ALSA: hda - Constify some API function arguments

Also fixed the assignment of multiout.dac_nids to satisfy const.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/hda/hda_codec.c

@@ -2621,7 +2621,7 @@ static unsigned int convert_to_spdif_status(unsigned short val)
 static void set_dig_out(struct hda_codec *codec, hda_nid_t nid,
 			int verb, int val)
 {
-	hda_nid_t *d;
+	const hda_nid_t *d;
 
 	snd_hda_codec_write_cache(codec, nid, 0, verb, val);
 	d = codec->slave_dig_outs;
@@ -4184,7 +4184,7 @@ static void setup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid,
 				    -1);
 	snd_hda_codec_setup_stream(codec, nid, stream_tag, 0, format);
 	if (codec->slave_dig_outs) {
-		hda_nid_t *d;
+		const hda_nid_t *d;
 		for (d = codec->slave_dig_outs; *d; d++)
 			snd_hda_codec_setup_stream(codec, *d, stream_tag, 0,
 						   format);
@@ -4199,7 +4199,7 @@ static void cleanup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid)
 {
 	snd_hda_codec_cleanup_stream(codec, nid);
 	if (codec->slave_dig_outs) {
-		hda_nid_t *d;
+		const hda_nid_t *d;
 		for (d = codec->slave_dig_outs; *d; d++)
 			snd_hda_codec_cleanup_stream(codec, *d);
 	}
@@ -4346,7 +4346,7 @@ int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
 				     unsigned int format,
 				     struct snd_pcm_substream *substream)
 {
-	hda_nid_t *nids = mout->dac_nids;
+	const hda_nid_t *nids = mout->dac_nids;
 	int chs = substream->runtime->channels;
 	int i;
 
@@ -4401,7 +4401,7 @@ EXPORT_SYMBOL_HDA(snd_hda_multi_out_analog_prepare);
 int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec,
 				     struct hda_multi_out *mout)
 {
-	hda_nid_t *nids = mout->dac_nids;
+	const hda_nid_t *nids = mout->dac_nids;
 	int i;
 
 	for (i = 0; i < mout->num_dacs; i++)
@@ -4426,7 +4426,7 @@ EXPORT_SYMBOL_HDA(snd_hda_multi_out_analog_cleanup);
  * Helper for automatic pin configuration
  */
 
-static int is_in_nid_list(hda_nid_t nid, hda_nid_t *list)
+static int is_in_nid_list(hda_nid_t nid, const hda_nid_t *list)
 {
 	for (; *list; list++)
 		if (*list == nid)
@@ -4507,7 +4507,7 @@ static void sort_autocfg_input_pins(struct auto_pin_cfg *cfg)
  */
 int snd_hda_parse_pin_def_config(struct hda_codec *codec,
 				 struct auto_pin_cfg *cfg,
-				 hda_nid_t *ignore_nids)
+				 const hda_nid_t *ignore_nids)
 {
 	hda_nid_t nid, end_nid;
 	short seq, assoc_line_out, assoc_speaker;

sound/pci/hda/hda_codec.h

@@ -832,7 +832,7 @@ struct hda_codec {
 	unsigned int spdif_status;	/* IEC958 status bits */
 	unsigned short spdif_ctls;	/* SPDIF control bits */
 	unsigned int spdif_in_enable;	/* SPDIF input enable? */
-	hda_nid_t *slave_dig_outs; /* optional digital out slave widgets */
+	const hda_nid_t *slave_dig_outs; /* optional digital out slave widgets */
 	struct snd_array init_pins;	/* initial (BIOS) pin configurations */
 	struct snd_array driver_pins;	/* pin configs set by codec parser */
 	struct snd_array cvt_setups;	/* audio convert setups */

sound/pci/hda/hda_local.h

@@ -267,11 +267,11 @@ enum { HDA_DIG_NONE, HDA_DIG_EXCLUSIVE, HDA_DIG_ANALOG_DUP }; /* dig_out_used */
 
 struct hda_multi_out {
 	int num_dacs;		/* # of DACs, must be more than 1 */
-	hda_nid_t *dac_nids;	/* DAC list */
+	const hda_nid_t *dac_nids;	/* DAC list */
 	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;
+	const 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 */
@@ -443,7 +443,7 @@ struct auto_pin_cfg {
 
 int snd_hda_parse_pin_def_config(struct hda_codec *codec,
 				 struct auto_pin_cfg *cfg,
-				 hda_nid_t *ignore_nids);
+				 const hda_nid_t *ignore_nids);
 
 /* amp values */
 #define AMP_IN_MUTE(idx)	(0x7080 | ((idx)<<8))

sound/pci/hda/patch_analog.c

@@ -2845,7 +2845,7 @@ static int ad1988_auto_fill_dac_nids(struct hda_codec *codec,
 	/* check the pins hardwired to audio widget */
 	for (i = 0; i < cfg->line_outs; i++) {
 		idx = ad1988_pin_idx(cfg->line_out_pins[i]);
-		spec->multiout.dac_nids[i] = ad1988_idx_to_dac(codec, idx);
+		spec->private_dac_nids[i] = ad1988_idx_to_dac(codec, idx);
 	}
 	spec->multiout.num_dacs = cfg->line_outs;
 	return 0;

sound/pci/hda/patch_realtek.c

@@ -5294,7 +5294,7 @@ static int alc880_auto_fill_dac_nids(struct alc_spec *spec,
 		nid = cfg->line_out_pins[i];
 		if (alc880_is_fixed_pin(nid)) {
 			int idx = alc880_fixed_pin_idx(nid);
-			spec->multiout.dac_nids[i] = alc880_idx_to_dac(idx);
+			spec->private_dac_nids[i] = alc880_idx_to_dac(idx);
 			assigned[idx] = 1;
 		}
 	}
@@ -5306,7 +5306,7 @@ static int alc880_auto_fill_dac_nids(struct alc_spec *spec,
 		/* search for an empty channel */
 		for (j = 0; j < cfg->line_outs; j++) {
 			if (!assigned[j]) {
-				spec->multiout.dac_nids[i] =
+				spec->private_dac_nids[i] =
 					alc880_idx_to_dac(j);
 				assigned[j] = 1;
 				break;
@@ -7131,7 +7131,7 @@ static int alc260_auto_create_multi_out_ctls(struct alc_spec *spec,
 
 	spec->multiout.num_dacs = 1;
 	spec->multiout.dac_nids = spec->private_dac_nids;
-	spec->multiout.dac_nids[0] = 0x02;
+	spec->private_dac_nids[0] = 0x02;
 
 	nid = cfg->line_out_pins[0];
 	if (nid) {
@@ -12214,7 +12214,7 @@ static int alc262_auto_create_multi_out_ctls(struct alc_spec *spec,
 
 	spec->multiout.num_dacs = 1;	/* only use one dac */
 	spec->multiout.dac_nids = spec->private_dac_nids;
-	spec->multiout.dac_nids[0] = 2;
+	spec->private_dac_nids[0] = 2;
 
 	pfx = alc_get_line_out_pfx(spec, true);
 	if (!pfx)
@@ -13553,7 +13553,7 @@ static int alc268_new_analog_output(struct alc_spec *spec, hda_nid_t nid,
 						      HDA_OUTPUT));
 		if (err < 0)
 			return err;
-		spec->multiout.dac_nids[spec->multiout.num_dacs++] = dac;
+		spec->private_dac_nids[spec->multiout.num_dacs++] = dac;
 	}
 
 	if (nid != 0x16)
@@ -15951,7 +15951,7 @@ static int alc861_auto_fill_dac_nids(struct hda_codec *codec,
 		dac = alc861_look_for_dac(codec, nid);
 		if (!dac)
 			continue;
-		spec->multiout.dac_nids[spec->multiout.num_dacs++] = dac;
+		spec->private_dac_nids[spec->multiout.num_dacs++] = dac;
 	}
 	return 0;
 }
@@ -18932,7 +18932,7 @@ static int alc662_auto_fill_dac_nids(struct hda_codec *codec,
 		dac = alc_auto_look_for_dac(codec, cfg->line_out_pins[i]);
 		if (!dac)
 			continue;
-		spec->multiout.dac_nids[spec->multiout.num_dacs++] = dac;
+		spec->private_dac_nids[spec->multiout.num_dacs++] = dac;
 	}
 	return 0;
 }
@@ -19166,7 +19166,7 @@ static int alc_auto_fill_multi_ios(struct hda_codec *codec,
 			spec->multi_io[num_pins].pin = nid;
 			spec->multi_io[num_pins].dac = dac;
 			num_pins++;
-			spec->multiout.dac_nids[spec->multiout.num_dacs++] = dac;
+			spec->private_dac_nids[spec->multiout.num_dacs++] = dac;
 		}
 	}
 	spec->multiout.num_dacs = 1;
@@ -19786,7 +19786,7 @@ static int alc680_new_analog_output(struct alc_spec *spec, hda_nid_t nid,
 
 		if (err < 0)
 			return err;
-		spec->multiout.dac_nids[spec->multiout.num_dacs++] = dac;
+		spec->private_dac_nids[spec->multiout.num_dacs++] = dac;
 	}
 
 	return 0;

sound/pci/hda/patch_sigmatel.c

@@ -3072,7 +3072,8 @@ static int add_spec_dacs(struct sigmatel_spec *spec, hda_nid_t nid)
 		printk(KERN_WARNING "stac92xx: No space for DAC 0x%x\n", nid);
 		return 1;
 	} else {
-		spec->multiout.dac_nids[spec->multiout.num_dacs] = nid;
+		snd_BUG_ON(spec->multiout.dac_nids != spec->dac_nids);
+		spec->dac_nids[spec->multiout.num_dacs] = nid;
 		spec->multiout.num_dacs++;
 	}
 	return 0;