dt-bindings: input: document Novatek NVT touchscreen controller

Document the Novatek NVT touchscreen controller present in devices like
qcom/sdm845-xiaomi-beryllium-tianma.dts. Also, include the devictree
binding file in the MAINTAINERS file.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Joel Selvaraj <joelselvaraj.oss@gmail.com>
Link: https://lore.kernel.org/r/20240601-nvt-ts-devicetree-regulator-support-v5-2-aa9bf986347d@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --git a/Documentation/devicetree/bindings/input/touchscreen/novatek,nvt-ts.yaml b/Documentation/devicetree/bindings/input/touchscreen/novatek,nvt-ts.yaml
new file mode 100644 (file)
index 0000000..bd6a604
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/novatek,nvt-ts.yaml
@@ -0,0 +1,62 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/novatek,nvt-ts.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Novatek NVT Touchscreen Controller
+
+maintainers:
+  - Hans de Goede <hdegoede@redhat.com>
+
+allOf:
+  - $ref: touchscreen.yaml#
+
+properties:
+  compatible:
+    enum:
+      - novatek,nt11205-ts
+      - novatek,nt36672a-ts
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  reset-gpios:
+    maxItems: 1
+
+  vcc-supply: true
+  iovcc-supply: true
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        touchscreen@1 {
+            compatible = "novatek,nt36672a-ts";
+            reg = <0x01>;
+            interrupts-extended = <&tlmm 31 IRQ_TYPE_EDGE_RISING>;
+            reset-gpios = <&tlmm 32 GPIO_ACTIVE_LOW>;
+            vcc-supply = <&vreg_l22a_2p85>;
+            iovcc-supply = <&vreg_l14a_1p8>;
+            pinctrl-0 = <&ts_int_default &ts_reset_default>;
+            pinctrl-1 = <&ts_int_sleep &ts_reset_sleep>;
+            pinctrl-names = "default", "sleep";
+            touchscreen-size-x = <1080>;
+            touchscreen-size-y = <2246>;
+        };
+    };
+
+...

diff --git a/MAINTAINERS b/MAINTAINERS
index 45f3960b27a378d0cbaca786e9fd8ac335ec3044..a533d882b0022fd7580b829b68d846d319a4a8a7 100644 (file)
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -16260,6 +16260,7 @@ NOVATEK NVT-TS I2C TOUCHSCREEN DRIVER
 M:     Hans de Goede <hdegoede@redhat.com>
 L:     linux-input@vger.kernel.org
 S:     Maintained
+F:     Documentation/devicetree/bindings/input/touchscreen/novatek,nvt-ts.yaml
 F:     drivers/input/touchscreen/novatek-nvt-ts.c
 
 NSDEPS