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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: "http://devicetree.org/schemas/soc/qcom/qcom,smd-rpm.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Qualcomm Resource Power Manager (RPM) over SMD
description: |
This driver is used to interface with the Resource Power Manager (RPM) found
in various Qualcomm platforms. The RPM allows each component in the system
to vote for state of the system resources, such as clocks, regulators and bus
frequencies.
The SMD information for the RPM edge should be filled out. See qcom,smd.txt
for the required edge properties. All SMD related properties will reside
within the RPM node itself.
The RPM exposes resources to its subnodes. The rpm_requests node must be
present and this subnode may contain children that designate regulator
resources.
Refer to Documentation/devicetree/bindings/regulator/qcom,smd-rpm-regulator.txt
for information on the regulator subnodes that can exist under the
rpm_requests.
maintainers:
- Kathiravan T <kathirav@codeaurora.org>
properties:
compatible:
enum:
- qcom,rpm-apq8084
- qcom,rpm-ipq6018
- qcom,rpm-msm8916
- qcom,rpm-msm8974
- qcom,rpm-msm8976
- qcom,rpm-msm8996
- qcom,rpm-msm8998
- qcom,rpm-sdm660
- qcom,rpm-qcs404
qcom,smd-channels:
$ref: /schemas/types.yaml#/definitions/string-array
description: Channel name used for the RPM communication
items:
- const: rpm_requests
if:
properties:
compatible:
contains:
enum:
- qcom,rpm-apq8084
- qcom,rpm-msm8916
- qcom,rpm-msm8974
then:
required:
- qcom,smd-channels
required:
- compatible
additionalProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/interrupt-controller/irq.h>
smd {
compatible = "qcom,smd";
rpm {
interrupts = <GIC_SPI 168 IRQ_TYPE_EDGE_RISING>;
qcom,ipc = <&apcs 8 0>;
qcom,smd-edge = <15>;
rpm_requests {
compatible = "qcom,rpm-msm8974";
qcom,smd-channels = "rpm_requests";
/* Regulator nodes to follow */
};
};
};
...
|
