diff options
| author | Mathieu Poirier <mathieu.poirier@linaro.org> | 2019-04-03 03:44:05 -0600 |
|---|---|---|
| committer | Mathieu Poirier <mathieu.poirier@linaro.org> | 2019-04-03 03:44:05 -0600 |
| commit | d49021d36515f2e6f12caa4ddb6c3d8a8bc22381 (patch) | |
| tree | 11cd79d884db9158a44d0223b0712694d64ac03e | |
| parent | e661602413d6b372f417b89d73c225848176ddab (diff) | |
coresight: etm4x: Skip selector pair 0
Resource selector pair 0 is always implemented and reserved. As such
it should not be explicitly programmed.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-etm4x.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/hwtracing/coresight/coresight-etm4x.c b/drivers/hwtracing/coresight/coresight-etm4x.c index 732ae12fca9b..d64192c29860 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x.c +++ b/drivers/hwtracing/coresight/coresight-etm4x.c @@ -138,8 +138,11 @@ static int etm4_enable_hw(struct etmv4_drvdata *drvdata) drvdata->base + TRCCNTVRn(i)); } - /* Resource selector pair 0 is always implemented and reserved */ - for (i = 0; i < drvdata->nr_resource * 2; i++) + /* + * Resource selector pair 0 is always implemented and reserved. As + * such start at 2. + */ + for (i = 2; i < drvdata->nr_resource * 2; i++) writel_relaxed(config->res_ctrl[i], drvdata->base + TRCRSCTLRn(i)); |