Add a new schema which extends opp-v2 to support a new vendor specific property required for Adreno GPUs found in Qualcomm's SoCs. The new property called "qcom,opp-acd-level" carries a u32 value recommended for each opp needs to be shared to GMU during runtime. Signed-off-by: Akhil P Oommen <quic_akhilpo@xxxxxxxxxxx> --- .../bindings/opp/opp-v2-qcom-adreno.yaml | 84 ++++++++++++++++++++++ 1 file changed, 84 insertions(+) diff --git a/Documentation/devicetree/bindings/opp/opp-v2-qcom-adreno.yaml b/Documentation/devicetree/bindings/opp/opp-v2-qcom-adreno.yaml new file mode 100644 index 000000000000..9fb828e9da86 --- /dev/null +++ b/Documentation/devicetree/bindings/opp/opp-v2-qcom-adreno.yaml @@ -0,0 +1,84 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/opp/opp-v2-qcom-adreno.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm Adreno compatible OPP supply + +description: + Adreno GPUs present in Qualcomm's Snapdragon chipsets uses an OPP specific + ACD related information tailored for the specific chipset. This binding + provides the information needed to describe such a hardware value. + +maintainers: + - Rob Clark <robdclark@xxxxxxxxx> + +allOf: + - $ref: opp-v2-base.yaml# + +properties: + compatible: + const: operating-points-v2-adreno + +patternProperties: + '^opp-?[0-9]+$': + type: object + additionalProperties: false + + properties: + opp-hz: true + + opp-level: true + + opp-peak-kBps: true + + opp-supported-hw: true + + qcom,opp-acd-level: + description: | + A positive value representing the acd level associated with this + OPP node. This value is shared to GMU during GPU wake up. It may + not be present for some OPPs and GMU will disable ACD while + transitioning to that OPP. + $ref: /schemas/types.yaml#/definitions/uint32 + + required: + - opp-hz + - opp-level + +required: + - compatible + +additionalProperties: false + +examples: + - | + + #include <dt-bindings/power/qcom-rpmpd.h> + + gpu_opp_table: opp-table { + compatible = "operating-points-v2-adreno"; + + opp-550000000 { + opp-hz = /bits/ 64 <550000000>; + opp-level = <RPMH_REGULATOR_LEVEL_SVS>; + opp-peak-kBps = <6074219>; + qcom,opp-acd-level = <0xc0285ffd>; + }; + + opp-390000000 { + opp-hz = /bits/ 64 <390000000>; + opp-level = <RPMH_REGULATOR_LEVEL_LOW_SVS>; + opp-peak-kBps = <3000000>; + qcom,opp-acd-level = <0xc0285ffd>; + }; + + opp-300000000 { + opp-hz = /bits/ 64 <300000000>; + opp-level = <RPMH_REGULATOR_LEVEL_LOW_SVS_D1>; + opp-peak-kBps = <2136719>; + /* Intentionally left out qcom,opp-acd-level property here */ + }; + + }; -- 2.45.2
