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Device Tree Clock bindings for ZTE zx296702

This binding uses the common clock binding[1].

[1] Documentation/devicetree/bindings/clock/clock-bindings.txt

Required properties:
- compatible : shall be one of the following:
	"zte,zx296702-topcrm-clk":
		zx296702 top clock selection, divider and gating

	"zte,zx296702-lsp0crpm-clk" and
	"zte,zx296702-lsp1crpm-clk":
		zx296702 device level clock selection and gating

- reg: Address and length of the register set

The clock consumer should specify the desired clock by having the clock
ID in its "clocks" phandle cell. See include/dt-bindings/clock/zx296702-clock.h
for the full list of zx296702 clock IDs.


topclk: topcrm@0x09800000 {
        compatible = "zte,zx296702-topcrm-clk";
        reg = <0x09800000 0x1000>;
        #clock-cells = <1>;
};

uart0: serial@0x09405000 {
        compatible = "zte,zx296702-uart";
        reg = <0x09405000 0x1000>;
        interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
        clocks = <&lsp1clk ZX296702_UART0_PCLK>;
        status = "disabled";
};