[PATCH RFC 05/10] dt-bindings: input: touchscreen: add Novatek NT36672A SPI touchscreen

["YİĞİTCAN KAVAKLI via B4 Relay" <devnull+kavakliyigitcan.gmail.com@kernel.org>]

From: YİĞİTCAN KAVAKLI <kavakliyigitcan@gmail.com>

Add devicetree binding documentation for the Novatek NT36672A SPI
touchscreen controller.

The binding supports standard SPI peripheral properties, interrupt
configuration, the optional 'panel' phandle for DRM panel follower
synchronization, and an optional 'firmware-name' property.

Signed-off-by: YİĞİTCAN KAVAKLI <kavakliyigitcan@gmail.com>
---
 .../input/touchscreen/novatek,nt36672a-spi.yaml    | 66 ++++++++++++++++++++++
 1 file changed, 66 insertions(+)

diff --git a/Documentation/devicetree/bindings/input/touchscreen/novatek,nt36672a-spi.yaml b/Documentation/devicetree/bindings/input/touchscreen/novatek,nt36672a-spi.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..0d89d60f2a93d26e2f7903371ecc6eb9ed683b33
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/novatek,nt36672a-spi.yaml
@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/novatek,nt36672a-spi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Novatek NT36672A SPI Touchscreen Controller
+
+maintainers:
+  - Dmitry Torokhov <dmitry.torokhov@gmail.com>
+
+description:
+  The Novatek NT36672A TDDI controller is connected over SPI for touchscreen
+  interaction, with host-downloaded firmware into controller SRAM. It integrates
+  with the display panel lifecycle using the DRM panel follower API.
+
+allOf:
+  - $ref: touchscreen.yaml#
+  - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+properties:
+  compatible:
+    enum:
+      - novatek,nt36672a-spi
+      - novatek,nt36672a-ts
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  spi-max-frequency: true
+
+  panel:
+    description: phandle of the display panel that this touchscreen follows.
+    $ref: /schemas/types.yaml#/definitions/phandle
+
+  firmware-name:
+    description: Name of the firmware file to load into controller SRAM.
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        touchscreen@0 {
+            compatible = "novatek,nt36672a-spi";
+            reg = <0>;
+            spi-max-frequency = <4000000>;
+            interrupts = <88 IRQ_TYPE_EDGE_RISING>;
+            panel = <&panel>;
+            touchscreen-size-x = <1080>;
+            touchscreen-size-y = <2340>;
+        };
+    };
+...

-- 
2.47.3