Hi On Tue, 12 Apr 2022 at 13:51, Mao Jinlong <quic_jinlmao@xxxxxxxxxxx> wrote: > > Adds new coresight-tpda.yaml file describing the bindings required > to define tpda in the device trees. > > Signed-off-by: Tao Zhang <quic_taozha@xxxxxxxxxxx> > Signed-off-by: Mao Jinlong <quic_jinlmao@xxxxxxxxxxx> > --- > .../bindings/arm/coresight-tpda.yaml | 119 ++++++++++++++++++ > 1 file changed, 119 insertions(+) > create mode 100644 Documentation/devicetree/bindings/arm/coresight-tpda.yaml > > diff --git a/Documentation/devicetree/bindings/arm/coresight-tpda.yaml b/Documentation/devicetree/bindings/arm/coresight-tpda.yaml > new file mode 100644 > index 000000000000..2c79de0a7928 > --- /dev/null > +++ b/Documentation/devicetree/bindings/arm/coresight-tpda.yaml > @@ -0,0 +1,119 @@ > +# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause > +# Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved. > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/arm/coresight-tpda.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Trace, Profiling and Diagnostics Aggregator - TPDA > + > +description: | > + TPDAs are responsible for packetization and timestamping of data sets > + utilizing the MIPI STPv2 packet protocol. Pulling data sets from one or > + more attached TPDM and pushing the resultant (packetized) data out a > + master ATB interface. Performing an arbitrated ATB interleaving (funneling) > + task for free-flowing data from TPDM (i.e. CMB and DSB data set flows). > + > +maintainers: > + - Suzuki K Poulose <suzuki.poulose@xxxxxxx> > + - Mathieu Poirier <mathieu.poirier@xxxxxxxxxx> > + as mentioned in patch 03 - these should be bindings maintainers. with the above change Reviewed by: Mike Leach <mike.leach@xxxxxxxxxx> > +properties: > + $nodename: > + pattern: "^tpda(@[0-9a-f]+)$" > + compatible: > + items: > + - const: qcom,coresight-tpda > + - const: arm,primecell > + > + reg: > + maxItems: 1 > + > + clocks: > + maxItems: 1 > + > + clock-names: > + items: > + - const: apb_pclk > + > + in-ports: > + type: object > + description: | > + Input connections from TPDM to TPDA > + $ref: /schemas/graph.yaml#/properties/ports > + > + properties: > + '#address-cells': > + const: 1 > + > + '#size-cells': > + const: 0 > + > + patternProperties: > + "^port@[0-9a-f]+$": > + type: object > + required: > + - reg > + > + required: > + - '#size-cells' > + - '#address-cells' > + > + out-ports: > + type: object > + description: | > + Output connections from the TPDA to legacy CoreSight trace bus. > + $ref: /schemas/graph.yaml#/properties/ports > + > + properties: > + port: > + description: > + Output connection from the TPDA to legacy CoreSight Trace bus. > + $ref: /schemas/graph.yaml#/properties/port > + > +required: > + - compatible > + - reg > + - clocks > + - clock-names > + - in-ports > + - out-ports > + > +additionalProperties: false > + > +examples: > + # minimum tpda definition. > + - | > + tpda@6004000 { > + compatible = "qcom,coresight-tpda", "arm,primecell"; > + reg = <0x6004000 0x1000>; > + > + qcom,tpda-atid = <65>; > + > + clocks = <&aoss_qmp>; > + clock-names = "apb_pclk"; > + > + in-ports { > + #address-cells = <1>; > + #size-cells = <0>; > + > + port@0 { > + reg = <0>; > + tpda_qdss_0_in_tpdm_dcc: endpoint { > + remote-endpoint = > + <&tpdm_dcc_out_tpda_qdss_0>; > + }; > + }; > + }; > + > + out-ports { > + port { > + tpda_qdss_out_funnel_in0: endpoint { > + remote-endpoint = > + <&funnel_in0_in_tpda_qdss>; > + }; > + }; > + }; > + }; > + > +... > -- > 2.17.1 > -- Mike Leach Principal Engineer, ARM Ltd. Manchester Design Centre. UK
