1 files changed, 54 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/display/bridge/tda998x.txt b/Documentation/devicetree/bindings/display/bridge/tda998x.txt
new file mode 100644
index 000000000..f5a02f61d
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/tda998x.txt
@@ -0,0 +1,54 @@
+Device-Tree bindings for the NXP TDA998x HDMI transmitter
+
+Required properties;
+  - compatible: must be "nxp,tda998x"
+
+  - reg: I2C address
+
+Required node:
+  - port: Input port node with endpoint definition, as described
+        in Documentation/devicetree/bindings/graph.txt
+
+Optional properties:
+  - interrupts: interrupt number and trigger type
+	default: polling
+
+  - pinctrl-0: pin control group to be used for
+	screen plug/unplug interrupt.
+
+  - pinctrl-names: must contain a "default" entry.
+
+  - video-ports: 24 bits value which defines how the video controller
+	output is wired to the TDA998x input - default: <0x230145>
+
+  - audio-ports: array of 8-bit values, 2 values per one DAI[1].
+	The first value defines the DAI type: TDA998x_SPDIF or TDA998x_I2S[2].
+	The second value defines the tda998x AP_ENA reg content when the DAI
+	in question is used. The implementation allows one or two DAIs. If two
+	DAIs are defined, they must be of different type.
+
+  - nxp,calib-gpios: calibration GPIO, which must correspond with the
+	gpio used for the TDA998x interrupt pin.
+
+[1] Documentation/sound/soc/dai.rst
+[2] include/dt-bindings/display/tda998x.h
+
+Example:
+
+#include <dt-bindings/display/tda998x.h>
+
+	tda998x: hdmi-encoder {
+		compatible = "nxp,tda998x";
+		reg = <0x70>;
+		interrupt-parent = <&gpio0>;
+		interrupts = <27 2>;		/* falling edge */
+		pinctrl-0 = <&pmx_camera>;
+		pinctrl-names = "default";
+		video-ports = <0x230145>;
+
+		#sound-dai-cells = <2>;
+			     /*	DAI-format	AP_ENA reg value */
+		audio-ports = <	TDA998x_SPDIF	0x04
+				TDA998x_I2S	0x03>;
+
+	};