[ALSA] hda-codec - Allow model=generic always for generic parser

Accept model=generic option to specify the generic parser regardless
of codec chips.  This is helpful for testing and debugging.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

2 files changed, 6 insertions, 1 deletions

diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt
index 24ea129969ae..4d92a3e69525 100644
--- a/Documentation/sound/alsa/ALSA-Configuration.txt
+++ b/Documentation/sound/alsa/ALSA-Configuration.txt
@@ -924,6 +924,10 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
           vaio          Setup for VAIO FE550G/SZ110
           vaio-ar Setup for VAIO AR
 
+    The model name "genric" is treated as a special case.  When this
+    model is given, the driver uses the generic codec parser without
+    "codec-patch".  It's sometimes good for testing and debugging.
+
     If the default configuration doesn't work and one of the above
     matches with your device, report it together with the PCI
     subsystem ID (output of "lspci -nv") to ALSA BTS or alsa-devel
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 8f34fb447983..4c0a6a5b20d9 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -573,7 +573,8 @@ int snd_hda_codec_new(struct hda_bus *bus, unsigned int codec_addr,
                                                          0);
         }
 
-        codec->preset = find_codec_preset(codec);
+        if (strcmp(codec->bus->modelname, "generic"))
+                codec->preset = find_codec_preset(codec);
         if (! *bus->card->mixername)
                 snd_hda_get_codec_name(codec, bus->card->mixername,
                                        sizeof(bus->card->mixername));