From b0d0ac72a7381b4a9a40f3ac0c83a886571094cf Mon Sep 17 00:00:00 2001
From: Gregory Nutt <gnutt@nuttx.org>
Date: Sat, 2 Aug 2014 14:28:10 -0600
Subject: [PATCH] WM8904 driver: Disable the FFL at the end of playing.

---
 drivers/audio/wm8904.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/audio/wm8904.c b/drivers/audio/wm8904.c
index 3051ec1e48..d3d77bb74e 100644
--- a/drivers/audio/wm8904.c
+++ b/drivers/audio/wm8904.c
@@ -1585,7 +1585,12 @@ static void *wm8904_workerthread(pthread_addr_t pvarg)
   /* Disable the WM8904 interrupt */
 
   WM8904_DISABLE(priv->lower);
+
+  /* Mute the volume and disable the FLL output */
+
   wm8904_setvolume(priv, priv->volume, true);
+  wm8904_writereg(priv, WM8904_FLL_CTRL1, 0);
+  wm8904_writereg(priv, WM8904_DUMMY, 0x55aa);
 
   /* Return any pending buffers in our pending queue */