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# SPDX-License-Identifier: GPL-2.0-only
%YAML 1.2
---
$id: http://devicetree.org/schemas/gpu/arm,mali-midgard.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: ARM Mali Midgard GPU
maintainers:
- Rob Herring <robh@kernel.org>
properties:
$nodename:
pattern: '^gpu@[a-f0-9]+$'
compatible:
oneOf:
- items:
- enum:
- samsung,exynos5250-mali
- const: arm,mali-t604
- items:
- enum:
- samsung,exynos5420-mali
- const: arm,mali-t628
- items:
- enum:
- allwinner,sun50i-h6-mali
- const: arm,mali-t720
- items:
- enum:
- amlogic,meson-gxm-mali
- realtek,rtd1295-mali
- const: arm,mali-t820
- items:
- enum:
- arm,juno-mali
- const: arm,mali-t624
- items:
- enum:
- rockchip,rk3288-mali
- samsung,exynos5433-mali
- const: arm,mali-t760
- items:
- enum:
- rockchip,rk3399-mali
- const: arm,mali-t860
# "arm,mali-t830"
# "arm,mali-t880"
reg:
maxItems: 1
interrupts:
items:
- description: Job interrupt
- description: MMU interrupt
- description: GPU interrupt
interrupt-names:
items:
- const: job
- const: mmu
- const: gpu
clocks:
minItems: 1
maxItems: 2
clock-names:
minItems: 1
items:
- const: core
- const: bus
mali-supply: true
opp-table:
type: object
power-domains:
maxItems: 1
resets:
minItems: 1
maxItems: 2
operating-points-v2: true
"#cooling-cells":
const: 2
dma-coherent: true
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.
required:
- compatible
- reg
- interrupts
- interrupt-names
- clocks
additionalProperties: false
allOf:
- if:
properties:
compatible:
contains:
const: allwinner,sun50i-h6-mali
then:
properties:
clocks:
minItems: 2
required:
- clock-names
- resets
- if:
properties:
compatible:
contains:
const: amlogic,meson-gxm-mali
then:
properties:
resets:
minItems: 2
required:
- resets
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
gpu@ffa30000 {
compatible = "rockchip,rk3288-mali", "arm,mali-t760";
reg = <0xffa30000 0x10000>;
interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "job", "mmu", "gpu";
clocks = <&cru 0>;
mali-supply = <&vdd_gpu>;
operating-points-v2 = <&gpu_opp_table>;
power-domains = <&power 0>;
#cooling-cells = <2>;
};
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>;
};
};
...
|
