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Thu, 5 Nov 2026 08:42:38 +0000 Received: from ubuntu (unknown [172.20.64.99]) by smtprelay.cixcomputing.com (Postfix) with ESMTPSA id 6A66D4102E60; Thu, 5 Nov 2026 16:42:37 +0800 (CST) Date: Thu, 5 Nov 2026 16:42:36 +0800 From: Jelly Jia To: Frank Li Cc: vkoul@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, robin.murphy@arm.com, devicetree@vger.kernel.org, Frank.Li@kernel.org, cix-kernel-upstream@cixtech.com, dmaengine@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v5 3/5] dt-bindings: dma: arm,dma-350: Document optional clocks and resets Message-ID: References: <20261104124411.296640-1-Jelly.Jia@cixtech.com> <20261104124411.296640-4-Jelly.Jia@cixtech.com> X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: TY2PEPF0000AB88:EE_|SEZPR06MB5455:EE_ X-MS-Office365-Filtering-Correlation-Id: 6238d206-691b-45bb-045f-08df3b18bfae X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|82310400026|36860700016|7416014|376014|23010399003|10067099003|22082099003|18002099003|4143699003|56012099006|261028144727099003|261022105027099003|261026140227099003; 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X-Spam-Score: 0.0 (/) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" X-Spam-Status: No, score=-3.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_EF,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 Hi Frank, > Suppose you should add front compatible string and fall back to arm,dma-350 > > and use front compatible at if branch to restrict clocks and resets. Thanks. I've updated the binding locally as follows: compatible: oneOf: - const: arm,dma-350 - items: - const: cix,sky1-dma350 - const: arm,dma-350 and added this condition under allOf: - if: properties: compatible: contains: const: cix,sky1-dma350 then: required: - clocks This requires a clock for Sky1, while resets remain optional. Both resources remain optional for the generic compatible alone. Both FCH and AUDSS DMA nodes now use the CIX compatible with the generic fallback. The driver's optional clock/reset helpers remain unchanged. I've tested the updated tree on Sky1 and will include these changes in the next revision. Best regards, Jelly