linux-kernel - Re: [PATCH 1/2] dt-bindings: watchdog: Modify tesla fsd bindings

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Message-ID: <726456a1-e6ff-47dd-aeab-434fa43ef1f6@kernel.org>
Date: Fri, 29 Aug 2025 16:12:40 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Varada Pavani <v.pavani@...sung.com>, s.nawrocki@...sung.com,
 cw00.choi@...sung.com, alim.akhtar@...sung.com, mturquette@...libre.com,
 sboyd@...nel.org, linux-samsung-soc@...r.kernel.org,
 linux-clk@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-kernel@...r.kernel.org
Cc: aswani.reddy@...sung.com, gost.dev@...sung.com
Subject: Re: [PATCH 1/2] dt-bindings: watchdog: Modify tesla fsd bindings

On 29/08/2025 15:56, Varada Pavani wrote:
> FSD SoC WDT is using Samsung legacy WDT driver with
> "samsung,exynos7-wdt" compatibility. Now change the compatibility due to
> few driver changes (PMU bit changes for each WDT instance and Clocks)
> for WDT found in FSD SoC.

Eh, no, this does not work like that. FSD SoC was released like 8 years
ago, so how hardware can change now?

You cannot claim ABI needs changes because your driver does something,
it's just misinterpretation of bindings.

Please read writing bindings. DTS was added recently, in 2022, but 3
years is long enough to test it, so I must assume this was tested.

Otherwise you need to REALLY carefully explain that.

Best regards,
Krzysztof