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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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a95571d8ff
Add Epoch Subsystem (EPSS) L3 interconnect provider binding for QCS8300 SoC. As the EPSS hardware in QCS8300 and SA8775P are same, added a family-level compatible for SA877P SoC. This shared fallback compatible allows grouping of SoCs with similar hardware, reducing the need to explicitly list each variant in the driver match table. Signed-off-by: Raviteja Laggyshetty <raviteja.laggyshetty@oss.qualcomm.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20250711102540.143-2-raviteja.laggyshetty@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
85 lines
1.9 KiB
YAML
85 lines
1.9 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/interconnect/qcom,osm-l3.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Qualcomm Operating State Manager (OSM) L3 Interconnect Provider
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maintainers:
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- Sibi Sankar <quic_sibis@quicinc.com>
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description:
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L3 cache bandwidth requirements on Qualcomm SoCs is serviced by the OSM.
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The OSM L3 interconnect provider aggregates the L3 bandwidth requests
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from CPU/GPU and relays it to the OSM.
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properties:
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compatible:
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oneOf:
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- items:
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- enum:
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- qcom,sc7180-osm-l3
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- qcom,sc8180x-osm-l3
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- qcom,sdm670-osm-l3
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- qcom,sdm845-osm-l3
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- qcom,sm6350-osm-l3
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- qcom,sm8150-osm-l3
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- const: qcom,osm-l3
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- items:
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- enum:
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- qcom,sa8775p-epss-l3
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- qcom,sc7280-epss-l3
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- qcom,sc8280xp-epss-l3
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- qcom,sm6375-cpucp-l3
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- qcom,sm8250-epss-l3
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- qcom,sm8350-epss-l3
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- qcom,sm8650-epss-l3
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- const: qcom,epss-l3
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- items:
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- enum:
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- qcom,qcs8300-epss-l3
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- const: qcom,sa8775p-epss-l3
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- const: qcom,epss-l3
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reg:
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maxItems: 1
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clocks:
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items:
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- description: xo clock
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- description: alternate clock
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clock-names:
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items:
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- const: xo
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- const: alternate
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'#interconnect-cells':
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const: 1
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required:
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- compatible
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- reg
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- clocks
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- clock-names
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- '#interconnect-cells'
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additionalProperties: false
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examples:
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- |
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#define GPLL0 165
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#define RPMH_CXO_CLK 0
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osm_l3: interconnect@17d41000 {
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compatible = "qcom,sdm845-osm-l3", "qcom,osm-l3";
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reg = <0x17d41000 0x1400>;
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clocks = <&rpmhcc RPMH_CXO_CLK>, <&gcc GPLL0>;
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clock-names = "xo", "alternate";
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#interconnect-cells = <1>;
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};
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