linux-kernel - [PATCH v2 1/2] dt-bindings: input: Add Himax HX83102J touchscreen

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Date:   Wed,  6 Dec 2023 18:35:45 +0800
From:   Allen_Lin <allencl_lin@...mail.com>
To:     dmitry.torokhov@...il.com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        jikos@...nel.org, benjamin.tissoires@...hat.com,
        linux-input@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Allen_Lin <allencl_lin@...mail.com>
Subject: [PATCH v2 1/2] dt-bindings: input: Add Himax HX83102J touchscreen

Add the HX83102j touchscreen device tree bindings documents.

Signed-off-by: Allen_Lin <allencl_lin@...mail.com>
---
 .../bindings/input/himax,hx8310xx.yaml        | 70 +++++++++++++++++++
 MAINTAINERS                                   |  6 ++
 2 files changed, 76 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/input/himax,hx8310xx.yaml

diff --git a/Documentation/devicetree/bindings/input/himax,hx8310xx.yaml b/Documentation/devicetree/bindings/input/himax,hx8310xx.yaml
new file mode 100644
index 000000000000..1cc65e9bd267
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/himax,hx8310xx.yaml
@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/himax,hx8310xx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: himax hx8310xx touchscreen
+
+maintainers:
+  - Allen Lin <allencl_lin@...mail.com>
+
+description:
+  Supports the himax hx8310xx touchscreen.
+  This touchscreen uses the spi-hid protocol but has some non-standard
+  power sequencing required.
+
+allOf:
+  - $ref: /schemas/input/touchscreen/touchscreen.yaml#
+
+properties:
+  compatible:
+    enum:
+      - himax,hx83102j
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  reset-gpios:
+    maxItems: 1
+
+  spi-cpha: true
+
+  spi-cpol: true
+
+  spi-max-frequency: true
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - reset-gpios
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,rpmh.h>
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    spi {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      hid_himax_spi@0 {
+        pinctrl-names = "default";
+        pinctrl-0 = <&touch_int0 &touch_reset>;
+        reg = <0>;
+        spi-max-frequency = <12500000>;
+        status = "okay";
+        compatible = "himax,hx83102j";
+        reset-gpios = <&gpio1 8 GPIO_ACTIVE_LOW>;
+        spi-cpha;
+        spi-cpol;
+        interrupt-parent = <&gpio1>;
+        interrupts = <7 IRQ_TYPE_LEVEL_LOW>;
+      };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index 012df8ccf34e..cadcbf7294a6 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -9502,6 +9502,12 @@ L:	linux-kernel@...r.kernel.org
 S:	Maintained
 F:	drivers/misc/hisi_hikey_usb.c
 
+HIMAX HID HX83102J TOUCHSCREEN
+M:	Allen Lin <allencl_lin@...mail.com>
+L:	linux-input@...r.kernel.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/input/himax,hx8310xx.yaml
+
 HIMAX HX83112B TOUCHSCREEN SUPPORT
 M:	Job Noorman <job@...rman.info>
 L:	linux-input@...r.kernel.org
-- 
2.34.1