Qualcomm Technologies, Inc. SoundWire Master controller

* swr_master

Required properties:

- compatible : should be "qcom,swr-mstr"
- #address-cells: must be 2
- #size-cells: must be 0
- qcom,swr-num-ports: number of ports in the master.
- qcom,swr-port-mapping: contains codec port_type and
	corresponding ch-mask entries for possible port types
	of the master port.

Optional properties:
- qcom,swr-wakeup-required : should be set to 1 if wakeup is required
from LPASS as part of soundwire data-toggle interrupt sequence
for given target.
 - qcom,swr-mclk-freq: Specifies the mclk frequency

* wsa881x

Required properties:

- compatible : should be "qcom,wsa881x"
- reg : Unique device ID(48 bits) of Soundwire slave device node.
	In the below example, wsa881x is soundwire slave device for
	which the swr-devid is <0x0 0x032000> where 0x03 represents
	device Unique_ID, 0x20 represents Part_Id1 and 0x00
	represents part_Id2.
Optional properties:
- mipi-sdw-clock-stop-mode0-supported : should be set to 1 if all
	the slaves under the master supports clock stop mode 0

 Example:

swr0: swr_master {
		compatible = "qcom,swr-mstr";
		#address-cells = <2>;
		#size-cells = <0>;

		qcom,swr-num-ports = <8>;
		qcom,swr-wakeup-required = <1>;
		qcom,swr-port-mapping = <1 SPKR_L 0x1>,
		<2 SPKR_L_COMP 0xF>, <3 SPKR_L_BOOST 0x3>,
		<4 SPKR_R 0x1>, <5 SPKR_R_COMP 0xF>,
		<6 SPKR_R_BOOST 0x3>, <7 SPKR_L_VI 0x3>,
		<8 SPKR_R_VI 0x3>;

		wsa881x@32000 {
			compatible = "qcom,wsa881x";
			reg = <0x00 0x032000>;
		};

		wsa881x@42000 {
			compatible = "qcom,wsa881x";
			reg = <0x00 0x042000>;
		};
		mipi-sdw-clock-stop-mode0-supported = <0>;
	};