Re: [PATCH v2] coresight-stm: adding driver for CoreSight STM component

On 25 February 2015 at 22:53, Shawn Guo [off-list ref] wrote:

On Wed, Feb 25, 2015 at 04:32:32PM -0700, Mathieu Poirier wrote:

quoted

diff --git a/Documentation/ABI/testing/sysfs-bus-coresight-devices-stm b/Documentation/ABI/testing/sysfs-bus-coresight-devices-stm
new file mode 100644
index 000000000000..3ddb676831ab
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-coresight-devices-stm

@@ -0,0 +1,62 @@
+What:                /sys/bus/coresight/devices/<memory_map>.stm/enable_source
+Date:                February 2015
+KernelVersion:       3.20

A random comment - there will never be a v3.20 kernel.

That's pretty funny!  That part was obviously minted before there was
even an hint of moving to 4.0.  Thanks for pointing it out.

Shawn

quoted

+Contact:     Mathieu Poirier <mathieu.poirier@linaro.org>
+Description: (RW) Enable/disable tracing on this specific trace macrocell.
+             Enabling the trace macrocell implies it has been configured
+             properly and a sink has been identidifed for it.  The path
+             of coresight components linking the source to the sink is
+             configured and managed automatically by the coresight framework.