linux-kernel - [PATCH v9 1/2] dt-bindings: input/touchscreen: bindings for Imagis

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Date:   Thu,  3 Mar 2022 18:31:32 +0200
From:   Markuss Broks <markuss.broks@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     phone-devel@...r.kernel.org, ~postmarketos/upstreaming@...ts.sr.ht,
        jeff@...undy.com, markuss.broks@...il.com,
        dmitry.torokhov@...il.com, robh+dt@...nel.org,
        krzysztof.kozlowski@...onical.com, rydberg@...math.com,
        sfr@...b.auug.org.au, linux-input@...r.kernel.org,
        devicetree@...r.kernel.org, Rob Herring <robh@...nel.org>
Subject: [PATCH v9 1/2] dt-bindings: input/touchscreen: bindings for Imagis

This patch adds device-tree bindings for the Imagis
IST3038C touch screen IC.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
Acked-by: Rob Herring <robh@...nel.org>
Signed-off-by: Markuss Broks <markuss.broks@...il.com>
---
 .../input/touchscreen/imagis,ist3038c.yaml    | 74 +++++++++++++++++++
 .../devicetree/bindings/vendor-prefixes.yaml  |  2 +
 2 files changed, 76 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/input/touchscreen/imagis,ist3038c.yaml

diff --git a/Documentation/devicetree/bindings/input/touchscreen/imagis,ist3038c.yaml b/Documentation/devicetree/bindings/input/touchscreen/imagis,ist3038c.yaml
new file mode 100644
index 000000000000..e3a2b871e50c
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/imagis,ist3038c.yaml
@@ -0,0 +1,74 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/imagis,ist3038c.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Imagis IST30XXC family touchscreen controller bindings
+
+maintainers:
+  - Markuss Broks <markuss.broks@...il.com>
+
+allOf:
+  - $ref: touchscreen.yaml#
+
+properties:
+  $nodename:
+    pattern: "^touchscreen@[0-9a-f]+$"
+
+  compatible:
+    enum:
+      - imagis,ist3038c
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  vdd-supply:
+    description: Power supply regulator for the chip
+
+  vddio-supply:
+    description: Power supply regulator for the I2C bus
+
+  touchscreen-size-x: true
+  touchscreen-size-y: true
+  touchscreen-fuzz-x: true
+  touchscreen-fuzz-y: true
+  touchscreen-inverted-x: true
+  touchscreen-inverted-y: true
+  touchscreen-swapped-x-y: true
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - touchscreen-size-x
+  - touchscreen-size-y
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+      touchscreen@50 {
+        compatible = "imagis,ist3038c";
+        reg = <0x50>;
+        interrupt-parent = <&gpio>;
+        interrupts = <13 IRQ_TYPE_EDGE_FALLING>;
+        vdd-supply = <&ldo1_reg>;
+        vddio-supply = <&ldo2_reg>;
+        touchscreen-size-x = <720>;
+        touchscreen-size-y = <1280>;
+        touchscreen-fuzz-x = <10>;
+        touchscreen-fuzz-y = <10>;
+        touchscreen-inverted-x;
+        touchscreen-inverted-y;
+      };
+    };
+
+...
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
index 781a5795d8ff..3dca47d6f1d3 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -560,6 +560,8 @@ patternProperties:
     description: Ingenieurburo Fur Ic-Technologie (I/F/I)
   "^ilitek,.*":
     description: ILI Technology Corporation (ILITEK)
+  "^imagis,.*":
+    description: Imagis Technologies Co., Ltd.
   "^img,.*":
     description: Imagination Technologies Ltd.
   "^imi,.*":
-- 
2.20.1