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coresight: etm3x: set progbit to stop trace collection 

There is no need to use the event enable's "always false" event to
stop trace collection.  For that purpose setting the programming bit
(ETMCR:10) is enough.

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mathieu Poirier 2016-02-17 17:51:53 -07:00 committed by Greg Kroah-Hartman
parent 22fd532eaa
commit 47cd066cd0
1 changed files with 0 additions and 3 deletions
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3
drivers/hwtracing/coresight/coresight-etm3x.c
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@ -398,9 +398,6 @@ static void etm_disable_hw(void *info)
CS_UNLOCK(drvdata->base);
etm_set_prog(drvdata);
/* Program trace enable to low by using always false event */
etm_writel(drvdata, ETM_HARD_WIRE_RES_A | ETM_EVENT_NOT_A, ETMTEEVR);
/* Read back sequencer and counters for post trace analysis */
config->seq_curr_state = (etm_readl(drvdata, ETMSQR) & ETM_SQR_MASK);