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Wysocki" , Viresh Kumar , Matthias Brugger , Rob Herring , , Subject: [PATCH v10 2/2] dt-bindings: cpufreq: add bindings for MediaTek cpufreq HW Date: Tue, 29 Dec 2020 14:17:09 +0800 Message-ID: <1609222629-2979-3-git-send-email-hector.yuan@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1609222629-2979-1-git-send-email-hector.yuan@mediatek.com> References: <1609222629-2979-1-git-send-email-hector.yuan@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201229_011732_080473_3D6E9F0D X-CRM114-Status: GOOD ( 14.74 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: hector.yuan@mediatek.com, wsd_upstream@mediatek.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: "Hector.Yuan" Add devicetree bindings for MediaTek HW driver. Signed-off-by: Hector.Yuan --- .../bindings/cpufreq/cpufreq-mediatek-hw.yaml | 116 ++++++++++++++++++++ 1 file changed, 116 insertions(+) create mode 100644 Documentation/devicetree/bindings/cpufreq/cpufreq-mediatek-hw.yaml 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 0000000..53e0eb3 --- /dev/null +++ b/Documentation/devicetree/bindings/cpufreq/cpufreq-mediatek-hw.yaml @@ -0,0 +1,116 @@ +# 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 + +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. + +required: + - compatible + - reg + +additionalProperties: true + +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>; + }; + + cpu1: cpu@100 { + device_type = "cpu"; + compatible = "arm,cortex-a55"; + enable-method = "psci"; + performance-domains = <&performance 0>; + reg = <0x100>; + }; + + cpu2: cpu@200 { + device_type = "cpu"; + compatible = "arm,cortex-a55"; + enable-method = "psci"; + performance-domains = <&performance 0>; + reg = <0x200>; + }; + + cpu3: cpu@300 { + device_type = "cpu"; + compatible = "arm,cortex-a55"; + enable-method = "psci"; + performance-domains = <&performance 0>; + reg = <0x300>; + }; + + cpu4: cpu@400 { + device_type = "cpu"; + compatible = "arm,cortex-a55"; + enable-method = "psci"; + performance-domains = <&performance 1>; + reg = <0x400>; + }; + + cpu5: cpu@500 { + device_type = "cpu"; + compatible = "arm,cortex-a55"; + enable-method = "psci"; + performance-domains = <&performance 1>; + reg = <0x500>; + }; + + cpu6: cpu@600 { + device_type = "cpu"; + compatible = "arm,cortex-a75"; + enable-method = "psci"; + performance-domains = <&performance 1>; + reg = <0x600>; + }; + + cpu7: cpu@700 { + device_type = "cpu"; + compatible = "arm,cortex-a75"; + enable-method = "psci"; + performance-domains = <&performance 1>; + reg = <0x700>; + }; + }; + + /* ... */ + + 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>; + }; + }; -- 1.7.9.5 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel