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Tue, 2 Jun 2026 01:30:42 -0500 Received: from [172.24.233.254] (santhoshkumark.dhcp.ti.com [172.24.233.254]) by lelvem-mr06.itg.ti.com (8.18.1/8.18.1) with ESMTP id 6526Ub3j2665621; Tue, 2 Jun 2026 01:30:37 -0500 Message-ID: <4a570d36-dda6-4f3d-9c16-d3e57ac55f1c@ti.com> Date: Tue, 2 Jun 2026 12:00:36 +0530 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 02/13] spi: dt-bindings: cdns,qspi-nor: add PHY tuning pattern partition property To: Krzysztof Kozlowski CC: , , , , , , , , , , , , , , , , , References: <20260527175527.2247679-1-s-k6@ti.com> <20260527175527.2247679-3-s-k6@ti.com> <20260530-original-peccary-of-cubism-af68ed@quoll> <2f091813-fa28-407f-892d-bbbbe3cac4e4@ti.com> <063fe976-9a28-4670-90df-921fbc1c3a8c@kernel.org> <20260601-stirring-tested-mayfly-e97c14@quoll> Content-Language: en-US From: Santhosh Kumar K In-Reply-To: <20260601-stirring-tested-mayfly-e97c14@quoll> Content-Type: text/plain; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: /DSPLaJY/5KYuZF+cdScMQyJfWZphFUPVIO+Y8Z2rD0vYEzR59tBzecpxekeQJnJqzrJy6FhKK915+ijJipOD1a5e7mWWHJCVnuydpcIbyzvJdRtsFWy0g9DMjk2lFefLpRvZndjfLls2nZpXVC4jXeIAtauDJXKuagaMRIG5dWFfShMbWJkj6RKffSL9+nSQ81FMkNU9mqFcmK8v38T4N1zpdl9XCqVf5DPBTgbT+lGhqIvCr2zCccVcJCj9cu4kmCcE3g0m/5SfGEEk5EC+SI0CKBmFHTRm+deEQ8X6XSJoJhEVHOm58fcr/++NkBlA3pf26PT5WKl4syaZpveKpA4CWxl4laN8EwF+Yl+H7sqdpjfmZAgrxbn7tGu2Jm1UdUuE8uVb5PENK9l/H1T6m6215/AwLCOvyGHYV9OwQdZ/S583GDoFLWx3w4F5vg6 X-OriginatorOrg: ti.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 02 Jun 2026 06:30:43.1736 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 96916397-fad0-43d4-314b-08dec070790a X-MS-Exchange-CrossTenant-Id: e5b49634-450b-4709-8abb-1e2b19b982b7 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=e5b49634-450b-4709-8abb-1e2b19b982b7;Ip=[198.47.23.195];Helo=[lewvzet201.ext.ti.com] X-MS-Exchange-CrossTenant-AuthSource: CH3PEPF00000009.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR10MB4121 On 01/06/26 17:17, Krzysztof Kozlowski wrote: > On Mon, Jun 01, 2026 at 01:26:27PM +0200, Krzysztof Kozlowski wrote: > >> >>>> This should be used in any of applicable examples. >>> >>> Please refer to the DT changes included in the repository linked in the >>> cover letter, which should provide a clearer picture of how this >>> property is intended to be used. [0] >>> >>> I'll also add a DT binding example in the next version to make the usage >>> more explicit. >> >> Why do you new a new example? Why existing examples are not applicable? > > typo: "Why do you need a new example?" No, I wasn't planning to add a new example. I'll extend one of the existing binding examples. > >> >>> >>>> >>>> I also have doubts that this is per-device property. Your commit msg >>>> suggests it is per controller. >>> >>> This is a per-device property. It is consumed by the controller driver >>> only to locate and retrieve the offset of the PHY pattern partition >> >> So with two devices on a bus, you need two separate partitions for tuning? Each SPI NOR flash device needs a partition to store PHY tuning pattern. Regards, Santhosh. > > Best regards, > Krzysztof >