linux-kernel - Re: [PATCH v6 1/6] FROMLIST: arm64: dts: qcom: sc7180-trogdor: Split out keyboard node and describe detachables

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Message-ID: <CAD=FV=Wp=BMwkbXH+_cHyVP3_0Zh-KXO=N8Y7wg3SktEs7FEXQ@mail.gmail.com>
Date:   Fri, 17 Jun 2022 12:47:34 -0700
From:   Doug Anderson <dianders@...omium.org>
To:     "Joseph S. Barrera III" <joebar@...omium.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Stephen Boyd <swboyd@...omium.org>,
        Alexandru M Stan <amstan@...omium.org>,
        Benson Leung <bleung@...omium.org>,
        Guenter Roeck <groeck@...omium.org>,
        Hsin-Yi Wang <hsinyi@...omium.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>
Subject: Re: [PATCH v6 1/6] FROMLIST: arm64: dts: qcom: sc7180-trogdor: Split
 out keyboard node and describe detachables

Hi,

On Fri, Jun 17, 2022 at 11:12 AM Joseph S. Barrera III
<joebar@...omium.org> wrote:
>
> From: Stephen Boyd <swboyd@...omium.org>
>
> Trogdor devices that have a detachable keyboard still have a
> non-detachable keyboard input device present because we include the
> cros-ec-keyboard.dtsi snippet in the top-level sc7180-trogdor.dtsi file
> that every variant board includes. We do this because the
> keyboard-controller node also provides some buttons like the power
> button and volume buttons. Unfortunately, this means we register a
> keyboard input device that doesn't do anything on boards with a
> detachable keyboard.
>
> Change the node's compatible on detachables to the newly introduced
> "google,cros-ec-keyb-switches" compatible to indicate that there are
> only switches and no keyboard to register. Similarly, move the keyboard
> include that defines the keyboard-controller node out of
> sc7180-trogdor.dtsi to boards that actually have a keyboard so that the
> matrix properties are not defined on boards with the switches
> compatible. Future boards can either use the include approach or the
> node definition approach to describe a keyboard with possible switches
> or just some switches.
>
> Cc: Benson Leung <bleung@...omium.org>
> Cc: Guenter Roeck <groeck@...omium.org>
> Cc: Douglas Anderson <dianders@...omium.org>
> Cc: Hsin-Yi Wang <hsinyi@...omium.org>
> Cc: "Joseph S. Barrera III" <joebar@...omium.org>
> Signed-off-by: Stephen Boyd <swboyd@...omium.org>
> (am from https://lore.kernel.org/r/20220518172525.3319993-1-swboyd@chromium.org)
>
>      evtest shows no more cros_ec device
>
> Cq-Depend: chromium:3609017
> Tested-by: Stephen Boyd <swboyd@...omium.org>
> Reviewed-by: Douglas Anderson <dianders@...omium.org>
> Signed-off-by: Joseph S. Barrera III <joebar@...omium.org>

It's OK to re-post Stephen's patch with your series, but:

1. The subject shouldn't have FROMLIST. That's just for patches picked
back to a Chromium OS kernel.

2. You shouldn't have "(am from...)". Again, just for patches picked
back to a Chromium OS kernel.

3. No Cq-Depend. That's something for patches picked back to a
Chromium OS kernel.

4. You should remove tags that were added by the Chromium review
system, like Stephen's "Tested-by" and my "Reviewed-by".


Another alternative is to not post Stephen's patch but add a note that
your patch should be applied atop his, then point to his. AKA:

https://lore.kernel.org/r/20220518172525.3319993-1-swboyd@chromium.org

-Doug