[PATCH] hda: use amp capabilities from afg if amp override not set

[Matt <matt@embeddedalley.com>]

Some HDA codec nodes contain an amp, but do not provide local amp
capabilities.  In these cases, AC_WCAP_AMP_OVRD is not set so we
should query the AFG nid in order to get the general amp capabilities.

Index: alsa-kernel/pci/hda/hda_codec.c
===================================================================
RCS file: /cvsroot/alsa/alsa-kernel/pci/hda/hda_codec.c,v
retrieving revision 1.8
diff -u -r1.8 hda_codec.c
--- alsa-kernel/pci/hda/hda_codec.c	18 Mar 2005 16:21:56 -0000	1.8
+++ alsa-kernel/pci/hda/hda_codec.c	21 Mar 2005 00:20:40 -0000
@@ -611,6 +611,8 @@
 	if (! info)
 		return 0;
 	if (! (info->status & INFO_AMP_CAPS)) {
+		if (!(snd_hda_param_read(codec, nid, AC_PAR_AUDIO_WIDGET_CAP) & AC_WCAP_AMP_OVRD))
+			nid = codec->afg;
 		info->amp_caps = snd_hda_param_read(codec, nid, direction == HDA_OUTPUT ?
 						    AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP);
 		info->status |= INFO_AMP_CAPS;


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