1TI SOC based PWM Subsystem
2
3Required properties:
4- compatible: Must be "ti,<soc>-pwmss".
5  for am33xx  - compatible = "ti,am33xx-pwmss";
6  for am4372  - compatible = "ti,am4372-pwmss","ti,am33xx-pwmss";
7
8- reg: physical base address and size of the registers map.
9- address-cells: Specify the number of u32 entries needed in child nodes.
10		  Should set to 1.
11- size-cells: specify number of u32 entries needed to specify child nodes size
12		in reg property. Should set to 1.
13- ranges: describes the address mapping of a memory-mapped bus. Should set to
14	   physical address map of child's base address, physical address within
15	   parent's address  space and length of the address map. For am33xx,
16	   3 set of child register maps present, ECAP register space, EQEP
17	   register space, EHRPWM register space.
18
19Also child nodes should also populated under PWMSS DT node.
20
21Example:
22epwmss0: epwmss@48300000 { /* PWMSS for am33xx */
23	compatible = "ti,am33xx-pwmss";
24	reg = <0x48300000 0x10>;
25	ti,hwmods = "epwmss0";
26	#address-cells = <1>;
27	#size-cells = <1>;
28	status = "disabled";
29	ranges = <0x48300100 0x48300100 0x80   /* ECAP */
30		  0x48300180 0x48300180 0x80   /* EQEP */
31		  0x48300200 0x48300200 0x80>; /* EHRPWM */
32
33	/* child nodes go here */
34};
35
36epwmss0: epwmss@48300000 { /* PWMSS for am4372 */
37	compatible = "ti,am4372-pwmss","ti,am33xx-pwmss"
38	reg = <0x48300000 0x10>;
39	ti,hwmods = "epwmss0";
40	#address-cells = <1>;
41	#size-cells = <1>;
42	status = "disabled";
43	ranges = <0x48300100 0x48300100 0x80   /* ECAP */
44		  0x48300180 0x48300180 0x80   /* EQEP */
45		  0x48300200 0x48300200 0x80>; /* EHRPWM */
46
47	/* child nodes go here */
48};
49