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coresight-tpdm: Remove the unnecessary lock

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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
This commit is contained in:
Tao Zhang 2023-09-28 14:29:34 +08:00 committed by Suzuki K Poulose
parent 2373699a35
commit f4443ee5a3
1 changed files with 0 additions and 2 deletions
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2
drivers/hwtracing/coresight/coresight-tpdm.c
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@ -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);
}
/*