From patchwork Fri Aug 13 09:11:55 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 12435179 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7B935C4338F for ; Fri, 13 Aug 2021 09:14:06 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 57AE06024A for ; Fri, 13 Aug 2021 09:14:05 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 57AE06024A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bp.renesas.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-project.org 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 8BAB9189E; Fri, 13 Aug 2021 11:13:13 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 8BAB9189E DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1628846043; bh=gRrajjpsBPvz80+LVq2A7+49eF2iJnh3g1GqrqKU1XM=; h=From:To:Subject:Date:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=pqDd1t/K65aOOhe5jucZWHaMUrXg4PAh+HF/f4Aw7AvNd+Mspzz4/MoO5BDKCPzFS 0fQQBBRAJFxltNN+nEWPqhfKcUEPoPGFAvy8G0Slrl17BuyYjmxSmMYw5UtTjJvs3u CppnwExXRtWlAoNcMqnZDeH0qSjIgbAkxv2eYto8= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id DD5AEF802D2; Fri, 13 Aug 2021 11:12:24 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 73DB8F804CC; Fri, 13 Aug 2021 11:12:23 +0200 (CEST) Received: from relmlie5.idc.renesas.com (relmlor1.renesas.com [210.160.252.171]) by alsa1.perex.cz (Postfix) with ESMTP id 77B35F800AF for ; Fri, 13 Aug 2021 11:12:14 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 77B35F800AF X-IronPort-AV: E=Sophos;i="5.84,318,1620658800"; d="scan'208";a="90541571" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 13 Aug 2021 18:12:12 +0900 Received: from localhost.localdomain (unknown [10.226.92.30]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 877124228B65; Fri, 13 Aug 2021 18:12:09 +0900 (JST) From: Biju Das To: Rob Herring Subject: [PATCH v5 2/3] ASoC: dt-bindings: renesas, rz-ssi: Update slave dma channel configuration parameter Date: Fri, 13 Aug 2021 10:11:55 +0100 Message-Id: <20210813091156.10700-3-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210813091156.10700-1-biju.das.jz@bp.renesas.com> References: <20210813091156.10700-1-biju.das.jz@bp.renesas.com> Cc: devicetree@vger.kernel.org, alsa-devel@alsa-project.org, Geert Uytterhoeven , Kuninori Morimoto , Prabhakar Mahadev Lad , Liam Girdwood , Biju Das , linux-renesas-soc@vger.kernel.org, Vinod Koul , Mark Brown , Chris Paterson , Biju Das , Chris Brandt 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" The DMAC on RZ/G2L has specific slave channel configuration parameters for SSI. This patch updates the dmas description and example node to include the encoded slave channel configuration. Signed-off-by: Biju Das Reviewed-by: Lad Prabhakar --- Note:- This patch is based on [1] [1]:- https://patchwork.kernel.org/project/linux-renesas-soc/patch/20210806095322.2326-2-biju.das.jz@bp.renesas.com/ v4->v5: * Updated dmas description and removed fixes as it is an enhancement now. v3->v4: * Updated bindings as the DMAC driver on RZ/G2L expects the slave channel configuration to be passed in dmas property. v2->v3: * Merged the binding patch with dmas added * Updated dt binding example with encoded #dma-cells value. v1->v2: * Rebased on 5.14-rc2. --- .../bindings/sound/renesas,rz-ssi.yaml | 22 +++++++++++++++++-- 1 file changed, 20 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/sound/renesas,rz-ssi.yaml b/Documentation/devicetree/bindings/sound/renesas,rz-ssi.yaml index 471937cb8d05..414ff8035a4e 100644 --- a/Documentation/devicetree/bindings/sound/renesas,rz-ssi.yaml +++ b/Documentation/devicetree/bindings/sound/renesas,rz-ssi.yaml @@ -48,6 +48,24 @@ properties: dmas: minItems: 1 maxItems: 2 + description: + The first cell represents a phandle to dmac + The second cell specifies the encoded MID/RID values of the SSI port + connected to the DMA client and the slave channel configuration + parameters. + bits[0:9] - Specifies MID/RID value of a SSI channel as below + MID/RID value of SSI rx0 = 0x256 + MID/RID value of SSI tx0 = 0x255 + MID/RID value of SSI rx1 = 0x25a + MID/RID value of SSI tx1 = 0x259 + MID/RID value of SSI rt2 = 0x25f + MID/RID value of SSI rx3 = 0x262 + MID/RID value of SSI tx3 = 0x261 + bit[10] - HIEN = 1, Detects a request in response to the rising edge + of the signal + bit[11] - LVL = 0, Detects based on the edge + bits[12:14] - AM = 2, Bus cycle mode + bit[15] - TM = 0, Single transfer mode dma-names: oneOf: @@ -93,8 +111,8 @@ examples: clock-names = "ssi", "ssi_sfr", "audio_clk1", "audio_clk2"; power-domains = <&cpg>; resets = <&cpg R9A07G044_SSI0_RST_M2_REG>; - dmas = <&dmac 0x255>, - <&dmac 0x256>; + dmas = <&dmac 0x2655>, + <&dmac 0x2656>; dma-names = "tx", "rx"; #sound-dai-cells = <0>; };