On 19/12/2025 06:59, Songwei Chai wrote:

Add reset node to initialize the value of priority/condition_decode/condition_select/timer/counter nodes.

Signed-off-by: Songwei Chai songwei.chai@oss.qualcomm.com

.../ABI/testing/sysfs-bus-amba-devices-tgu | 7 ++ drivers/hwtracing/qcom/tgu.c | 74 +++++++++++++++++++ 2 files changed, 81 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-bus-amba-devices-tgu b/Documentation/ABI/testing/sysfs-bus-amba-devices-tgu index 010eade0a1c5..0733b3e07b45 100644 --- a/Documentation/ABI/testing/sysfs-bus-amba-devices-tgu +++ b/Documentation/ABI/testing/sysfs-bus-amba-devices-tgu @@ -42,3 +42,10 @@ KernelVersion 6.19 Contact: Jinlong Mao jinlong.mao@oss.qualcomm.com, Songwei Chai songwei.chai@oss.qualcomm.com Description: (RW) Set/Get the counter value with specific step for TGU.

+What: /sys/bus/amba/devices/<tgu-name>/reset_tgu +Date: December 2025 +KernelVersion 6.19 +Contact: Jinlong Mao jinlong.mao@oss.qualcomm.com, Songwei Chai songwei.chai@oss.qualcomm.com +Description:

• (Write) Write 1 to reset the dataset for TGU.
  

diff --git a/drivers/hwtracing/qcom/tgu.c b/drivers/hwtracing/qcom/tgu.c index d4210869556e..5a8c6af9b719 100644 --- a/drivers/hwtracing/qcom/tgu.c +++ b/drivers/hwtracing/qcom/tgu.c @@ -425,8 +425,82 @@ static ssize_t enable_tgu_store(struct device *dev,

• dev_dbg(dev, "Coresight-TGU reset complete\n");

Qualcomm-TGU ?

Suzuki