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Wed, 11 Mar 2026 20:08:37 +0800 (CST) Date: Wed, 11 Mar 2026 20:08:36 +0800 From: Zichar Zhang To: Linus Walleij Cc: brgl@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, peter.chen@cixtech.com, fugang.duan@cixtech.com, jank@cadence.com, cix-kernel-upstream@cixtech.com, linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH 1/2] dt-bindings: gpio: cdns: add clock-names property Message-ID: References: <20260306093238.2715269-1-zichar.zhang@cixtech.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: OSA0EPF000000CB:EE_|KL1PR06MB6580:EE_ X-MS-Office365-Filtering-Correlation-Id: 3b3c7288-70e8-4106-de7f-08de7f66eddb X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|7416014|376014|36860700016|1800799024|22082099003|56012099003|18002099003; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: HbiiV0aSISSIrX/+fymGKXyGCLz4qT5Z4yaGF+xN75f0E/XPIzAVmw3gWGZbYwUJWgntucnKSl2HokEvY0lDiPOqF0cLl84dH75ulVBmAgdJ/5cdfV06nAO9tz4tIDakFK6Ai9PZVhZ1bRo3u2OTdqJrFBVNRsGHiiKLiaDEVa10Pk3yrdoF1nnuNqrFqiisSEqhrvOXYvEUgL67mPSmNqWOdWKXcIaBGQ+3+X7JLCw9rTEu8l5Yuoc3q4zBpJnFQpwOoAen2rRtgRqmgJzVM9bPJtqmoug/g1PTtV7uYFxUps0F1fLUQFBnjZx08K8KuKeQiTm4K/IOvWRZ/P5fnFetZEmJDtGMFAngncLsT49rLf8FYby6qeEV258W0EQMmZ2Th9HwcqBWrRRmnEDDaGjWk1IPBoIXFjPFJC1thTxMPbppJOZdJAEMlUFY6zbR X-OriginatorOrg: cixtech.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 11 Mar 2026 12:08:38.3024 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 3b3c7288-70e8-4106-de7f-08de7f66eddb 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: OSA0EPF000000CB.apcprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: KL1PR06MB6580 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260311_050853_097758_5BF7AB96 X-CRM114-Status: GOOD ( 16.33 ) X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, Mar 06, 2026 at 11:10:35AM +0100, Linus Walleij wrote: > [You don't often get email from linusw@kernel.org. Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ] > > EXTERNAL EMAIL > > Hi Zichar, > > On Fri, Mar 6, 2026 at 10:32 AM Zichar Zhang wrote: > > > + clock-names: > > + description: > > + Optional name for the GPIO controller input clock. > > + minItems: 1 > > + maxItems: 1 > > I think clock-names: true should suffice, but the binding maintainers > can say how > they want it. > > I would suggest to also add: > > gpio-ranges: > minItems: 1 > maxItems: 32 > > At this point even if you're not using it FTM. This will make it > possible to later > map the GPIOs to the pin controller and control pin configuration from the > GPIO subsystem. Thanks. Given that cdns,gpio.yaml already defines "ngpios", would it make sense to use it for the "gpio-ranges" definition? Best regards, Zichar Zhang