From patchwork Thu Jan 21 11:38:52 2021
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From: Vincent Knecht <vincent.knecht@mailoo.org>
To: Dmitry Torokhov <dmitry.torokhov@gmail.com>,
        Rob Herring <robh+dt@kernel.org>,
        Henrik Rydberg <rydberg@bitmath.org>,
        Vincent Knecht <vincent.knecht@mailoo.org>,
        Linus Walleij <linus.walleij@linaro.org>,
        Michael Srba <Michael.Srba@seznam.cz>,
        linux-input@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org
Cc: ~postmarketos/upstreaming@lists.sr.ht
Subject: [PATCH v2 1/2] dt-bindings: input/touchscreen: add bindings for
 msg26xx
Date: Thu, 21 Jan 2021 12:38:52 +0100
Message-Id: <20210121113904.1272852-1-vincent.knecht@mailoo.org>
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This adds dts bindings for the mstar msg26xx touchscreen.

Signed-off-by: Vincent Knecht <vincent.knecht@mailoo.org>
---
Changed in v2:
- changed M-Star to MStar in title line
- changed reset gpio to active-low in example section
---
 .../input/touchscreen/mstar,msg26xx.yaml      | 66 +++++++++++++++++++
 1 file changed, 66 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/input/touchscreen/mstar,msg26xx.yaml

diff --git a/Documentation/devicetree/bindings/input/touchscreen/mstar,msg26xx.yaml b/Documentation/devicetree/bindings/input/touchscreen/mstar,msg26xx.yaml
new file mode 100644
index 000000000000..ddac0ce057c9
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/mstar,msg26xx.yaml
@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/mstar,msg26xx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MStar msg26xx touchscreen controller Bindings
+
+maintainers:
+  - Vincent Knecht <vincent.knecht@mailoo.org>
+
+allOf:
+  - $ref: touchscreen.yaml#
+
+properties:
+  compatible:
+    const: mstar,msg26xx
+
+  reg:
+    const: 0x26
+
+  interrupts:
+    maxItems: 1
+
+  reset-gpios:
+    maxItems: 1
+
+  vdd-supply:
+    description: Power supply regulator for the chip
+
+  vddio-supply:
+    description: Power supply regulator for the I2C bus
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - reset-gpios
+  - touchscreen-size-x
+  - touchscreen-size-y
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+      touchscreen@26 {
+        compatible = "mstar,msg26xx";
+        reg = <0x26>;
+        interrupt-parent = <&msmgpio>;
+        interrupts = <13 IRQ_TYPE_EDGE_FALLING>;
+        reset-gpios = <&msmgpio 100 GPIO_ACTIVE_LOW>;
+        pinctrl-names = "default";
+        pinctrl-0 = <&ts_int_active>;
+        vdd-supply = <&pm8916_l17>;
+        vddio-supply = <&pm8916_l5>;
+        touchscreen-size-x = <720>;
+        touchscreen-size-y = <1280>;
+      };
+    };
+
+...