linux-kernel - Re: [PATCH] Revert "of: property: fw_devlink: Add support for remote-endpoint"

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Date:   Tue, 28 Sep 2021 09:37:36 -0700
From:   Saravana Kannan <saravanak@...gle.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Stephen Boyd <sboyd@...nel.org>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>
Subject: Re: [PATCH] Revert "of: property: fw_devlink: Add support for remote-endpoint"

On Tue, Sep 28, 2021 at 5:30 AM Greg Kroah-Hartman
<gregkh@...uxfoundation.org> wrote:
>
> On Mon, Sep 27, 2021 at 06:13:12PM -0700, Saravana Kannan wrote:
> > On Mon, Sep 27, 2021 at 5:56 PM Dmitry Baryshkov
> > > root@...m-armv8a:~# ls -l /sys/bus/platform/devices/88e9000.phy/
> > > lrwxrwxrwx    1 root     root             0 Aug  4 15:13
> > > consumer:platform:a600000.usb ->
> > > ../../../virtual/devlink/platform:88e9000.phy--platform:a600000.usb
> > > lrwxrwxrwx    1 root     root             0 Aug  4 15:13
> > > consumer:platform:af00000.clock-controller ->
> > > ../../../virtual/devlink/platform:88e9000.phy--platform:af00000.clock-controller
> > > -rw-r--r--    1 root     root          4096 Aug  4 15:13 driver_override
> > > -r--r--r--    1 root     root          4096 Aug  4 15:13 modalias
> > > lrwxrwxrwx    1 root     root             0 Aug  4 15:13 of_node ->
> > > ../../../../firmware/devicetree/base/soc@...hy@...9000
> > > drwxr-xr-x    2 root     root             0 Aug  4 15:13 power
> > > lrwxrwxrwx    1 root     root             0 Aug  4 15:10 subsystem ->
> > > ../../../../bus/platform
> > > lrwxrwxrwx    1 root     root             0 Aug  4 15:13
> > > supplier:platform:100000.clock-controller ->
> > > ../../../virtual/devlink/platform:100000.clock-controller--platform:88e9000.phy
> > > lrwxrwxrwx    1 root     root             0 Aug  4 15:13
> > > supplier:platform:18200000.rsc:clock-controller ->
> > > ../../../virtual/devlink/platform:18200000.rsc:clock-controller--platform:88e9000.phy
> > > lrwxrwxrwx    1 root     root             0 Aug  4 15:13
> > > supplier:platform:18200000.rsc:pm8150-rpmh-regulators ->
> > > ../../../virtual/devlink/platform:18200000.rsc:pm8150-rpmh-regulators--platform:88e9000.phy
> > > -rw-r--r--    1 root     root          4096 Aug  4 15:10 uevent
> > > -r--r--r--    1 root     root          4096 Aug  4 15:13
> > > waiting_for_supplier
> > >
> > > Thus it is not possible to spot this device link without
> > > CONFIG_DEBUG_DRIVER=y (or any similar debugging technique).
> >
> > I sent out some patches to make this easier. But doesn't look like
> > it'll land in 5.15.
> > https://lore.kernel.org/lkml/20210915172808.620546-1-saravanak@google.com/
>
> I have now queued these up to make it into 5.15-final, this thread has
> convinced me :)

Thanks :)

-Saravana