Files
linux/Documentation/devicetree/bindings/cpufreq/qcom-cpufreq-nvmem.yaml
Krzysztof Kozlowski 84e85359f4 dt-bindings: drop redundant part of title (end, part three)
The Devicetree bindings document does not have to say in the title that
it is a "binding", but instead just describe the hardware.

Drop trailing "bindings" in various forms (also with trailing full
stop):

  find Documentation/devicetree/bindings/ -type f -name '*.yaml' \
    -not -name 'trivial-devices.yaml' \
    -exec sed -i -e 's/^title: \(.*\) [bB]indings\?\.\?$/title: \1/' {} \;

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Matti Vaittinen <mazziesaccount@gmail.com> # ROHM
Acked-by: Ulf Hansson <ulf.hansson@linaro.org> # MMC
Acked-by: Stephen Boyd <sboyd@kernel.org> # clk
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> # input
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> # media
Acked-by: Sebastian Reichel <sre@kernel.org> # power
Acked-by: Viresh Kumar <viresh.kumar@linaro.org> # cpufreq
Link: https://lore.kernel.org/r/20221216163815.522628-7-krzysztof.kozlowski@linaro.org
Signed-off-by: Rob Herring <robh@kernel.org>
2022-12-16 11:41:49 -06:00

174 lines
4.9 KiB
YAML

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/cpufreq/qcom-cpufreq-nvmem.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Technologies, Inc. NVMEM CPUFreq
maintainers:
- Ilia Lin <ilia.lin@kernel.org>
description: |
In certain Qualcomm Technologies, Inc. SoCs such as QCS404, The CPU supply
voltage is dynamically configured by Core Power Reduction (CPR) depending on
current CPU frequency and efuse values.
CPR provides a power domain with multiple levels that are selected depending
on the CPU OPP in use. The CPUFreq driver sets the CPR power domain level
according to the required OPPs defined in the CPU OPP tables.
select:
properties:
compatible:
contains:
enum:
- qcom,apq8064
- qcom,apq8096
- qcom,ipq8064
- qcom,msm8939
- qcom,msm8960
- qcom,msm8974
- qcom,msm8996
- qcom,qcs404
required:
- compatible
properties:
cpus:
type: object
patternProperties:
'^cpu@[0-9a-f]+$':
type: object
properties:
power-domains:
maxItems: 1
power-domain-names:
items:
- const: cpr
required:
- power-domains
- power-domain-names
patternProperties:
'^opp-table(-[a-z0-9]+)?$':
if:
properties:
compatible:
const: operating-points-v2-kryo-cpu
then:
patternProperties:
'^opp-?[0-9]+$':
required:
- required-opps
additionalProperties: true
examples:
- |
/ {
model = "Qualcomm Technologies, Inc. QCS404 EVB 1000";
compatible = "qcom,qcs404-evb-1000", "qcom,qcs404-evb", "qcom,qcs404";
#address-cells = <2>;
#size-cells = <2>;
cpus {
#address-cells = <1>;
#size-cells = <0>;
CPU0: cpu@100 {
device_type = "cpu";
compatible = "arm,cortex-a53";
reg = <0x100>;
enable-method = "psci";
cpu-idle-states = <&CPU_SLEEP_0>;
next-level-cache = <&L2_0>;
#cooling-cells = <2>;
clocks = <&apcs_glb>;
operating-points-v2 = <&cpu_opp_table>;
power-domains = <&cpr>;
power-domain-names = "cpr";
};
CPU1: cpu@101 {
device_type = "cpu";
compatible = "arm,cortex-a53";
reg = <0x101>;
enable-method = "psci";
cpu-idle-states = <&CPU_SLEEP_0>;
next-level-cache = <&L2_0>;
#cooling-cells = <2>;
clocks = <&apcs_glb>;
operating-points-v2 = <&cpu_opp_table>;
power-domains = <&cpr>;
power-domain-names = "cpr";
};
CPU2: cpu@102 {
device_type = "cpu";
compatible = "arm,cortex-a53";
reg = <0x102>;
enable-method = "psci";
cpu-idle-states = <&CPU_SLEEP_0>;
next-level-cache = <&L2_0>;
#cooling-cells = <2>;
clocks = <&apcs_glb>;
operating-points-v2 = <&cpu_opp_table>;
power-domains = <&cpr>;
power-domain-names = "cpr";
};
CPU3: cpu@103 {
device_type = "cpu";
compatible = "arm,cortex-a53";
reg = <0x103>;
enable-method = "psci";
cpu-idle-states = <&CPU_SLEEP_0>;
next-level-cache = <&L2_0>;
#cooling-cells = <2>;
clocks = <&apcs_glb>;
operating-points-v2 = <&cpu_opp_table>;
power-domains = <&cpr>;
power-domain-names = "cpr";
};
};
cpu_opp_table: opp-table-cpu {
compatible = "operating-points-v2-kryo-cpu";
opp-shared;
opp-1094400000 {
opp-hz = /bits/ 64 <1094400000>;
required-opps = <&cpr_opp1>;
};
opp-1248000000 {
opp-hz = /bits/ 64 <1248000000>;
required-opps = <&cpr_opp2>;
};
opp-1401600000 {
opp-hz = /bits/ 64 <1401600000>;
required-opps = <&cpr_opp3>;
};
};
cpr_opp_table: opp-table-cpr {
compatible = "operating-points-v2-qcom-level";
cpr_opp1: opp1 {
opp-level = <1>;
qcom,opp-fuse-level = <1>;
};
cpr_opp2: opp2 {
opp-level = <2>;
qcom,opp-fuse-level = <2>;
};
cpr_opp3: opp3 {
opp-level = <3>;
qcom,opp-fuse-level = <3>;
};
};
};