[alsa-devel] S/PDIF-Out on Asus M3A-H/HDMI with ALC1200]

[Wu Fengguang]

On Fri, Dec 26, 2008 at 01:29:30PM +0100, Thomas Schneider wrote:
> Hi,
> 
> sorry, i get a kernel oops with this changes when i activate iec958 in 
> the mixer !
> 
> 
> [ 1435.041914] BUG: unable to handle kernel NULL pointer dereference at 
> 0000000000000006
> [ 1435.041914] IP: [<ffffffff880d0223>] :snd_hda_codec:set_dig_out+0x47/0x57
> [ 1435.041914] PGD 6b5c3067 PUD 781ba067 PMD 0
> [ 1435.041914] Oops: 0000 [1] SMP

Sorry, does this new patch fixed the oops?

Thanks,
Fengguang
---
 sound/pci/hda/hda_local.h     |    1 +
 sound/pci/hda/patch_realtek.c |    9 ++++++++-
 2 files changed, 9 insertions(+), 1 deletion(-)

--- sound-2.6.orig/sound/pci/hda/hda_local.h
+++ sound-2.6/sound/pci/hda/hda_local.h
@@ -227,6 +227,7 @@ struct hda_multi_out {
 	hda_nid_t hp_nid;	/* optional DAC for HP, 0 when not exists */
 	hda_nid_t extra_out_nid[3];	/* optional DACs, 0 when not exists */
 	hda_nid_t dig_out_nid;	/* digital out audio widget */
+	hda_nid_t *slave_dig_outs;
 	int max_channels;	/* currently supported analog channels */
 	int dig_out_used;	/* current usage of digital out (HDA_DIG_XXX) */
 	int no_share_stream;	/* don't share a stream with multiple pins */
--- sound-2.6.orig/sound/pci/hda/patch_realtek.c
+++ sound-2.6/sound/pci/hda/patch_realtek.c
@@ -336,6 +336,7 @@ struct alc_config_preset {
 	hda_nid_t *dac_nids;
 	hda_nid_t dig_out_nid;		/* optional */
 	hda_nid_t hp_nid;		/* optional */
+	hda_nid_t *slave_dig_outs;
 	unsigned int num_adc_nids;
 	hda_nid_t *adc_nids;
 	hda_nid_t *capsrc_nids;
@@ -810,6 +811,7 @@ static void setup_preset(struct alc_spec
 	spec->multiout.num_dacs = preset->num_dacs;
 	spec->multiout.dac_nids = preset->dac_nids;
 	spec->multiout.dig_out_nid = preset->dig_out_nid;
+	spec->multiout.slave_dig_outs = preset->slave_dig_outs;
 	spec->multiout.hp_nid = preset->hp_nid;
 
 	spec->num_mux_defs = preset->num_mux_defs;
@@ -3085,6 +3087,7 @@ static int alc_build_pcms(struct hda_cod
 	/* SPDIF for stream index #1 */
 	if (spec->multiout.dig_out_nid || spec->dig_in_nid) {
 		codec->num_pcms = 2;
+	        codec->slave_dig_outs = spec->multiout.slave_dig_outs;
 		info = spec->pcm_rec + 1;
 		info->name = spec->stream_name_digital;
 		info->pcm_type = HDA_PCM_TYPE_SPDIF;
@@ -8525,6 +8528,10 @@ static struct snd_pci_quirk alc883_cfg_t
 	{}
 };
 
+static hda_nid_t alc1200_slave_dig_outs[] = {
+	ALC883_DIGOUT_NID, 0,
+};
+
 static struct alc_config_preset alc883_presets[] = {
 	[ALC883_3ST_2ch_DIG] = {
 		.mixers = { alc883_3ST_2ch_mixer },
@@ -8865,13 +8872,13 @@ static struct alc_config_preset alc883_p
 		.dac_nids = alc883_dac_nids,
 		.dig_out_nid = ALC1200_DIGOUT_NID,
 		.dig_in_nid = ALC883_DIGIN_NID,
+		.slave_dig_outs = alc1200_slave_dig_outs,
 		.num_channel_mode = ARRAY_SIZE(alc883_sixstack_modes),
 		.channel_mode = alc883_sixstack_modes,
 		.input_mux = &alc883_capture_source,
 	},
 };
 
-
 /*
  * BIOS auto configuration
  */