From patchwork Mon Feb 27 13:10:40 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Walker Chen X-Patchwork-Id: 657253 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 F2FD3C7EE2E for ; Mon, 27 Feb 2023 13:11:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229896AbjB0NLD (ORCPT ); Mon, 27 Feb 2023 08:11:03 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50134 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229685AbjB0NLC (ORCPT ); Mon, 27 Feb 2023 08:11:02 -0500 Received: from ex01.ufhost.com (ex01.ufhost.com [61.152.239.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 23BD912878; Mon, 27 Feb 2023 05:11:01 -0800 (PST) Received: from EXMBX166.cuchost.com (unknown [175.102.18.54]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "EXMBX166", Issuer "EXMBX166" (not verified)) by ex01.ufhost.com (Postfix) with ESMTP id C629424E272; Mon, 27 Feb 2023 21:10:54 +0800 (CST) Received: from EXMBX168.cuchost.com (172.16.6.78) by EXMBX166.cuchost.com (172.16.6.76) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Mon, 27 Feb 2023 21:10:54 +0800 Received: from localhost.localdomain (113.72.145.171) by EXMBX168.cuchost.com (172.16.6.78) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Mon, 27 Feb 2023 21:10:54 +0800 From: Walker Chen To: Eugeniy Paltsev , Vinod Koul , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Palmer Dabbelt , "Emil Renner Berthing" , Walker Chen CC: , , , Subject: [PATCH v3 1/3] dt-bindings: dma: snps,dw-axi-dmac: constrain minItems/maxItems of resets for JH7110 DMA Date: Mon, 27 Feb 2023 21:10:40 +0800 Message-ID: <20230227131042.16125-2-walker.chen@starfivetech.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230227131042.16125-1-walker.chen@starfivetech.com> References: <20230227131042.16125-1-walker.chen@starfivetech.com> MIME-Version: 1.0 X-Originating-IP: [113.72.145.171] X-ClientProxiedBy: EXCAS066.cuchost.com (172.16.6.26) To EXMBX168.cuchost.com (172.16.6.78) X-YovoleRuleAgent: yovoleflag Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org The DMA controller needs two reset items to work properly on JH7110 SoC, so there is need to change the maxItems' value to 2 and add minItems whose value is equal to 1. Other platforms do not have this constraint. Signed-off-by: Walker Chen --- .../bindings/dma/snps,dw-axi-dmac.yaml | 25 ++++++++++++++++--- 1 file changed, 21 insertions(+), 4 deletions(-) diff --git a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml index ad107a4d3b33..4ed0a6b7ca69 100644 --- a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml +++ b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml @@ -12,14 +12,12 @@ maintainers: description: Synopsys DesignWare AXI DMA Controller DT Binding -allOf: - - $ref: "dma-controller.yaml#" - properties: compatible: enum: - snps,axi-dma-1.01a - intel,kmb-axi-dma + - starfive,jh7110-axi-dma reg: minItems: 1 @@ -58,7 +56,8 @@ properties: maximum: 8 resets: - maxItems: 1 + minItems: 1 + maxItems: 2 snps,dma-masters: description: | @@ -109,6 +108,24 @@ required: - snps,priority - snps,block-size +allOf: + - $ref: "dma-controller.yaml#" + - if: + properties: + compatible: + contains: + enum: + - starfive,jh7110-axi-dma + then: + properties: + resets: + minItems: 1 + maxItems: 2 + else: + properties: + resets: + maxItems: 1 + additionalProperties: false examples: