From patchwork Wed Mar 22 09:48:17 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Walker Chen X-Patchwork-Id: 13183806 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 ED614C6FD1F for ; Wed, 22 Mar 2023 09:49:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230382AbjCVJtc (ORCPT ); Wed, 22 Mar 2023 05:49:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59352 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230008AbjCVJtF (ORCPT ); Wed, 22 Mar 2023 05:49:05 -0400 Received: from fd01.gateway.ufhost.com (fd01.gateway.ufhost.com [61.152.239.71]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 319E383F7; Wed, 22 Mar 2023 02:48:35 -0700 (PDT) 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 fd01.gateway.ufhost.com (Postfix) with ESMTP id A7B3824E3D1; Wed, 22 Mar 2023 17:48:32 +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; Wed, 22 Mar 2023 17:48:32 +0800 Received: from localhost.localdomain (183.27.97.64) by EXMBX168.cuchost.com (172.16.6.78) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Wed, 22 Mar 2023 17:48:31 +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 v6 1/4] dt-bindings: dma: snps,dw-axi-dmac: constrain the items of resets for JH7110 dma Date: Wed, 22 Mar 2023 17:48:17 +0800 Message-ID: <20230322094820.24738-2-walker.chen@starfivetech.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230322094820.24738-1-walker.chen@starfivetech.com> References: <20230322094820.24738-1-walker.chen@starfivetech.com> MIME-Version: 1.0 X-Originating-IP: [183.27.97.64] 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: dmaengine@vger.kernel.org The DMA controller needs two reset items to work properly on JH7110 SoC, so there is need to constrain the items' value to 2, other platforms have 1 reset item at most. Reviewed-by: Rob Herring Signed-off-by: Walker Chen --- .../bindings/dma/snps,dw-axi-dmac.yaml | 23 ++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml index 5c81194e2300..363cf8bd150d 100644 --- a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml +++ b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml @@ -20,6 +20,7 @@ properties: enum: - snps,axi-dma-1.01a - intel,kmb-axi-dma + - starfive,jh7110-axi-dma reg: minItems: 1 @@ -58,7 +59,8 @@ properties: maximum: 8 resets: - maxItems: 1 + minItems: 1 + maxItems: 2 snps,dma-masters: description: | @@ -109,6 +111,25 @@ required: - snps,priority - snps,block-size +if: + properties: + compatible: + contains: + enum: + - starfive,jh7110-axi-dma +then: + properties: + resets: + minItems: 2 + items: + - description: AXI reset line + - description: AHB reset line + - description: module reset +else: + properties: + resets: + maxItems: 1 + additionalProperties: false examples: