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Sat, 10 Oct 2026 10:23:29 +0000 Received: from ubuntu (unknown [172.20.64.99]) by smtprelay.cixcomputing.com (Postfix) with ESMTPSA id A8947427E3A0; Sat, 10 Oct 2026 18:23:28 +0800 (CST) Date: Sat, 10 Oct 2026 18:23:27 +0800 From: Jelly Jia To: Conor Dooley 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 v2 4/6] dt-bindings: dma: arm,dma-350: Document the CIX Sky1 integration Message-ID: References: <20260907033404.596839-1-Jelly.Jia@cixtech.com> <20261009051846.1115962-1-Jelly.Jia@cixtech.com> <20261009051846.1115962-5-Jelly.Jia@cixtech.com> <20261009-e284e1844269292657604ec7@squawk> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261009-e284e1844269292657604ec7@squawk> X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SG2PEPF000B66C9:EE_|KL1PR06MB6346:EE_ X-MS-Office365-Filtering-Correlation-Id: e3a154ad-727e-448d-8458-08df26b88768 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|23010399003|36860700016|1800799024|376014|7416014|18002099003|22082099003|10067099003|3023799007|4143699003|56012099006; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: /m9EHuf8m6T7cwjfzcLozRdWYgzw/ruxBIKj78kX6wjcJbLCct0vBY5BZF7ibE0CryxhDN7nUw0zVZ8PTkjnRA55bmLjndi23Ak2qkZJQ/ZdP4x/7Rbl4SeokT34OVFLCVAptBS1aHyUc0D9yEM8QGUns72yigctYmEpg7fTC4noYOtNTVNu7WniTZLeCmcpmQicDt1i/84aql7OlZLZSRVl8vWz8hRPKxtIwnWJnDGO7pe+Q8Jf0XHi5QwsOgF3h+KOjOju1EfsjjnUUfcN6QowFq2ETTc8Ty1MG7hcc1g5cgdq5nyD0DeG1WZqOxx+pM1nWy00BO18DwpZJG5hr+pKE7UyJwunsoS7SPN2MTOpYnUQUT5hYQgE0mhS8nddg3nLk4+2VZc1NSzJ22+RhuB5Q/APS+HFhh408YT8UIE+n7elzv8pvVeoQZ96q7D7 X-OriginatorOrg: cixtech.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Oct 2026 10:23:29.5833 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: e3a154ad-727e-448d-8458-08df26b88768 X-MS-Exchange-CrossTenant-Id: 0409f77a-e53d-4d23-943e-ccade7cb4811 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=0409f77a-e53d-4d23-943e-ccade7cb4811;Ip=[222.71.101.198];Helo=[smtprelay.cixcomputing.com] X-MS-Exchange-CrossTenant-AuthSource: SG2PEPF000B66C9.apcprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: KL1PR06MB6346 On Fri, Oct 09, 2026 at 04:31:26PM +0100, Conor Dooley wrote: > > + cix,irq-router: > > + $ref: /schemas/types.yaml#/definitions/phandle > > + description: > > + Syscon phandle for the CIX Sky1 subsystem register block that routes > > + DMA-350 channel interrupts to the AP interrupt controller. > > See comments on the driver for more on this, but I'm not convinced that > this should be in this node - especially if this thing controls other > device's routing too. > > Thanks, > Conor. Agreed - v3 drops cix,irq-router from the binding completely. We plan to handle the interrupt gate as firmware/pre-Linux platform setup for v3, so the DMA node should not describe it. With the property gone, the CIX-specific conditional in allOf goes away as well, and the binding is back to the generic controller properties plus the CIX compatible. The corresponding driver changes are in my reply on the driver patch. Best regards, Jelly