1Qualcomm Resource Power Manager (RPM) over SMD
2
3This driver is used to interface with the Resource Power Manager (RPM) found in
4various Qualcomm platforms. The RPM allows each component in the system to vote
5for state of the system resources, such as clocks, regulators and bus
6frequencies.
7
8The SMD information for the RPM edge should be filled out.  See qcom,smd.txt for
9the required edge properties.  All SMD related properties will reside within the
10RPM node itself.
11
12= SUBDEVICES
13
14The RPM exposes resources to its subnodes.  The rpm_requests node must be
15present and this subnode may contain children that designate regulator
16resources.
17
18- compatible:
19	Usage: required
20	Value type: <string>
21	Definition: must be one of:
22		    "qcom,rpm-apq8084"
23		    "qcom,rpm-msm8916"
24		    "qcom,rpm-msm8974"
25		    "qcom,rpm-msm8976"
26		    "qcom,rpm-msm8998"
27		    "qcom,rpm-sdm660"
28		    "qcom,rpm-qcs404"
29
30- qcom,smd-channels:
31	Usage: required
32	Value type: <string>
33	Definition: must be "rpm_requests"
34
35Refer to Documentation/devicetree/bindings/regulator/qcom,smd-rpm-regulator.txt
36for information on the regulator subnodes that can exist under the rpm_requests.
37
38Example:
39
40	soc {
41		apcs: syscon@f9011000 {
42			compatible = "syscon";
43			reg = <0xf9011000 0x1000>;
44		};
45	};
46
47	smd {
48		compatible = "qcom,smd";
49
50		rpm {
51			interrupts = <0 168 1>;
52			qcom,ipc = <&apcs 8 0>;
53			qcom,smd-edge = <15>;
54
55			rpm_requests {
56				compatible = "qcom,rpm-msm8974";
57				qcom,smd-channels = "rpm_requests";
58
59				...
60			};
61		};
62	};
63