Merge tag 'sound-fix-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A collection of pending small fixes:

  ALSA core:
   - PCM memory leak fix

  ASoC:
   - Lots of SOF and Intel driver fixes
   - Addition of COMMON_CLK for wcd934x
   - Regression fixes for AMD and Tegra platforms

  HD-audio:
   - DP-MST HDMI regression fix, Tegra workarounds, HP quirk fix

  Others:
   - A few fixes relevant with the recent uapi-updates
   - Sparse warnings and endianness fixes"

* tag 'sound-fix-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (35 commits)
  ALSA: hda: Clear RIRB status before reading WP
  ALSA: hda/realtek - Fixed one of HP ALC671 platform Headset Mic supported
  ASoC: wcd934x: Add missing COMMON_CLK dependency to SND_SOC_ALL_CODECS
  ALSA: hda - Fix DP-MST support for NVIDIA codecs
  ASoC: wcd934x: Add missing COMMON_CLK dependency
  MAINTAINERS: Remove the Bard Liao from the MAINTAINERS of Realtek CODECs
  ASoC: tegra: Revert 24 and 32 bit support
  ASoC: SOF: Intel: add PCI ID for JasperLake
  ALSA: hdsp: Make the firmware loading ioctl a bit more readable
  ALSA: emu10k1: Fix annotation and cast for the recent uapi header change
  ALSA: dummy: Fix PCM format loop in proc output
  ALSA: usb-audio: Annotate endianess in Scarlett gen2 quirk
  ALSA: usb-audio: Fix endianess in descriptor validation
  ALSA: hda: Add JasperLake PCI ID and codec vid
  ALSA: pcm: Fix sparse warnings wrt snd_pcm_state_t
  ALSA: pcm: Fix memory leak at closing a stream without hw_free
  ALSA: uapi: Fix sparse warning
  ASoC: rt715: Add __maybe_unused to PM callbacks
  ASoC: rt711: Add __maybe_unused to PM callbacks
  ASoC: rt700: Add __maybe_unused to PM callbacks
  ...

2 files changed, 140 insertions, 79 deletions

diff --git a/sound/core/pcm_compat.c b/sound/core/pcm_compat.c
index 967c689fb8da..590a46a9e78d 100644
--- a/sound/core/pcm_compat.c
+++ b/sound/core/pcm_compat.c
@@ -156,7 +156,7 @@ static int snd_pcm_channel_info_user(struct snd_pcm_substream *substream,
 #endif /* CONFIG_X86_X32 */
 
 struct compat_snd_pcm_status64 {
-	s32 state;
+	snd_pcm_state_t state;
 	u8 rsvd[4]; /* alignment */
 	s64 trigger_tstamp_sec;
 	s64 trigger_tstamp_nsec;
@@ -168,7 +168,7 @@ struct compat_snd_pcm_status64 {
 	u32 avail;
 	u32 avail_max;
 	u32 overrange;
-	s32 suspended_state;
+	snd_pcm_state_t suspended_state;
 	u32 audio_tstamp_data;
 	s64 audio_tstamp_sec;
 	s64 audio_tstamp_nsec;
@@ -376,13 +376,13 @@ static int snd_pcm_ioctl_xfern_compat(struct snd_pcm_substream *substream,
 #ifdef CONFIG_X86_X32
 /* X32 ABI has 64bit timespec and 64bit alignment */
 struct snd_pcm_mmap_status_x32 {
-	s32 state;
+	snd_pcm_state_t state;
 	s32 pad1;
 	u32 hw_ptr;
 	u32 pad2; /* alignment */
 	s64 tstamp_sec;
 	s64 tstamp_nsec;
-	s32 suspended_state;
+	snd_pcm_state_t suspended_state;
 	s32 pad3;
 	s64 audio_tstamp_sec;
 	s64 audio_tstamp_nsec;
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index bb23f5066654..336406bcb59e 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -551,7 +551,8 @@ static int period_to_usecs(struct snd_pcm_runtime *runtime)
 	return usecs;
 }
 
-static void snd_pcm_set_state(struct snd_pcm_substream *substream, int state)
+static void snd_pcm_set_state(struct snd_pcm_substream *substream,
+			      snd_pcm_state_t state)
 {
 	snd_pcm_stream_lock_irq(substream);
 	if (substream->runtime->status->state != SNDRV_PCM_STATE_DISCONNECTED)
@@ -786,10 +787,22 @@ end:
 	return err;
 }
 
+static int do_hw_free(struct snd_pcm_substream *substream)
+{
+	int result = 0;
+
+	snd_pcm_sync_stop(substream);
+	if (substream->ops->hw_free)
+		result = substream->ops->hw_free(substream);
+	if (substream->managed_buffer_alloc)
+		snd_pcm_lib_free_pages(substream);
+	return result;
+}
+
 static int snd_pcm_hw_free(struct snd_pcm_substream *substream)
 {
 	struct snd_pcm_runtime *runtime;
-	int result = 0;
+	int result;
 
 	if (PCM_RUNTIME_CHECK(substream))
 		return -ENXIO;
@@ -806,11 +819,7 @@ static int snd_pcm_hw_free(struct snd_pcm_substream *substream)
 	snd_pcm_stream_unlock_irq(substream);
 	if (atomic_read(&substream->mmap_count))
 		return -EBADFD;
-	snd_pcm_sync_stop(substream);
-	if (substream->ops->hw_free)
-		result = substream->ops->hw_free(substream);
-	if (substream->managed_buffer_alloc)
-		snd_pcm_lib_free_pages(substream);
+	result = do_hw_free(substream);
 	snd_pcm_set_state(substream, SNDRV_PCM_STATE_OPEN);
 	pm_qos_remove_request(&substream->latency_pm_qos_req);
 	return result;
@@ -1097,11 +1106,17 @@ static void snd_pcm_trigger_tstamp(struct snd_pcm_substream *substream)
 	runtime->trigger_master = NULL;
 }
 
+#define ACTION_ARG_IGNORE	(__force snd_pcm_state_t)0
+
 struct action_ops {
-	int (*pre_action)(struct snd_pcm_substream *substream, int state);
-	int (*do_action)(struct snd_pcm_substream *substream, int state);
-	void (*undo_action)(struct snd_pcm_substream *substream, int state);
-	void (*post_action)(struct snd_pcm_substream *substream, int state);
+	int (*pre_action)(struct snd_pcm_substream *substream,
+			  snd_pcm_state_t state);
+	int (*do_action)(struct snd_pcm_substream *substream,
+			 snd_pcm_state_t state);
+	void (*undo_action)(struct snd_pcm_substream *substream,
+			    snd_pcm_state_t state);
+	void (*post_action)(struct snd_pcm_substream *substream,
+			    snd_pcm_state_t state);
 };
 
 /*
@@ -1111,7 +1126,8 @@ struct action_ops {
  */
 static int snd_pcm_action_group(const struct action_ops *ops,
 				struct snd_pcm_substream *substream,
-				int state, int do_lock)
+				snd_pcm_state_t state,
+				bool do_lock)
 {
 	struct snd_pcm_substream *s = NULL;
 	struct snd_pcm_substream *s1;
@@ -1168,7 +1184,7 @@ static int snd_pcm_action_group(const struct action_ops *ops,
  */
 static int snd_pcm_action_single(const struct action_ops *ops,
 				 struct snd_pcm_substream *substream,
-				 int state)
+				 snd_pcm_state_t state)
 {
 	int res;
 	
@@ -1249,14 +1265,14 @@ snd_pcm_stream_group_ref(struct snd_pcm_substream *substream)
  */
 static int snd_pcm_action(const struct action_ops *ops,
 			  struct snd_pcm_substream *substream,
-			  int state)
+			  snd_pcm_state_t state)
 {
 	struct snd_pcm_group *group;
 	int res;
 
 	group = snd_pcm_stream_group_ref(substream);
 	if (group)
-		res = snd_pcm_action_group(ops, substream, state, 1);
+		res = snd_pcm_action_group(ops, substream, state, true);
 	else
 		res = snd_pcm_action_single(ops, substream, state);
 	snd_pcm_group_unref(group, substream);
@@ -1268,7 +1284,7 @@ static int snd_pcm_action(const struct action_ops *ops,
  */
 static int snd_pcm_action_lock_irq(const struct action_ops *ops,
 				   struct snd_pcm_substream *substream,
-				   int state)
+				   snd_pcm_state_t state)
 {
 	int res;
 
@@ -1282,14 +1298,14 @@ static int snd_pcm_action_lock_irq(const struct action_ops *ops,
  */
 static int snd_pcm_action_nonatomic(const struct action_ops *ops,
 				    struct snd_pcm_substream *substream,
-				    int state)
+				    snd_pcm_state_t state)
 {
 	int res;
 
 	/* Guarantee the group members won't change during non-atomic action */
 	down_read(&snd_pcm_link_rwsem);
 	if (snd_pcm_stream_linked(substream))
-		res = snd_pcm_action_group(ops, substream, state, 0);
+		res = snd_pcm_action_group(ops, substream, state, false);
 	else
 		res = snd_pcm_action_single(ops, substream, state);
 	up_read(&snd_pcm_link_rwsem);
@@ -1299,7 +1315,8 @@ static int snd_pcm_action_nonatomic(const struct action_ops *ops,
 /*
  * start callbacks
  */
-static int snd_pcm_pre_start(struct snd_pcm_substream *substream, int state)
+static int snd_pcm_pre_start(struct snd_pcm_substream *substream,
+			     snd_pcm_state_t state)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	if (runtime->status->state != SNDRV_PCM_STATE_PREPARED)
@@ -1312,20 +1329,23 @@ static int snd_pcm_pre_start(struct snd_pcm_substream *substream, int state)
 	return 0;
 }
 
-static int snd_pcm_do_start(struct snd_pcm_substream *substream, int state)
+static int snd_pcm_do_start(struct snd_pcm_substream *substream,
+			    snd_pcm_state_t state)
 {
 	if (substream->runtime->trigger_master != substream)
 		return 0;
 	return substream->ops->trigger(substream, SNDRV_PCM_TRIGGER_START);
 }
 
-static void snd_pcm_undo_start(struct snd_pcm_substream *substream, int state)
+static void snd_pcm_undo_start(struct snd_pcm_substream *substream,
+			       snd_pcm_state_t state)
 {
 	if (substream->runtime->trigger_master == substream)
 		substream->ops->trigger(substream, SNDRV_PCM_TRIGGER_STOP);
 }
 
-static void snd_pcm_post_start(struct snd_pcm_substream *substream, int state)
+static void snd_pcm_post_start(struct snd_pcm_substream *substream,
+			       snd_pcm_state_t state)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	snd_pcm_trigger_tstamp(substream);
@@ -1369,7 +1389,8 @@ static int snd_pcm_start_lock_irq(struct snd_pcm_substream *substream)
 /*
  * stop callbacks
  */
-static int snd_pcm_pre_stop(struct snd_pcm_substream *substream, int state)
+static int snd_pcm_pre_stop(struct snd_pcm_substream *substream,
+			    snd_pcm_state_t state)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	if (runtime->status->state == SNDRV_PCM_STATE_OPEN)
@@ -1378,7 +1399,8 @@ static int snd_pcm_pre_stop(struct snd_pcm_substream *substream, int state)
 	return 0;
 }
 
-static int snd_pcm_do_stop(struct snd_pcm_substream *substream, int state)
+static int snd_pcm_do_stop(struct snd_pcm_substream *substream,
+			   snd_pcm_state_t state)
 {
 	if (substream->runtime->trigger_master == substream &&
 	    snd_pcm_running(substream))
@@ -1386,7 +1408,8 @@ static int snd_pcm_do_stop(struct snd_pcm_substream *substream, int state)
 	return 0; /* unconditonally stop all substreams */
 }
 
-static void snd_pcm_post_stop(struct snd_pcm_substream *substream, int state)
+static void snd_pcm_post_stop(struct snd_pcm_substream *substream,
+			      snd_pcm_state_t state)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	if (runtime->status->state != state) {
@@ -1457,14 +1480,17 @@ int snd_pcm_stop_xrun(struct snd_pcm_substream *substream)
 EXPORT_SYMBOL_GPL(snd_pcm_stop_xrun);
 
 /*
- * pause callbacks
+ * pause callbacks: pass boolean (to start pause or resume) as state argument
  */
-static int snd_pcm_pre_pause(struct snd_pcm_substream *substream, int push)
+#define pause_pushed(state)	(__force bool)(state)
+
+static int snd_pcm_pre_pause(struct snd_pcm_substream *substream,
+			     snd_pcm_state_t state)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	if (!(runtime->info & SNDRV_PCM_INFO_PAUSE))
 		return -ENOSYS;
-	if (push) {
+	if (pause_pushed(state)) {
 		if (runtime->status->state != SNDRV_PCM_STATE_RUNNING)
 			return -EBADFD;
 	} else if (runtime->status->state != SNDRV_PCM_STATE_PAUSED)
@@ -1473,13 +1499,14 @@ static int snd_pcm_pre_pause(struct snd_pcm_substream *substream, int push)
 	return 0;
 }
 
-static int snd_pcm_do_pause(struct snd_pcm_substream *substream, int push)
+static int snd_pcm_do_pause(struct snd_pcm_substream *substream,
+			    snd_pcm_state_t state)
 {
 	if (substream->runtime->trigger_master != substream)
 		return 0;
 	/* some drivers might use hw_ptr to recover from the pause -
 	   update the hw_ptr now */
-	if (push)
+	if (pause_pushed(state))
 		snd_pcm_update_hw_ptr(substream);
 	/* The jiffies check in snd_pcm_update_hw_ptr*() is done by
 	 * a delta between the current jiffies, this gives a large enough
@@ -1487,23 +1514,27 @@ static int snd_pcm_do_pause(struct snd_pcm_substream *substream, int push)
 	 */
 	substream->runtime->hw_ptr_jiffies = jiffies - HZ * 1000;
 	return substream->ops->trigger(substream,
-				       push ? SNDRV_PCM_TRIGGER_PAUSE_PUSH :
-					      SNDRV_PCM_TRIGGER_PAUSE_RELEASE);
+				       pause_pushed(state) ?
+				       SNDRV_PCM_TRIGGER_PAUSE_PUSH :
+				       SNDRV_PCM_TRIGGER_PAUSE_RELEASE);
 }
 
-static void snd_pcm_undo_pause(struct snd_pcm_substream *substream, int push)
+static void snd_pcm_undo_pause(struct snd_pcm_substream *substream,
+			       snd_pcm_state_t state)
 {
 	if (substream->runtime->trigger_master == substream)
 		substream->ops->trigger(substream,
-					push ? SNDRV_PCM_TRIGGER_PAUSE_RELEASE :
+					pause_pushed(state) ?
+					SNDRV_PCM_TRIGGER_PAUSE_RELEASE :
 					SNDRV_PCM_TRIGGER_PAUSE_PUSH);
 }
 
-static void snd_pcm_post_pause(struct snd_pcm_substream *substream, int push)
+static void snd_pcm_post_pause(struct snd_pcm_substream *substream,
+			       snd_pcm_state_t state)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	snd_pcm_trigger_tstamp(substream);
-	if (push) {
+	if (pause_pushed(state)) {
 		runtime->status->state = SNDRV_PCM_STATE_PAUSED;
 		snd_pcm_timer_notify(substream, SNDRV_TIMER_EVENT_MPAUSE);
 		wake_up(&runtime->sleep);
@@ -1524,15 +1555,24 @@ static const struct action_ops snd_pcm_action_pause = {
 /*
  * Push/release the pause for all linked streams.
  */
-static int snd_pcm_pause(struct snd_pcm_substream *substream, int push)
+static int snd_pcm_pause(struct snd_pcm_substream *substream, bool push)
+{
+	return snd_pcm_action(&snd_pcm_action_pause, substream,
+			      (__force snd_pcm_state_t)push);
+}
+
+static int snd_pcm_pause_lock_irq(struct snd_pcm_substream *substream,
+				  bool push)
 {
-	return snd_pcm_action(&snd_pcm_action_pause, substream, push);
+	return snd_pcm_action_lock_irq(&snd_pcm_action_pause, substream,
+				       (__force snd_pcm_state_t)push);
 }
 
 #ifdef CONFIG_PM
-/* suspend */
+/* suspend callback: state argument ignored */
 
-static int snd_pcm_pre_suspend(struct snd_pcm_substream *substream, int state)
+static int snd_pcm_pre_suspend(struct snd_pcm_substream *substream,
+			       snd_pcm_state_t state)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	switch (runtime->status->state) {
@@ -1548,7 +1588,8 @@ static int snd_pcm_pre_suspend(struct snd_pcm_substream *substream, int state)
 	return 0;
 }
 
-static int snd_pcm_do_suspend(struct snd_pcm_substream *substream, int state)
+static int snd_pcm_do_suspend(struct snd_pcm_substream *substream,
+			      snd_pcm_state_t state)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	if (runtime->trigger_master != substream)
@@ -1559,7 +1600,8 @@ static int snd_pcm_do_suspend(struct snd_pcm_substream *substream, int state)
 	return 0; /* suspend unconditionally */
 }
 
-static void snd_pcm_post_suspend(struct snd_pcm_substream *substream, int state)
+static void snd_pcm_post_suspend(struct snd_pcm_substream *substream,
+				 snd_pcm_state_t state)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	snd_pcm_trigger_tstamp(substream);
@@ -1590,7 +1632,8 @@ static int snd_pcm_suspend(struct snd_pcm_substream *substream)
 	unsigned long flags;
 
 	snd_pcm_stream_lock_irqsave(substream, flags);
-	err = snd_pcm_action(&snd_pcm_action_suspend, substream, 0);
+	err = snd_pcm_action(&snd_pcm_action_suspend, substream,
+			     ACTION_ARG_IGNORE);
 	snd_pcm_stream_unlock_irqrestore(substream, flags);
 	return err;
 }
@@ -1634,9 +1677,10 @@ int snd_pcm_suspend_all(struct snd_pcm *pcm)
 }
 EXPORT_SYMBOL(snd_pcm_suspend_all);
 
-/* resume */
+/* resume callbacks: state argument ignored */
 
-static int snd_pcm_pre_resume(struct snd_pcm_substream *substream, int state)
+static int snd_pcm_pre_resume(struct snd_pcm_substream *substream,
+			      snd_pcm_state_t state)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	if (!(runtime->info & SNDRV_PCM_INFO_RESUME))
@@ -1645,7 +1689,8 @@ static int snd_pcm_pre_resume(struct snd_pcm_substream *substream, int state)
 	return 0;
 }
 
-static int snd_pcm_do_resume(struct snd_pcm_substream *substream, int state)
+static int snd_pcm_do_resume(struct snd_pcm_substream *substream,
+			     snd_pcm_state_t state)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	if (runtime->trigger_master != substream)
@@ -1658,14 +1703,16 @@ static int snd_pcm_do_resume(struct snd_pcm_substream *substream, int state)
 	return substream->ops->trigger(substream, SNDRV_PCM_TRIGGER_RESUME);
 }
 
-static void snd_pcm_undo_resume(struct snd_pcm_substream *substream, int state)
+static void snd_pcm_undo_resume(struct snd_pcm_substream *substream,
+				snd_pcm_state_t state)
 {
 	if (substream->runtime->trigger_master == substream &&
 	    snd_pcm_running(substream))
 		substream->ops->trigger(substream, SNDRV_PCM_TRIGGER_SUSPEND);
 }
 
-static void snd_pcm_post_resume(struct snd_pcm_substream *substream, int state)
+static void snd_pcm_post_resume(struct snd_pcm_substream *substream,
+				snd_pcm_state_t state)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	snd_pcm_trigger_tstamp(substream);
@@ -1683,7 +1730,8 @@ static const struct action_ops snd_pcm_action_resume = {
 
 static int snd_pcm_resume(struct snd_pcm_substream *substream)
 {
-	return snd_pcm_action_lock_irq(&snd_pcm_action_resume, substream, 0);
+	return snd_pcm_action_lock_irq(&snd_pcm_action_resume, substream,
+				       ACTION_ARG_IGNORE);
 }
 
 #else
@@ -1724,7 +1772,9 @@ static int snd_pcm_xrun(struct snd_pcm_substream *substream)
 /*
  * reset ioctl
  */
-static int snd_pcm_pre_reset(struct snd_pcm_substream *substream, int state)
+/* reset callbacks:  state argument ignored */
+static int snd_pcm_pre_reset(struct snd_pcm_substream *substream,
+			     snd_pcm_state_t state)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	switch (runtime->status->state) {
@@ -1738,7 +1788,8 @@ static int snd_pcm_pre_reset(struct snd_pcm_substream *substream, int state)
 	}
 }
 
-static int snd_pcm_do_reset(struct snd_pcm_substream *substream, int state)
+static int snd_pcm_do_reset(struct snd_pcm_substream *substream,
+			    snd_pcm_state_t state)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	int err = snd_pcm_ops_ioctl(substream, SNDRV_PCM_IOCTL1_RESET, NULL);
@@ -1752,7 +1803,8 @@ static int snd_pcm_do_reset(struct snd_pcm_substream *substream, int state)
 	return 0;
 }
 
-static void snd_pcm_post_reset(struct snd_pcm_substream *substream, int state)
+static void snd_pcm_post_reset(struct snd_pcm_substream *substream,
+			       snd_pcm_state_t state)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	runtime->control->appl_ptr = runtime->status->hw_ptr;
@@ -1769,17 +1821,20 @@ static const struct action_ops snd_pcm_action_reset = {
 
 static int snd_pcm_reset(struct snd_pcm_substream *substream)
 {
-	return snd_pcm_action_nonatomic(&snd_pcm_action_reset, substream, 0);
+	return snd_pcm_action_nonatomic(&snd_pcm_action_reset, substream,
+					ACTION_ARG_IGNORE);
 }
 
 /*
  * prepare ioctl
  */
-/* we use the second argument for updating f_flags */
+/* pass f_flags as state argument */
 static int snd_pcm_pre_prepare(struct snd_pcm_substream *substream,
-			       int f_flags)
+			       snd_pcm_state_t state)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
+	int f_flags = (__force int)state;
+
 	if (runtime->status->state == SNDRV_PCM_STATE_OPEN ||
 	    runtime->status->state == SNDRV_PCM_STATE_DISCONNECTED)
 		return -EBADFD;
@@ -1789,17 +1844,19 @@ static int snd_pcm_pre_prepare(struct snd_pcm_substream *substream,
 	return 0;
 }
 
-static int snd_pcm_do_prepare(struct snd_pcm_substream *substream, int state)
+static int snd_pcm_do_prepare(struct snd_pcm_substream *substream,
+			      snd_pcm_state_t state)
 {
 	int err;
 	snd_pcm_sync_stop(substream);
 	err = substream->ops->prepare(substream);
 	if (err < 0)
 		return err;
-	return snd_pcm_do_reset(substream, 0);
+	return snd_pcm_do_reset(substream, state);
 }
 
-static void snd_pcm_post_prepare(struct snd_pcm_substream *substream, int state)
+static void snd_pcm_post_prepare(struct snd_pcm_substream *substream,
+				 snd_pcm_state_t state)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	runtime->control->appl_ptr = runtime->status->hw_ptr;
@@ -1832,7 +1889,7 @@ static int snd_pcm_prepare(struct snd_pcm_substream *substream,
 	snd_pcm_stream_lock_irq(substream);
 	switch (substream->runtime->status->state) {
 	case SNDRV_PCM_STATE_PAUSED:
-		snd_pcm_pause(substream, 0);
+		snd_pcm_pause(substream, false);
 		/* fallthru */
 	case SNDRV_PCM_STATE_SUSPENDED:
 		snd_pcm_stop(substream, SNDRV_PCM_STATE_SETUP);
@@ -1841,14 +1898,17 @@ static int snd_pcm_prepare(struct snd_pcm_substream *substream,
 	snd_pcm_stream_unlock_irq(substream);
 
 	return snd_pcm_action_nonatomic(&snd_pcm_action_prepare,
-					substream, f_flags);
+					substream,
+					(__force snd_pcm_state_t)f_flags);
 }
 
 /*
  * drain ioctl
  */
 
-static int snd_pcm_pre_drain_init(struct snd_pcm_substream *substream, int state)
+/* drain init callbacks: state argument ignored */
+static int snd_pcm_pre_drain_init(struct snd_pcm_substream *substream,
+				  snd_pcm_state_t state)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	switch (runtime->status->state) {
@@ -1861,7 +1921,8 @@ static int snd_pcm_pre_drain_init(struct snd_pcm_substream *substream, int state
 	return 0;
 }
 
-static int snd_pcm_do_drain_init(struct snd_pcm_substream *substream, int state)
+static int snd_pcm_do_drain_init(struct snd_pcm_substream *substream,
+				 snd_pcm_state_t state)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
@@ -1887,7 +1948,9 @@ static int snd_pcm_do_drain_init(struct snd_pcm_substream *substream, int state)
 	} else {
 		/* stop running stream */
 		if (runtime->status->state == SNDRV_PCM_STATE_RUNNING) {
-			int new_state = snd_pcm_capture_avail(runtime) > 0 ?
+			snd_pcm_state_t new_state;
+
+			new_state = snd_pcm_capture_avail(runtime) > 0 ?
 				SNDRV_PCM_STATE_DRAINING : SNDRV_PCM_STATE_SETUP;
 			snd_pcm_do_stop(substream, new_state);
 			snd_pcm_post_stop(substream, new_state);
@@ -1903,7 +1966,8 @@ static int snd_pcm_do_drain_init(struct snd_pcm_substream *substream, int state)
 	return 0;
 }
 
-static void snd_pcm_post_drain_init(struct snd_pcm_substream *substream, int state)
+static void snd_pcm_post_drain_init(struct snd_pcm_substream *substream,
+				    snd_pcm_state_t state)
 {
 }
 
@@ -1946,10 +2010,11 @@ static int snd_pcm_drain(struct snd_pcm_substream *substream,
 	snd_pcm_stream_lock_irq(substream);
 	/* resume pause */
 	if (runtime->status->state == SNDRV_PCM_STATE_PAUSED)
-		snd_pcm_pause(substream, 0);
+		snd_pcm_pause(substream, false);
 
 	/* pre-start/stop - all running streams are changed to DRAINING state */
-	result = snd_pcm_action(&snd_pcm_action_drain_init, substream, 0);
+	result = snd_pcm_action(&snd_pcm_action_drain_init, substream,
+				ACTION_ARG_IGNORE);
 	if (result < 0)
 		goto unlock;
 	/* in non-blocking, we don't wait in ioctl but let caller poll */
@@ -2050,7 +2115,7 @@ static int snd_pcm_drop(struct snd_pcm_substream *substream)
 	snd_pcm_stream_lock_irq(substream);
 	/* resume pause */
 	if (runtime->status->state == SNDRV_PCM_STATE_PAUSED)
-		snd_pcm_pause(substream, 0);
+		snd_pcm_pause(substream, false);
 
 	snd_pcm_stop(substream, SNDRV_PCM_STATE_SETUP);
 	/* runtime->control->appl_ptr = runtime->status->hw_ptr; */
@@ -2529,9 +2594,7 @@ void snd_pcm_release_substream(struct snd_pcm_substream *substream)
 
 	snd_pcm_drop(substream);
 	if (substream->hw_opened) {
-		if (substream->ops->hw_free &&
-		    substream->runtime->status->state != SNDRV_PCM_STATE_OPEN)
-			substream->ops->hw_free(substream);
+		do_hw_free(substream);
 		substream->ops->close(substream);
 		substream->hw_opened = 0;
 	}
@@ -2894,12 +2957,12 @@ static int snd_pcm_sync_ptr(struct snd_pcm_substream *substream,
 }
 
 struct snd_pcm_mmap_status32 {
-	s32 state;
+	snd_pcm_state_t state;
 	s32 pad1;
 	u32 hw_ptr;
 	s32 tstamp_sec;
 	s32 tstamp_nsec;
-	s32 suspended_state;
+	snd_pcm_state_t suspended_state;
 	s32 audio_tstamp_sec;
 	s32 audio_tstamp_nsec;
 } __attribute__((packed));
@@ -3177,9 +3240,7 @@ static int snd_pcm_common_ioctl(struct file *file,
 	case SNDRV_PCM_IOCTL_DROP:
 		return snd_pcm_drop(substream);
 	case SNDRV_PCM_IOCTL_PAUSE:
-		return snd_pcm_action_lock_irq(&snd_pcm_action_pause,
-					       substream,
-					       (int)(unsigned long)arg);
+		return snd_pcm_pause_lock_irq(substream, (unsigned long)arg);
 	case SNDRV_PCM_IOCTL_WRITEI_FRAMES:
 	case SNDRV_PCM_IOCTL_READI_FRAMES:
 		return snd_pcm_xferi_frames_ioctl(substream, arg);