ALSA: Replace the word "slave" in vmaster API

Follow the recent inclusive terminology guidelines and replace the
word "slave" in vmaster API.  I chose the word "follower" at this time
since it seems fitting for the purpose.

Note that the word "master" is kept in API, since it refers rather to
audio master volume control.

Also, while we're at it, a typo in comments is corrected, too.

Link: https://lore.kernel.org/r/20200717154517.27599-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 48 insertions, 48 deletions

diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 7e3ae4534df9..40f3c175954d 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -785,7 +785,7 @@ void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec)
 	snd_array_free(&codec->spdif_out);
 	snd_array_free(&codec->verbs);
 	codec->preset = NULL;
-	codec->slave_dig_outs = NULL;
+	codec->follower_dig_outs = NULL;
 	codec->spdif_status_reset = 0;
 	snd_array_free(&codec->mixers);
 	snd_array_free(&codec->nids);
@@ -1806,11 +1806,11 @@ int snd_hda_codec_reset(struct hda_codec *codec)
 	return 0;
 }
 
-typedef int (*map_slave_func_t)(struct hda_codec *, void *, struct snd_kcontrol *);
+typedef int (*map_follower_func_t)(struct hda_codec *, void *, struct snd_kcontrol *);
 
-/* apply the function to all matching slave ctls in the mixer list */
-static int map_slaves(struct hda_codec *codec, const char * const *slaves,
-		      const char *suffix, map_slave_func_t func, void *data) 
+/* apply the function to all matching follower ctls in the mixer list */
+static int map_followers(struct hda_codec *codec, const char * const *followers,
+			 const char *suffix, map_follower_func_t func, void *data)
 {
 	struct hda_nid_item *items;
 	const char * const *s;
@@ -1821,7 +1821,7 @@ static int map_slaves(struct hda_codec *codec, const char * const *slaves,
 		struct snd_kcontrol *sctl = items[i].kctl;
 		if (!sctl || sctl->id.iface != SNDRV_CTL_ELEM_IFACE_MIXER)
 			continue;
-		for (s = slaves; *s; s++) {
+		for (s = followers; *s; s++) {
 			char tmpname[sizeof(sctl->id.name)];
 			const char *name = *s;
 			if (suffix) {
@@ -1840,8 +1840,8 @@ static int map_slaves(struct hda_codec *codec, const char * const *slaves,
 	return 0;
 }
 
-static int check_slave_present(struct hda_codec *codec,
-			       void *data, struct snd_kcontrol *sctl)
+static int check_follower_present(struct hda_codec *codec,
+				  void *data, struct snd_kcontrol *sctl)
 {
 	return 1;
 }
@@ -1860,17 +1860,17 @@ static int put_kctl_with_value(struct snd_kcontrol *kctl, int val)
 	return 0;
 }
 
-struct slave_init_arg {
+struct follower_init_arg {
 	struct hda_codec *codec;
 	int step;
 };
 
-/* initialize the slave volume with 0dB via snd_ctl_apply_vmaster_slaves() */
-static int init_slave_0dB(struct snd_kcontrol *slave,
-			  struct snd_kcontrol *kctl,
-			  void *_arg)
+/* initialize the follower volume with 0dB via snd_ctl_apply_vmaster_followers() */
+static int init_follower_0dB(struct snd_kcontrol *follower,
+			     struct snd_kcontrol *kctl,
+			     void *_arg)
 {
-	struct slave_init_arg *arg = _arg;
+	struct follower_init_arg *arg = _arg;
 	int _tlv[4];
 	const int *tlv = NULL;
 	int step;
@@ -1879,7 +1879,7 @@ static int init_slave_0dB(struct snd_kcontrol *slave,
 	if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
 		if (kctl->tlv.c != snd_hda_mixer_amp_tlv) {
 			codec_err(arg->codec,
-				  "Unexpected TLV callback for slave %s:%d\n",
+				  "Unexpected TLV callback for follower %s:%d\n",
 				  kctl->id.name, kctl->id.index);
 			return 0; /* ignore */
 		}
@@ -1897,7 +1897,7 @@ static int init_slave_0dB(struct snd_kcontrol *slave,
 		return 0;
 	if (arg->step && arg->step != step) {
 		codec_err(arg->codec,
-			  "Mismatching dB step for vmaster slave (%d!=%d)\n",
+			  "Mismatching dB step for vmaster follower (%d!=%d)\n",
 			  arg->step, step);
 		return 0;
 	}
@@ -1905,49 +1905,49 @@ static int init_slave_0dB(struct snd_kcontrol *slave,
 	arg->step = step;
 	val = -tlv[SNDRV_CTL_TLVO_DB_SCALE_MIN] / step;
 	if (val > 0) {
-		put_kctl_with_value(slave, val);
+		put_kctl_with_value(follower, val);
 		return val;
 	}
 
 	return 0;
 }
 
-/* unmute the slave via snd_ctl_apply_vmaster_slaves() */
-static int init_slave_unmute(struct snd_kcontrol *slave,
-			     struct snd_kcontrol *kctl,
-			     void *_arg)
+/* unmute the follower via snd_ctl_apply_vmaster_followers() */
+static int init_follower_unmute(struct snd_kcontrol *follower,
+				struct snd_kcontrol *kctl,
+				void *_arg)
 {
-	return put_kctl_with_value(slave, 1);
+	return put_kctl_with_value(follower, 1);
 }
 
-static int add_slave(struct hda_codec *codec,
-		     void *data, struct snd_kcontrol *slave)
+static int add_follower(struct hda_codec *codec,
+			void *data, struct snd_kcontrol *follower)
 {
-	return snd_ctl_add_slave(data, slave);
+	return snd_ctl_add_follower(data, follower);
 }
 
 /**
- * __snd_hda_add_vmaster - create a virtual master control and add slaves
+ * __snd_hda_add_vmaster - create a virtual master control and add followers
  * @codec: HD-audio codec
  * @name: vmaster control name
  * @tlv: TLV data (optional)
- * @slaves: slave control names (optional)
- * @suffix: suffix string to each slave name (optional)
- * @init_slave_vol: initialize slaves to unmute/0dB
+ * @followers: follower control names (optional)
+ * @suffix: suffix string to each follower name (optional)
+ * @init_follower_vol: initialize followers to unmute/0dB
  * @ctl_ret: store the vmaster kcontrol in return
  *
  * Create a virtual master control with the given name.  The TLV data
  * must be either NULL or a valid data.
  *
- * @slaves is a NULL-terminated array of strings, each of which is a
- * slave control name.  All controls with these names are assigned to
+ * @followers is a NULL-terminated array of strings, each of which is a
+ * follower control name.  All controls with these names are assigned to
  * the new virtual master control.
  *
  * This function returns zero if successful or a negative error code.
  */
 int __snd_hda_add_vmaster(struct hda_codec *codec, char *name,
-			unsigned int *tlv, const char * const *slaves,
-			  const char *suffix, bool init_slave_vol,
+			  unsigned int *tlv, const char * const *followers,
+			  const char *suffix, bool init_follower_vol,
 			  struct snd_kcontrol **ctl_ret)
 {
 	struct snd_kcontrol *kctl;
@@ -1956,9 +1956,9 @@ int __snd_hda_add_vmaster(struct hda_codec *codec, char *name,
 	if (ctl_ret)
 		*ctl_ret = NULL;
 
-	err = map_slaves(codec, slaves, suffix, check_slave_present, NULL);
+	err = map_followers(codec, followers, suffix, check_follower_present, NULL);
 	if (err != 1) {
-		codec_dbg(codec, "No slave found for %s\n", name);
+		codec_dbg(codec, "No follower found for %s\n", name);
 		return 0;
 	}
 	kctl = snd_ctl_make_virtual_master(name, tlv);
@@ -1968,20 +1968,20 @@ int __snd_hda_add_vmaster(struct hda_codec *codec, char *name,
 	if (err < 0)
 		return err;
 
-	err = map_slaves(codec, slaves, suffix, add_slave, kctl);
+	err = map_followers(codec, followers, suffix, add_follower, kctl);
 	if (err < 0)
 		return err;
 
 	/* init with master mute & zero volume */
 	put_kctl_with_value(kctl, 0);
-	if (init_slave_vol) {
-		struct slave_init_arg arg = {
+	if (init_follower_vol) {
+		struct follower_init_arg arg = {
 			.codec = codec,
 			.step = 0,
 		};
-		snd_ctl_apply_vmaster_slaves(kctl,
-					     tlv ? init_slave_0dB : init_slave_unmute,
-					     &arg);
+		snd_ctl_apply_vmaster_followers(kctl,
+						tlv ? init_follower_0dB : init_follower_unmute,
+						&arg);
 	}
 
 	if (ctl_ret)
@@ -2284,7 +2284,7 @@ static unsigned int convert_to_spdif_status(unsigned short val)
 	return sbits;
 }
 
-/* set digital convert verbs both for the given NID and its slaves */
+/* set digital convert verbs both for the given NID and its followers */
 static void set_dig_out(struct hda_codec *codec, hda_nid_t nid,
 			int mask, int val)
 {
@@ -2292,7 +2292,7 @@ static void set_dig_out(struct hda_codec *codec, hda_nid_t nid,
 
 	snd_hdac_regmap_update(&codec->core, nid, AC_VERB_SET_DIGI_CONVERT_1,
 			       mask, val);
-	d = codec->slave_dig_outs;
+	d = codec->follower_dig_outs;
 	if (!d)
 		return;
 	for (; *d; d++)
@@ -3580,9 +3580,9 @@ static void setup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid,
 				    spdif->ctls & ~AC_DIG1_ENABLE & 0xff,
 				    -1);
 	snd_hda_codec_setup_stream(codec, nid, stream_tag, 0, format);
-	if (codec->slave_dig_outs) {
+	if (codec->follower_dig_outs) {
 		const hda_nid_t *d;
-		for (d = codec->slave_dig_outs; *d; d++)
+		for (d = codec->follower_dig_outs; *d; d++)
 			snd_hda_codec_setup_stream(codec, *d, stream_tag, 0,
 						   format);
 	}
@@ -3595,9 +3595,9 @@ static void setup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid,
 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) {
+	if (codec->follower_dig_outs) {
 		const hda_nid_t *d;
-		for (d = codec->slave_dig_outs; *d; d++)
+		for (d = codec->follower_dig_outs; *d; d++)
 			snd_hda_codec_cleanup_stream(codec, *d);
 	}
 }
@@ -3679,7 +3679,7 @@ EXPORT_SYMBOL_GPL(snd_hda_multi_out_dig_close);
  * @hinfo: PCM information to assign
  *
  * Open analog outputs and set up the hw-constraints.
- * If the digital outputs can be opened as slave, open the digital
+ * If the digital outputs can be opened as follower, open the digital
  * outputs, too.
  */
 int snd_hda_multi_out_analog_open(struct hda_codec *codec,