linux-kernel - Re: Raspberry Pi 4B: Failed to create device link with soc:firmware:gpio

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Message-ID: <CAGETcx-KLfxKae6-Kc74gOu2fiuu+5528j_TNEaY21U3_yZO0w@mail.gmail.com>
Date:   Sat, 25 Feb 2023 16:01:28 -0800
From:   Saravana Kannan <saravanak@...gle.com>
To:     Florian Fainelli <f.fainelli@...il.com>
Cc:     Stefan Wahren <stefan.wahren@...e.com>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        Linux Kernel <linux-kernel@...r.kernel.org>,
        Android Kernel Team <kernel-team@...roid.com>
Subject: Re: Raspberry Pi 4B: Failed to create device link with soc:firmware:gpio

On Sat, Feb 25, 2023 at 7:38 AM Florian Fainelli <f.fainelli@...il.com> wrote:
>
> Hi Saravana,
>
> Using v6.2-10217-ga93e884edf61v my Raspberry Pi 4B issues the following
> for the "extended GPIO" provider:
>
> [    5.969855] uart-pl011 fe201000.serial: Failed to create device link
> with soc:firmware:gpio

Outside of this error, is it actually breaking anything? Also, can you
pull in this patch and tell me what it says? I want to know what the
flags are.
https://lore.kernel.org/lkml/20230225064148.274376-1-saravanak@google.com/

Can you also change every pr_debug and dev_dbg in drivers/base/core.c
to an info and then give me the logs as an attachment?

> The kernel configuration I am using can be found here:
>
> https://gist.github.com/ffainelli/4eb83740c25b10f75b54560f8c8febb1
>
> And the DTS is arch/arm*/boot/dts/bcm2711-rpi-4-b.dts

Ah, is this yet another case of a DTS that's not upstream? Don't
worry, I'll still look at it as it might point to some existing
upstream issue too.

Thanks,
Saravana