arm64: dts: qcom: sun: Add devicetree files to opensource project

dsp-devicetree files are currently a part of a proprietary project
and there is a requirement to move them to an opensource project.
This change adds the required files to opensource project with
the compilation disabled until the files are merged.

Change-Id: I9838c13afbcadec7c5a18bab1ccf867e32070cea
Signed-off-by: Anirudh Raghavendra <quic_araghave@quicinc.com>

bindings/msm-cdsp-loader.txt

@@ -0,0 +1,16 @@
+Qualcomm Technologies, Inc. CDSP Loader Driver
+
+msm-cdsp-loader driver implements a mechanism to load the Compute DSP firmware images.
+
+Required properties:
+
+ - compatible:  This must be "qcom,msm-cdsp-loader".
+ - qcom,proc-img-to-load: CDSP firmware name, must be "cdsp".
+
+Example:
+ The following is an example:
+
+	qcom,msm-cdsp-loader {
+		compatible = "qcom,cdsp-loader";
+		qcom,proc-img-to-load = "cdsp";
+	};

bindings/msm-fastrpc.txt

@@ -0,0 +1,100 @@
+Qualcomm Technologies, Inc. FastRPC Driver
+
+The MSM FastRPC driver implements an IPC (Inter-Processor Communication)
+mechanism that allows for clients to transparently make remote method
+invocations across DSP and APPS boundaries. This enables developers
+to offload tasks to the DSP and free up the application processor for
+other tasks.
+
+Required properties:
+- compatible :	Must be one of "qcom,msm-fastrpc-adsp" or "qcom,msm-fastrpc-compute"
+
+Optional properties:
+- qcom,rpc-latency-us		:	FastRPC QoS latency vote
+- qcom,adsp-remoteheap-vmid	:	FastRPC remote heap VMID list
+- qcom,secure-context-bank	:	Bool indicating secure FastRPC context bank.
+- qcom,fastrpc-legacy-remote-heap	:	Bool indicating hypervisor is not supported.
+- qcom,fastrpc-adsp-audio-pdr		:	Flag to enable ADSP Audio PDR
+- qcom,secure-domains		:	FastRPC secure domain configuration
+- qcom,fastrpc-adsp-sensors-pdr		:	Flag to enable Sensors PDR
+
+Optional subnodes:
+- qcom,msm_fastrpc_compute_cb	:	Child nodes representing the compute context banks
+- qcom,msm-fastrpc-rpmsg		:	Child node for rpmsg instead of glink for IPC
+
+Subnode Required properties:
+- compatible	:	Must be "qcom,msm-fastrpc-compute-cb"
+- label			:	Label describing the channel this context bank belongs to
+- iommus		:	A list of phandle and IOMMU specifier pairs that describe the
+					IOMMU master interfaces of the device
+- dma-coherent	:	A flag marking a context bank as I/O coherent
+- shared-cb		:	A value indicating how many fastrpc sessions can share a
+					context bank
+
+Example:
+	qcom,msm_fastrpc {
+		compatible = "qcom,msm-fastrpc-compute";
+		qcom,fastrpc-rpmsg;
+		qcom,rpc-latency-us = <235>;
+		qcom,adsp-remoteheap-vmid = <22 37>;
+		qcom,fastrpc-adsp-sensors-pdr;
+
+		qcom,msm_fastrpc_rpmsg {
+			compatible = "qcom,msm-fastrpc-rpmsg";
+			qcom,glink-channels = "fastrpcglink-apps-dsp";
+			intents = <0x64 64>;
+		};
+
+		qcom,msm_fastrpc_compute_cb_1 {
+			compatible = "qcom,msm-fastrpc-compute-cb";
+			label = "cdsprpc-smd";
+			qcom,secure-context-bank;
+			iommus = <&apps_smmu 0x1401 0x0>;
+			dma-coherent;
+		};
+		qcom,msm_fastrpc_compute_cb_2 {
+			compatible = "qcom,msm-fastrpc-compute-cb";
+			label = "sdsprpc-smd";
+			iommus = <&apps_smmu 0x1402 0x0>;
+			shared-cb = <5>;
+		};
+	};
+
+Legacy SMMU v1/v2:
+
+Required properties:
+- compatible	:	Must be "qcom,msm-fastprc-legacy-compute-cb"
+
+Required subnode:
+- qcom,msm_fastrpc_compute_cb	:	Child nodes representing the compute context
+									banks
+
+Required subnode properties:
+- qcom,adsp-shared-phandle	:	phandle that describe the context bank handle
+- qcom,adsp-shared-sids		:	A list of SID associated with the context bank
+- qcom,virtual-addr-pool	:	Virtual address range that the context bank
+								will be using
+
+Example:
+        qcom,adsprpc_domains {
+                compatible = "qcom,msm-fastrpc-legacy-compute-cb";
+                qcom,msm_fastrpc_compute_cb {
+                       qcom,adsp-shared-phandle = <&adsp_shared>;
+                       qcom,adsp-shared-sids = <0x8 0x9>;
+                       qcom,virtual-addr-pool = <0x80000000 0x7FFFFFFF>;
+                };
+        };
+
+Remote Heap:
+
+Required properties:
+- compatible		:	Must be "qcom,msm-adsprpc-mem-region"
+- memory-region		:	CMA region which is owned by this device
+- restrict-access	:	Blocking vote for hyp_assign_phys function call
+
+Example:
+       qcom,adsprpc-mem {
+               compatible = "qcom,msm-adsprpc-mem-region";
+               memory-region = <&adsp_mem>;
+               restrict-access;
+       };