linux-kernel - Re: [PATCH v4 0/2] Fix simple-bus issues with fw

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Date:   Wed, 6 Oct 2021 08:29:08 +0300
From:   Tony Lindgren <tony@...mide.com>
To:     Saravana Kannan <saravanak@...gle.com>
Cc:     Russell King <linux@...linux.org.uk>,
        Neil Armstrong <narmstrong@...libre.com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Magnus Damm <magnus.damm@...il.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Damien Le Moal <damien.lemoal@....com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>, kernel-team@...roid.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-oxnas@...ups.io, linux-renesas-soc@...r.kernel.org,
        linux-omap@...r.kernel.org, linux-riscv@...ts.infradead.org
Subject: Re: [PATCH v4 0/2] Fix simple-bus issues with fw_devlink

* Saravana Kannan <saravanak@...gle.com> [210929 03:08]:
> Ulf reported an issue[1] with fw_devlink. This series tries to fix that
> issue.
> 
> I replicated a similar set up on my end and I confirmed:
> - A simple-bus only device is probed.
> - Another device listing simple-bus as a 2nd compatible string isn't
>   probed.
> 
> v1->v2:
> - Switched to probing the simple-bus device instead of marking it as
>   NEVER_PROBES.
> 
> v2->v3:
> - Moved all the code into the simple-pm-bus driver
> - Addressed Ulf's comment about the remove() code missing a check.
> 
> v3->v4:
> - Added support for driver_override to accommodate the case where new
>   transparent bus compatible strings are added to DT, but the kernel hasn't
>   been updated yet.
> - Added/updated comments to give more details.
> - Adding Ulf's Tested-by that he have for v3 (v4 didn't change by much).

Works for me:

Tested-by: Tony Lindgren <tony@...mide.com>