[PATCH 1/2] dt-bindings: Add DT bindings for RaspberryPi 7" display ATTINY88-based regulator/backlight controller

[Marek Vasut]

Add DT bindings for RaspberryPi 7" display ATTINY88-based
regulator/backlight controller, this one is used in the
Raspberry Pi 7" touchscreen display unit.

Signed-off-by: Marek Vasut <marex at denx.de>
To: dri-devel at lists.freedesktop.org
Cc: Eric Anholt <eric at anholt.net>
Cc: Mark Brown <broonie at kernel.org>
Cc: Rob Herring <robh+dt at kernel.org>
Cc: Sam Ravnborg <sam at ravnborg.org>
Cc: devicetree at vger.kernel.org
---
 ...ypi,7inch-touchscreen-panel-regulator.yaml | 44 +++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/regulator/raspberrypi,7inch-touchscreen-panel-regulator.yaml

diff --git a/Documentation/devicetree/bindings/regulator/raspberrypi,7inch-touchscreen-panel-regulator.yaml b/Documentation/devicetree/bindings/regulator/raspberrypi,7inch-touchscreen-panel-regulator.yaml
new file mode 100644
index 000000000000..0ae25d119b6f
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/raspberrypi,7inch-touchscreen-panel-regulator.yaml
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/raspberrypi,7inch-touchscreen-panel-regulator.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: RaspberryPi 7" display ATTINY88-based regulator/backlight controller
+
+maintainers:
+  - Marek Vasut <marex at denx.de>
+
+description: |
+  The RaspberryPi 7" display has an ATTINY88-based regulator/backlight
+  controller on the PCB, which is used to turn the display unit on/off
+  and control the backlight.
+
+allOf:
+  - $ref: "regulator.yaml#"
+
+properties:
+  compatible:
+    const: raspberrypi,7inch-touchscreen-panel-regulator
+
+  reg:
+    maxItems: 1
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+
+examples:
+  - |
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+      regulator at 45 {
+        compatible = "raspberrypi,7inch-touchscreen-panel-regulator";
+        reg = <0x45>;
+      };
+    };
+
+...
-- 
2.28.0