ALSA: hda - More description about patch module option

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 4 insertions, 0 deletions

diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt
index 012858d2b119..414700b996ae 100644
--- a/Documentation/sound/alsa/ALSA-Configuration.txt
+++ b/Documentation/sound/alsa/ALSA-Configuration.txt
@@ -749,6 +749,10 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
     bdl_pos_adj - Specifies the DMA IRQ timing delay in samples.
                 Passing -1 will make the driver to choose the appropriate
                 value based on the controller chip.
+    patch       - Specifies the early "patch" files to modify the HD-audio
+                setup before initializing the codecs.  This option is
+                available only when CONFIG_SND_HDA_PATCH_LOADER=y is set.
+                See HD-Audio.txt for details.
     
     [Single (global) options]
     single_cmd  - Use single immediate commands to communicate with