Merge tag 'sound-3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "This time it's a relatively calm update batch, but the amount isn't
  too small in the end.  Here we go over some highlights:

  ALSA core:
   - One major change is the support of nonatomic PCM operations.  This
     allows the trigger and other callbacks to call schedule(), which
     would be useful for mailbox type communications.  Already some
     drivers (Digigram ones) have been converted to use together with
     threaded irqs as an example.
   - Improvement / fixes of DSD PCM format support

  HD-audio:
   - Large volume of rewrites are found in Realtek codec driver for
     converting Dell and HP quirks to generic forms.
   - Inverted dmic code cleanup from David.
   - Realtek COEF access has been optimized.
   - Now HD-audio jack infrastructure allows multiple callbacks, which
     fixes / simplifies the jack-dependent power controls on STAC/IDT
     and VIA codecs.
   - Many additional device-specific fixups as usual
   - A few deadcode cleanups, CA0132 code cleanup, etc.

  ASoC:
   - More componentization work from Lars-Peter, this time mainly
     cleaning up the suspend and bias level transition callbacks.
   - Real system support for the Intel drivers and a bunch of fixes and
     enhancements for the associated CODEC drivers, this is going to
     need a lot quirks over time due to the lack of any firmware
     description of the boards.
   - Jack detect support for simple card from Dylan Reid.
   - A bunch of small fixes and enhancements for the Freescale drivers.
   - New drivers for Analog Devices SSM4567, Cirrus Logic CS35L32,
     Everest Semiconductor ES8328 and Freescale cards using the ASRC in
     newer i.MX processors.
   - A few simple-card fixes, mostly cleanups but also a fix for
     interaction between GPIO 0 and simple-card.

  Misc:
   - Virtuoso / Oxygen updates by Clemens
   - USB-audio: Yamaha MOTIF XF MIDI port name fixes
   - Conversion of kernel messages to standard dev_*() in ctxfi driver"

* tag 'sound-3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (251 commits)
  ASoC: mc13783: Ensure we only try to dereference valid of_nodes
  ASoC: rockchip-i2s: fix infinite loop in rockchip_snd_txctrl
  ALSA: hda - Add dock port support to Thinkpad L440 (71aa:501e)
  ALSA: Allow pass NULL dev for snd_pci_quirk_lookup()
  ASoC: imx-es8328: Fix of_node_put() call with uninitialized object
  ASoC: soc-pcm: fix sig_bits determination in soc_pcm_apply_msb()
  ASoC: simple-card: Initialize headphone and mic GPIO numbers
  ASoC: imx-es8328: Fix missing return code in imx_es8328_probe()
  ALSA: hda - Add dock support for Thinkpad T440 (17aa:2212)
  ALSA: usb: caiaq: check for cdev->n_streams > 1
  ASoC: 88pm860x-codec: Fix possibly missing string termination
  ASoC: core: fix use after free in snd_soc_remove_platform()
  ASoC: soc-dapm: fix use after free
  ALSA: hda - Make the inv dmic handling for Realtek use generic parser
  ALSA: hda - Add Inverted Internal mic for Samsung Ativ book 9 (NP900X3G)
  ALSA: hda - Add inverted internal mic for Asus Aspire 4830T
  ASoC: Intel: byt-rt5640: fix coccinelle warnings
  ASoC: fsl_esai doc: Add "fsl,vf610-esai" as compatible string
  ASoC: da732x: Remove unnecessary KERN_ERR in pr_err()
  ASoC: simple-card: Fix detect gpio documentation.
  ...

5 files changed, 141 insertions, 13 deletions

diff --git a/sound/core/misc.c b/sound/core/misc.c
index 30e027ecf4da..f2e8226c88fb 100644
--- a/sound/core/misc.c
+++ b/sound/core/misc.c
@@ -145,6 +145,8 @@ EXPORT_SYMBOL(snd_pci_quirk_lookup_id);
 const struct snd_pci_quirk *
 snd_pci_quirk_lookup(struct pci_dev *pci, const struct snd_pci_quirk *list)
 {
+	if (!pci)
+		return NULL;
 	return snd_pci_quirk_lookup_id(pci->subsystem_vendor,
 				       pci->subsystem_device,
 				       list);
diff --git a/sound/core/pcm.c b/sound/core/pcm.c
index 43932e8dce66..42ded997b223 100644
--- a/sound/core/pcm.c
+++ b/sound/core/pcm.c
@@ -215,6 +215,7 @@ static char *snd_pcm_format_names[] = {
 	FORMAT(G723_40_1B),
 	FORMAT(DSD_U8),
 	FORMAT(DSD_U16_LE),
+	FORMAT(DSD_U32_LE),
 };
 
 const char *snd_pcm_format_name(snd_pcm_format_t format)
@@ -698,6 +699,7 @@ int snd_pcm_new_stream(struct snd_pcm *pcm, int stream, int substream_count)
 		}
 		substream->group = &substream->self_group;
 		spin_lock_init(&substream->self_group.lock);
+		mutex_init(&substream->self_group.mutex);
 		INIT_LIST_HEAD(&substream->self_group.substreams);
 		list_add_tail(&substream->link_list, &substream->self_group.substreams);
 		atomic_set(&substream->mmap_count, 0);
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index 0032278567ad..dfc28542a007 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -1113,18 +1113,20 @@ int snd_interval_list(struct snd_interval *i, unsigned int count,
 
 EXPORT_SYMBOL(snd_interval_list);
 
-static int snd_interval_step(struct snd_interval *i, unsigned int min, unsigned int step)
+static int snd_interval_step(struct snd_interval *i, unsigned int step)
 {
 	unsigned int n;
 	int changed = 0;
-	n = (i->min - min) % step;
+	n = i->min % step;
 	if (n != 0 || i->openmin) {
 		i->min += step - n;
+		i->openmin = 0;
 		changed = 1;
 	}
-	n = (i->max - min) % step;
+	n = i->max % step;
 	if (n != 0 || i->openmax) {
 		i->max -= n;
+		i->openmax = 0;
 		changed = 1;
 	}
 	if (snd_interval_checkempty(i)) {
@@ -1427,7 +1429,7 @@ static int snd_pcm_hw_rule_step(struct snd_pcm_hw_params *params,
 				struct snd_pcm_hw_rule *rule)
 {
 	unsigned long step = (unsigned long) rule->private;
-	return snd_interval_step(hw_param_interval(params, rule->var), 0, step);
+	return snd_interval_step(hw_param_interval(params, rule->var), step);
 }
 
 /**
diff --git a/sound/core/pcm_misc.c b/sound/core/pcm_misc.c
index 2c6fd80e0bd1..ae7a0feb3b76 100644
--- a/sound/core/pcm_misc.c
+++ b/sound/core/pcm_misc.c
@@ -148,6 +148,10 @@ static struct pcm_format_data pcm_formats[(INT)SNDRV_PCM_FORMAT_LAST+1] = {
 		.width = 16, .phys = 16, .le = 1, .signd = 0,
 		.silence = { 0x69, 0x69 },
 	},
+	[SNDRV_PCM_FORMAT_DSD_U32_LE] = {
+		.width = 32, .phys = 32, .le = 1, .signd = 0,
+		.silence = { 0x69, 0x69, 0x69, 0x69 },
+	},
 	/* FIXME: the following three formats are not defined properly yet */
 	[SNDRV_PCM_FORMAT_MPEG] = {
 		.le = -1, .signd = -1,
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 8cd2f930ad0b..85fe1a216225 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -74,11 +74,68 @@ static int snd_pcm_open(struct file *file, struct snd_pcm *pcm, int stream);
  *
  */
 
-DEFINE_RWLOCK(snd_pcm_link_rwlock);
-EXPORT_SYMBOL(snd_pcm_link_rwlock);
-
+static DEFINE_RWLOCK(snd_pcm_link_rwlock);
 static DECLARE_RWSEM(snd_pcm_link_rwsem);
 
+void snd_pcm_stream_lock(struct snd_pcm_substream *substream)
+{
+	if (substream->pcm->nonatomic) {
+		down_read(&snd_pcm_link_rwsem);
+		mutex_lock(&substream->self_group.mutex);
+	} else {
+		read_lock(&snd_pcm_link_rwlock);
+		spin_lock(&substream->self_group.lock);
+	}
+}
+EXPORT_SYMBOL_GPL(snd_pcm_stream_lock);
+
+void snd_pcm_stream_unlock(struct snd_pcm_substream *substream)
+{
+	if (substream->pcm->nonatomic) {
+		mutex_unlock(&substream->self_group.mutex);
+		up_read(&snd_pcm_link_rwsem);
+	} else {
+		spin_unlock(&substream->self_group.lock);
+		read_unlock(&snd_pcm_link_rwlock);
+	}
+}
+EXPORT_SYMBOL_GPL(snd_pcm_stream_unlock);
+
+void snd_pcm_stream_lock_irq(struct snd_pcm_substream *substream)
+{
+	if (!substream->pcm->nonatomic)
+		local_irq_disable();
+	snd_pcm_stream_lock(substream);
+}
+EXPORT_SYMBOL_GPL(snd_pcm_stream_lock_irq);
+
+void snd_pcm_stream_unlock_irq(struct snd_pcm_substream *substream)
+{
+	snd_pcm_stream_unlock(substream);
+	if (!substream->pcm->nonatomic)
+		local_irq_enable();
+}
+EXPORT_SYMBOL_GPL(snd_pcm_stream_unlock_irq);
+
+unsigned long _snd_pcm_stream_lock_irqsave(struct snd_pcm_substream *substream)
+{
+	unsigned long flags = 0;
+	if (!substream->pcm->nonatomic)
+		local_irq_save(flags);
+	snd_pcm_stream_lock(substream);
+	return flags;
+}
+EXPORT_SYMBOL_GPL(_snd_pcm_stream_lock_irqsave);
+
+void snd_pcm_stream_unlock_irqrestore(struct snd_pcm_substream *substream,
+				      unsigned long flags)
+{
+	snd_pcm_stream_unlock(substream);
+	if (!substream->pcm->nonatomic)
+		local_irq_restore(flags);
+}
+EXPORT_SYMBOL_GPL(snd_pcm_stream_unlock_irqrestore);
+
 static inline mm_segment_t snd_enter_user(void)
 {
 	mm_segment_t fs = get_fs();
@@ -727,9 +784,14 @@ static int snd_pcm_action_group(struct action_ops *ops,
 	int res = 0;
 
 	snd_pcm_group_for_each_entry(s, substream) {
-		if (do_lock && s != substream)
-			spin_lock_nested(&s->self_group.lock,
-					 SINGLE_DEPTH_NESTING);
+		if (do_lock && s != substream) {
+			if (s->pcm->nonatomic)
+				mutex_lock_nested(&s->self_group.mutex,
+						  SINGLE_DEPTH_NESTING);
+			else
+				spin_lock_nested(&s->self_group.lock,
+						 SINGLE_DEPTH_NESTING);
+		}
 		res = ops->pre_action(s, state);
 		if (res < 0)
 			goto _unlock;
@@ -755,8 +817,12 @@ static int snd_pcm_action_group(struct action_ops *ops,
 	if (do_lock) {
 		/* unlock streams */
 		snd_pcm_group_for_each_entry(s1, substream) {
-			if (s1 != substream)
-				spin_unlock(&s1->self_group.lock);
+			if (s1 != substream) {
+				if (s->pcm->nonatomic)
+					mutex_unlock(&s1->self_group.mutex);
+				else
+					spin_unlock(&s1->self_group.lock);
+			}
 			if (s1 == s)	/* end */
 				break;
 		}
@@ -784,6 +850,27 @@ static int snd_pcm_action_single(struct action_ops *ops,
 	return res;
 }
 
+/* call in mutex-protected context */
+static int snd_pcm_action_mutex(struct action_ops *ops,
+				struct snd_pcm_substream *substream,
+				int state)
+{
+	int res;
+
+	if (snd_pcm_stream_linked(substream)) {
+		if (!mutex_trylock(&substream->group->mutex)) {
+			mutex_unlock(&substream->self_group.mutex);
+			mutex_lock(&substream->group->mutex);
+			mutex_lock(&substream->self_group.mutex);
+		}
+		res = snd_pcm_action_group(ops, substream, state, 1);
+		mutex_unlock(&substream->group->mutex);
+	} else {
+		res = snd_pcm_action_single(ops, substream, state);
+	}
+	return res;
+}
+
 /*
  *  Note: call with stream lock
  */
@@ -793,6 +880,9 @@ static int snd_pcm_action(struct action_ops *ops,
 {
 	int res;
 
+	if (substream->pcm->nonatomic)
+		return snd_pcm_action_mutex(ops, substream, state);
+
 	if (snd_pcm_stream_linked(substream)) {
 		if (!spin_trylock(&substream->group->lock)) {
 			spin_unlock(&substream->self_group.lock);
@@ -807,6 +897,29 @@ static int snd_pcm_action(struct action_ops *ops,
 	return res;
 }
 
+static int snd_pcm_action_lock_mutex(struct action_ops *ops,
+				     struct snd_pcm_substream *substream,
+				     int state)
+{
+	int res;
+
+	down_read(&snd_pcm_link_rwsem);
+	if (snd_pcm_stream_linked(substream)) {
+		mutex_lock(&substream->group->mutex);
+		mutex_lock_nested(&substream->self_group.mutex,
+				  SINGLE_DEPTH_NESTING);
+		res = snd_pcm_action_group(ops, substream, state, 1);
+		mutex_unlock(&substream->self_group.mutex);
+		mutex_unlock(&substream->group->mutex);
+	} else {
+		mutex_lock(&substream->self_group.mutex);
+		res = snd_pcm_action_single(ops, substream, state);
+		mutex_unlock(&substream->self_group.mutex);
+	}
+	up_read(&snd_pcm_link_rwsem);
+	return res;
+}
+
 /*
  *  Note: don't use any locks before
  */
@@ -816,6 +929,9 @@ static int snd_pcm_action_lock_irq(struct action_ops *ops,
 {
 	int res;
 
+	if (substream->pcm->nonatomic)
+		return snd_pcm_action_lock_mutex(ops, substream, state);
+
 	read_lock_irq(&snd_pcm_link_rwlock);
 	if (snd_pcm_stream_linked(substream)) {
 		spin_lock(&substream->group->lock);
@@ -1634,7 +1750,8 @@ static int snd_pcm_link(struct snd_pcm_substream *substream, int fd)
 	down_write(&snd_pcm_link_rwsem);
 	write_lock_irq(&snd_pcm_link_rwlock);
 	if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN ||
-	    substream->runtime->status->state != substream1->runtime->status->state) {
+	    substream->runtime->status->state != substream1->runtime->status->state ||
+	    substream->pcm->nonatomic != substream1->pcm->nonatomic) {
 		res = -EBADFD;
 		goto _end;
 	}
@@ -1646,6 +1763,7 @@ static int snd_pcm_link(struct snd_pcm_substream *substream, int fd)
 		substream->group = group;
 		group = NULL;
 		spin_lock_init(&substream->group->lock);
+		mutex_init(&substream->group->mutex);
 		INIT_LIST_HEAD(&substream->group->substreams);
 		list_add_tail(&substream->link_list, &substream->group->substreams);
 		substream->group->count = 1;