From 0ba21762d3966d242cb2486a76f83e5a34933f95 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 16 Apr 2007 11:29:14 +0200
Subject: [ALSA] hda-codec - Code clean up

Trivial code clean-ups to follow the standard coding styles.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
---
 sound/pci/hda/hda_codec.c | 466 +++++++++++++++++++++++++++-------------------
 1 file changed, 276 insertions(+), 190 deletions(-)

(limited to 'sound')

diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index fe4acfa9e4e..2fdd1652bad 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -71,12 +71,13 @@ static struct hda_vendor_id hda_vendor_ids[] = {
  *
  * Returns the obtained response value, or -1 for an error.
  */
-unsigned int snd_hda_codec_read(struct hda_codec *codec, hda_nid_t nid, int direct,
+unsigned int snd_hda_codec_read(struct hda_codec *codec, hda_nid_t nid,
+				int direct,
 				unsigned int verb, unsigned int parm)
 {
 	unsigned int res;
 	mutex_lock(&codec->bus->cmd_mutex);
-	if (! codec->bus->ops.command(codec, nid, direct, verb, parm))
+	if (!codec->bus->ops.command(codec, nid, direct, verb, parm))
 		res = codec->bus->ops.get_response(codec);
 	else
 		res = (unsigned int)-1;
@@ -129,7 +130,8 @@ void snd_hda_sequence_write(struct hda_codec *codec, const struct hda_verb *seq)
  * Parse the NID and store the start NID of its sub-nodes.
  * Returns the number of sub-nodes.
  */
-int snd_hda_get_sub_nodes(struct hda_codec *codec, hda_nid_t nid, hda_nid_t *start_id)
+int snd_hda_get_sub_nodes(struct hda_codec *codec, hda_nid_t nid,
+			  hda_nid_t *start_id)
 {
 	unsigned int parm;
 
@@ -173,12 +175,13 @@ int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
 	conn_len = parm & AC_CLIST_LENGTH;
 	mask = (1 << (shift-1)) - 1;
 
-	if (! conn_len)
+	if (!conn_len)
 		return 0; /* no connection */
 
 	if (conn_len == 1) {
 		/* single connection */
-		parm = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONNECT_LIST, 0);
+		parm = snd_hda_codec_read(codec, nid, 0,
+					  AC_VERB_GET_CONNECT_LIST, 0);
 		conn_list[0] = parm & mask;
 		return 1;
 	}
@@ -193,18 +196,21 @@ int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
 		if (i % num_elems == 0)
 			parm = snd_hda_codec_read(codec, nid, 0,
 						  AC_VERB_GET_CONNECT_LIST, i);
-		range_val = !! (parm & (1 << (shift-1))); /* ranges */
+		range_val = !!(parm & (1 << (shift-1))); /* ranges */
 		val = parm & mask;
 		parm >>= shift;
 		if (range_val) {
 			/* ranges between the previous and this one */
-			if (! prev_nid || prev_nid >= val) {
-				snd_printk(KERN_WARNING "hda_codec: invalid dep_range_val %x:%x\n", prev_nid, val);
+			if (!prev_nid || prev_nid >= val) {
+				snd_printk(KERN_WARNING "hda_codec: "
+					   "invalid dep_range_val %x:%x\n",
+					   prev_nid, val);
 				continue;
 			}
 			for (n = prev_nid + 1; n <= val; n++) {
 				if (conns >= max_conns) {
-					snd_printk(KERN_ERR "Too many connections\n");
+					snd_printk(KERN_ERR
+						   "Too many connections\n");
 					return -EINVAL;
 				}
 				conn_list[conns++] = n;
@@ -239,7 +245,8 @@ int snd_hda_queue_unsol_event(struct hda_bus *bus, u32 res, u32 res_ex)
 	struct hda_bus_unsolicited *unsol;
 	unsigned int wp;
 
-	if ((unsol = bus->unsol) == NULL)
+	unsol = bus->unsol;
+	if (!unsol)
 		return 0;
 
 	wp = (unsol->wp + 1) % HDA_UNSOL_QUEUE_SIZE;
@@ -271,7 +278,7 @@ static void process_unsol_events(struct work_struct *work)
 		rp <<= 1;
 		res = unsol->queue[rp];
 		caddr = unsol->queue[rp + 1];
-		if (! (caddr & (1 << 4))) /* no unsolicited event? */
+		if (!(caddr & (1 << 4))) /* no unsolicited event? */
 			continue;
 		codec = bus->caddr_tbl[caddr & 0x0f];
 		if (codec && codec->patch_ops.unsol_event)
@@ -290,8 +297,9 @@ static int __devinit init_unsol_queue(struct hda_bus *bus)
 		return 0;
 
 	unsol = kzalloc(sizeof(*unsol), GFP_KERNEL);
-	if (! unsol) {
-		snd_printk(KERN_ERR "hda_codec: can't allocate unsolicited queue\n");
+	if (!unsol) {
+		snd_printk(KERN_ERR "hda_codec: "
+			   "can't allocate unsolicited queue\n");
 		return -ENOMEM;
 	}
 	INIT_WORK(&unsol->work, process_unsol_events);
@@ -307,16 +315,15 @@ static void snd_hda_codec_free(struct hda_codec *codec);
 
 static int snd_hda_bus_free(struct hda_bus *bus)
 {
-	struct list_head *p, *n;
+	struct hda_codec *codec, *n;
 
-	if (! bus)
+	if (!bus)
 		return 0;
 	if (bus->unsol) {
 		flush_scheduled_work();
 		kfree(bus->unsol);
 	}
-	list_for_each_safe(p, n, &bus->codec_list) {
-		struct hda_codec *codec = list_entry(p, struct hda_codec, list);
+	list_for_each_entry_safe(codec, n, &bus->codec_list, list) {
 		snd_hda_codec_free(codec);
 	}
 	if (bus->ops.private_free)
@@ -370,7 +377,8 @@ int __devinit snd_hda_bus_new(struct snd_card *card,
 	mutex_init(&bus->cmd_mutex);
 	INIT_LIST_HEAD(&bus->codec_list);
 
-	if ((err = snd_device_new(card, SNDRV_DEV_BUS, bus, &dev_ops)) < 0) {
+	err = snd_device_new(card, SNDRV_DEV_BUS, bus, &dev_ops);
+	if (err < 0) {
 		snd_hda_bus_free(bus);
 		return err;
 	}
@@ -393,10 +401,10 @@ find_codec_preset(struct hda_codec *codec)
 	for (tbl = hda_preset_tables; *tbl; tbl++) {
 		for (preset = *tbl; preset->id; preset++) {
 			u32 mask = preset->mask;
-			if (! mask)
+			if (!mask)
 				mask = ~0;
 			if (preset->id == (codec->vendor_id & mask) &&
-			    (! preset->rev ||
+			    (!preset->rev ||
 			     preset->rev == codec->revision_id))
 				return preset;
 		}
@@ -421,14 +429,15 @@ void snd_hda_get_codec_name(struct hda_codec *codec,
 			break;
 		}
 	}
-	if (! vendor) {
+	if (!vendor) {
 		sprintf(tmp, "Generic %04x", vendor_id);
 		vendor = tmp;
 	}
 	if (codec->preset && codec->preset->name)
 		snprintf(name, namelen, "%s %s", vendor, codec->preset->name);
 	else
-		snprintf(name, namelen, "%s ID %x", vendor, codec->vendor_id & 0xffff);
+		snprintf(name, namelen, "%s ID %x", vendor,
+			 codec->vendor_id & 0xffff);
 }
 
 /*
@@ -441,7 +450,9 @@ static void __devinit setup_fg_nodes(struct hda_codec *codec)
 
 	total_nodes = snd_hda_get_sub_nodes(codec, AC_NODE_ROOT, &nid);
 	for (i = 0; i < total_nodes; i++, nid++) {
-		switch((snd_hda_param_read(codec, nid, AC_PAR_FUNCTION_TYPE) & 0xff)) {
+		unsigned int func;
+		func = snd_hda_param_read(codec, nid, AC_PAR_FUNCTION_TYPE);
+		switch (func & 0xff) {
 		case AC_GRP_AUDIO_FUNCTION:
 			codec->afg = nid;
 			break;
@@ -465,7 +476,7 @@ static int read_widget_caps(struct hda_codec *codec, hda_nid_t fg_node)
 	codec->num_nodes = snd_hda_get_sub_nodes(codec, fg_node,
 						 &codec->start_nid);
 	codec->wcaps = kmalloc(codec->num_nodes * 4, GFP_KERNEL);
-	if (! codec->wcaps)
+	if (!codec->wcaps)
 		return -ENOMEM;
 	nid = codec->start_nid;
 	for (i = 0; i < codec->num_nodes; i++, nid++)
@@ -480,7 +491,7 @@ static int read_widget_caps(struct hda_codec *codec, hda_nid_t fg_node)
  */
 static void snd_hda_codec_free(struct hda_codec *codec)
 {
-	if (! codec)
+	if (!codec)
 		return;
 	list_del(&codec->list);
 	codec->bus->caddr_tbl[codec->addr] = NULL;
@@ -512,7 +523,8 @@ int __devinit snd_hda_codec_new(struct hda_bus *bus, unsigned int codec_addr,
 	snd_assert(codec_addr <= HDA_MAX_CODEC_ADDRESS, return -EINVAL);
 
 	if (bus->caddr_tbl[codec_addr]) {
-		snd_printk(KERN_ERR "hda_codec: address 0x%x is already occupied\n", codec_addr);
+		snd_printk(KERN_ERR "hda_codec: "
+			   "address 0x%x is already occupied\n", codec_addr);
 		return -EBUSY;
 	}
 
@@ -530,18 +542,21 @@ int __devinit snd_hda_codec_new(struct hda_bus *bus, unsigned int codec_addr,
 	list_add_tail(&codec->list, &bus->codec_list);
 	bus->caddr_tbl[codec_addr] = codec;
 
-	codec->vendor_id = snd_hda_param_read(codec, AC_NODE_ROOT, AC_PAR_VENDOR_ID);
+	codec->vendor_id = snd_hda_param_read(codec, AC_NODE_ROOT,
+					      AC_PAR_VENDOR_ID);
 	if (codec->vendor_id == -1)
 		/* read again, hopefully the access method was corrected
 		 * in the last read...
 		 */
 		codec->vendor_id = snd_hda_param_read(codec, AC_NODE_ROOT,
 						      AC_PAR_VENDOR_ID);
-	codec->subsystem_id = snd_hda_param_read(codec, AC_NODE_ROOT, AC_PAR_SUBSYSTEM_ID);
-	codec->revision_id = snd_hda_param_read(codec, AC_NODE_ROOT, AC_PAR_REV_ID);
+	codec->subsystem_id = snd_hda_param_read(codec, AC_NODE_ROOT,
+						 AC_PAR_SUBSYSTEM_ID);
+	codec->revision_id = snd_hda_param_read(codec, AC_NODE_ROOT,
+						AC_PAR_REV_ID);
 
 	setup_fg_nodes(codec);
-	if (! codec->afg && ! codec->mfg) {
+	if (!codec->afg && !codec->mfg) {
 		snd_printdd("hda_codec: no AFG or MFG node found\n");
 		snd_hda_codec_free(codec);
 		return -ENODEV;
@@ -553,15 +568,15 @@ int __devinit snd_hda_codec_new(struct hda_bus *bus, unsigned int codec_addr,
 		return -ENOMEM;
 	}
 
-	if (! codec->subsystem_id) {
+	if (!codec->subsystem_id) {
 		hda_nid_t nid = codec->afg ? codec->afg : codec->mfg;
-		codec->subsystem_id = snd_hda_codec_read(codec, nid, 0,
-							 AC_VERB_GET_SUBSYSTEM_ID,
-							 0);
+		codec->subsystem_id =
+			snd_hda_codec_read(codec, nid, 0,
+					   AC_VERB_GET_SUBSYSTEM_ID, 0);
 	}
 
 	codec->preset = find_codec_preset(codec);
-	if (! *bus->card->mixername)
+	if (!*bus->card->mixername)
 		snd_hda_get_codec_name(codec, bus->card->mixername,
 				       sizeof(bus->card->mixername));
 
@@ -595,13 +610,15 @@ int __devinit snd_hda_codec_new(struct hda_bus *bus, unsigned int codec_addr,
  * @channel_id: channel id to pass, zero based.
  * @format: stream format.
  */
-void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid, u32 stream_tag,
+void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
+				u32 stream_tag,
 				int channel_id, int format)
 {
-	if (! nid)
+	if (!nid)
 		return;
 
-	snd_printdd("hda_codec_setup_stream: NID=0x%x, stream=0x%x, channel=%d, format=0x%x\n",
+	snd_printdd("hda_codec_setup_stream: "
+		    "NID=0x%x, stream=0x%x, channel=%d, format=0x%x\n",
 		    nid, stream_tag, channel_id, format);
 	snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID,
 			    (stream_tag << 4) | channel_id);
@@ -645,15 +662,18 @@ static struct hda_amp_info *get_alloc_amp_hash(struct hda_codec *codec, u32 key)
 	if (codec->num_amp_entries >= codec->amp_info_size) {
 		/* reallocate the array */
 		int new_size = codec->amp_info_size + 64;
-		struct hda_amp_info *new_info = kcalloc(new_size, sizeof(struct hda_amp_info),
-							GFP_KERNEL);
-		if (! new_info) {
-			snd_printk(KERN_ERR "hda_codec: can't malloc amp_info\n");
+		struct hda_amp_info *new_info;
+		new_info = kcalloc(new_size, sizeof(struct hda_amp_info),
+				   GFP_KERNEL);
+		if (!new_info) {
+			snd_printk(KERN_ERR "hda_codec: "
+				   "can't malloc amp_info\n");
 			return NULL;
 		}
 		if (codec->amp_info) {
 			memcpy(new_info, codec->amp_info,
-			       codec->amp_info_size * sizeof(struct hda_amp_info));
+			       codec->amp_info_size *
+			       sizeof(struct hda_amp_info));
 			kfree(codec->amp_info);
 		}
 		codec->amp_info_size = new_size;
@@ -674,15 +694,18 @@ static struct hda_amp_info *get_alloc_amp_hash(struct hda_codec *codec, u32 key)
  */
 static u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
 {
-	struct hda_amp_info *info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, 0));
+	struct hda_amp_info *info;
 
-	if (! info)
+	info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, 0));
+	if (!info)
 		return 0;
-	if (! (info->status & INFO_AMP_CAPS)) {
-		if (! (get_wcaps(codec, nid) & AC_WCAP_AMP_OVRD))
+	if (!(info->status & INFO_AMP_CAPS)) {
+		if (!(get_wcaps(codec, nid) & AC_WCAP_AMP_OVRD))
 			nid = codec->afg;
-		info->amp_caps = snd_hda_param_read(codec, nid, direction == HDA_OUTPUT ?
-						    AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP);
+		info->amp_caps = snd_hda_param_read(codec, nid,
+						    direction == HDA_OUTPUT ?
+						    AC_PAR_AMP_OUT_CAP :
+						    AC_PAR_AMP_IN_CAP);
 		info->status |= INFO_AMP_CAPS;
 	}
 	return info->amp_caps;
@@ -692,8 +715,9 @@ static u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
  * read the current volume to info
  * if the cache exists, read the cache value.
  */
-static unsigned int get_vol_mute(struct hda_codec *codec, struct hda_amp_info *info,
-			 hda_nid_t nid, int ch, int direction, int index)
+static unsigned int get_vol_mute(struct hda_codec *codec,
+				 struct hda_amp_info *info, hda_nid_t nid,
+				 int ch, int direction, int index)
 {
 	u32 val, parm;
 
@@ -703,7 +727,8 @@ static unsigned int get_vol_mute(struct hda_codec *codec, struct hda_amp_info *i
 	parm = ch ? AC_AMP_GET_RIGHT : AC_AMP_GET_LEFT;
 	parm |= direction == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT;
 	parm |= index;
-	val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_AMP_GAIN_MUTE, parm);
+	val = snd_hda_codec_read(codec, nid, 0,
+				 AC_VERB_GET_AMP_GAIN_MUTE, parm);
 	info->vol[ch] = val & 0xff;
 	info->status |= INFO_AMP_VOL(ch);
 	return info->vol[ch];
@@ -713,7 +738,8 @@ static unsigned int get_vol_mute(struct hda_codec *codec, struct hda_amp_info *i
  * write the current volume in info to the h/w and update the cache
  */
 static void put_vol_mute(struct hda_codec *codec, struct hda_amp_info *info,
-			 hda_nid_t nid, int ch, int direction, int index, int val)
+			 hda_nid_t nid, int ch, int direction, int index,
+			 int val)
 {
 	u32 parm;
 
@@ -731,8 +757,9 @@ static void put_vol_mute(struct hda_codec *codec, struct hda_amp_info *info,
 int snd_hda_codec_amp_read(struct hda_codec *codec, hda_nid_t nid, int ch,
 			   int direction, int index)
 {
-	struct hda_amp_info *info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, index));
-	if (! info)
+	struct hda_amp_info *info;
+	info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, index));
+	if (!info)
 		return 0;
 	return get_vol_mute(codec, info, nid, ch, direction, index);
 }
@@ -743,13 +770,14 @@ int snd_hda_codec_amp_read(struct hda_codec *codec, hda_nid_t nid, int ch,
 int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid, int ch,
 			     int direction, int idx, int mask, int val)
 {
-	struct hda_amp_info *info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, idx));
+	struct hda_amp_info *info;
 
-	if (! info)
+	info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, idx));
+	if (!info)
 		return 0;
 	val &= mask;
 	val |= get_vol_mute(codec, info, nid, ch, direction, idx) & ~mask;
-	if (info->vol[ch] == val && ! codec->in_resume)
+	if (info->vol[ch] == val && !codec->in_resume)
 		return 0;
 	put_vol_mute(codec, info, nid, ch, direction, idx, val);
 	return 1;
@@ -766,7 +794,8 @@ int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid, int ch,
 #define get_amp_index(kc)	(((kc)->private_value >> 19) & 0xf)
 
 /* volume */
-int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
+int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_info *uinfo)
 {
 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 	u16 nid = get_amp_nid(kcontrol);
@@ -775,9 +804,11 @@ int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_
 	u32 caps;
 
 	caps = query_amp_caps(codec, nid, dir);
-	caps = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT; /* num steps */
-	if (! caps) {
-		printk(KERN_WARNING "hda_codec: num_steps = 0 for NID=0x%x\n", nid);
+	/* num steps */
+	caps = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
+	if (!caps) {
+		printk(KERN_WARNING "hda_codec: "
+		       "num_steps = 0 for NID=0x%x\n", nid);
 		return -EINVAL;
 	}
 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
@@ -787,7 +818,8 @@ int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_
 	return 0;
 }
 
-int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *ucontrol)
 {
 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 	hda_nid_t nid = get_amp_nid(kcontrol);
@@ -803,7 +835,8 @@ int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_e
 	return 0;
 }
 
-int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *ucontrol)
 {
 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 	hda_nid_t nid = get_amp_nid(kcontrol);
@@ -835,7 +868,8 @@ int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
 	if (size < 4 * sizeof(unsigned int))
 		return -ENOMEM;
 	caps = query_amp_caps(codec, nid, dir);
-	val2 = (((caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT) + 1) * 25;
+	val2 = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT;
+	val2 = (val2 + 1) * 25;
 	val1 = -((caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT);
 	val1 = ((int)val1) * ((int)val2);
 	if (put_user(SNDRV_CTL_TLVT_DB_SCALE, _tlv))
@@ -850,7 +884,8 @@ int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
 }
 
 /* switch */
-int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
+int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_info *uinfo)
 {
 	int chs = get_amp_channels(kcontrol);
 
@@ -861,7 +896,8 @@ int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol, struct snd_ctl_
 	return 0;
 }
 
-int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *ucontrol)
 {
 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 	hda_nid_t nid = get_amp_nid(kcontrol);
@@ -871,13 +907,16 @@ int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_e
 	long *valp = ucontrol->value.integer.value;
 
 	if (chs & 1)
-		*valp++ = (snd_hda_codec_amp_read(codec, nid, 0, dir, idx) & 0x80) ? 0 : 1;
+		*valp++ = (snd_hda_codec_amp_read(codec, nid, 0, dir, idx) &
+			   0x80) ? 0 : 1;
 	if (chs & 2)
-		*valp = (snd_hda_codec_amp_read(codec, nid, 1, dir, idx) & 0x80) ? 0 : 1;
+		*valp = (snd_hda_codec_amp_read(codec, nid, 1, dir, idx) &
+			 0x80) ? 0 : 1;
 	return 0;
 }
 
-int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *ucontrol)
 {
 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 	hda_nid_t nid = get_amp_nid(kcontrol);
@@ -908,7 +947,8 @@ int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_e
 #define AMP_VAL_IDX_SHIFT	19
 #define AMP_VAL_IDX_MASK	(0x0f<<19)
 
-int snd_hda_mixer_bind_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+int snd_hda_mixer_bind_switch_get(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
 {
 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 	unsigned long pval;
@@ -923,7 +963,8 @@ int snd_hda_mixer_bind_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_
 	return err;
 }
 
-int snd_hda_mixer_bind_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+int snd_hda_mixer_bind_switch_put(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
 {
 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 	unsigned long pval;
@@ -933,7 +974,8 @@ int snd_hda_mixer_bind_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_
 	pval = kcontrol->private_value;
 	indices = (pval & AMP_VAL_IDX_MASK) >> AMP_VAL_IDX_SHIFT;
 	for (i = 0; i < indices; i++) {
-		kcontrol->private_value = (pval & ~AMP_VAL_IDX_MASK) | (i << AMP_VAL_IDX_SHIFT);
+		kcontrol->private_value = (pval & ~AMP_VAL_IDX_MASK) |
+			(i << AMP_VAL_IDX_SHIFT);
 		err = snd_hda_mixer_amp_switch_put(kcontrol, ucontrol);
 		if (err < 0)
 			break;
@@ -948,14 +990,16 @@ int snd_hda_mixer_bind_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_
  * SPDIF out controls
  */
 
-static int snd_hda_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
+static int snd_hda_spdif_mask_info(struct snd_kcontrol *kcontrol,
+				   struct snd_ctl_elem_info *uinfo)
 {
 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
 	uinfo->count = 1;
 	return 0;
 }
 
-static int snd_hda_spdif_cmask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+static int snd_hda_spdif_cmask_get(struct snd_kcontrol *kcontrol,
+				   struct snd_ctl_elem_value *ucontrol)
 {
 	ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
 					   IEC958_AES0_NONAUDIO |
@@ -966,7 +1010,8 @@ static int snd_hda_spdif_cmask_get(struct snd_kcontrol *kcontrol, struct snd_ctl
 	return 0;
 }
 
-static int snd_hda_spdif_pmask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+static int snd_hda_spdif_pmask_get(struct snd_kcontrol *kcontrol,
+				   struct snd_ctl_elem_value *ucontrol)
 {
 	ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
 					   IEC958_AES0_NONAUDIO |
@@ -974,7 +1019,8 @@ static int snd_hda_spdif_pmask_get(struct snd_kcontrol *kcontrol, struct snd_ctl
 	return 0;
 }
 
-static int snd_hda_spdif_default_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+static int snd_hda_spdif_default_get(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_value *ucontrol)
 {
 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 
@@ -994,19 +1040,21 @@ static unsigned short convert_from_spdif_status(unsigned int sbits)
 	unsigned short val = 0;
 
 	if (sbits & IEC958_AES0_PROFESSIONAL)
-		val |= 1 << 6;
+		val |= AC_DIG1_PROFESSIONAL;
 	if (sbits & IEC958_AES0_NONAUDIO)
-		val |= 1 << 5;
+		val |= AC_DIG1_NONAUDIO;
 	if (sbits & IEC958_AES0_PROFESSIONAL) {
-		if ((sbits & IEC958_AES0_PRO_EMPHASIS) == IEC958_AES0_PRO_EMPHASIS_5015)
-			val |= 1 << 3;
+		if ((sbits & IEC958_AES0_PRO_EMPHASIS) ==
+		    IEC958_AES0_PRO_EMPHASIS_5015)
+			val |= AC_DIG1_EMPHASIS;
 	} else {
-		if ((sbits & IEC958_AES0_CON_EMPHASIS) == IEC958_AES0_CON_EMPHASIS_5015)
-			val |= 1 << 3;
-		if (! (sbits & IEC958_AES0_CON_NOT_COPYRIGHT))
-			val |= 1 << 4;
+		if ((sbits & IEC958_AES0_CON_EMPHASIS) ==
+		    IEC958_AES0_CON_EMPHASIS_5015)
+			val |= AC_DIG1_EMPHASIS;
+		if (!(sbits & IEC958_AES0_CON_NOT_COPYRIGHT))
+			val |= AC_DIG1_COPYRIGHT;
 		if (sbits & (IEC958_AES1_CON_ORIGINAL << 8))
-			val |= 1 << 7;
+			val |= AC_DIG1_LEVEL;
 		val |= sbits & (IEC958_AES1_CON_CATEGORY << 8);
 	}
 	return val;
@@ -1018,26 +1066,27 @@ static unsigned int convert_to_spdif_status(unsigned short val)
 {
 	unsigned int sbits = 0;
 
-	if (val & (1 << 5))
+	if (val & AC_DIG1_NONAUDIO)
 		sbits |= IEC958_AES0_NONAUDIO;
-	if (val & (1 << 6))
+	if (val & AC_DIG1_PROFESSIONAL)
 		sbits |= IEC958_AES0_PROFESSIONAL;
 	if (sbits & IEC958_AES0_PROFESSIONAL) {
-		if (sbits & (1 << 3))
+		if (sbits & AC_DIG1_EMPHASIS)
 			sbits |= IEC958_AES0_PRO_EMPHASIS_5015;
 	} else {
-		if (val & (1 << 3))
+		if (val & AC_DIG1_EMPHASIS)
 			sbits |= IEC958_AES0_CON_EMPHASIS_5015;
-		if (! (val & (1 << 4)))
+		if (!(val & AC_DIG1_COPYRIGHT))
 			sbits |= IEC958_AES0_CON_NOT_COPYRIGHT;
-		if (val & (1 << 7))
+		if (val & AC_DIG1_LEVEL)
 			sbits |= (IEC958_AES1_CON_ORIGINAL << 8);
 		sbits |= val & (0x7f << 8);
 	}
 	return sbits;
 }
 
-static int snd_hda_spdif_default_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+static int snd_hda_spdif_default_put(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_value *ucontrol)
 {
 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 	hda_nid_t nid = kcontrol->private_value;
@@ -1055,15 +1104,18 @@ static int snd_hda_spdif_default_put(struct snd_kcontrol *kcontrol, struct snd_c
 	codec->spdif_ctls = val;
 
 	if (change || codec->in_resume) {
-		snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1, val & 0xff);
-		snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_2, val >> 8);
+		snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1,
+				    val & 0xff);
+		snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_2,
+				    val >> 8);
 	}
 
 	mutex_unlock(&codec->spdif_mutex);
 	return change;
 }
 
-static int snd_hda_spdif_out_switch_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
+static int snd_hda_spdif_out_switch_info(struct snd_kcontrol *kcontrol,
+					 struct snd_ctl_elem_info *uinfo)
 {
 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
 	uinfo->count = 1;
@@ -1072,15 +1124,17 @@ static int snd_hda_spdif_out_switch_info(struct snd_kcontrol *kcontrol, struct s
 	return 0;
 }
 
-static int snd_hda_spdif_out_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+static int snd_hda_spdif_out_switch_get(struct snd_kcontrol *kcontrol,
+					struct snd_ctl_elem_value *ucontrol)
 {
 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 
-	ucontrol->value.integer.value[0] = codec->spdif_ctls & 1;
+	ucontrol->value.integer.value[0] = codec->spdif_ctls & AC_DIG1_ENABLE;
 	return 0;
 }
 
-static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol,
+					struct snd_ctl_elem_value *ucontrol)
 {
 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 	hda_nid_t nid = kcontrol->private_value;
@@ -1088,20 +1142,21 @@ static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol, struct sn
 	int change;
 
 	mutex_lock(&codec->spdif_mutex);
-	val = codec->spdif_ctls & ~1;
+	val = codec->spdif_ctls & ~AC_DIG1_ENABLE;
 	if (ucontrol->value.integer.value[0])
-		val |= 1;
+		val |= AC_DIG1_ENABLE;
 	change = codec->spdif_ctls != val;
 	if (change || codec->in_resume) {
 		codec->spdif_ctls = val;
 		snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1,
 				    val & 0xff);
-		if (get_wcaps(codec, nid) & AC_WCAP_OUT_AMP)
+		/* unmute amp switch (if any) */
+		if ((get_wcaps(codec, nid) & AC_WCAP_OUT_AMP) &&
+		    (val & AC_DIG1_ENABLE))
 			snd_hda_codec_write(codec, nid, 0,
 					    AC_VERB_SET_AMP_GAIN_MUTE,
 					    AC_AMP_SET_RIGHT | AC_AMP_SET_LEFT |
-					    AC_AMP_SET_OUTPUT |
-					    ((val & 1) ? 0 : 0x80));
+					    AC_AMP_SET_OUTPUT);
 	}
 	mutex_unlock(&codec->spdif_mutex);
 	return change;
@@ -1159,10 +1214,12 @@ int __devinit snd_hda_create_spdif_out_ctls(struct hda_codec *codec,
 	for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
 		kctl = snd_ctl_new1(dig_mix, codec);
 		kctl->private_value = nid;
-		if ((err = snd_ctl_add(codec->bus->card, kctl)) < 0)
+		err = snd_ctl_add(codec->bus->card, kctl);
+		if (err < 0)
 			return err;
 	}
-	codec->spdif_ctls = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0);
+	codec->spdif_ctls =
+		snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0);
 	codec->spdif_status = convert_to_spdif_status(codec->spdif_ctls);
 	return 0;
 }
@@ -1173,7 +1230,8 @@ int __devinit snd_hda_create_spdif_out_ctls(struct hda_codec *codec,
 
 #define snd_hda_spdif_in_switch_info	snd_hda_spdif_out_switch_info
 
-static int snd_hda_spdif_in_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+static int snd_hda_spdif_in_switch_get(struct snd_kcontrol *kcontrol,
+				       struct snd_ctl_elem_value *ucontrol)
 {
 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 
@@ -1181,7 +1239,8 @@ static int snd_hda_spdif_in_switch_get(struct snd_kcontrol *kcontrol, struct snd
 	return 0;
 }
 
-static int snd_hda_spdif_in_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+static int snd_hda_spdif_in_switch_put(struct snd_kcontrol *kcontrol,
+				       struct snd_ctl_elem_value *ucontrol)
 {
 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 	hda_nid_t nid = kcontrol->private_value;
@@ -1192,13 +1251,15 @@ static int snd_hda_spdif_in_switch_put(struct snd_kcontrol *kcontrol, struct snd
 	change = codec->spdif_in_enable != val;
 	if (change || codec->in_resume) {
 		codec->spdif_in_enable = val;
-		snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1, val);
+		snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1,
+				    val);
 	}
 	mutex_unlock(&codec->spdif_mutex);
 	return change;
 }
 
-static int snd_hda_spdif_in_status_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+static int snd_hda_spdif_in_status_get(struct snd_kcontrol *kcontrol,
+				       struct snd_ctl_elem_value *ucontrol)
 {
 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 	hda_nid_t nid = kcontrol->private_value;
@@ -1252,10 +1313,13 @@ int __devinit snd_hda_create_spdif_in_ctls(struct hda_codec *codec,
 	for (dig_mix = dig_in_ctls; dig_mix->name; dig_mix++) {
 		kctl = snd_ctl_new1(dig_mix, codec);
 		kctl->private_value = nid;
-		if ((err = snd_ctl_add(codec->bus->card, kctl)) < 0)
+		err = snd_ctl_add(codec->bus->card, kctl);
+		if (err < 0)
 			return err;
 	}
-	codec->spdif_in_enable = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0) & 1;
+	codec->spdif_in_enable =
+		snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0) &
+		AC_DIG1_ENABLE;
 	return 0;
 }
 
@@ -1295,13 +1359,12 @@ static void hda_set_power_state(struct hda_codec *codec, hda_nid_t fg,
  */
 int __devinit snd_hda_build_controls(struct hda_bus *bus)
 {
-	struct list_head *p;
+	struct hda_codec *codec;
 
 	/* build controls */
-	list_for_each(p, &bus->codec_list) {
-		struct hda_codec *codec = list_entry(p, struct hda_codec, list);
+	list_for_each_entry(codec, &bus->codec_list, list) {
 		int err;
-		if (! codec->patch_ops.build_controls)
+		if (!codec->patch_ops.build_controls)
 			continue;
 		err = codec->patch_ops.build_controls(codec);
 		if (err < 0)
@@ -1309,13 +1372,12 @@ int __devinit snd_hda_build_controls(struct hda_bus *bus)
 	}
 
 	/* initialize */
-	list_for_each(p, &bus->codec_list) {
-		struct hda_codec *codec = list_entry(p, struct hda_codec, list);
+	list_for_each_entry(codec, &bus->codec_list, list) {
 		int err;
 		hda_set_power_state(codec,
 				    codec->afg ? codec->afg : codec->mfg,
 				    AC_PWRST_D0);
-		if (! codec->patch_ops.init)
+		if (!codec->patch_ops.init)
 			continue;
 		err = codec->patch_ops.init(codec);
 		if (err < 0)
@@ -1381,7 +1443,7 @@ unsigned int snd_hda_calc_stream_format(unsigned int rate,
 			val = rate_bits[i].hda_fmt;
 			break;
 		}
-	if (! rate_bits[i].hz) {
+	if (!rate_bits[i].hz) {
 		snd_printdd("invalid rate %d\n", rate);
 		return 0;
 	}
@@ -1406,7 +1468,8 @@ unsigned int snd_hda_calc_stream_format(unsigned int rate,
 			val |= 0x20;
 		break;
 	default:
-		snd_printdd("invalid format width %d\n", snd_pcm_format_width(format));
+		snd_printdd("invalid format width %d\n",
+			    snd_pcm_format_width(format));
 		return 0;
 	}
 
@@ -1439,7 +1502,7 @@ int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid,
 		if (val == -1)
 			return -EIO;
 	}
-	if (! val)
+	if (!val)
 		val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
 
 	if (ratesp) {
@@ -1460,8 +1523,9 @@ int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid,
 		streams = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
 		if (streams == -1)
 			return -EIO;
-		if (! streams) {
-			streams = snd_hda_param_read(codec, codec->afg, AC_PAR_STREAM);
+		if (!streams) {
+			streams = snd_hda_param_read(codec, codec->afg,
+						     AC_PAR_STREAM);
 			if (streams == -1)
 				return -EIO;
 		}
@@ -1485,7 +1549,8 @@ int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid,
 					bps = 24;
 				else if (val & AC_SUPPCM_BITS_20)
 					bps = 20;
-			} else if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24|AC_SUPPCM_BITS_32)) {
+			} else if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24|
+					  AC_SUPPCM_BITS_32)) {
 				formats |= SNDRV_PCM_FMTBIT_S32_LE;
 				if (val & AC_SUPPCM_BITS_32)
 					bps = 32;
@@ -1495,10 +1560,12 @@ int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid,
 					bps = 20;
 			}
 		}
-		else if (streams == AC_SUPFMT_FLOAT32) { /* should be exclusive */
+		else if (streams == AC_SUPFMT_FLOAT32) {
+			/* should be exclusive */
 			formats |= SNDRV_PCM_FMTBIT_FLOAT_LE;
 			bps = 32;
-		} else if (streams == AC_SUPFMT_AC3) { /* should be exclusive */
+		} else if (streams == AC_SUPFMT_AC3) {
+			/* should be exclusive */
 			/* temporary hack: we have still no proper support
 			 * for the direct AC3 stream...
 			 */
@@ -1515,7 +1582,8 @@ int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid,
 }
 
 /**
- * snd_hda_is_supported_format - check whether the given node supports the format val
+ * snd_hda_is_supported_format - check whether the given node supports
+ * the format val
  *
  * Returns 1 if supported, 0 if not.
  */
@@ -1531,7 +1599,7 @@ int snd_hda_is_supported_format(struct hda_codec *codec, hda_nid_t nid,
 		if (val == -1)
 			return 0;
 	}
-	if (! val) {
+	if (!val) {
 		val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
 		if (val == -1)
 			return 0;
@@ -1550,31 +1618,31 @@ int snd_hda_is_supported_format(struct hda_codec *codec, hda_nid_t nid,
 	stream = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
 	if (stream == -1)
 		return 0;
-	if (! stream && nid != codec->afg)
+	if (!stream && nid != codec->afg)
 		stream = snd_hda_param_read(codec, codec->afg, AC_PAR_STREAM);
-	if (! stream || stream == -1)
+	if (!stream || stream == -1)
 		return 0;
 
 	if (stream & AC_SUPFMT_PCM) {
 		switch (format & 0xf0) {
 		case 0x00:
-			if (! (val & AC_SUPPCM_BITS_8))
+			if (!(val & AC_SUPPCM_BITS_8))
 				return 0;
 			break;
 		case 0x10:
-			if (! (val & AC_SUPPCM_BITS_16))
+			if (!(val & AC_SUPPCM_BITS_16))
 				return 0;
 			break;
 		case 0x20:
-			if (! (val & AC_SUPPCM_BITS_20))
+			if (!(val & AC_SUPPCM_BITS_20))
 				return 0;
 			break;
 		case 0x30:
-			if (! (val & AC_SUPPCM_BITS_24))
+			if (!(val & AC_SUPPCM_BITS_24))
 				return 0;
 			break;
 		case 0x40:
-			if (! (val & AC_SUPPCM_BITS_32))
+			if (!(val & AC_SUPPCM_BITS_32))
 				return 0;
 			break;
 		default:
@@ -1615,15 +1683,15 @@ static int hda_pcm_default_cleanup(struct hda_pcm_stream *hinfo,
 	return 0;
 }
 
-static int set_pcm_default_values(struct hda_codec *codec, struct hda_pcm_stream *info)
+static int __devinit set_pcm_default_values(struct hda_codec *codec,
+					    struct hda_pcm_stream *info)
 {
-	if (info->nid) {
-		/* query support PCM information from the given NID */
-		if (! info->rates || ! info->formats)
-			snd_hda_query_supported_pcm(codec, info->nid,
-						    info->rates ? NULL : &info->rates,
-						    info->formats ? NULL : &info->formats,
-						    info->maxbps ? NULL : &info->maxbps);
+	/* query support PCM information from the given NID */
+	if (info->nid && (!info->rates || !info->formats)) {
+		snd_hda_query_supported_pcm(codec, info->nid,
+				info->rates ? NULL : &info->rates,
+				info->formats ? NULL : &info->formats,
+				info->maxbps ? NULL : &info->maxbps);
 	}
 	if (info->ops.open == NULL)
 		info->ops.open = hda_pcm_default_open_close;
@@ -1668,13 +1736,12 @@ static int set_pcm_default_values(struct hda_codec *codec, struct hda_pcm_stream
  */
 int __devinit snd_hda_build_pcms(struct hda_bus *bus)
 {
-	struct list_head *p;
+	struct hda_codec *codec;
 
-	list_for_each(p, &bus->codec_list) {
-		struct hda_codec *codec = list_entry(p, struct hda_codec, list);
+	list_for_each_entry(codec, &bus->codec_list, list) {
 		unsigned int pcm, s;
 		int err;
-		if (! codec->patch_ops.build_pcms)
+		if (!codec->patch_ops.build_pcms)
 			continue;
 		err = codec->patch_ops.build_pcms(codec);
 		if (err < 0)
@@ -1683,7 +1750,7 @@ int __devinit snd_hda_build_pcms(struct hda_bus *bus)
 			for (s = 0; s < 2; s++) {
 				struct hda_pcm_stream *info;
 				info = &codec->pcm_info[pcm].stream[s];
-				if (! info->substreams)
+				if (!info->substreams)
 					continue;
 				err = set_pcm_default_values(codec, info);
 				if (err < 0)
@@ -1767,17 +1834,18 @@ int __devinit snd_hda_add_new_ctls(struct hda_codec *codec,
 	for (; knew->name; knew++) {
 		struct snd_kcontrol *kctl;
 		kctl = snd_ctl_new1(knew, codec);
-		if (! kctl)
+		if (!kctl)
 			return -ENOMEM;
 		err = snd_ctl_add(codec->bus->card, kctl);
 		if (err < 0) {
-			if (! codec->addr)
+			if (!codec->addr)
 				return err;
 			kctl = snd_ctl_new1(knew, codec);
-			if (! kctl)
+			if (!kctl)
 				return -ENOMEM;
 			kctl->id.device = codec->addr;
-			if ((err = snd_ctl_add(codec->bus->card, kctl)) < 0)
+			err = snd_ctl_add(codec->bus->card, kctl);
+			if (err < 0)
 				return err;
 		}
 	}
@@ -1788,8 +1856,10 @@ int __devinit snd_hda_add_new_ctls(struct hda_codec *codec,
 /*
  * Channel mode helper
  */
-int snd_hda_ch_mode_info(struct hda_codec *codec, struct snd_ctl_elem_info *uinfo,
-			 const struct hda_channel_mode *chmode, int num_chmodes)
+int snd_hda_ch_mode_info(struct hda_codec *codec,
+			 struct snd_ctl_elem_info *uinfo,
+			 const struct hda_channel_mode *chmode,
+			 int num_chmodes)
 {
 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 	uinfo->count = 1;
@@ -1801,8 +1871,10 @@ int snd_hda_ch_mode_info(struct hda_codec *codec, struct snd_ctl_elem_info *uinf
 	return 0;
 }
 
-int snd_hda_ch_mode_get(struct hda_codec *codec, struct snd_ctl_elem_value *ucontrol,
-			const struct hda_channel_mode *chmode, int num_chmodes,
+int snd_hda_ch_mode_get(struct hda_codec *codec,
+			struct snd_ctl_elem_value *ucontrol,
+			const struct hda_channel_mode *chmode,
+			int num_chmodes,
 			int max_channels)
 {
 	int i;
@@ -1816,15 +1888,17 @@ int snd_hda_ch_mode_get(struct hda_codec *codec, struct snd_ctl_elem_value *ucon
 	return 0;
 }
 
-int snd_hda_ch_mode_put(struct hda_codec *codec, struct snd_ctl_elem_value *ucontrol,
-			const struct hda_channel_mode *chmode, int num_chmodes,
+int snd_hda_ch_mode_put(struct hda_codec *codec,
+			struct snd_ctl_elem_value *ucontrol,
+			const struct hda_channel_mode *chmode,
+			int num_chmodes,
 			int *max_channelsp)
 {
 	unsigned int mode;
 
 	mode = ucontrol->value.enumerated.item[0];
 	snd_assert(mode < num_chmodes, return -EINVAL);
-	if (*max_channelsp == chmode[mode].channels && ! codec->in_resume)
+	if (*max_channelsp == chmode[mode].channels && !codec->in_resume)
 		return 0;
 	/* change the current channel setting */
 	*max_channelsp = chmode[mode].channels;
@@ -1836,7 +1910,8 @@ int snd_hda_ch_mode_put(struct hda_codec *codec, struct snd_ctl_elem_value *ucon
 /*
  * input MUX helper
  */
-int snd_hda_input_mux_info(const struct hda_input_mux *imux, struct snd_ctl_elem_info *uinfo)
+int snd_hda_input_mux_info(const struct hda_input_mux *imux,
+			   struct snd_ctl_elem_info *uinfo)
 {
 	unsigned int index;
 
@@ -1850,8 +1925,10 @@ int snd_hda_input_mux_info(const struct hda_input_mux *imux, struct snd_ctl_elem
 	return 0;
 }
 
-int snd_hda_input_mux_put(struct hda_codec *codec, const struct hda_input_mux *imux,
-			  struct snd_ctl_elem_value *ucontrol, hda_nid_t nid,
+int snd_hda_input_mux_put(struct hda_codec *codec,
+			  const struct hda_input_mux *imux,
+			  struct snd_ctl_elem_value *ucontrol,
+			  hda_nid_t nid,
 			  unsigned int *cur_val)
 {
 	unsigned int idx;
@@ -1859,7 +1936,7 @@ int snd_hda_input_mux_put(struct hda_codec *codec, const struct hda_input_mux *i
 	idx = ucontrol->value.enumerated.item[0];
 	if (idx >= imux->num_items)
 		idx = imux->num_items - 1;
-	if (*cur_val == idx && ! codec->in_resume)
+	if (*cur_val == idx && !codec->in_resume)
 		return 0;
 	snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CONNECT_SEL,
 			    imux->items[idx].index);
@@ -1890,7 +1967,8 @@ static void setup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid,
 /*
  * open the digital out in the exclusive mode
  */
-int snd_hda_multi_out_dig_open(struct hda_codec *codec, struct hda_multi_out *mout)
+int snd_hda_multi_out_dig_open(struct hda_codec *codec,
+			       struct hda_multi_out *mout)
 {
 	mutex_lock(&codec->spdif_mutex);
 	if (mout->dig_out_used == HDA_DIG_ANALOG_DUP)
@@ -1916,7 +1994,8 @@ int snd_hda_multi_out_dig_prepare(struct hda_codec *codec,
 /*
  * release the digital out
  */
-int snd_hda_multi_out_dig_close(struct hda_codec *codec, struct hda_multi_out *mout)
+int snd_hda_multi_out_dig_close(struct hda_codec *codec,
+				struct hda_multi_out *mout)
 {
 	mutex_lock(&codec->spdif_mutex);
 	mout->dig_out_used = 0;
@@ -1927,7 +2006,8 @@ int snd_hda_multi_out_dig_close(struct hda_codec *codec, struct hda_multi_out *m
 /*
  * set up more restrictions for analog out
  */
-int snd_hda_multi_out_analog_open(struct hda_codec *codec, struct hda_multi_out *mout,
+int snd_hda_multi_out_analog_open(struct hda_codec *codec,
+				  struct hda_multi_out *mout,
 				  struct snd_pcm_substream *substream)
 {
 	substream->runtime->hw.channels_max = mout->max_channels;
@@ -1939,7 +2019,8 @@ int snd_hda_multi_out_analog_open(struct hda_codec *codec, struct hda_multi_out
  * set up the i/o for analog out
  * when the digital out is available, copy the front out to digital out, too.
  */
-int snd_hda_multi_out_analog_prepare(struct hda_codec *codec, struct hda_multi_out *mout,
+int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
+				     struct hda_multi_out *mout,
 				     unsigned int stream_tag,
 				     unsigned int format,
 				     struct snd_pcm_substream *substream)
@@ -1951,23 +2032,27 @@ int snd_hda_multi_out_analog_prepare(struct hda_codec *codec, struct hda_multi_o
 	mutex_lock(&codec->spdif_mutex);
 	if (mout->dig_out_nid && mout->dig_out_used != HDA_DIG_EXCLUSIVE) {
 		if (chs == 2 &&
-		    snd_hda_is_supported_format(codec, mout->dig_out_nid, format) &&
-		    ! (codec->spdif_status & IEC958_AES0_NONAUDIO)) {
+		    snd_hda_is_supported_format(codec, mout->dig_out_nid,
+						format) &&
+		    !(codec->spdif_status & IEC958_AES0_NONAUDIO)) {
 			mout->dig_out_used = HDA_DIG_ANALOG_DUP;
 			setup_dig_out_stream(codec, mout->dig_out_nid,
 					     stream_tag, format);
 		} else {
 			mout->dig_out_used = 0;
-			snd_hda_codec_setup_stream(codec, mout->dig_out_nid, 0, 0, 0);
+			snd_hda_codec_setup_stream(codec, mout->dig_out_nid,
+						   0, 0, 0);
 		}
 	}
 	mutex_unlock(&codec->spdif_mutex);
 
 	/* front */
-	snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag, 0, format);
+	snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag,
+				   0, format);
 	if (mout->hp_nid && mout->hp_nid != nids[HDA_FRONT])
 		/* headphone out will just decode front left/right (stereo) */
-		snd_hda_codec_setup_stream(codec, mout->hp_nid, stream_tag, 0, format);
+		snd_hda_codec_setup_stream(codec, mout->hp_nid, stream_tag,
+					   0, format);
 	/* extra outputs copied from front */
 	for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
 		if (mout->extra_out_nid[i])
@@ -1978,11 +2063,11 @@ int snd_hda_multi_out_analog_prepare(struct hda_codec *codec, struct hda_multi_o
 	/* surrounds */
 	for (i = 1; i < mout->num_dacs; i++) {
 		if (chs >= (i + 1) * 2) /* independent out */
-			snd_hda_codec_setup_stream(codec, nids[i], stream_tag, i * 2,
-						   format);
+			snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
+						   i * 2, format);
 		else /* copy front */
-			snd_hda_codec_setup_stream(codec, nids[i], stream_tag, 0,
-						   format);
+			snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
+						   0, format);
 	}
 	return 0;
 }
@@ -1990,7 +2075,8 @@ int snd_hda_multi_out_analog_prepare(struct hda_codec *codec, struct hda_multi_o
 /*
  * clean up the setting for analog out
  */
-int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec, struct hda_multi_out *mout)
+int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec,
+				     struct hda_multi_out *mout)
 {
 	hda_nid_t *nids = mout->dac_nids;
 	int i;
@@ -2058,7 +2144,8 @@ int __devinit snd_hda_parse_pin_def_config(struct hda_codec *codec,
 	nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid_start);
 	for (nid = nid_start; nid < nodes + nid_start; nid++) {
 		unsigned int wid_caps = get_wcaps(codec, nid);
-		unsigned int wid_type = (wid_caps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
+		unsigned int wid_type =
+			(wid_caps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
 		unsigned int def_conf;
 		short assoc, loc;
 
@@ -2069,7 +2156,8 @@ int __devinit snd_hda_parse_pin_def_config(struct hda_codec *codec,
 		if (ignore_nids && is_in_nid_list(nid, ignore_nids))
 			continue;
 
-		def_conf = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONFIG_DEFAULT, 0);
+		def_conf = snd_hda_codec_read(codec, nid, 0,
+					      AC_VERB_GET_CONFIG_DEFAULT, 0);
 		if (get_defcfg_connect(def_conf) == AC_JACK_PORT_NONE)
 			continue;
 		loc = get_defcfg_location(def_conf);
@@ -2077,9 +2165,9 @@ int __devinit snd_hda_parse_pin_def_config(struct hda_codec *codec,
 		case AC_JACK_LINE_OUT:
 			seq = get_defcfg_sequence(def_conf);
 			assoc = get_defcfg_association(def_conf);
-			if (! assoc)
+			if (!assoc)
 				continue;
-			if (! assoc_line_out)
+			if (!assoc_line_out)
 				assoc_line_out = assoc;
 			else if (assoc_line_out != assoc)
 				continue;
@@ -2198,7 +2286,7 @@ int __devinit snd_hda_parse_pin_def_config(struct hda_codec *codec,
 	 * FIX-UP: if no line-outs are detected, try to use speaker or HP pin
 	 * as a primary output
 	 */
-	if (! cfg->line_outs) {
+	if (!cfg->line_outs) {
 		if (cfg->speaker_outs) {
 			cfg->line_outs = cfg->speaker_outs;
 			memcpy(cfg->line_out_pins, cfg->speaker_pins,
@@ -2237,11 +2325,10 @@ const char *auto_pin_cfg_labels[AUTO_PIN_LAST] = {
  */
 int snd_hda_suspend(struct hda_bus *bus, pm_message_t state)
 {
-	struct list_head *p;
+	struct hda_codec *codec;
 
 	/* FIXME: should handle power widget capabilities */
-	list_for_each(p, &bus->codec_list) {
-		struct hda_codec *codec = list_entry(p, struct hda_codec, list);
+	list_for_each_entry(codec, &bus->codec_list, list) {
 		if (codec->patch_ops.suspend)
 			codec->patch_ops.suspend(codec, state);
 		hda_set_power_state(codec,
@@ -2260,10 +2347,9 @@ int snd_hda_suspend(struct hda_bus *bus, pm_message_t state)
  */
 int snd_hda_resume(struct hda_bus *bus)
 {
-	struct list_head *p;
+	struct hda_codec *codec;
 
-	list_for_each(p, &bus->codec_list) {
-		struct hda_codec *codec = list_entry(p, struct hda_codec, list);
+	list_for_each_entry(codec, &bus->codec_list, list) {
 		hda_set_power_state(codec,
 				    codec->afg ? codec->afg : codec->mfg,
 				    AC_PWRST_D0);
@@ -2287,7 +2373,7 @@ int snd_hda_resume_ctls(struct hda_codec *codec, struct snd_kcontrol_new *knew)
 	struct snd_ctl_elem_value *val;
 
 	val = kmalloc(sizeof(*val), GFP_KERNEL);
-	if (! val)
+	if (!val)
 		return -ENOMEM;
 	codec->in_resume = 1;
 	for (; knew->name; knew++) {
-- 
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