1 files changed, 10 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/sysfs-class-stm b/Documentation/ABI/testing/sysfs-class-stm
index c9aa4f3fc9a7..77ed3da0f68e 100644
--- a/Documentation/ABI/testing/sysfs-class-stm
+++ b/Documentation/ABI/testing/sysfs-class-stm
@@ -12,3 +12,13 @@ KernelVersion:	4.3
 Contact:        Alexander Shishkin <alexander.shishkin@linux.intel.com>
 Description:
                 Shows the number of channels per master on this STM device.
+
+What:           /sys/class/stm/<stm>/hw_override
+Date:           March 2016
+KernelVersion:  4.7
+Contact:        Alexander Shishkin <alexander.shishkin@linux.intel.com>
+Description:
+                Reads as 0 if master numbers in the STP stream produced by
+                this stm device will match the master numbers assigned by
+                the software or 1 if the stm hardware overrides software
+                assigned masters.