coresight: etm4x: Fix accesses to TRCVMIDCTLR1

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commit 93dd64404c upstream.

TRCVMIDCTRL1 is only implemented only if the TRCIDR4.NUMVMIDC > 4.
We must not touch the register otherwise.

Cc: stable@vger.kernel.org
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20201127175256.1092685-4-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Suzuki K Poulose 2020-11-27 10:52:44 -07:00 • committed by Greg Kroah-Hartman

parent 99203d7282

commit 004f79bec7

1 changed files with 6 additions and 3 deletions

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drivers/hwtracing/coresight/coresight-etm4x-core.c

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