On 05/05/2023 11:24, Hao Zhang wrote: > Add new coresight-dummy.yaml file describing the bindings required > to define coresight dummy trace in the device trees. > > Signed-off-by: Hao Zhang <quic_hazha@xxxxxxxxxxx> > --- > .../bindings/arm/arm,coresight-dummy.yaml | 102 ++++++++++++++++++ > 1 file changed, 102 insertions(+) > create mode 100644 Documentation/devicetree/bindings/arm/arm,coresight-dummy.yaml > > diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-dummy.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-dummy.yaml > new file mode 100644 > index 000000000000..126518863eea > --- /dev/null > +++ b/Documentation/devicetree/bindings/arm/arm,coresight-dummy.yaml > @@ -0,0 +1,102 @@ > +# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/arm/arm,coresight-dummy.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: ARM Coresight Dummy component > + > +description: | > + Coresight Dummy Trace Module is for the specific devices that kernel > + don't have permission to access or configure, e.g., CoreSight TPDMs > + on Qualcomm platforms. So there need driver to register dummy devices > + as Coresight devices. It may also be used to define components that > + may not have any programming interfaces (e.g, static links), so that > + paths can be established in the driver. Provide Coresight API for > + dummy device operations, such as enabling and disabling dummy devices. > + Build the Coresight path for dummy sink or dummy source for debugging. > + > + The primary use case of the coresight dummy is to build path in kernel > + side for dummy sink and dummy source. > + > +maintainers: > + - Mao Jinlong <quic_jinlmao@xxxxxxxxxxx> > + - Tao Zhang <quic_taozha@xxxxxxxxxxx> > + - Hao Zhang <quic_hazha@xxxxxxxxxxx> > + - Yuanfang Zhang <quic_yuanfang@xxxxxxxxxxx> > + > +properties: > + compatible: > + items: You were asked to drop oneOf, not to replace with items. Drop items. Drop oneOf. It's just enum. > + - enum: > + - arm,coresight-dummy-sink > + - arm,coresight-dummy-source > + > + out-ports: > + $ref: /schemas/graph.yaml#/properties/ports > + > + properties: > + port: > + description: Output connection from the source to Coresight > + Trace bus. > + $ref: /schemas/graph.yaml#/properties/port > + > + in-ports: > + $ref: /schemas/graph.yaml#/properties/ports > + > + properties: > + port: > + description: Input connection from the Coresight Trace bus to > + dummy sink, such as Embedded USB debugger(EUD). > + $ref: /schemas/graph.yaml#/properties/port > + > +required: > + - compatible > + > +if: > + # If the compatible contains the below value > + properties: > + compatible: > + contains: > + const: arm,coresight-dummy-sink > + > +then: > + required: > + - in-ports > + > +else: > + required: > + - out-ports No improvements. Implement Rob's comments. Best regards, Krzysztof
