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# 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#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: GMU attached to certain Adreno GPUs
maintainers:
- Rob Clark <robdclark@gmail.com>
description: |
These bindings describe the Graphics Management Unit (GMU) that is attached
to members of the Adreno A6xx GPU family. The GMU provides on-device power
management and support to improve power efficiency and reduce the load on
the CPU.
properties:
compatible:
oneOf:
- items:
- pattern: '^qcom,adreno-gmu-6[0-9][0-9]\.[0-9]$'
- const: qcom,adreno-gmu
- const: qcom,adreno-gmu-wrapper
reg:
minItems: 1
maxItems: 4
reg-names:
minItems: 1
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
- power-domains
- power-domain-names
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
- qcom,adreno-gmu-660.1
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
- if:
properties:
compatible:
contains:
const: qcom,adreno-gmu-wrapper
then:
properties:
reg:
items:
- description: GMU wrapper register space
reg-names:
items:
- const: gmu
else:
required:
- clocks
- clock-names
- interrupts
- interrupt-names
- iommus
- operating-points-v2
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>;
};
gmu_wrapper: gmu@596a000 {
compatible = "qcom,adreno-gmu-wrapper";
reg = <0x0596a000 0x30000>;
reg-names = "gmu";
power-domains = <&gpucc GPU_CX_GDSC>,
<&gpucc GPU_GX_GDSC>;
power-domain-names = "cx", "gx";
};
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