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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2021-09-08 16:42:02 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2021-09-08 16:42:02 +0200
commiteabf9e616ec6e7864458371390ef7771dfb3ad0a (patch)
tree68a516485313eecf7368202c2b282117ebb8b901 /Documentation/devicetree
parent5cbba60596b1f32f637190ca9ed5b1acdadb852c (diff)
parent27de8d597020755b6bdeca7036463ca6d0b4c295 (diff)
downloadlwn-eabf9e616ec6e7864458371390ef7771dfb3ad0a.tar.gz
lwn-eabf9e616ec6e7864458371390ef7771dfb3ad0a.zip
Merge branch 'pm-cpufreq'
* pm-cpufreq: Revert "cpufreq: intel_pstate: Process HWP Guaranteed change notification" cpufreq: mediatek-hw: Add support for CPUFREQ HW cpufreq: Add of_perf_domain_get_sharing_cpumask dt-bindings: cpufreq: add bindings for MediaTek cpufreq HW cpufreq: Remove ready() callback cpufreq: sh: Remove sh_cpufreq_cpu_ready() cpufreq: acpi: Remove acpi_cpufreq_cpu_ready() cpufreq: qcom-hw: Set dvfs_possible_from_any_cpu cpufreq driver flag cpufreq: blocklist more Qualcomm platforms in cpufreq-dt-platdev cpufreq: qcom-cpufreq-hw: Add dcvs interrupt support cpufreq: scmi: Use .register_em() to register with energy model cpufreq: vexpress: Use .register_em() to register with energy model cpufreq: scpi: Use .register_em() to register with energy model cpufreq: qcom-cpufreq-hw: Use .register_em() to register with energy model cpufreq: omap: Use .register_em() to register with energy model cpufreq: mediatek: Use .register_em() to register with energy model cpufreq: imx6q: Use .register_em() to register with energy model cpufreq: dt: Use .register_em() to register with energy model cpufreq: Add callback to register with energy model cpufreq: vexpress: Set CPUFREQ_IS_COOLING_DEV flag
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r--Documentation/devicetree/bindings/cpufreq/cpufreq-mediatek-hw.yaml70
1 files changed, 70 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/cpufreq/cpufreq-mediatek-hw.yaml b/Documentation/devicetree/bindings/cpufreq/cpufreq-mediatek-hw.yaml
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@@ -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>;
+ };
+ };