diff options
| -rw-r--r-- | Documentation/sound/alsa/ALSA-Configuration.txt | 2 | ||||
| -rw-r--r-- | sound/pci/hda/hda_codec.c | 12 | ||||
| -rw-r--r-- | sound/pci/hda/hda_codec.h | 2 | ||||
| -rw-r--r-- | sound/pci/hda/hda_intel.c | 11 |
4 files changed, 18 insertions, 9 deletions
diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt index a4f3a22caba3..ee45454c50be 100644 --- a/Documentation/sound/alsa/ALSA-Configuration.txt +++ b/Documentation/sound/alsa/ALSA-Configuration.txt @@ -757,6 +757,8 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed. model - force the model name position_fix - Fix DMA pointer (0 = auto, 1 = use LPIB, 2 = POSBUF) probe_mask - Bitmask to probe codecs (default = -1, meaning all slots) + probe_only - Only probing and no codec initialization (default=off); + Useful to check the initial codec status for debugging 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. diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 625fe5984dd6..e16cf63821ae 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -709,7 +709,7 @@ static void snd_hda_codec_free(struct hda_codec *codec) * Returns 0 if successful, or a negative error code. */ int /*__devinit*/ snd_hda_codec_new(struct hda_bus *bus, unsigned int codec_addr, - struct hda_codec **codecp) + int do_init, struct hda_codec **codecp) { struct hda_codec *codec; char component[31]; @@ -793,10 +793,12 @@ int /*__devinit*/ snd_hda_codec_new(struct hda_bus *bus, unsigned int codec_addr if (bus->modelname) codec->modelname = kstrdup(bus->modelname, GFP_KERNEL); - err = snd_hda_codec_configure(codec); - if (err < 0) { - snd_hda_codec_free(codec); - return err; + if (do_init) { + err = snd_hda_codec_configure(codec); + if (err < 0) { + snd_hda_codec_free(codec); + return err; + } } snd_hda_codec_proc_new(codec); diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h index 5587d416229f..729fc7642d7f 100644 --- a/sound/pci/hda/hda_codec.h +++ b/sound/pci/hda/hda_codec.h @@ -811,7 +811,7 @@ enum { int snd_hda_bus_new(struct snd_card *card, const struct hda_bus_template *temp, struct hda_bus **busp); int snd_hda_codec_new(struct hda_bus *bus, unsigned int codec_addr, - struct hda_codec **codecp); + int do_init, struct hda_codec **codecp); /* * low level functions diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index a26ae8c4cf70..6613b6bef9eb 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -58,6 +58,7 @@ static char *model[SNDRV_CARDS]; static int position_fix[SNDRV_CARDS]; static int bdl_pos_adj[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1}; static int probe_mask[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1}; +static int probe_only[SNDRV_CARDS]; static int single_cmd; static int enable_msi; @@ -76,6 +77,8 @@ module_param_array(bdl_pos_adj, int, NULL, 0644); MODULE_PARM_DESC(bdl_pos_adj, "BDL position adjustment offset."); module_param_array(probe_mask, int, NULL, 0444); MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1)."); +module_param_array(probe_only, bool, NULL, 0444); +MODULE_PARM_DESC(probe_only, "Only probing and no codec initialization."); module_param(single_cmd, bool, 0444); MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs " "(for debugging only)."); @@ -1224,7 +1227,8 @@ static unsigned int azx_max_codecs[AZX_NUM_DRIVERS] __devinitdata = { }; static int __devinit azx_codec_create(struct azx *chip, const char *model, - unsigned int codec_probe_mask) + unsigned int codec_probe_mask, + int no_init) { struct hda_bus_template bus_temp; int c, codecs, err; @@ -1282,7 +1286,7 @@ static int __devinit azx_codec_create(struct azx *chip, const char *model, for (c = 0; c < max_slots; c++) { if ((chip->codec_mask & (1 << c)) & codec_probe_mask) { struct hda_codec *codec; - err = snd_hda_codec_new(chip->bus, c, &codec); + err = snd_hda_codec_new(chip->bus, c, !no_init, &codec); if (err < 0) continue; codecs++; @@ -2340,7 +2344,8 @@ static int __devinit azx_probe(struct pci_dev *pci, card->private_data = chip; /* create codec instances */ - err = azx_codec_create(chip, model[dev], probe_mask[dev]); + err = azx_codec_create(chip, model[dev], probe_mask[dev], + probe_only[dev]); if (err < 0) goto out_free; |