linux-kernel - Re: [PATCH] arm64: dts: mt8183: juniper: Remove CrosEC base detection node

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Message-ID: <cfa39af2-936d-470e-93ea-adc2a632849f@notapiano>
Date: Fri, 12 Jan 2024 09:19:52 -0300
From: Nícolas F. R. A. Prado <nfraprado@...labora.com>
To: Chen-Yu Tsai <wenst@...omium.org>
Cc: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	Matthias Brugger <matthias.bgg@...il.com>, kernel@...labora.com,
	Conor Dooley <conor+dt@...nel.org>,
	Enric Balletbo i Serra <eballetbo@...nel.org>,
	Ikjoon Jang <ikjn@...omium.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Rob Herring <robh+dt@...nel.org>,
	Stephen Boyd <swboyd@...omium.org>, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH] arm64: dts: mt8183: juniper: Remove CrosEC base
 detection node

On Fri, Jan 12, 2024 at 03:10:12PM +0800, Chen-Yu Tsai wrote:
> On Fri, Jan 12, 2024 at 3:55 AM Nícolas F. R. A. Prado
> <nfraprado@...labora.com> wrote:
> >
> > The cbas node is used to describe base detection functionality in the
> > ChromeOS EC, which is used for units that have a detachable keyboard and
> > thus rely on this functionality to switch between tablet and laptop
> > mode.
> >
> > The juniper-sku16 machine is a convertible, meaning the keyboard can be
> > flipped but not detached. The detection for the keyboard getting
> > flipped is handled by the driver bound to the keyboard-controller
> > node in the EC.
> 
> We could do this for the whole jacuzzi family, which are all clamshell
> or convertibles.

Ah that's great info, thanks! I suspected so but since this unit was the only
one that I could actually test the change on, I decided to stick to it.

I'll send a v2 removing the node at the jacuzzi dtsi level then.

Thanks,
Nícolas