diff --git a/Documentation/sound/hd-audio/notes.rst b/Documentation/sound/hd-audio/notes.rst
index a9e35b1f87bd..ef6a4513cce7 100644
--- a/Documentation/sound/hd-audio/notes.rst
+++ b/Documentation/sound/hd-audio/notes.rst
@@ -15,7 +15,7 @@ problem is broken BIOS, and the rest is the driver implementation.
 This document explains the brief trouble-shooting and debugging
 methods for the	HD-audio hardware.
 
-The HD-audio component consists of two parts: the controller chip and 
+The HD-audio component consists of two parts: the controller chip and
 the codec chips on the HD-audio bus.  Linux provides a single driver
 for all controllers, snd-hda-intel.  Although the driver name contains
 a word of a well-known hardware vendor, it's not specific to it but for
@@ -81,7 +81,7 @@ the wake-up timing.  It wakes up a few samples before actually
 processing the data on the buffer.  This caused a lot of problems, for
 example, with ALSA dmix or JACK.  Since 2.6.27 kernel, the driver puts
 an artificial delay to the wake up timing.  This delay is controlled
-via ``bdl_pos_adj`` option. 
+via ``bdl_pos_adj`` option.
 
 When ``bdl_pos_adj`` is a negative value (as default), it's assigned to
 an appropriate value depending on the controller chip.  For Intel
@@ -144,7 +144,7 @@ see a regression wrt the sound quality (stuttering, etc) or a lock-up
 in the recent kernel, try to pass ``enable_msi=0`` option to disable
 MSI.  If it works, you can add the known bad device to the blacklist
 defined in hda_intel.c.  In such a case, please report and give the
-patch back to the upstream developer. 
+patch back to the upstream developer.
 
 
 HD-Audio Codec
@@ -375,7 +375,7 @@ HD-Audio Reconfiguration
 ------------------------
 This is an experimental feature to allow you re-configure the HD-audio
 codec dynamically without reloading the driver.  The following sysfs
-files are available under each codec-hwdep device directory (e.g. 
+files are available under each codec-hwdep device directory (e.g.
 /sys/class/sound/hwC0D0):
 
 vendor_id
@@ -433,7 +433,7 @@ re-configure based on that state, run like below:
 ::
 
     # echo 0x14 0x9993013f > /sys/class/sound/hwC0D0/user_pin_configs
-    # echo 1 > /sys/class/sound/hwC0D0/reconfig  
+    # echo 1 > /sys/class/sound/hwC0D0/reconfig
 
 
 Hint Strings
@@ -494,7 +494,7 @@ indep_hp (bool)
     mixer control, if available
 add_stereo_mix_input (bool)
     add the stereo mix (analog-loopback mix) to the input mux if
-    available 
+    available
 add_jack_modes (bool)
     add "xxx Jack Mode" enum controls to each I/O jack for allowing to
     change the headphone amp and mic bias VREF capabilities
@@ -504,7 +504,7 @@ power_save_node (bool)
     stream states
 power_down_unused (bool)
     power down the unused widgets, a subset of power_save_node, and
-    will be dropped in future 
+    will be dropped in future
 add_hp_mic (bool)
     add the headphone to capture source if possible
 hp_mic_detect (bool)
@@ -603,7 +603,7 @@ present.
 
 The patch module option is specific to each card instance, and you
 need to give one file name for each instance, separated by commas.
-For example, if you have two cards, one for an on-board analog and one 
+For example, if you have two cards, one for an on-board analog and one
 for an HDMI video board, you may pass patch option like below:
 ::