linux-kernel - Re: [PATCH 1/1] dt-bindings: touchscreen: move ar1021.txt to maxim,max11801.yaml

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Message-ID: <20250925-swimming-overspend-ddf7ab4a252c@spud>
Date: Thu, 25 Sep 2025 20:46:38 +0100
From: Conor Dooley <conor@...nel.org>
To: Frank Li <Frank.li@....com>
Cc: Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	"open list:INPUT (KEYBOARD, MOUSE, JOYSTICK, TOUCHSCREEN)..." <linux-input@...r.kernel.org>,
	"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" <devicetree@...r.kernel.org>,
	open list <linux-kernel@...r.kernel.org>, imx@...ts.linux.dev
Subject: Re: [PATCH 1/1] dt-bindings: touchscreen: move ar1021.txt to
 maxim,max11801.yaml

On Thu, Sep 25, 2025 at 03:28:56PM -0400, Frank Li wrote:
> On Thu, Sep 25, 2025 at 08:20:02PM +0100, Conor Dooley wrote:
> > On Thu, Sep 25, 2025 at 02:56:47PM -0400, Frank Li wrote:
> > > ar1021 have only reg and interrupts property beside touch common
> > > properties. So move context of ar1021.txt into maxim,max11801.yaml.
> >
> > Are these devices even remotely related, other than both being touch
> > devices?
> 
> No, just properties is the same. There are many binding files, which bundle
> similar properties's yaml to one file.
> 
> we may create trivial-touch.yaml, which similar with trivial-rtc.yaml.

I think putting trivial devices that are completely unrelated into one
file is confusing. It makes it seem like these devices are similar in
programming model etc.
Merging them into a explicitly designated trivial-touch binding would be
an improvement, if there are lots of very similar devices that could
also be merged in together.

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