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: 13183815 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 30BB8C6FD1C for ; Wed, 22 Mar 2023 09:49:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=ydRu3Nq43bnN2rltkrfqn9JVDcSr3td3QDtvz0AOJ+k=; b=U3Z5i2bFIxdO3f hVRFNwTI4/4D+nNOSyFL9lLJWQjQpgjqCb4VhBO5ZxIEKO/TWjCBF+8cdsFonuk/xOhy5kU6lOKTe q11rD/XuJGVu0zhvutyiwv+fL/vX5OltCDzJyt1up6JPBQW94dgn1S1kNS3yWbAo2yLeoIVlEUpNO aFg+vh2dEW100C9WdB2VBT+H+viB9tX7w4mXm+aSK9xhliol7w6SW+xxn3csfVCJvjfl4m97t9F/g 26Y/EZyqM/95TRGHQYHCp2GY9RD0vy6bZy9bUF/yM5YH1YAKttH5P4xHoB716ecTJtCV6aeqyfN2l OzOAk9PKWYj3viDDoUUA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pev5q-00FWaS-0H; Wed, 22 Mar 2023 09:49:18 +0000 Received: from fd01.gateway.ufhost.com ([61.152.239.71]) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pev5n-00FWLf-0t for linux-riscv@lists.infradead.org; Wed, 22 Mar 2023 09:49:16 +0000 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230322_024915_616324_8ACFD517 X-CRM114-Status: GOOD ( 10.16 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.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: