coresight: etm4x: Skip setting LPOVERRIDE bit for qcom, skip-power-up

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There is a bug on the systems supporting to skip power up
(qcom,skip-power-up) where setting LPOVERRIDE bit(low-power
state override behaviour) will result in CPU hangs/lockups
even on the implementations which supports it. So skip
setting the LPOVERRIDE bit for such platforms.

Fixes: 02510a5aa7 ("coresight: etm4x: Add support to skip trace unit power up")
Cc: stable@vger.kernel.org
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20201127175256.1092685-2-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Sai Prakash Ranjan 2020-11-27 10:52:42 -07:00 • committed by Greg Kroah-Hartman

parent 3311bf1846

commit ac0f82b1b4

1 changed files with 1 additions and 1 deletions

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

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