Commit 4ed57f75 authored by Tao Zhang's avatar Tao Zhang Committed by Suzuki K Poulose
Browse files

dt-bindings: arm: qcom,coresight-tpdm: Add support for CMB element size 



Add property "qcom,cmb-elem-bits" to support CMB(Continuous
Multi-Bit) element for TPDM. The associated aggregator will read
this size before it is enabled. CMB element size currently only
supports 8-bit, 32-bit and 64-bit. Because the existing example
tpdm "tpdm@684c000" which only supports dsb sub-unit, I introduce
a new example "tpdm@6c29000" to describe the usage of this new
property.

Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: default avatarTao Zhang <quic_taozha@quicinc.com>
Signed-off-by: default avatarMao Jinlong <quic_jinlmao@quicinc.com>
Signed-off-by: default avatarSuzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/1707024641-22460-4-git-send-email-quic_taozha@quicinc.com
parent f021801c

Documentation/devicetree/bindings/arm/qcom,coresight-tpdm.yaml

+25 −0
Original line number Diff line number Diff line
@@ -52,6 +52,14 @@ properties: 
    $ref: /schemas/types.yaml#/definitions/uint8

    enum: [32, 64]



  qcom,cmb-element-bits:

    description:

      Specifies the CMB(Continuous Multi-Bit) element size supported by

      the monitor. The associated aggregator will read this size before it

      is enabled. CMB element size currently only supports 8-bit, 32-bit

      and 64-bit.

    enum: [8, 32, 64]



  qcom,dsb-msrs-num:

    description:

      Specifies the number of DSB(Discrete Single Bit) MSR(mux select register)
@@ -110,4 +118,21 @@ examples: 
      };

    };



    tpdm@6c29000 {

      compatible = "qcom,coresight-tpdm", "arm,primecell";

      reg = <0x06c29000 0x1000>;



      qcom,cmb-element-bits = <64>;



      clocks = <&aoss_qmp>;

      clock-names = "apb_pclk";



      out-ports {

        port {

          tpdm_ipcc_out_funnel_center: endpoint {

            remote-endpoint = <&funnel_center_in_tpdm_ipcc>;

          };

        };

      };

    };

...