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References: <CGME20210205222651eucas1p28ef87073dea33c1c5224c14aa203bec5@eucas1p2.samsung.com>
 <20210205222644.2357303-1-saravanak@google.com> <7b486072-453d-a344-bdfc-dec58a35c8f5@samsung.com>
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From:   Saravana Kannan <saravanak@google.com>
Date:   Mon, 8 Feb 2021 15:57:13 -0800
Message-ID: <CAGETcx9fpiy02+2_kRvtWos1usqA3gtCXqULsN906o70VKVGYA@mail.gmail.com>
Subject: Re: [PATCH v4 0/8] Make fw_devlink=on more forgiving
To:     Marek Szyprowski <m.szyprowski@samsung.com>
Cc:     Jonathan Corbet <corbet@lwn.net>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        "Rafael J. Wysocki" <rafael@kernel.org>,
        Kevin Hilman <khilman@kernel.org>,
        Ulf Hansson <ulf.hansson@linaro.org>,
        Len Brown <len.brown@intel.com>, Len Brown <lenb@kernel.org>,
        Pavel Machek <pavel@ucw.cz>,
        Michael Turquette <mturquette@baylibre.com>,
        Stephen Boyd <sboyd@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Frank Rowand <frowand.list@gmail.com>,
        Marc Zyngier <maz@kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Linux Doc Mailing List <linux-doc@vger.kernel.org>,
        LKML <linux-kernel@vger.kernel.org>,
        Linux PM <linux-pm@vger.kernel.org>,
        linux-clk <linux-clk@vger.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@vger.kernel.org>,
        ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
        Geert Uytterhoeven <geert@linux-m68k.org>,
        Android Kernel Team <kernel-team@android.com>
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On Mon, Feb 8, 2021 at 12:40 AM Marek Szyprowski
<m.szyprowski@samsung.com> wrote:
>
> Hi Saravana,
>
> On 05.02.2021 23:26, Saravana Kannan wrote:
> > There are a lot of devices/drivers where they never have a struct device
> > created for them or the driver initializes the hardware without ever
> > binding to the struct device.
> >
> > This series is intended to avoid any boot regressions due to such
> > devices/drivers when fw_devlink=on and also address the handling of
> > optional suppliers.
> >
> > Patch 1 and 2 addresses the issue of firmware nodes that look like
> > they'll have struct devices created for them, but will never actually
> > have struct devices added for them. For example, DT nodes with a
> > compatible property that don't have devices added for them.
> >
> > Patch 3 and 4 allow for handling optional DT bindings.
> >
> > Patch 5 sets up a generic API to handle drivers that never bind with
> > their devices.
> >
> > Patch 6 through 8 update different frameworks to use the new API.
>
> This patchset fixes probing issue observed on various Exynos based
> boards even with commit c09a3e6c97f0 ("soc: samsung: pm_domains: Convert
> to regular platform driver") reverted. Thanks!
>
> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
>

Thanks for testing!

-Saravana