[v4,3/5] dt-bindings: touchscreen: convert raspberrypi,firmware-ts bindings to json schema
Commit Message
Convert Raspberry Pi firmware 7" touchscreen controller device tree
binding to json-schema.
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
---
(no changes since v3)
Changes in v3:
- Drop firmware-rpi node and use only touchscreen node to fix warnings
you can see in
https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20250913092707.1005616-3-dario.binacchi@amarulasolutions.com/
Changes in v2:
- Added in v2
.../touchscreen/raspberrypi,firmware-ts.txt | 26 ------------
.../touchscreen/raspberrypi,firmware-ts.yaml | 40 +++++++++++++++++++
2 files changed, 40 insertions(+), 26 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/input/touchscreen/raspberrypi,firmware-ts.txt
create mode 100644 Documentation/devicetree/bindings/input/touchscreen/raspberrypi,firmware-ts.yaml
Comments
On Thu, Sep 18, 2025 at 10:10 PM Rob Herring <robh@kernel.org> wrote:
>
> On Thu, Sep 18, 2025 at 05:36:08PM +0200, Dario Binacchi wrote:
> > Convert Raspberry Pi firmware 7" touchscreen controller device tree
> > binding to json-schema.
> >
> > Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
> >
> > ---
> >
> > (no changes since v3)
> >
> > Changes in v3:
> > - Drop firmware-rpi node and use only touchscreen node to fix warnings
> > you can see in
> > https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20250913092707.1005616-3-dario.binacchi@amarulasolutions.com/
> >
> > Changes in v2:
> > - Added in v2
> >
> > .../touchscreen/raspberrypi,firmware-ts.txt | 26 ------------
> > .../touchscreen/raspberrypi,firmware-ts.yaml | 40 +++++++++++++++++++
> > 2 files changed, 40 insertions(+), 26 deletions(-)
> > delete mode 100644 Documentation/devicetree/bindings/input/touchscreen/raspberrypi,firmware-ts.txt
> > create mode 100644 Documentation/devicetree/bindings/input/touchscreen/raspberrypi,firmware-ts.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/input/touchscreen/raspberrypi,firmware-ts.txt b/Documentation/devicetree/bindings/input/touchscreen/raspberrypi,firmware-ts.txt
> > deleted file mode 100644
> > index 2a1af240ccc3..000000000000
> > --- a/Documentation/devicetree/bindings/input/touchscreen/raspberrypi,firmware-ts.txt
> > +++ /dev/null
> > @@ -1,26 +0,0 @@
> > -Raspberry Pi firmware based 7" touchscreen
> > -=====================================
> > -
> > -Required properties:
> > - - compatible: "raspberrypi,firmware-ts"
> > -
> > -Optional properties:
> > - - firmware: Reference to RPi's firmware device node
> > - - touchscreen-size-x: See touchscreen.txt
> > - - touchscreen-size-y: See touchscreen.txt
> > - - touchscreen-inverted-x: See touchscreen.txt
> > - - touchscreen-inverted-y: See touchscreen.txt
> > - - touchscreen-swapped-x-y: See touchscreen.txt
> > -
> > -Example:
> > -
> > -firmware: firmware-rpi {
> > - compatible = "raspberrypi,bcm2835-firmware";
> > - mboxes = <&mailbox>;
> > -
> > - ts: touchscreen {
> > - compatible = "raspberrypi,firmware-ts";
> > - touchscreen-size-x = <800>;
> > - touchscreen-size-y = <480>;
> > - };
> > -};
> > diff --git a/Documentation/devicetree/bindings/input/touchscreen/raspberrypi,firmware-ts.yaml b/Documentation/devicetree/bindings/input/touchscreen/raspberrypi,firmware-ts.yaml
> > new file mode 100644
> > index 000000000000..697c508326b3
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/input/touchscreen/raspberrypi,firmware-ts.yaml
> > @@ -0,0 +1,40 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/input/touchscreen/raspberrypi,firmware-ts.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Raspberry Pi firmware based 7" touchscreen
> > +
> > +maintainers:
> > + - Dario Binacchi <dario.binacchi@amarulasolutions.com>
> > +
> > +allOf:
> > + - $ref: touchscreen.yaml#
> > +
> > +properties:
> > + compatible:
> > + enum:
> > + - raspberrypi,firmware-ts
> > +
> > + firmware:
> > + description: Phandle to RPi's firmware device node.
>
> deprecated: true
>
> It should be a child node.
Should I add the touchscreen node to
Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml
and remove Documentation/devicetree/bindings/input/touchscreen/raspberrypi,firmware-ts.yaml
from this patch?
Thanks and regards,
Dario
>
> > +
> > + touchscreen-size-x: true
> > + touchscreen-size-y: true
> > + touchscreen-inverted-x: true
> > + touchscreen-inverted-y: true
> > + touchscreen-swapped-x-y: true
> > +
> > +additionalProperties: false
> > +
> > +required:
> > + - compatible
> > +
> > +examples:
> > + - |
> > + touchscreen {
> > + compatible = "raspberrypi,firmware-ts";
> > + touchscreen-size-x = <800>;
> > + touchscreen-size-y = <480>;
> > + };
> > --
> > 2.43.0
> >
> > base-commit: 8b789f2b7602a818e7c7488c74414fae21392b63
> > branch: drop-touchscreen.txt
deleted file mode 100644
@@ -1,26 +0,0 @@
-Raspberry Pi firmware based 7" touchscreen
-=====================================
-
-Required properties:
- - compatible: "raspberrypi,firmware-ts"
-
-Optional properties:
- - firmware: Reference to RPi's firmware device node
- - touchscreen-size-x: See touchscreen.txt
- - touchscreen-size-y: See touchscreen.txt
- - touchscreen-inverted-x: See touchscreen.txt
- - touchscreen-inverted-y: See touchscreen.txt
- - touchscreen-swapped-x-y: See touchscreen.txt
-
-Example:
-
-firmware: firmware-rpi {
- compatible = "raspberrypi,bcm2835-firmware";
- mboxes = <&mailbox>;
-
- ts: touchscreen {
- compatible = "raspberrypi,firmware-ts";
- touchscreen-size-x = <800>;
- touchscreen-size-y = <480>;
- };
-};
new file mode 100644
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/raspberrypi,firmware-ts.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Raspberry Pi firmware based 7" touchscreen
+
+maintainers:
+ - Dario Binacchi <dario.binacchi@amarulasolutions.com>
+
+allOf:
+ - $ref: touchscreen.yaml#
+
+properties:
+ compatible:
+ enum:
+ - raspberrypi,firmware-ts
+
+ firmware:
+ description: Phandle to RPi's firmware device node.
+
+ touchscreen-size-x: true
+ touchscreen-size-y: true
+ touchscreen-inverted-x: true
+ touchscreen-inverted-y: true
+ touchscreen-swapped-x-y: true
+
+additionalProperties: false
+
+required:
+ - compatible
+
+examples:
+ - |
+ touchscreen {
+ compatible = "raspberrypi,firmware-ts";
+ touchscreen-size-x = <800>;
+ touchscreen-size-y = <480>;
+ };