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+Qualcomm APR (Asynchronous Packet Router) binding
+
+This binding describes the Qualcomm APR. APR is a IPC protocol for
+communication between Application processor and QDSP. APR is mainly
+used for audio/voice services on the QDSP.
+
+- compatible:
+	Usage: required
+	Value type: <stringlist>
+	Definition: must be "qcom,apr-v<VERSION-NUMBER>", example "qcom,apr-v2"
+
+- qcom,apr-dest-domain-id
+	Usage: required
+	Value type: <prop-encoded-array>
+	Definition: Destination processor ID.
+	Possible values are :
+			1 - APR simulator
+			2 - PC
+			3 - MODEM
+			4 - ADSP
+			5 - APPS
+			6 - MODEM2
+			7 - APPS2
+
+= APR SERVICES
+Each subnode of the APR node can represent service tied to this apr. The name
+of the nodes are not important. The properties of these nodes are defined
+by the individual bindings for the specific service
+- but must contain the following property:
+
+- qcom,apr-svc-id
+	Usage: required
+	Value type: <prop-encoded-array>
+	Definition: APR Service ID, used for matching the service.
+	Possible values are :
+			3 - DSP Core Service
+			4 - Audio Front End Service.
+			5 - Voice Stream Manager Service.
+			6 - Voice processing manager.
+			7 - Audio Stream Manager Service.
+			8 - Audio Device Manager Service.
+			9 - Multimode voice manager.
+			10 - Core voice stream.
+			11 - Core voice processor.
+			12 - Ultrasound stream manager.
+			13 - Listen stream manager.
+
+- qcom,apr-svc-name
+	Usage: required
+	Value type: <stringlist>
+	Definition: User readable name of a APR service.
+
+= APR DEVICES:
+Each subnode of the APR node can represent devices tied to this apr, like
+sound-card. The properties of these nodes are defined by the individual
+bindings for the specific device.
+
+= EXAMPLE
+The following example represents a QDSP based sound card on a MSM8996 device
+which uses apr as communication between Apps and QDSP.
+
+	apr {
+		compatible = "qcom,apr-v2";
+		qcom,smd-channels = "apr_audio_svc";
+		qcom,apr-dest-domain-id = <APR_DOMAIN_ADSP>;
+
+		q6core {
+			compatible = "qcom,q6core";
+			qcom,apr-svc-name = "CORE";
+			qcom,apr-svc-id = <APR_SVC_ADSP_CORE>;
+		};
+
+		q6afe {
+			compatible = "qcom,q6afe";
+			qcom,apr-svc-name = "AFE";
+			qcom,apr-svc-id = <APR_SVC_AFE>;
+		};
+
+		audio {
+			compatible = "qcom,msm8996-snd-card";
+			...
+		};
+	};