1SAMSUNG Exynos SoC series PMU Registers
2
3Properties:
4 - compatible : should contain two values. First value must be one from following list:
5		   - "samsung,exynos3250-pmu" - for Exynos3250 SoC,
6		   - "samsung,exynos4210-pmu" - for Exynos4210 SoC,
7		   - "samsung,exynos4212-pmu" - for Exynos4212 SoC,
8		   - "samsung,exynos4412-pmu" - for Exynos4412 SoC,
9		   - "samsung,exynos5250-pmu" - for Exynos5250 SoC,
10		   - "samsung,exynos5260-pmu" - for Exynos5260 SoC.
11		   - "samsung,exynos5410-pmu" - for Exynos5410 SoC,
12		   - "samsung,exynos5420-pmu" - for Exynos5420 SoC.
13		   - "samsung,exynos7-pmu" - for Exynos7 SoC.
14		second value must be always "syscon".
15
16 - reg : offset and length of the register set.
17
18 - #clock-cells : must be <1>, since PMU requires once cell as clock specifier.
19		The single specifier cell is used as index to list of clocks
20		provided by PMU, which is currently:
21			0 : SoC clock output (CLKOUT pin)
22
23 - clock-names : list of clock names for particular CLKOUT mux inputs in
24		following format:
25			"clkoutN", where N is a decimal number corresponding to
26			CLKOUT mux control bits value for given input, e.g.
27				"clkout0", "clkout7", "clkout15".
28
29 - clocks : list of phandles and specifiers to all input clocks listed in
30		clock-names property.
31
32Optional properties:
33
34Some PMUs are capable of behaving as an interrupt controller (mostly
35to wake up a suspended PMU). In which case, they can have the
36following properties:
37
38- interrupt-controller: indicate that said PMU is an interrupt controller
39
40- #interrupt-cells: must be identical to the that of the parent interrupt
41  controller.
42
43- interrupt-parent: a phandle indicating which interrupt controller
44  this PMU signals interrupts to.
45
46Example :
47pmu_system_controller: system-controller@10040000 {
48	compatible = "samsung,exynos5250-pmu", "syscon";
49	reg = <0x10040000 0x5000>;
50	interrupt-controller;
51	#interrupt-cells = <3>;
52	interrupt-parent = <&gic>;
53	#clock-cells = <1>;
54	clock-names = "clkout0", "clkout1", "clkout2", "clkout3",
55			"clkout4", "clkout8", "clkout9";
56	clocks = <&clock CLK_OUT_DMC>, <&clock CLK_OUT_TOP>,
57		<&clock CLK_OUT_LEFTBUS>, <&clock CLK_OUT_RIGHTBUS>,
58		<&clock CLK_OUT_CPU>, <&clock CLK_XXTI>,
59		<&clock CLK_XUSBXTI>;
60};
61
62Example of clock consumer :
63
64usb3503: usb3503@08 {
65	/* ... */
66	clock-names = "refclk";
67	clocks = <&pmu_system_controller 0>;
68	/* ... */
69};
70