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Diffstat (limited to 'Documentation/devicetree/bindings/arm/qcom,coresight-tpdm.yaml')
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diff --git a/Documentation/devicetree/bindings/arm/qcom,coresight-tpdm.yaml b/Documentation/devicetree/bindings/arm/qcom,coresight-tpdm.yaml new file mode 100644 index 000000000000..5c08342664ea --- /dev/null +++ b/Documentation/devicetree/bindings/arm/qcom,coresight-tpdm.yaml @@ -0,0 +1,93 @@ +# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause +# Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved. +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/arm/qcom,coresight-tpdm.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Trace, Profiling and Diagnostics Monitor - TPDM + +description: | + The TPDM or Monitor serves as data collection component for various dataset + types specified in the QPMDA spec. It covers Implementation defined ((ImplDef), + Basic Counts (BC), Tenure Counts (TC), Continuous Multi-Bit (CMB), and Discrete + Single Bit (DSB). It performs data collection in the data producing clock + domain and transfers it to the data collection time domain, generally ATB + clock domain. + + The primary use case of the TPDM is to collect data from different data + sources and send it to a TPDA for packetization, timestamping, and funneling. + +maintainers: + - Mao Jinlong <quic_jinlmao@quicinc.com> + - Tao Zhang <quic_taozha@quicinc.com> + +# Need a custom select here or 'arm,primecell' will match on lots of nodes +select: + properties: + compatible: + contains: + enum: + - qcom,coresight-tpdm + required: + - compatible + +properties: + $nodename: + pattern: "^tpdm(@[0-9a-f]+)$" + compatible: + items: + - const: qcom,coresight-tpdm + - const: arm,primecell + + reg: + minItems: 1 + maxItems: 2 + + clocks: + maxItems: 1 + + clock-names: + items: + - const: apb_pclk + + out-ports: + description: | + Output connections from the TPDM to coresight funnel/TPDA. + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port: + description: Output connection from the TPDM to coresight + funnel/TPDA. + $ref: /schemas/graph.yaml#/properties/port + +required: + - compatible + - reg + - clocks + - clock-names + +additionalProperties: false + +examples: + # minimum TPDM definition. TPDM connect to coresight TPDA. + - | + tpdm@684c000 { + compatible = "qcom,coresight-tpdm", "arm,primecell"; + reg = <0x0684c000 0x1000>; + + clocks = <&aoss_qmp>; + clock-names = "apb_pclk"; + + out-ports { + port { + tpdm_prng_out_tpda_qdss: endpoint { + remote-endpoint = + <&tpda_qdss_in_tpdm_prng>; + }; + }; + }; + }; + +... |