SPMI Controller Simulator

The SPMI Controller Simulator simulates an SPMI bus with PMIC devices attached
to it.

See spmi.txt for the generic SPMI controller binding requirements for child
nodes.

Supported Properties:

- compatible
	Usage:      required
	Value type: <string>
	Definition: Must be "qcom,spmi-sim".

- reg
	Usage:      required
	Value type: <prop-encoded-array>
	Definition: List of SPMI address and size pairs.  These addresses are
		    the ones to be simulated.

- #address-cells
	Usage:      required
	Value type: <u32>
	Definition: Must be 2.

- #size-cells
	Usage:      required
	Value type: <u32>
	Definition: Must be 0.

- interrupt-controller
	Usage:      required
	Value type: boolean
	Definition: Boolean indicating that the SPMI Controller Simulator is an
		    interrupt controller.

- #interrupt-cells
	Usage:      required
	Value type: <u32>
	Definition: Must be 4.
		    Interrupts are specified as a 4-tuple:
			Cell 1: Slave ID for the requested interrupt (0-15)
			Cell 2: Peripheral ID for requested interrupt (0-255)
			Cell 3: The requested peripheral interrupt (0-7)
			Cell 4: Interrupt flags indicating level-sense
				information, as defined in:
				dt-bindings/interrupt-controller/irq.h

- qcom,reg-defaults
	Usage:      optional
	Value type: <prop-encoded-array>
	Definition: List of SPMI address and value pairs.  These define the
		    default values read back from the simulated registers.  The
		    values must be between 0 and 255.

Simulated PMIC Device Supported Properties:

- qcom,spmi-sim
	Usage:      required
	Value type: <phandle>
	Definition: phandle of the spmi-sim bus device that the simulated PMIC
		    device should be used with.

Example:

spmi_sim: spmi-sim {
	compatible = "qcom,spmi-sim";
	reg = <0x00000 0x20000>,
	      <0x40000 0x20000>;
	#address-cells = <2>;
	#size-cells = <0>;
	interrupt-controller;
	#interrupt-cells = <4>;

	qcom,reg-defaults =
		<0x00104 0x51>,
		<0x00105 0x14>,
		<0x40104 0x51>,
		<0x40105 0x18>;
};

pm8150-sim {
	compatible = "qcom,pm8150-sim";
	qcom,spmi-sim = <&spmi_sim>;
	qcom,sid-offset = <0>;
};