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diff --git a/Documentation/devicetree/bindings/display/msm/gmu.yaml b/Documentation/devicetree/bindings/display/msm/gmu.yaml new file mode 100644 index 000000000..67fdeeaba --- /dev/null +++ b/Documentation/devicetree/bindings/display/msm/gmu.yaml @@ -0,0 +1,251 @@ +# SPDX-License-Identifier: GPL-2.0-only +# Copyright 2019-2020, The Linux Foundation, All Rights Reserved +%YAML 1.2 +--- + +$id: "http://devicetree.org/schemas/display/msm/gmu.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: Devicetree bindings for the GMU attached to certain Adreno GPUs + +maintainers: + - Rob Clark <robdclark@gmail.com> + +description: | + These bindings describe the Graphics Management Unit (GMU) that is attached + to members of the Adreno A6xx GPU family. The GMU provides on-device power + management and support to improve power efficiency and reduce the load on + the CPU. + +properties: + compatible: + items: + - pattern: '^qcom,adreno-gmu-6[0-9][0-9]\.[0-9]$' + - const: qcom,adreno-gmu + + reg: + minItems: 3 + maxItems: 4 + + reg-names: + minItems: 3 + maxItems: 4 + + clocks: + minItems: 4 + maxItems: 7 + + clock-names: + minItems: 4 + maxItems: 7 + + interrupts: + items: + - description: GMU HFI interrupt + - description: GMU interrupt + + + interrupt-names: + items: + - const: hfi + - const: gmu + + power-domains: + items: + - description: CX power domain + - description: GX power domain + + power-domain-names: + items: + - const: cx + - const: gx + + iommus: + maxItems: 1 + + operating-points-v2: true + + opp-table: + type: object + +required: + - compatible + - reg + - reg-names + - clocks + - clock-names + - interrupts + - interrupt-names + - power-domains + - power-domain-names + - iommus + - operating-points-v2 + +additionalProperties: false + +allOf: + - if: + properties: + compatible: + contains: + enum: + - qcom,adreno-gmu-618.0 + - qcom,adreno-gmu-630.2 + then: + properties: + reg: + items: + - description: Core GMU registers + - description: GMU PDC registers + - description: GMU PDC sequence registers + reg-names: + items: + - const: gmu + - const: gmu_pdc + - const: gmu_pdc_seq + clocks: + items: + - description: GMU clock + - description: GPU CX clock + - description: GPU AXI clock + - description: GPU MEMNOC clock + clock-names: + items: + - const: gmu + - const: cxo + - const: axi + - const: memnoc + + - if: + properties: + compatible: + contains: + enum: + - qcom,adreno-gmu-635.0 + then: + properties: + reg: + items: + - description: Core GMU registers + - description: Resource controller registers + - description: GMU PDC registers + reg-names: + items: + - const: gmu + - const: rscc + - const: gmu_pdc + clocks: + items: + - description: GMU clock + - description: GPU CX clock + - description: GPU AXI clock + - description: GPU MEMNOC clock + - description: GPU AHB clock + - description: GPU HUB CX clock + - description: GPU SMMU vote clock + clock-names: + items: + - const: gmu + - const: cxo + - const: axi + - const: memnoc + - const: ahb + - const: hub + - const: smmu_vote + + - if: + properties: + compatible: + contains: + enum: + - qcom,adreno-gmu-640.1 + then: + properties: + reg: + items: + - description: Core GMU registers + - description: GMU PDC registers + - description: GMU PDC sequence registers + reg-names: + items: + - const: gmu + - const: gmu_pdc + - const: gmu_pdc_seq + + - if: + properties: + compatible: + contains: + enum: + - qcom,adreno-gmu-650.2 + then: + properties: + reg: + items: + - description: Core GMU registers + - description: Resource controller registers + - description: GMU PDC registers + - description: GMU PDC sequence registers + reg-names: + items: + - const: gmu + - const: rscc + - const: gmu_pdc + - const: gmu_pdc_seq + + - if: + properties: + compatible: + contains: + enum: + - qcom,adreno-gmu-640.1 + - qcom,adreno-gmu-650.2 + then: + properties: + clocks: + items: + - description: GPU AHB clock + - description: GMU clock + - description: GPU CX clock + - description: GPU AXI clock + - description: GPU MEMNOC clock + clock-names: + items: + - const: ahb + - const: gmu + - const: cxo + - const: axi + - const: memnoc + +examples: + - | + #include <dt-bindings/clock/qcom,gpucc-sdm845.h> + #include <dt-bindings/clock/qcom,gcc-sdm845.h> + #include <dt-bindings/interrupt-controller/irq.h> + #include <dt-bindings/interrupt-controller/arm-gic.h> + + gmu: gmu@506a000 { + compatible="qcom,adreno-gmu-630.2", "qcom,adreno-gmu"; + + reg = <0x506a000 0x30000>, + <0xb280000 0x10000>, + <0xb480000 0x10000>; + reg-names = "gmu", "gmu_pdc", "gmu_pdc_seq"; + + clocks = <&gpucc GPU_CC_CX_GMU_CLK>, + <&gpucc GPU_CC_CXO_CLK>, + <&gcc GCC_DDRSS_GPU_AXI_CLK>, + <&gcc GCC_GPU_MEMNOC_GFX_CLK>; + clock-names = "gmu", "cxo", "axi", "memnoc"; + + interrupts = <GIC_SPI 304 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 305 IRQ_TYPE_LEVEL_HIGH>; + interrupt-names = "hfi", "gmu"; + + power-domains = <&gpucc GPU_CX_GDSC>, + <&gpucc GPU_GX_GDSC>; + power-domain-names = "cx", "gx"; + + iommus = <&adreno_smmu 5>; + operating-points-v2 = <&gmu_opp_table>; + }; |