linux-kernel - Re: [PATCH] arm64: dts: renesas: ulcb-kf: document a problemw with old firmware

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Message-ID: <ZbtlJ-7UCPxgUXeS@ninjato>
Date: Thu, 1 Feb 2024 10:32:23 +0100
From: Wolfram Sang <wsa+renesas@...g-engineering.com>
To: Geert Uytterhoeven <geert@...ux-m68k.org>
Cc: linux-renesas-soc@...r.kernel.org, Magnus Damm <magnus.damm@...il.com>,
	Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: renesas: ulcb-kf: document a problemw with
 old firmware

Hi Geert,

> I'd rather not add such comments (especially +6y after the fact), as
> this is the standard operating procedure in case something doesn't work.

Okay, can be argued.

> /* If secondary CPUs don't work, please update your firmware */
> /* If cpuidle crashes, please update your firmware */
> /* If watchdog restart doesn't work, please update your firmware */
> /* If PSCI reboot doesn't work, please update your firmware */

Actually, I wouldn't mind. It documents that we *know* updating firmware
helps in this particular case. But as said, I can see your point as
well. Let's drop this patch.

Happy hacking,

   Wolfram


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