linux-kernel - [PATCH 1/6] dt-bindings: input: touchscreen: add bindings for focaltech,fts

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Date:   Sun, 23 Jan 2022 17:37:27 +0000
From:   Caleb Connolly <caleb@...nolly.tech>
To:     Thierry Reding <thierry.reding@...il.com>,
        Sam Ravnborg <sam@...nborg.org>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Kees Cook <keescook@...omium.org>,
        Anton Vorontsov <anton@...msg.org>,
        Colin Cross <ccross@...roid.com>,
        Tony Luck <tony.luck@...el.com>,
        Henrik Rydberg <rydberg@...math.org>,
        Harigovindan P <harigovi@...eaurora.org>,
        Caleb Connolly <caleb@...nolly.tech>,
        dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-input@...r.kernel.org,
        linux-arm-msm@...r.kernel.org,
        Alexander Martinz <amartinz@...ftphones.com>
Subject: [PATCH 1/6] dt-bindings: input: touchscreen: add bindings for focaltech,fts

Add devicetree bindings for the Focaltech FTS touchscreen drivers.

Signed-off-by: Caleb Connolly <caleb@...nolly.tech>
---
 .../input/touchscreen/focaltech,fts.yaml      | 78 +++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/input/touchscreen/focaltech,fts.yaml

diff --git a/Documentation/devicetree/bindings/input/touchscreen/focaltech,fts.yaml b/Documentation/devicetree/bindings/input/touchscreen/focaltech,fts.yaml
new file mode 100644
index 000000000000..bb25a4f8ad71
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/focaltech,fts.yaml
@@ -0,0 +1,78 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/focaltech,fts.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Focaltech FTS I2C Touchscreen Controller
+
+maintainers:
+  - Caleb Connolly <caleb@...nolly.tech>
+
+allOf:
+  - $ref: touchscreen.yaml#
+
+properties:
+  compatible:
+    enum:
+      - focaltech,fts5452
+      - focaltech,fts8719
+  reg:
+    const: 0x38
+
+  interrupts:
+    maxItems: 1
+
+  reset-gpios:
+    maxItems: 1
+
+  wakeup-source:
+    type: boolean
+    description: touchscreen can be used as a wakeup source.
+
+  focaltech,max-touch-number:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: max number of fingers supported
+    minimum: 2
+    maximum: 10
+
+  touchscreen-size-x: true
+  touchscreen-size-y: true
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - reset-gpios
+  - focaltech,max-touch-number
+  - touchscreen-size-x
+  - touchscreen-size-y
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/gpio/gpio.h>
+    &i2c5 {
+      status="okay";
+
+      touchscreen: focaltech@38 {
+        compatible = "focaltech,fts8719";
+        reg = <0x38>;
+        wakeup-source;
+        interrupt-parent = <&tlmm>;
+        interrupts = <125 0x2>;
+        vdd-supply = <&vreg_l28a_3p0>;
+        vcc-i2c-supply = <&vreg_l14a_1p88>;
+
+        pinctrl-names = "default", "suspend";
+        pinctrl-0 = <&ts_int_active &ts_reset_active>;
+        pinctrl-1 = <&ts_int_suspend &ts_reset_suspend>;
+
+        reset-gpio = <&tlmm 99 GPIO_ACTIVE_HIGH>;
+        irq-gpio = <&tlmm 125 GPIO_TRANSITORY>;
+        touchscreen-size-x = <1080>;
+        touchscreen-size-y = <2160>;
+        focaltech,max-touch-number = <5>;
+      };
+    };
--
2.34.1