hda: use amp capabilities from afg if amp override not set

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
@@ -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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At Sun, 20 Mar 2005 17:36:05 -0700,

Thanks, applied to CVS now.

At the next time, could you provide "signed-off-by" line, too, to include your credit properly in changelog?

Takashi

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Will do. Sorry, I forgot that this time.

Thanks,
Matt

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