coresight: cti: Add sysfs trigger / channel programming API

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Adds a user API to allow programming of CTI by trigger ID and
channel number. This will take the channel and trigger ID supplied
by the user and program the appropriate register values.

Signed-off-by: Mike Leach <mike.leach@linaro.org>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20200320165303.13681-5-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Mike Leach 2020-03-20 10:52:55 -06:00 • committed by Greg Kroah-Hartman

parent b5213376c2

commit 1bf82857b4

3 changed files with 551 additions and 0 deletions

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372

drivers/hwtracing/coresight/coresight-cti-sysfs.c

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147

drivers/hwtracing/coresight/coresight-cti.c

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32

drivers/hwtracing/coresight/coresight-cti.h

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