[PATCH v3 3/5] dt-bindings: arm: Add Coresight TMC Control Unit hardware
JieGan
quic_jiegan at quicinc.com
Mon Aug 19 02:06:41 PDT 2024
On Mon, Aug 19, 2024 at 08:26:19AM +0200, Krzysztof Kozlowski wrote:
> On 12/08/2024 04:41, Jie Gan wrote:
> > +
> > +maintainers:
> > + - Yuanfang Zhang <quic_yuanfang at quicinc.com>
> > + - Mao Jinlong <quic_jinlmao at quicinc.com>
> > + - Jie Gan <quic_jiegan at quicinc.com>
> > +
> > +description:
> > + The Coresight TMC Control unit controls various Coresight behaviors.
> > + It works as a helper device when connected to TMC ETR device.
> > + It is responsible for controlling the data filter function based on
> > + the source device's Trace ID for TMC ETR device. The trace data with
> > + that Trace id can get into ETR's buffer while other trace data gets
> > + ignored.
> > +
> > +properties:
> > + compatible:
> > + enum:
> > + - qcom,sa8775p-ctcu
> > +
> > + reg:
> > + maxItems: 1
> > +
> > + clocks:
> > + maxItems: 1
> > +
> > + clock-names:
> > + items:
> > + - const: apb
> > +
> > + in-ports:
> > + $ref: /schemas/graph.yaml#/properties/ports
> > +
> > + patternProperties:
> > + '^port(@[0-7])?$':
>
> I see only two ports in the example. How many are there in reality?
Existing projects can have a maximum of two ports. I used the range 0-7 as I consider
it unlikely to have more than 8 ports. Maybe it's intended as a large buffer for
futher design needs.
>
> Best regards,
> Krzysztof
>
Thanks,
Jie
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