ALSA: hda-intel - remove model=hwio , use probe_only=3 instead

The probe_only module parameter skips the codec initialization, too.
Remove the model=hwio code and use second bit in probe_only to
skip the HDA codec reset procedure.

Signed-off-by: Jaroslav Kysela <perex@perex.cz>

Documentation/sound/alsa/HD-Audio.txt

@@ -597,6 +597,9 @@ probing, the proc file is available, so you can get the raw codec
 information before modified by the driver.  Of course, the driver
 isn't usable with `probe_only=1`.  But you can continue the
 configuration via hwdep sysfs file if hda-reconfig option is enabled.
+Using `probe_only` mask 2 skips the reset of HDA codecs (use
+`probe_only=3` as module option). The hwdep interface can be used
+to determine the BIOS codec initialization.
 
 
 hda-verb

sound/pci/hda/hda_codec.c

@@ -609,15 +609,11 @@ int /*__devinit*/ snd_hda_bus_new(struct snd_card *card,
 }
 EXPORT_SYMBOL_HDA(snd_hda_bus_new);
 
-#define is_hwio_config(codec) \
-	(codec->modelname && !strcmp(codec->modelname, "hwio"))
 #ifdef CONFIG_SND_HDA_GENERIC
 #define is_generic_config(codec) \
-	((codec->modelname && !strcmp(codec->modelname, "generic")) || \
-	 is_hwio_config(codec))
+	(codec->modelname && !strcmp(codec->modelname, "generic"))
 #else
-#define is_generic_config(codec) \
-	is_hwio_config(codec)
+#define is_generic_config(codec)	0
 #endif
 
 #ifdef MODULE
@@ -1117,8 +1113,6 @@ int snd_hda_codec_configure(struct hda_codec *codec)
 	}
 
 	if (is_generic_config(codec)) {
-		if (is_hwio_config(codec))
-			goto patched;
 		err = snd_hda_parse_generic_codec(codec);
 		goto patched;
 	}

sound/pci/hda/hda_intel.c

@@ -2577,7 +2577,7 @@ static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci,
 
 	/* initialize chip */
 	azx_init_pci(chip);
-	azx_init_chip(chip, model[dev] == NULL || strcmp(model[dev], "hwio"));
+	azx_init_chip(chip, (probe_only[dev] & 2) == 0);
 
 	/* codec detection */
 	if (!chip->codec_mask) {
@@ -2666,7 +2666,7 @@ static int __devinit azx_probe(struct pci_dev *pci,
 			goto out_free;
 	}
 #endif
-	if (!probe_only[dev]) {
+	if ((probe_only[dev] & 1) == 0) {
 		err = azx_codec_configure(chip);
 		if (err < 0)
 			goto out_free;