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Diffstat (limited to 'Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml')
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diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml new file mode 100644 index 000000000..78964c140 --- /dev/null +++ b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml @@ -0,0 +1,237 @@ +# SPDX-License-Identifier: GPL-2.0-only +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/gpu/arm,mali-bifrost.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: ARM Mali Bifrost GPU + +maintainers: + - Rob Herring <robh@kernel.org> + +properties: + $nodename: + pattern: '^gpu@[a-f0-9]+$' + + compatible: + oneOf: + - items: + - enum: + - amlogic,meson-g12a-mali + - mediatek,mt8183-mali + - realtek,rtd1619-mali + - renesas,r9a07g044-mali + - renesas,r9a07g054-mali + - rockchip,px30-mali + - rockchip,rk3568-mali + - const: arm,mali-bifrost # Mali Bifrost GPU model/revision is fully discoverable + - items: + - enum: + - mediatek,mt8192-mali + - const: arm,mali-valhall-jm # Mali Valhall GPU model/revision is fully discoverable + + reg: + maxItems: 1 + + interrupts: + minItems: 3 + items: + - description: Job interrupt + - description: MMU interrupt + - description: GPU interrupt + - description: Event interrupt + + interrupt-names: + minItems: 3 + items: + - const: job + - const: mmu + - const: gpu + - const: event + + clocks: + minItems: 1 + maxItems: 3 + + clock-names: true + + mali-supply: true + + sram-supply: true + + operating-points-v2: true + + power-domains: + minItems: 1 + maxItems: 3 + + resets: + minItems: 1 + maxItems: 3 + + reset-names: true + + "#cooling-cells": + const: 2 + + dynamic-power-coefficient: + $ref: '/schemas/types.yaml#/definitions/uint32' + description: + A u32 value that represents the running time dynamic + power coefficient in units of uW/MHz/V^2. The + coefficient can either be calculated from power + measurements or derived by analysis. + + The dynamic power consumption of the GPU is + proportional to the square of the Voltage (V) and + the clock frequency (f). The coefficient is used to + calculate the dynamic power as below - + + Pdyn = dynamic-power-coefficient * V^2 * f + + where voltage is in V, frequency is in MHz. + + dma-coherent: true + +required: + - compatible + - reg + - interrupts + - interrupt-names + - clocks + +additionalProperties: false + +allOf: + - if: + properties: + compatible: + contains: + const: amlogic,meson-g12a-mali + then: + required: + - resets + - if: + properties: + compatible: + contains: + enum: + - renesas,r9a07g044-mali + - renesas,r9a07g054-mali + then: + properties: + interrupts: + minItems: 4 + interrupt-names: + minItems: 4 + clocks: + minItems: 3 + clock-names: + items: + - const: gpu + - const: bus + - const: bus_ace + resets: + minItems: 3 + reset-names: + items: + - const: rst + - const: axi_rst + - const: ace_rst + required: + - clock-names + - power-domains + - resets + - reset-names + - if: + properties: + compatible: + contains: + const: mediatek,mt8183-mali + then: + properties: + power-domains: + minItems: 3 + power-domain-names: + items: + - const: core0 + - const: core1 + - const: core2 + + required: + - sram-supply + - power-domains + - power-domain-names + else: + properties: + power-domains: + maxItems: 1 + sram-supply: false + - if: + properties: + compatible: + contains: + const: rockchip,rk3568-mali + then: + properties: + clocks: + minItems: 2 + clock-names: + items: + - const: gpu + - const: bus + required: + - clock-names + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + #include <dt-bindings/interrupt-controller/arm-gic.h> + + gpu@ffe40000 { + compatible = "amlogic,meson-g12a-mali", "arm,mali-bifrost"; + reg = <0xffe40000 0x10000>; + interrupts = <GIC_SPI 160 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 161 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 162 IRQ_TYPE_LEVEL_HIGH>; + interrupt-names = "job", "mmu", "gpu"; + clocks = <&clk 1>; + mali-supply = <&vdd_gpu>; + operating-points-v2 = <&gpu_opp_table>; + resets = <&reset 0>, <&reset 1>; + }; + + gpu_opp_table: opp-table { + compatible = "operating-points-v2"; + + opp-533000000 { + opp-hz = /bits/ 64 <533000000>; + opp-microvolt = <1250000>; + }; + opp-450000000 { + opp-hz = /bits/ 64 <450000000>; + opp-microvolt = <1150000>; + }; + opp-400000000 { + opp-hz = /bits/ 64 <400000000>; + opp-microvolt = <1125000>; + }; + opp-350000000 { + opp-hz = /bits/ 64 <350000000>; + opp-microvolt = <1075000>; + }; + opp-266000000 { + opp-hz = /bits/ 64 <266000000>; + opp-microvolt = <1025000>; + }; + opp-160000000 { + opp-hz = /bits/ 64 <160000000>; + opp-microvolt = <925000>; + }; + opp-100000000 { + opp-hz = /bits/ 64 <100000000>; + opp-microvolt = <912500>; + }; + }; + +... |