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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/gpu/arm,mali-valhall-csf.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: ARM Mali Valhall GPU
maintainers:
- Liviu Dudau <liviu.dudau@arm.com>
- Boris Brezillon <boris.brezillon@collabora.com>
properties:
$nodename:
pattern: '^gpu@[a-f0-9]+$'
compatible:
oneOf:
- items:
- enum:
- rockchip,rk3588-mali
- const: arm,mali-valhall-csf # Mali Valhall GPU model/revision is fully discoverable
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: 3
clock-names:
minItems: 1
items:
- const: core
- const: coregroup
- const: stacks
mali-supply: true
operating-points-v2: true
opp-table:
type: object
power-domains:
minItems: 1
maxItems: 5
power-domain-names:
minItems: 1
maxItems: 5
sram-supply: 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
- mali-supply
additionalProperties: false
allOf:
- if:
properties:
compatible:
contains:
const: rockchip,rk3588-mali
then:
properties:
clocks:
minItems: 3
power-domains:
maxItems: 1
power-domain-names: false
examples:
- |
#include <dt-bindings/clock/rockchip,rk3588-cru.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/power/rk3588-power.h>
gpu: gpu@fb000000 {
compatible = "rockchip,rk3588-mali", "arm,mali-valhall-csf";
reg = <0xfb000000 0x200000>;
interrupts = <GIC_SPI 92 IRQ_TYPE_LEVEL_HIGH 0>,
<GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH 0>,
<GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH 0>;
interrupt-names = "job", "mmu", "gpu";
clock-names = "core", "coregroup", "stacks";
clocks = <&cru CLK_GPU>, <&cru CLK_GPU_COREGROUP>,
<&cru CLK_GPU_STACKS>;
power-domains = <&power RK3588_PD_GPU>;
operating-points-v2 = <&gpu_opp_table>;
mali-supply = <&vdd_gpu_s0>;
sram-supply = <&vdd_gpu_mem_s0>;
gpu_opp_table: opp-table {
compatible = "operating-points-v2";
opp-300000000 {
opp-hz = /bits/ 64 <300000000>;
opp-microvolt = <675000 675000 850000>;
};
opp-400000000 {
opp-hz = /bits/ 64 <400000000>;
opp-microvolt = <675000 675000 850000>;
};
};
};
...
|
