Adding upstream version 5.10.209.upstream/5.10.209

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 78 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/input/cap11xx.txt b/Documentation/devicetree/bindings/input/cap11xx.txt
new file mode 100644
index 000000000..8c67a0b50
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/cap11xx.txt
@@ -0,0 +1,78 @@
+Device tree bindings for Microchip CAP11xx based capacitive touch sensors
+
+The node for this device must be a child of a I2C controller node, as the
+device communication via I2C only.
+
+Required properties:
+
+	compatible:		Must contain one of:
+					"microchip,cap1106"
+					"microchip,cap1126"
+					"microchip,cap1188"
+
+	reg:			The I2C slave address of the device.
+
+	interrupts:		Property describing the interrupt line the
+				device's ALERT#/CM_IRQ# pin is connected to.
+				The device only has one interrupt source.
+
+Optional properties:
+
+	autorepeat:		Enables the Linux input system's autorepeat
+				feature on the input device.
+
+	microchip,sensor-gain:	Defines the gain of the sensor circuitry. This
+				effectively controls the sensitivity, as a
+				smaller delta capacitance is required to
+				generate the same delta count values.
+				Valid values are 1, 2, 4, and 8.
+				By default, a gain of 1 is set.
+
+	microchip,irq-active-high:	By default the interrupt pin is active low
+				open drain. This property allows using the active
+				high push-pull output.
+
+	linux,keycodes:		Specifies an array of numeric keycode values to
+				be used for the channels. If this property is
+				omitted, KEY_A, KEY_B, etc are used as
+				defaults. The array must have exactly six
+				entries.
+
+Example:
+
+i2c_controller {
+	cap1106@28 {
+		compatible = "microchip,cap1106";
+		interrupt-parent = <&gpio1>;
+		interrupts = <0 0>;
+		reg = <0x28>;
+		autorepeat;
+		microchip,sensor-gain = <2>;
+
+		linux,keycodes = <103>,		/* KEY_UP */
+				 <106>,		/* KEY_RIGHT */
+				 <108>,		/* KEY_DOWN */
+				 <105>,		/* KEY_LEFT */
+				 <109>,		/* KEY_PAGEDOWN */
+				 <104>;		/* KEY_PAGEUP */
+
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		usr@0 {
+			label = "cap11xx:green:usr0";
+			reg = <0>;
+		};
+
+		usr@1 {
+			label = "cap11xx:green:usr1";
+			reg = <1>;
+		};
+
+		alive@2 {
+			label = "cap11xx:green:alive";
+			reg = <2>;
+			linux,default_trigger = "heartbeat";
+		};
+	};
+}