Hi, On Mon, 25 Oct 2021 21:42:12 +1000 Alistair Francis <alistair@xxxxxxxxxxxxx> wrote: > From: Mylène Josserand <mylene.josserand@xxxxxxxxxxxxxxxxxx> > > Add the Cypress TrueTouch Generation 5 touchscreen device tree bindings > documentation. It can use I2C or SPI bus. > This touchscreen can handle some defined zone that are designed and > sent as button. To be able to customize the keycode sent, the > "linux,code" property in a "button" sub-node can be used. > > Signed-off-by: Mylène Josserand <mylene.josserand@xxxxxxxxxxxxxxxxxx> > Message-Id: <20170529144538.29187-3-mylene.josserand@xxxxxxxxxxxxxxxxxx> > Signed-off-by: Alistair Francis <alistair@xxxxxxxxxxxxx> > --- > .../input/touchscreen/cypress,cyttsp5.yaml | 72 +++++++++++++++++++ > 1 file changed, 72 insertions(+) > create mode 100644 Documentation/devicetree/bindings/input/touchscreen/cypress,cyttsp5.yaml > > diff --git a/Documentation/devicetree/bindings/input/touchscreen/cypress,cyttsp5.yaml b/Documentation/devicetree/bindings/input/touchscreen/cypress,cyttsp5.yaml > new file mode 100644 > index 000000000000..0bddbd76a0c3 > --- /dev/null > +++ b/Documentation/devicetree/bindings/input/touchscreen/cypress,cyttsp5.yaml > @@ -0,0 +1,72 @@ > +# SPDX-License-Identifier: GPL-2.0-only > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/input/touchscreen/cypress,cyttsp5.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Cypress cyttsp touchscreen controller, generation 5 > + > +maintainers: > + - Alistair Francis <alistair@xxxxxxxxxxxxx> > + > +allOf: > + - $ref: touchscreen.yaml# > + > +properties: > + compatible: > + const: cypress,cyttsp5 > + you use buttons later, so it should be specified somewhere here. > + reg: > + maxItems: 1 > + > + interrupts: > + maxItems: 1 > + > + vdd-supply: > + description: Regulator for voltage. > + > + reset-gpios: > + maxItems: 1 > + > + linux,code: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: EV_ABS specific event code generated by the axis. > + > +required: > + - compatible > + - reg > + - interrupts > + - vdd-supply > + > +additionalProperties: false If you want to allow things from touchscreen.yaml, you should use unevaluatedProperties: false. > + > +examples: > + - | some includes are missing for the constants below here. > + i2c { Regards, Andreas