linux-kernel - Re: [PATCH] ARM: dts: imx6qdl-hummingboard: Add rtc0 and rtc1 aliases to fix hctosys

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Date: Mon, 29 Jan 2024 22:07:37 +0000
From: "Russell King (Oracle)" <linux@...linux.org.uk>
To: Josua Mayer <josua@...id-run.com>
Cc: Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	NXP Linux Team <linux-imx@....com>,
	Yazan Shhady <yazan.shhady@...id-run.com>,
	Jon Nettleton <jon@...id-run.com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ARM: dts: imx6qdl-hummingboard: Add rtc0 and rtc1
 aliases to fix hctosys

On Mon, Jan 29, 2024 at 07:26:07PM +0000, Josua Mayer wrote:
> I have tried reproducing this on 6.7.0 with imx_v6_v7_defconfig:
> I use expect [1] to capture kernel rtc messages during boot,
> explicitly overwrite load capacitance bit to ensure
> regmap_update_bits in pcf8523_load_capacitance has work
> to do during next probe, and finally trigger software reboot.
> 
> On HummingBoard-2 I  have not seen the issue during 80
> reboot cycles, and on solidsense not seen during 25 cycles.

I think at this point we should put it down to something spurious,
or maybe it was specific to having run an older kernel, or something.

Unless it can be reproduced, I don't see much point in spending more
time on it - I haven't noticed it happening again recently.

That said, I tend not to reboot this platform very often!

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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