* Qualcomm MSM VIDC

Required properties:
- compatible : one of:
	- "qcom,msm-vidc"
- qcom,hfi : supported Host-Firmware Interface, one of:
	- "venus"
	- "q6"
- qcom,max-hw-load: The maximum load the hardware can support expressed in units
  of macroblocks per second.

Optional properties:
- reg : offset and length of the register set for the device.
- interrupts : should contain the vidc interrupt.
- qcom,vidc-cp-map : start and size of device virtual address range for
  secure buffers. Video hardware uses this address range to identify if
  the buffers are secure or non-secure.
- qcom,vidc-ns-map : start and size of device virtual address range for
  non-secure buffers. Video hardware uses this address range to identify
  if the buffers are secure or non-secure.
- qcom,load-freq-tbl : load (in macroblocks/sec) and corresponding vcodec
  clock required for optimal performance in descending order.
- qcom,reg-presets : list of offset-value pairs for registers to be written.
  The offsets are from the base offset specified in 'reg'. This is mainly
  used for QoS, vbif, etc. presets for video.
- qcom,bus-ports : number of bus ports supported by venus to access
  ddr/ocmem.
- qcom,enc-ocmem-ab-ib : list of bus vectors (ab, ib pair) for ocmem
  bandwidth request by different video encoder usecases.
- qcom,dec-ocmem-ab-ib : list of bus vectors(ab, ib pair) for ocmem
  bandwidth request by different video decoder usecases.
- qcom,enc-ddr-ab-ib : list of bus vectors(ab,ib pair) for ddr bandwidth
  request by different video encoder usecases.
- qcom,dec-ddr-ab-ib : list of bus vectors(ab, ib pair) for ddr bandwidth
  request by different video decoder usecases.
- qcom,iommu-groups : list of IOMMU groups to be used.  Groups are defined as
  phandles in <target>-iommu-domains.dtsi (e.g msm8974-v1-iommu-domains.dtsi)
- qcom,iommu-group-buffer-types : bitmap of buffer types that can be mapped into
  the corresponding IOMMU group. Buffer types are defined within the vidc driver
  by "enum hal_buffer" in msm_smem.h
- qcom,buffer-type-tz-usage-table : a key-value pair, mapping a buffer type
  (enum hal_buffer) to its corresponding TZ usage. The TZ usages are defined
  as "enum cp_mem_usage" in include/linux/msm_ion.h
- qcom,has-ocmem: indicate the target has ocmem if this property exists

Example:


	qcom,vidc@fdc00000 {
		compatible = "qcom,msm-vidc";
		reg = <0xfdc00000 0xff000>;
		interrupts = <0 44 0>;
		qcom,vidc-cp-map = <0x1000000 0x40000000>;
		qcom,vidc-ns-map = <0x40000000 0x40000000>;
		qcom,load-freq-tbl = <979200 410000000>,
				<560145 266670000>,
				<421161 200000000>,
				<243000 133330000>,
				<108000 100000000>,
				<36000 50000000>;
		qcom,has-ocmem;
		qcom,hfi = "venus";
		qcom,reg-presets = <0x80004 0x1>,
			<0x80178 0x00001FFF>;
		qcom,bus-ports = <1>;
		qcom,enc-ocmem-ab-ib = <0 0>,
			<138200 1222000>;
		qcom,dec-ocmem-ab-ib = <0 0>,
			<176900 1556640>;
		qcom,enc-ddr-ab-ib = <0 0>,
			<60000 664950>;
		qcom,dec-ddr-ab-ib = <0 0>,
			<110000 909000>;
		qcom,iommu-groups = <&venus_domain_ns &venus_domain_cp>;
		qcom,iommu-group-buffer-types = <0xfff 0x1ff>;
		qcom,buffer-type-tz-usage-table = <0x1 0x1>,
						<0x1fe 0x2>;
		qcom,max-hw-load = <1224450>; /* 4k @ 30 + 1080p @ 30*/
	};