Adds new coresight-tpdm.yaml file describing the bindings required to define tpdm in the device trees. Signed-off-by: Tao Zhang <quic_taozha@xxxxxxxxxxx> Signed-off-by: Mao Jinlong <quic_jinlmao@xxxxxxxxxxx> --- .../bindings/arm/coresight-tpdm.yaml | 83 +++++++++++++++++++ .../devicetree/bindings/arm/coresight.txt | 7 ++ MAINTAINERS | 1 + 3 files changed, 91 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/coresight-tpdm.yaml diff --git a/Documentation/devicetree/bindings/arm/coresight-tpdm.yaml b/Documentation/devicetree/bindings/arm/coresight-tpdm.yaml new file mode 100644 index 000000000000..63b0583afcfc --- /dev/null +++ b/Documentation/devicetree/bindings/arm/coresight-tpdm.yaml @@ -0,0 +1,83 @@ +# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause +# Copyright (c) 2021 Qualcomm Innovation Center, Inc. All rights reserved. +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/arm/coresight-tpdm.yaml# +$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: + - Tao Zhang <quic_taozha@xxxxxxxxxxx> + - Mao Jinlong <quic_jinlmao@xxxxxxxxxxx> + - Suzuki K Poulose <suzuki.poulose@xxxxxxx> + - Mathieu Poirier <mathieu.poirier@xxxxxxxxxx> + +properties: + $nodename: + pattern: "^tpdm(@[0-9a-f]+)$" + compatible: + items: + - const: qcom,coresight-tpdm + - const: arm,primecell + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + clock-names: + items: + - const: apb_pclk + + out-ports: + description: | + Output connections from the TPDM to legacy CoreSight trace bus. + $ref: /schemas/graph.yaml#/properties/ports + properties: + port: + description: Output connection from the TPDM to legacy CoreSight + Trace bus. + $ref: /schemas/graph.yaml#/properties/port + +required: + - compatible + - reg + - clocks + - clock-names + +additionalProperties: false + +examples: + # minimum TPDM definition. + - | + tpdm@6980000 { + compatible = "qcom,coresight-tpdm", "arm,primecell"; + reg = <0x6980000 0x1000>; + + clocks = <&aoss_qmp>; + clock-names = "apb_pclk"; + + out-ports { + port { + tpdm_turing_out_funnel_turing: endpoint { + remote-endpoint = + <&funnel_turing_in_tpdm_turing>; + }; + }; + }; + }; + +... diff --git a/Documentation/devicetree/bindings/arm/coresight.txt b/Documentation/devicetree/bindings/arm/coresight.txt index c68d93a35b6c..f7ce8af48574 100644 --- a/Documentation/devicetree/bindings/arm/coresight.txt +++ b/Documentation/devicetree/bindings/arm/coresight.txt @@ -52,6 +52,10 @@ its hardware characteristcs. "arm,coresight-cti", "arm,primecell"; See coresight-cti.yaml for full CTI definitions. + - Trace, Profiling and Diagnostics Monitor (TPDM): + "qcom,coresight-tpdm", "arm,primecell"; + See coresight-tpdm.yaml for full TPDM definitions. + * reg: physical base address and length of the register set(s) of the component. @@ -82,6 +86,9 @@ its hardware characteristcs. * Required properties for Coresight Cross Trigger Interface (CTI) See coresight-cti.yaml for full CTI definitions. +* Required properties for Trace, Profiling and Diagnostics Monitor (TPDM) + See coresight-tpdm.yaml for full TPDM definitions. + * Required properties for devices that don't show up on the AMBA bus, such as non-configurable replicators and non-configurable funnels: diff --git a/MAINTAINERS b/MAINTAINERS index 59f39b3194f6..d763ba684b99 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -15566,6 +15566,7 @@ M: Jinlong Mao <quic_jinlmao@xxxxxxxxxxx> M: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx> M: Suzuki K Poulose <suzuki.poulose@xxxxxxx> S: Maintained +F: Documentation/devicetree/bindings/arm/coresight-tpdm.yaml F: drivers/hwtracing/coresight/coresight-tpdm.c QEMU MACHINE EMULATOR AND VIRTUALIZER SUPPORT -- 2.17.1
