Hi
On 08/09/2022 09:44, Tao Zhang wrote:
DSB subunit need to be configured in enablement and disablement.
A struct that specifics associated to dsb dataset is needed. It
saves the configuration and parameters of the dsb datasets. This
change is to add this struct and initialize the configuration of
DSB subunit.
Signed-off-by: Tao Zhang <quic_taozha@xxxxxxxxxxx>
---
drivers/hwtracing/coresight/coresight-tpdm.c | 44 ++++++++++++++++++++++++++--
drivers/hwtracing/coresight/coresight-tpdm.h | 17 +++++++++++
2 files changed, 58 insertions(+), 3 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-tpdm.c b/drivers/hwtracing/coresight/coresight-tpdm.c
index 88df3e6..69ea453 100644
--- a/drivers/hwtracing/coresight/coresight-tpdm.c
+++ b/drivers/hwtracing/coresight/coresight-tpdm.c
@@ -24,6 +24,22 @@ static void tpdm_enable_dsb(struct tpdm_drvdata *drvdata)
{
u32 val;
+ val = readl_relaxed(drvdata->base + TPDM_DSB_TIER);
+ /* Set trigger timestamp */
+ if (drvdata->dsb->trig_ts)
What happens if this instance doesn't have a DSB set ? Have
you tested this on a system without the DSB ?
Suzuki
