diff mbox

[V7,10/24] coresight: etm3x: set progbit to stop trace collection

Message ID 1450472361-426-11-git-send-email-mathieu.poirier@linaro.org
State Accepted
Commit 47cd066cd00a65902ee3bd57da5bd395cb83aff9
Headers show

Commit Message

Mathieu Poirier Dec. 18, 2015, 8:59 p.m. UTC 
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>

---
 drivers/hwtracing/coresight/coresight-etm3x.c | 3 ---
 1 file changed, 3 deletions(-)

-- 
2.1.4

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diff mbox

Patch

diff --git a/drivers/hwtracing/coresight/coresight-etm3x.c b/drivers/hwtracing/coresight/coresight-etm3x.c
index ff9b83d02cb7..221629ff8916 100644
--- a/drivers/hwtracing/coresight/coresight-etm3x.c
+++ b/drivers/hwtracing/coresight/coresight-etm3x.c
@@ -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);