[PATCH v1 RESEND 0/3] Add support to configure TPDM MCMB subunit

Jinlong Mao quic_jinlmao at quicinc.com
Wed Oct 23 00:52:33 PDT 2024



On 2024/10/11 14:47, Mao Jinlong wrote:
> Introduction of TPDM MCMB(Multi-lane Continuous Multi Bit) subunit
> MCMB (Multi-lane CMB) is a special form of CMB dataset type. MCMB
> subunit has the same number and usage of registers as CMB subunit.
> Just like the CMB subunit, the MCMB subunit must be configured prior
> to enablement. This series adds support for TPDM to configure the
> MCMB subunit.
> 
> Once this series patches are applied properly, the new tpdm nodes for
> should be observed at the tpdm path /sys/bus/coresight/devices/tpdm*
> which supports MCMB subunit. All sysfs files of CMB subunit TPDM are
> included in MCMB subunit TPDM. On this basis, MCMB subunit TPDM will
> have new sysfs files to select and enable the lane.
> 
> Mao Jinlong (1):
>    coresight-tpdm: Add MCMB dataset support
> 
> Tao Zhang (2):
>    coresight-tpdm: Add support to select lane
>    coresight-tpdm: Add support to enable the lane for MCMB TPDM
> 
>   .../testing/sysfs-bus-coresight-devices-tpdm  |  15 +++
>   drivers/hwtracing/coresight/coresight-tpda.c  |   5 +-
>   drivers/hwtracing/coresight/coresight-tpdm.c  | 121 +++++++++++++++++-
>   drivers/hwtracing/coresight/coresight-tpdm.h  |  32 ++++-
>   4 files changed, 164 insertions(+), 9 deletions(-)

Just a friendly reminder to review this series. This is the final piece 
of the main function for TPDM, which was initially sent in June.

> 




More information about the linux-arm-kernel mailing list