coresight: tmc: Don't enable TMC when it's not ready.

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If TMC ETR is enabled without being ready, in later use we may
see AXI bus errors caused by accessing invalid addresses.

Signed-off-by: Yabin Cui <yabinc@google.com>
[ Tweak error message ]
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20230127231001.1920947-1-yabinc@google.com

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Yabin Cui 2023-01-27 23:10:01 +00:00 • committed by Suzuki K Poulose

parent c88a15d9dd

commit 669c461423

4 changed files with 56 additions and 14 deletions

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4

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

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45

drivers/hwtracing/coresight/coresight-tmc-etf.c

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19

drivers/hwtracing/coresight/coresight-tmc-etr.c

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2

drivers/hwtracing/coresight/coresight-tmc.h

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