Commit f4443ee5 authored by Tao Zhang's avatar Tao Zhang Committed by Suzuki K Poulose
Browse files

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: default avatarTao Zhang <quic_taozha@quicinc.com>
Signed-off-by: default avatarSuzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/1695882586-10306-2-git-send-email-quic_taozha@quicinc.com
parent 2373699a

drivers/hwtracing/coresight/coresight-tpdm.c

+0 −2
Original line number Diff line number Diff line
@@ -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);

}



/*