coresight: tpda: add logic to configure TPDA_SYNCR register

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The TPDA_SYNC counter tracks the number of bytes transferred from the
aggregator. When this count reaches the value programmed in the
TPDA_SYNCR register, an ASYNC request is triggered, allowing userspace
tools to accurately parse each valid packet.

Signed-off-by: Tao Zhang <tao.zhang@oss.qualcomm.com>
Reviewed-by: James Clark <james.clark@linaro.org>
Co-developed-by: Jie Gan <jie.gan@oss.qualcomm.com>
Signed-off-by: Jie Gan <jie.gan@oss.qualcomm.com>
[ Fix kernel version in Documentation ]
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20251223-add_sysfs_nodes_to_configure_tpda-v8-3-4c95db608b62@oss.qualcomm.com

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Tao Zhang 2025-12-23 18:09:52 +08:00 • committed by Suzuki K Poulose

parent 8e1c358a3b

commit 33f04ead7c

3 changed files with 118 additions and 0 deletions

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18

Documentation/ABI/testing/sysfs-bus-coresight-devices-tpda

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90

drivers/hwtracing/coresight/coresight-tpda.c

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10

drivers/hwtracing/coresight/coresight-tpda.h

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