From d14b844b08635c717fb52a294ed8d6872e260315 Mon Sep 17 00:00:00 2001
From: Lucas Stach <l.stach@pengutronix.de>
Date: Mon, 31 Jul 2017 20:03:05 +0200
Subject: dts: update to v4.13-rc2

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
---
 dts/Bindings/sound/audio-graph-card.txt | 129 ++++++++++++++++++++++++++++++++
 1 file changed, 129 insertions(+)
 create mode 100644 dts/Bindings/sound/audio-graph-card.txt

(limited to 'dts/Bindings/sound/audio-graph-card.txt')

diff --git a/dts/Bindings/sound/audio-graph-card.txt b/dts/Bindings/sound/audio-graph-card.txt
new file mode 100644
index 0000000000..6e6720aa33
--- /dev/null
+++ b/dts/Bindings/sound/audio-graph-card.txt
@@ -0,0 +1,129 @@
+Audio Graph Card:
+
+Audio Graph Card specifies audio DAI connections of SoC <-> codec.
+It is based on common bindings for device graphs.
+see ${LINUX}/Documentation/devicetree/bindings/graph.txt
+
+Basically, Audio Graph Card property is same as Simple Card.
+see ${LINUX}/Documentation/devicetree/bindings/sound/simple-card.txt
+
+Below are same as Simple-Card.
+
+- label
+- widgets
+- routing
+- dai-format
+- frame-master
+- bitclock-master
+- bitclock-inversion
+- frame-inversion
+- dai-tdm-slot-num
+- dai-tdm-slot-width
+- clocks / system-clock-frequency
+
+Required properties:
+
+- compatible				: "audio-graph-card";
+- dais					: list of CPU DAI port{s}
+
+Optional properties:
+- pa-gpios: GPIO used to control external amplifier.
+
+Example: Single DAI case
+
+	sound_card {
+		compatible = "audio-graph-card";
+
+		dais = <&cpu_port>;
+	};
+
+	dai-controller {
+		...
+		cpu_port: port {
+			cpu_endpoint: endpoint {
+				remote-endpoint = <&codec_endpoint>;
+
+				dai-format = "left_j";
+				...
+			};
+		};
+	};
+
+	audio-codec {
+		...
+		port {
+			codec_endpoint: endpoint {
+				remote-endpoint = <&cpu_endpoint>;
+			};
+		};
+	};
+
+Example: Multi DAI case
+
+	sound-card {
+		compatible = "audio-graph-card";
+
+		label = "sound-card";
+
+		dais = <&cpu_port0
+			&cpu_port1
+			&cpu_port2>;
+	};
+
+	audio-codec@0 {
+		...
+		port {
+			codec0_endpoint: endpoint {
+				remote-endpoint = <&cpu_endpoint0>;
+			};
+		};
+	};
+
+	audio-codec@1 {
+		...
+		port {
+			codec1_endpoint: endpoint {
+				remote-endpoint = <&cpu_endpoint1>;
+			};
+		};
+	};
+
+	audio-codec@2 {
+		...
+		port {
+			codec2_endpoint: endpoint {
+				remote-endpoint = <&cpu_endpoint2>;
+			};
+		};
+	};
+
+	dai-controller {
+		...
+		ports {
+			cpu_port0: port@0 {
+				cpu_endpoint0: endpoint {
+					remote-endpoint = <&codec0_endpoint>;
+
+					dai-format = "left_j";
+					...
+				};
+			};
+			cpu_port1: port@1 {
+				cpu_endpoint1: endpoint {
+					remote-endpoint = <&codec1_endpoint>;
+
+					dai-format = "i2s";
+					...
+				};
+			};
+			cpu_port2: port@2 {
+				cpu_endpoint2: endpoint {
+					remote-endpoint = <&codec2_endpoint>;
+
+					dai-format = "i2s";
+					...
+				};
+			};
+		};
+	};
+
-- 
cgit v1.2.3