coresight: etmv4: Counter values not saved on disable

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The counter value registers change during operation, however this change
is not reflected in the values seen by the user in sysfs.

This fixes the issue by reading back the values on disable.

Signed-off-by: Mike Leach <mike.leach@linaro.org>
Fixes: 2e1cdfe184 ("coresight-etm4x: Adding CoreSight ETM4x driver")
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20200716175746.3338735-11-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Mike Leach 2020-07-16 11:57:39 -06:00 • committed by Greg Kroah-Hartman

parent cb8bba907a

commit 8fa43700f6

1 changed files with 6 additions and 0 deletions

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drivers/hwtracing/coresight/coresight-etm4x.c

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