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Mon, 13 Apr 2026 03:46:13 -0700 From: Akhil R To: CC: , , , , , , , , , , , , , , , , , , , , , , Subject: Re: [PATCH v2 13/13] arm64: defconfig: Enable I3C and SPD5118 hwmon Date: Mon, 13 Apr 2026 16:16:12 +0530 Message-ID: <20260413104613.51768-1-akhilrajeev@nvidia.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <3d199d1c-066f-4947-8956-c135fb9ba24e@kernel.org> References: <3d199d1c-066f-4947-8956-c135fb9ba24e@kernel.org> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CY4PEPF0000E9CD:EE_|PH8PR12MB7326:EE_ X-MS-Office365-Filtering-Correlation-Id: 46fedcad-a4df-4cbc-d334-08de9949f1f1 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700016|376014|82310400026|7416014|1800799024|13003099007|22082099003|56012099003|18002099003; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: MEwxe89WY7R4sSPcviIzCIpAuh1Qd66/DQN7tK7TIbWagKqlZgzHEAcgd2jK65Dh/GdehCY285XOWn4cf/RR7HdSkW5M1rf2q5lb/jA/7TrWahrQN8oXzwIZtuZVBuSv3jdrLUy6eLaH1PKBDI+53IIh2XJq2IOf8rBKfFKZMshoZiFaG09D2MrgDe25w2/6IZLA7UlBcE/pyCbV7BTuJQzWtmxTaji3waP+b/PoTGpDXVLq4QCQr34hXcCACT5shBBcW2KtkxYUwtu20XH+u07H/n2mXkHdsE7dqhHWtnL/4ocoWZEaquVMtCw5a/byZcdhNnPVA7YGRF+LBAE3bLyESG9uCjdGosDIqgb3FPEZbEFrZOSYJUuuo4MJFc65elfv9Yb11UlQzJvMVCjy9y4gEXWdjX24ON15//v8bCiKAECGkPufMU5utbVHyH9G X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Apr 2026 10:46:40.2940 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 46fedcad-a4df-4cbc-d334-08de9949f1f1 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CY4PEPF0000E9CD.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH8PR12MB7326 On Mon, 13 Apr 2026 09:12:18 +0200, Krzysztof Kozlowski wrote: > On 13/04/2026 08:57, Akhil R wrote: >>>> Isn't I3C needed for SPD5118. Otherwise I understand even less from this >>>> rationale - why I3C is being enabled here? >>>> >>>> And before author asks what do I want to here: no, it is author's job to >>>> convince me to accept I3C in defconfig. Not mine. >>> >>> BTW, all this was asked at v1 and author did not improve the commit msg >>> beside giving quite broad/unspecific "Vera". >> >> If I am not wrong, the ask in v1 was to specify the product which this is >> getting used - 'Vera' it is. I do not know why you would think it is >> unspecific. > > I already said why. Because I Googled it and Google told me it can be > "architecture". And no, you do not use SPD5118 on architecture. Vera is the CPU and it uses SOCAMM LPDDR5, which has an SPD5118 within. I will write this down in the next version. > >> >> As Thierry and Guenter mentioned, the lack of policy and 'mix of both' in >> the defconfig makes it quite difficult to understand what could genuinely >> be convincing other than putting down every little detail or do a trial >> and error. > > I think the main problem is that people forgot that commits must answer > WHY you are doing this. Now my assumption is that people sending > defconfigs do not understand why they are doing it, therefore they > cannot explain "why" in commit msg. > > Look, find me in following nvidia patches any answers to why this change > is needed: > > https://lore.kernel.org/all/20260409131340.168556-7-pshete@nvidia.com/ > https://lore.kernel.org/all/20240829134252.49661-1-jonathanh@nvidia.com/ > https://lore.kernel.org/all/20240509215808.126217-1-bwicaksono@nvidia.com/ > > I understand that I can clarify what sort of answers to "why?" I expect. > but lack of such clarification is not excuse to not provide ANY > explanation in commit msg. > > Basically it is logic like: > "Uh, I don't how to explain this change, why do we need it, why is it > good, why am I doing that...anyway, let's send it!" > > Why doing something in the first place if one does not know the reason > behind? The answer I wrote to "why" is that "it is required to support the SOCAMM in Vera". But I may have overlooked the ambiguity of the details of Vera available online. I will make it more descriptive. Regards, Akhil