0200 (CEST) Received: from hutie.ust.cz (hutie.ust.cz [185.8.165.127]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 9B99DF8014E for ; Wed, 24 Aug 2022 18:07:19 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 9B99DF8014E Authentication-Results: alsa1.perex.cz; dkim=pass (1024-bit key) header.d=cutebit.org header.i=@cutebit.org header.b="etpO3InX" From: =?utf-8?q?Martin_Povi=C5=A1er?= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cutebit.org; s=mail; t=1661357238; bh=W43M9roquub8pfLHiJTGSXys+lf2d6CwWba52zkTpqY=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=etpO3InXRNR5P5/6DiOrTjwgmHlt3HSrEZz/fkszaXiJvs2b+M3/F6tVAJOouB8Xy Ra8/o8gCe56HRl2/vU6YneDYPwGerxqzDHt/Ybhmw2JKiqz9ZM8TjN9NUsDI7yv1sy GBy/QPwnwLZiPicH4CFsbrxmyvW8uKqRLfrgisiY= To: =?utf-8?q?Martin_Povi=C5=A1er?= , Liam Girdwood , Mark Brown , Rob Herring , Krzysztof Kozlowski , Hector Martin , Sven Peter , Philipp Zabel Subject: [PATCH v3 1/4] dt-bindings: sound: Add Apple MCA I2S transceiver Date: Wed, 24 Aug 2022 18:07:12 +0200 Message-Id: <20220824160715.95779-2-povik+lin@cutebit.org> In-Reply-To: <20220824160715.95779-1-povik+lin@cutebit.org> References: <20220824160715.95779-1-povik+lin@cutebit.org> MIME-Version: 1.0 Cc: devicetree@vger.kernel.org, alsa-devel@alsa-project.org, asahi@lists.linux.dev, Alyssa Rosenzweig , linux-kernel@vger.kernel.org X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" Add binding schema for MCA I2S transceiver found on Apple M1 and other chips. Signed-off-by: Martin Povišer Reviewed-by: Krzysztof Kozlowski --- .../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/Documentation/devicetree/bindings/sound/apple,mca.yaml new file mode 100644 index 000000000000..d5dc92b5b654 --- /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 independently + or in an interlinked fashion. Up to 6 clusters have been seen on an MCA. + +maintainers: + - Martin Povišer + +properties: + compatible: + items: + - enum: + - apple,t6000-mca + - apple,t8103-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. They 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 = "apple,t6000-mca", "apple,mca"; + reg = <0x9b600000 0x10000>, + <0x9b200000 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>; + };