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: 13153439 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 9F751C64ED6 for ; Mon, 27 Feb 2023 13:11:34 +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=CFhJ1qpO2LZt46zLbG3tSYjNZqe5JEfliO9pS7GlhRA=; b=1SdgzU0OejL8dF sWbApysP11JqlzHd4FkdYCYxyTClVAHIVZR4ZuNUFqPTV4ADwIXIL1W/rXNW3eMmNzkyZX/Wg0hI6 EMHRqbJu+NYotE938WfkWDDaVK+pWNXsJ2BNbAT31hyMqKVKo0h4ZraReCVT57hUkSyMq8h+c5LDZ H3EgvuhFTr0Q6Rr0tCDJI/XIIxi+nLNrVCRF90kORKZAr7zqM0G0X4my7jjypTGa9of1lGPFY/W0e qhYTQJSG/nSLCy552/c63j4pwYtbBwGpz8Cpqk3ltQU10ZFYfPp5VE4bqRuA0rZA+d/5TUTFeqdb4 vFeTHs0Nf4NnAiVfG38g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pWdHq-009hNB-Ld; Mon, 27 Feb 2023 13:11:26 +0000 Received: from ex01.ufhost.com ([61.152.239.75]) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pWdHm-009hG3-90 for linux-riscv@lists.infradead.org; Mon, 27 Feb 2023 13:11:25 +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 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230227_051122_616614_8C73E59D X-CRM114-Status: GOOD ( 10.20 ) 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 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: