From: Michael Srba <Michael.Srba@seznam.cz>
Date: Sun, 4 Oct 2020 21:37:18 +0000 (-0700)
Subject: dt-bindings: input/touchscreen: add bindings for zinitix
X-Git-Tag: v5.10-rc1~36^2^2~8
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=8f445ffa851e999308bbd4d133ea849936f95179;p=thirdparty%2Fkernel%2Flinux.git

dt-bindings: input/touchscreen: add bindings for zinitix

This patch adds dts bindings for the zinitix bt541 touchscreen.

Signed-off-by: Michael Srba <Michael.Srba@seznam.cz>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20201001122949.16846-2-michael.srba@seznam.cz
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---

diff --git a/Documentation/devicetree/bindings/input/touchscreen/zinitix.txt b/Documentation/devicetree/bindings/input/touchscreen/zinitix.txt
new file mode 100644
index 0000000000000..446efb9f5f551
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/zinitix.txt
@@ -0,0 +1,40 @@
+Device tree bindings for Zinitx BT541 touchscreen controller
+
+Required properties:
+
+ - compatible		: Should be "zinitix,bt541"
+ - reg			: I2C address of the chip. Should be 0x20
+ - interrupts		: Interrupt to which the chip is connected
+
+Optional properties:
+
+ - vdd-supply		: Analog power supply regulator on VCCA pin
+ - vddo-supply		: Digital power supply regulator on VDD pin
+ - zinitix,mode		: Mode of reporting touch points. Some modes may not work
+			  with a particular ts firmware for unknown reasons. Available
+			  modes are 1 and 2. Mode 2 is the default and preferred.
+
+The touchscreen-* properties are documented in touchscreen.txt in this
+directory.
+
+Example:
+
+	i2c@00000000 {
+		/* ... */
+
+		bt541@20 {
+			compatible = "zinitix,bt541";
+			reg = <0x20>;
+			interrupt-parent = <&msmgpio>;
+			interrupts = <13 IRQ_TYPE_EDGE_FALLING>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&tsp_default>;
+			vdd-supply = <&reg_vdd_tsp>;
+			vddo-supply = <&pm8916_l6>;
+			touchscreen-size-x = <540>;
+			touchscreen-size-y = <960>;
+			zinitix,mode = <2>;
+		};
+
+		/* ... */
+	};
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
index d3891386d6710..bd7b2d4041243 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -1143,6 +1143,8 @@ patternProperties:
     description: Shenzhen Zidoo Technology Co., Ltd.
   "^zii,.*":
     description: Zodiac Inflight Innovations
+  "^zinitix,.*":
+    description: Zinitix Co., Ltd
   "^zte,.*":
     description: ZTE Corp.
   "^zyxel,.*":