[PATCH v1 0/3] add sysfs nodes to configure TPDA's registers
Jie Gan
jie.gan at oss.qualcomm.com
Tue Aug 26 00:01:47 PDT 2025
Patchset 1 introduces configuration of the cross-trigger registers with
appropriate values to enable proper generation of cross-trigger packets.
Patchset 2 introduces a function to configure the TPDA_SYNCR register,
which determines the frequency of ASYNC packet generation. These packets
assist userspace tools in accurately identifying each valid packet.
Patchset 3 introduces a sysfs node to initiate a flush request for the
specific port, forcing the data to synchronize and be transmitted to the
sink device.
Tao Zhang (3):
coresight: tpda: Add sysfs node for tpda cross-trigger configuration
coresight: tpda: add function to configure TPDA_SYNCR register
coresight: tpda: add sysfs node to flush specific port
.../testing/sysfs-bus-coresight-devices-tpda | 50 +++
drivers/hwtracing/coresight/coresight-tpda.c | 301 ++++++++++++++++++
drivers/hwtracing/coresight/coresight-tpda.h | 29 ++
3 files changed, 380 insertions(+)
create mode 100644 Documentation/ABI/testing/sysfs-bus-coresight-devices-tpda
--
2.34.1
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