diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/cpu-freq/cpu-drivers.rst | 3 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/cpufreq/cpufreq-mediatek-hw.yaml | 70 | ||||
| -rw-r--r-- | Documentation/translations/zh_CN/cpu-freq/cpu-drivers.rst | 2 |
3 files changed, 70 insertions, 5 deletions
diff --git a/Documentation/cpu-freq/cpu-drivers.rst b/Documentation/cpu-freq/cpu-drivers.rst index d84ededb66f9..3b32336a7803 100644 --- a/Documentation/cpu-freq/cpu-drivers.rst +++ b/Documentation/cpu-freq/cpu-drivers.rst @@ -75,9 +75,6 @@ And optionally .resume - A pointer to a per-policy resume function which is called with interrupts disabled and _before_ the governor is started again. - .ready - A pointer to a per-policy ready function which is called after - the policy is fully initialized. - .attr - A pointer to a NULL-terminated list of "struct freq_attr" which allow to export values to sysfs. diff --git a/Documentation/devicetree/bindings/cpufreq/cpufreq-mediatek-hw.yaml b/Documentation/devicetree/bindings/cpufreq/cpufreq-mediatek-hw.yaml new file mode 100644 index 000000000000..9cd42a64b13e --- /dev/null +++ b/Documentation/devicetree/bindings/cpufreq/cpufreq-mediatek-hw.yaml @@ -0,0 +1,70 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/cpufreq/cpufreq-mediatek-hw.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MediaTek's CPUFREQ Bindings + +maintainers: + - Hector Yuan <hector.yuan@mediatek.com> + +description: + CPUFREQ HW is a hardware engine used by MediaTek SoCs to + manage frequency in hardware. It is capable of controlling + frequency for multiple clusters. + +properties: + compatible: + const: mediatek,cpufreq-hw + + reg: + minItems: 1 + maxItems: 2 + description: + Addresses and sizes for the memory of the HW bases in + each frequency domain. Each entry corresponds to + a register bank for each frequency domain present. + + "#performance-domain-cells": + description: + Number of cells in a performance domain specifier. + Set const to 1 here for nodes providing multiple + performance domains. + const: 1 + +required: + - compatible + - reg + - "#performance-domain-cells" + +additionalProperties: false + +examples: + - | + cpus { + #address-cells = <1>; + #size-cells = <0>; + + cpu0: cpu@0 { + device_type = "cpu"; + compatible = "arm,cortex-a55"; + enable-method = "psci"; + performance-domains = <&performance 0>; + reg = <0x000>; + }; + }; + + /* ... */ + + soc { + #address-cells = <2>; + #size-cells = <2>; + + performance: performance-controller@11bc00 { + compatible = "mediatek,cpufreq-hw"; + reg = <0 0x0011bc10 0 0x120>, <0 0x0011bd30 0 0x120>; + + #performance-domain-cells = <1>; + }; + }; diff --git a/Documentation/translations/zh_CN/cpu-freq/cpu-drivers.rst b/Documentation/translations/zh_CN/cpu-freq/cpu-drivers.rst index 5ae9cfa2ec55..334f30ae198b 100644 --- a/Documentation/translations/zh_CN/cpu-freq/cpu-drivers.rst +++ b/Documentation/translations/zh_CN/cpu-freq/cpu-drivers.rst @@ -80,8 +80,6 @@ CPUfreq核心层注册一个cpufreq_driver结构体。 .resume - 一个指向per-policy恢复函数的指针，该函数在关中断且在调节器再一次开始前被 调用。 - .ready - 一个指向per-policy准备函数的指针，该函数在策略完全初始化之后被调用。 - .attr - 一个指向NULL结尾的"struct freq_attr"列表的指针，该函数允许导出值到 sysfs。 |