Staging
v0.8.1
v0.8.1
https://github.com/torvalds/linux
Tip revision: 88084a3df1672e131ddc1b4e39eeacfd39864acf authored by Linus Torvalds on 03 July 2022, 22:39:28 UTC
Linux 5.19-rc5
Linux 5.19-rc5
Tip revision: 88084a3
arm,mali-midgard.yaml
# 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: true
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>;
};
};
...