Merge branch 'topic/pcm-locking' into for-next

here is a small series of patches for cleaning up / enhancing the
PCM core stuff.

1 files changed, 4 insertions, 13 deletions

diff --git a/Documentation/sound/alsa/Procfile.txt b/Documentation/sound/alsa/Procfile.txt
index 7fcd1ad96fcc..7f8a0d325905 100644
--- a/Documentation/sound/alsa/Procfile.txt
+++ b/Documentation/sound/alsa/Procfile.txt
@@ -101,10 +101,6 @@ card*/pcm*/xrun_debug
           bit 0 = Enable XRUN/jiffies debug messages
           bit 1 = Show stack trace at XRUN / jiffies check
           bit 2 = Enable additional jiffies check
-          bit 3 = Log hwptr update at each period interrupt
-          bit 4 = Log hwptr update at each snd_pcm_update_hw_ptr()
-          bit 5 = Show last 10 positions on error
-          bit 6 = Do above only once
 
         When the bit 0 is set, the driver will show the messages to
         kernel log when an xrun is detected.  The debug message is
@@ -121,15 +117,6 @@ card*/pcm*/xrun_debug
         buggy) hardware that doesn't give smooth pointer updates.
         This feature is enabled via the bit 2.
 
-        Bits 3 and 4 are for logging the hwptr records.  Note that
-        these will give flood of kernel messages.
-
-        When bit 5 is set, the driver logs the last 10 xrun errors and
-        the proc file shows each jiffies, position, period_size,
-        buffer_size, old_hw_ptr, and hw_ptr_base values.
-
-        When bit 6 is set, the full xrun log is shown only once.
-
 card*/pcm*/sub*/info
         The general information of this PCM sub-stream.
 
@@ -146,6 +133,10 @@ card*/pcm*/sub*/sw_params
 card*/pcm*/sub*/prealloc
         The buffer pre-allocation information.
 
+card*/pcm*/sub*/xrun_injection
+        Triggers an XRUN to the running stream when any value is
+        written to this proc file.  Used for fault injection.
+        This entry is write-only.
 
 AC97 Codec Information
 ----------------------