Commit f7f965c9 authored by Tao Zhang's avatar Tao Zhang Committed by Suzuki K Poulose
Browse files

coresight-tpdm: Introduce TPDM subtype to TPDM driver 



Introduce the new subtype of "CORESIGHT_DEV_SUBTYPE_SOURCE_TPDM"
for TPDM components in driver.

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/1695882586-10306-4-git-send-email-quic_taozha@quicinc.com
parent 2a8d9b37

drivers/hwtracing/coresight/coresight-core.c

+3 −0
Original line number Diff line number Diff line
@@ -1093,6 +1093,7 @@ static int coresight_validate_source(struct coresight_device *csdev, 


	if (subtype != CORESIGHT_DEV_SUBTYPE_SOURCE_PROC &&

	    subtype != CORESIGHT_DEV_SUBTYPE_SOURCE_SOFTWARE &&

	    subtype != CORESIGHT_DEV_SUBTYPE_SOURCE_TPDM &&

	    subtype != CORESIGHT_DEV_SUBTYPE_SOURCE_OTHERS) {

		dev_err(&csdev->dev, "wrong device subtype in %s\n", function);

		return -EINVAL;
@@ -1162,6 +1163,7 @@ int coresight_enable(struct coresight_device *csdev) 
		per_cpu(tracer_path, cpu) = path;

		break;

	case CORESIGHT_DEV_SUBTYPE_SOURCE_SOFTWARE:

	case CORESIGHT_DEV_SUBTYPE_SOURCE_TPDM:

	case CORESIGHT_DEV_SUBTYPE_SOURCE_OTHERS:

		/*

		 * Use the hash of source's device name as ID
@@ -1212,6 +1214,7 @@ void coresight_disable(struct coresight_device *csdev) 
		per_cpu(tracer_path, cpu) = NULL;

		break;

	case CORESIGHT_DEV_SUBTYPE_SOURCE_SOFTWARE:

	case CORESIGHT_DEV_SUBTYPE_SOURCE_TPDM:

	case CORESIGHT_DEV_SUBTYPE_SOURCE_OTHERS:

		hash = hashlen_hash(hashlen_string(NULL, dev_name(&csdev->dev)));

		/* Find the path by the hash. */

drivers/hwtracing/coresight/coresight-tpdm.c

+1 −1
Original line number Diff line number Diff line
@@ -203,7 +203,7 @@ static int tpdm_probe(struct amba_device *adev, const struct amba_id *id) 
	if (!desc.name)

		return -ENOMEM;

	desc.type = CORESIGHT_DEV_TYPE_SOURCE;

	desc.subtype.source_subtype = CORESIGHT_DEV_SUBTYPE_SOURCE_OTHERS;

	desc.subtype.source_subtype = CORESIGHT_DEV_SUBTYPE_SOURCE_TPDM;

	desc.ops = &tpdm_cs_ops;

	desc.pdata = adev->dev.platform_data;

	desc.dev = &adev->dev;

include/linux/coresight.h

+1 −0
Original line number Diff line number Diff line
@@ -64,6 +64,7 @@ enum coresight_dev_subtype_source { 
	CORESIGHT_DEV_SUBTYPE_SOURCE_PROC,

	CORESIGHT_DEV_SUBTYPE_SOURCE_BUS,

	CORESIGHT_DEV_SUBTYPE_SOURCE_SOFTWARE,

	CORESIGHT_DEV_SUBTYPE_SOURCE_TPDM,

	CORESIGHT_DEV_SUBTYPE_SOURCE_OTHERS,

};