diff options
| author | Tao Zhang <quic_taozha@quicinc.com> | 2023-09-28 08:29:34 +0200 |
|---|---|---|
| committer | Suzuki K Poulose <suzuki.poulose@arm.com> | 2023-11-16 12:35:15 +0100 |
| commit | f4443ee5a38cb84bdd0515f8832117b2be0684d6 (patch) | |
| tree | bd163794c301d3d9d63d559b2d6f5e8abb9b0d81 /drivers/hwtracing | |
| parent | coresight: tmc: Make etr buffer mode user configurable from sysfs (diff) | |
| download | linux-f4443ee5a38cb84bdd0515f8832117b2be0684d6.tar.xz linux-f4443ee5a38cb84bdd0515f8832117b2be0684d6.zip | |
coresight-tpdm: Remove the unnecessary lock
Remove the unnecessary lock "CS_{UN,}LOCK" in TPDM driver. This
lock is only needed while writing the data to Coresight registers.
Signed-off-by: Tao Zhang <quic_taozha@quicinc.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/1695882586-10306-2-git-send-email-quic_taozha@quicinc.com
Diffstat (limited to 'drivers/hwtracing')
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-tpdm.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/hwtracing/coresight/coresight-tpdm.c b/drivers/hwtracing/coresight/coresight-tpdm.c index f4854af0431e..b6456120b76a 100644 --- a/drivers/hwtracing/coresight/coresight-tpdm.c +++ b/drivers/hwtracing/coresight/coresight-tpdm.c @@ -114,11 +114,9 @@ static void tpdm_init_default_data(struct tpdm_drvdata *drvdata) { u32 pidr; - CS_UNLOCK(drvdata->base); /* Get the datasets present on the TPDM. */ pidr = readl_relaxed(drvdata->base + CORESIGHT_PERIPHIDR0); drvdata->datasets |= pidr & GENMASK(TPDM_DATASETS - 1, 0); - CS_LOCK(drvdata->base); } /* |