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From:   Alistair Francis <alistair@alistair23.me>
To:     linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-input@vger.kernel.org
Cc:     andreas@kemnade.info, alistair23@gmail.com,
        dmitry.torokhov@gmail.com, linus.walleij@linaro.org,
        robh+dt@kernel.org, rydberg@bitmath.org,
        mylene.josserand@free-electrons.com,
        Alistair Francis <alistair@alistair23.me>
Subject: [PATCH 2/4] Documentation: DT: bindings: input: Add documentation for cyttsp5
Date:   Mon, 25 Oct 2021 21:42:12 +1000
Message-Id: <20211025114214.44617-3-alistair@alistair23.me>
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From: Mylène Josserand <mylene.josserand@free-electrons.com>

Add the Cypress TrueTouch Generation 5 touchscreen device tree bindings
documentation. It can use I2C or SPI bus.
This touchscreen can handle some defined zone that are designed and
sent as button. To be able to customize the keycode sent, the
"linux,code" property in a "button" sub-node can be used.

Signed-off-by: Mylène Josserand <mylene.josserand@free-electrons.com>
Message-Id: <20170529144538.29187-3-mylene.josserand@free-electrons.com>
Signed-off-by: Alistair Francis <alistair@alistair23.me>
---
 .../input/touchscreen/cypress,cyttsp5.yaml    | 72 +++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/input/touchscreen/cypress,cyttsp5.yaml

diff --git a/Documentation/devicetree/bindings/input/touchscreen/cypress,cyttsp5.yaml b/Documentation/devicetree/bindings/input/touchscreen/cypress,cyttsp5.yaml
new file mode 100644
index 000000000000..0bddbd76a0c3
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/cypress,cyttsp5.yaml
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/cypress,cyttsp5.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cypress cyttsp touchscreen controller, generation 5
+
+maintainers:
+  - Alistair Francis <alistair@alistair23.me>
+
+allOf:
+  - $ref: touchscreen.yaml#
+
+properties:
+  compatible:
+    const: cypress,cyttsp5
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  vdd-supply:
+    description: Regulator for voltage.
+
+  reset-gpios:
+    maxItems: 1
+
+  linux,code:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: EV_ABS specific event code generated by the axis.
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - vdd-supply
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        touchscreen@24 {
+            compatible = "cypress,cyttsp5";
+            reg = <0x24>;
+            pinctrl-names = "default";
+            pinctrl-0 = <&tp_reset_ds203>;
+            interrupt-parent = <&pio>;
+            interrupts = <1 5 IRQ_TYPE_LEVEL_LOW>;
+            reset-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>;
+            vdd-supply = <&reg_touch>;
+
+            button@0 {
+                linux,code = <KEY_HOMEPAGE>;
+            };
+
+            button@1 {
+                linux,code = <KEY_MENU>;
+            };
+
+            button@2 {
+                linux,code = <KEY_BACK>;
+            };
+        };
+    };
+...
-- 
2.31.1