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Merge branch 'pm-opp' into linux-next
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* pm-opp:
  Documentation: EM: Describe new registration method using DT
  OPP: Add support of "opp-microwatt" for EM registration
  PM: EM: add macro to set .active_power() callback conditionally
  OPP: Add "opp-microwatt" supporting code
  dt-bindings: opp: Add "opp-microwatt" entry in the OPP
  dt-bindings: power: avs: qcom,cpr: Convert to DT schema
  arm64: dts: qcom: qcs404: Rename CPU and CPR OPP tables
  arm64: dts: qcom: msm8996: Rename cluster OPP tables
  dt-bindings: opp: Convert qcom-nvmem-cpufreq to DT schema
  dt-bindings: opp: qcom-opp: Convert to DT schema
  arm64: dts: qcom: msm8996-mtp: Add msm8996 compatible
  dt-bindings: arm: qcom: Add msm8996 and apq8096 compatibles
  opp: Expose of-node's name in debugfs
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rafaeljw committed Mar 22, 2022
2 parents 03a06c3 + 0474bcc commit 81bbf3b
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16 changes: 15 additions & 1 deletion Documentation/devicetree/bindings/arm/qcom.yaml
Original file line number Diff line number Diff line change
Expand Up @@ -172,7 +172,21 @@ properties:
- const: qcom,apq8094

- items:
- const: qcom,msm8996-mtp
- enum:
- arrow,apq8096-db820c
- inforce,ifc6640
- const: qcom,apq8096-sbc
- const: qcom,apq8096

- items:
- enum:
- qcom,msm8996-mtp
- sony,dora-row
- sony,kagura-row
- sony,keyaki-row
- xiaomi,gemini
- xiaomi,scorpio
- const: qcom,msm8996

- items:
- enum:
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166 changes: 166 additions & 0 deletions Documentation/devicetree/bindings/cpufreq/qcom-cpufreq-nvmem.yaml
Original file line number Diff line number Diff line change
@@ -0,0 +1,166 @@
# 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 bindings

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,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";
compatible = "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>;
};
};
};
23 changes: 23 additions & 0 deletions Documentation/devicetree/bindings/opp/opp-v2-base.yaml
Original file line number Diff line number Diff line change
Expand Up @@ -93,6 +93,21 @@ patternProperties:
minItems: 1
maxItems: 8 # Should be enough regulators

opp-microwatt:
description: |
The power for the OPP in micro-Watts.
Entries for multiple regulators shall be provided in the same field
separated by angular brackets <>. If current values aren't required
for a regulator, then it shall be filled with 0. If power values
aren't required for any of the regulators, then this field is not
required. The OPP binding doesn't provide any provisions to relate the
values to their power supplies or the order in which the supplies need
to be configured and that is left for the implementation specific
binding.
minItems: 1
maxItems: 8 # Should be enough regulators

opp-level:
description:
A value representing the performance level of the device.
Expand Down Expand Up @@ -203,6 +218,14 @@ patternProperties:
minItems: 1
maxItems: 8 # Should be enough regulators

'^opp-microwatt':
description:
Named opp-microwatt property. Similar to opp-microamp property,
but for microwatt instead.
$ref: /schemas/types.yaml#/definitions/uint32-array
minItems: 1
maxItems: 8 # Should be enough regulators

dependencies:
opp-avg-kBps: [ opp-peak-kBps ]

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