xref: /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/clock/brcm,bcm53573-ilp.txt (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593SmuzhiyunBroadcom BCM53573 ILP clock
2*4882a593Smuzhiyun===========================
3*4882a593Smuzhiyun
4*4882a593SmuzhiyunThis binding uses the common clock binding:
5*4882a593Smuzhiyun    Documentation/devicetree/bindings/clock/clock-bindings.txt
6*4882a593Smuzhiyun
7*4882a593SmuzhiyunThis binding is used for ILP clock (sometimes referred as "slow clock")
8*4882a593Smuzhiyunon Broadcom BCM53573 devices using Cortex-A7 CPU.
9*4882a593Smuzhiyun
10*4882a593SmuzhiyunILP's rate has to be calculated on runtime and it depends on ALP clock
11*4882a593Smuzhiyunwhich has to be referenced.
12*4882a593Smuzhiyun
13*4882a593SmuzhiyunThis clock is part of PMU (Power Management Unit), a Broadcom's device
14*4882a593Smuzhiyunhanding power-related aspects. Its node must be sub-node of the PMU
15*4882a593Smuzhiyundevice.
16*4882a593Smuzhiyun
17*4882a593SmuzhiyunRequired properties:
18*4882a593Smuzhiyun- compatible: "brcm,bcm53573-ilp"
19*4882a593Smuzhiyun- clocks: has to reference an ALP clock
20*4882a593Smuzhiyun- #clock-cells: should be <0>
21*4882a593Smuzhiyun- clock-output-names: from common clock bindings, should contain clock
22*4882a593Smuzhiyun		      name
23*4882a593Smuzhiyun
24*4882a593SmuzhiyunExample:
25*4882a593Smuzhiyun
26*4882a593Smuzhiyunpmu@18012000 {
27*4882a593Smuzhiyun	compatible = "simple-mfd", "syscon";
28*4882a593Smuzhiyun	reg = <0x18012000 0x00001000>;
29*4882a593Smuzhiyun
30*4882a593Smuzhiyun	ilp {
31*4882a593Smuzhiyun		compatible = "brcm,bcm53573-ilp";
32*4882a593Smuzhiyun		clocks = <&alp>;
33*4882a593Smuzhiyun		#clock-cells = <0>;
34*4882a593Smuzhiyun		clock-output-names = "ilp";
35*4882a593Smuzhiyun	};
36*4882a593Smuzhiyun};
37