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

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Message-ID: <aNWX+DxUOXlOvsmo@lizhi-Precision-Tower-5810>
Date: Thu, 25 Sep 2025 15:28:56 -0400
From: Frank Li <Frank.li@....com>
To: Conor Dooley <conor@...nel.org>
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 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.

Frank

>
> >
> > Signed-off-by: Frank Li <Frank.Li@....com>
> > ---
> >  .../bindings/input/touchscreen/ar1021.txt         | 15 ---------------
> >  .../input/touchscreen/maxim,max11801.yaml         |  4 +++-
> >  2 files changed, 3 insertions(+), 16 deletions(-)
> >  delete mode 100644 Documentation/devicetree/bindings/input/touchscreen/ar1021.txt
> >
> > diff --git a/Documentation/devicetree/bindings/input/touchscreen/ar1021.txt b/Documentation/devicetree/bindings/input/touchscreen/ar1021.txt
> > deleted file mode 100644
> > index 82019bd6094ee..0000000000000
> > --- a/Documentation/devicetree/bindings/input/touchscreen/ar1021.txt
> > +++ /dev/null
> > @@ -1,15 +0,0 @@
> > -* Microchip AR1020 and AR1021 touchscreen interface (I2C)
> > -
> > -Required properties:
> > -- compatible		: "microchip,ar1021-i2c"
> > -- reg			: I2C slave address
> > -- interrupts		: touch controller interrupt
> > -
> > -Example:
> > -
> > -	touchscreen@4d {
> > -		compatible = "microchip,ar1021-i2c";
> > -		reg = <0x4d>;
> > -		interrupt-parent = <&gpio3>;
> > -		interrupts = <11 IRQ_TYPE_LEVEL_HIGH>;
> > -	};
> > diff --git a/Documentation/devicetree/bindings/input/touchscreen/maxim,max11801.yaml b/Documentation/devicetree/bindings/input/touchscreen/maxim,max11801.yaml
> > index 4f528d2201992..288c7e6e1b3b7 100644
> > --- a/Documentation/devicetree/bindings/input/touchscreen/maxim,max11801.yaml
> > +++ b/Documentation/devicetree/bindings/input/touchscreen/maxim,max11801.yaml
> > @@ -11,7 +11,9 @@ maintainers:
> >
> >  properties:
> >    compatible:
> > -    const: maxim,max11801
> > +    enum:
> > +      - maxim,max11801
> > +      - microchip,ar1021-i2c
> >
> >    reg:
> >      maxItems: 1
> > --
> > 2.34.1
> >