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Mon, 23 Mar 2026 12:14:02 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 222.71.101.198) smtp.mailfrom=cixtech.com; dkim=none (message not signed) header.d=none;dmarc=bestguesspass action=none header.from=cixtech.com; Received-SPF: Pass (protection.outlook.com: domain of cixtech.com designates 222.71.101.198 as permitted sender) receiver=protection.outlook.com; client-ip=222.71.101.198; helo=smtprelay.cixcomputing.com; pr=C Received: from smtprelay.cixcomputing.com (222.71.101.198) by SG2PEPF000B66CB.mail.protection.outlook.com (10.167.240.24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9723.19 via Frontend Transport; Mon, 23 Mar 2026 12:14:02 +0000 Received: from [172.20.96.43] (unknown [172.20.96.43]) by smtprelay.cixcomputing.com (Postfix) with ESMTPSA id C6C5040F0506; Mon, 23 Mar 2026 20:14:00 +0800 (CST) Message-ID: <53011077-f3e5-44cc-914d-ec5c0cc47d34@cixtech.com> Date: Mon, 23 Mar 2026 20:14:00 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4 1/3] dt-bindings: dma: arm-dma350: document generic and combined IRQ topologies To: Krzysztof Kozlowski , peter.chen@cixtech.com, fugang.duan@cixtech.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, vkoul@kernel.org, ychuang3@nuvoton.com, schung@nuvoton.com, robin.murphy@arm.com, Frank.Li@kernel.org Cc: dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, cix-kernel-upstream@cixtech.com, linux-arm-kernel@lists.infradead.org References: <20260323114822.1925869-1-jun.guo@cixtech.com> <20260323114822.1925869-2-jun.guo@cixtech.com> <64836645-7c54-44bd-a21f-b02e684d3863@kernel.org> Content-Language: en-US From: Jun Guo In-Reply-To: <64836645-7c54-44bd-a21f-b02e684d3863@kernel.org> Content-Type: text/plain; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: zQI7zD4ywQIXtoMvT0Rurq5wofWaxskKJvSCGJ7hyJ/nAV4ldve6dGiJoi+hC33XDyRTk1tFmerSmovU1u5mrr5aDjUnXn24KKcgIW/2u5IKagTJD7DAs+o9UL3hmrDqRRrqYlG8Ouu+4e5P6s32Vza68SGXx1P4UT1aPaJYRMwTaFyWsuaZGuHvZIyVG3r6PJgRoyVE1ZvDPaJEaFfcHypLj+vzPgjFoKPQhezbKQDcOdkss6ULulXx0RlOKRr4efYf4g6MuYSANAj8N/CWmiLUb84gFARV/oFheYBrAD8il4SzqNHtg4GsAyPoz4xTx6sGXIax9e+PtqdNMAjMYNdV5yyhfTN/Gd9m5zhN9GRcr4HXJ7NWgLyYAO5RydzsK4NnEYcz5uUPyW7/CcoP+2Xaaqf8xbQlFoALmGhXkeO+PZjokwU5yDokNexRI18Q X-OriginatorOrg: cixtech.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 Mar 2026 12:14:02.0770 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: b4042234-753e-4afe-1d3d-08de88d5aba8 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: SG2PEPF000B66CB.apcprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: OSQPR06MB7183 On 3/23/2026 8:00 PM, Krzysztof Kozlowski wrote: > EXTERNAL EMAIL > > On 23/03/2026 12:48, Jun Guo wrote: >> Update the DMA-350 DT binding to match the current driver behavior. >> >> Allow both: >> - "arm,dma-350" as the generic compatible, and >> - "cix,sky1-dma-350", "arm,dma-350" for SoC-specific fallback usage. >> >> Also document interrupt topology variants supported by hardware >> integration: >> - one combined interrupt for all channels, or >> - one interrupt per channel (up to 8 channels). >> >> Assisted-by: Cursor: GPT-5.3-Codex > > There is no space here. Read the docs, I quite insisted on this last > time. If you make mistakes in this, I doubt you read the docs thus I > doubt you followed the requirements - have actual rights to send it for > example. Sorry, I did overlook the format between AGENT_NAME and MODEL_VERSION. I will fix it. > >> Signed-off-by: Jun Guo >> --- >> .../devicetree/bindings/dma/arm,dma-350.yaml | 34 +++++++++++++------ >> 1 file changed, 24 insertions(+), 10 deletions(-) >> >> diff --git a/Documentation/devicetree/bindings/dma/arm,dma-350.yaml b/Documentation/devicetree/bindings/dma/arm,dma-350.yaml >> index 429f682f15d8..47091614d1b4 100644 >> --- a/Documentation/devicetree/bindings/dma/arm,dma-350.yaml >> +++ b/Documentation/devicetree/bindings/dma/arm,dma-350.yaml >> @@ -14,7 +14,14 @@ allOf: >> >> properties: >> compatible: >> - const: arm,dma-350 >> + description: >> + Use "arm,dma-350" for generic integration. A SoC-specific >> + compatible may be listed first, followed by "arm,dma-350". > > What is the point of explaining it? What is the difference between > generic integration and non-generic? I might not need to add the "cix,sky1-dma-350" and can directly use "arm,dma-350" instead. I will rework the code and description accordingly. Best regards, Jun