Qualcomm Technologies, Inc. GENI I3C master block

Generic bindings document for GENI I3C master controller driver.

Required properties:
- compatible: shall be "qcom,geni-i3c".
- clocks: shall reference the se clock.
- clock-names: shall contain clock name corresponding to the serial engine.
- interrupts: the interrupt line connected to this I3C master.
- reg: I3C master registers.
- qcom,wrapper-core: Wrapper QUPv3 core containing this I3C controller.
- qcom,ibi-ctrl-id: IBI controller instance number.

Optional properties:
- se-clock-frequency: Source serial clock frequency to use.
- dfs-index: Dynamic frequency scaling table index to use.

Mandatory properties defined by the generic binding (see
Documentation/devicetree/bindings/i3c/i3c.txt for more details):

- #address-cells: shall be set to 3.
- #size-cells: shall be set to 0.

Optional properties defined by the generic binding (see
Documentation/devicetree/bindings/i3c/i3c.txt for more details):

- i2c-scl-hz: frequency for i2c transfers.
- i3c-scl-hz: frequency for i3c transfers.

I3C device connected on the bus follow the generic description (see
Documentation/devicetree/bindings/i3c/i3c.txt for more details).

Example:
        i3c0: i3c-master@980000 {
		compatible = "qcom,geni-i3c";
		reg = <0x980000 0x4000>,
			<0xec30000 0x10000>;
		clock-names = "se-clk", "m-ahb", "s-ahb";
		clocks = <&clock_gcc GCC_QUPV3_WRAP0_S0_CLK>,
			<&clock_gcc GCC_QUPV3_WRAP_0_M_AHB_CLK>,
			<&clock_gcc GCC_QUPV3_WRAP_0_S_AHB_CLK>;
		pinctrl-names = "default", "sleep";
		pinctrl-0 = <&qupv3_se0_i3c_active>;
		pinctrl-1 = <&qupv3_se0_i3c_sleep>;
		interrupts = <GIC_SPI 601 IRQ_TYPE_LEVEL_HIGH>;
		#address-cells = <3>;
		#size-cells = <0>;
		qcom,wrapper-core = <&qupv3_0>;
		qcom,ibi-ctrl-id = <0>;
	};