Merge tag 'sound-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "As shown in diffstat and logs, it was again a busy development cycle
  at this time, too. The most significant changes are still on-going
  refactoring / modernization works for ASoC core and drivers, but there
  are lots of other changes as well. Here we go, some highlights below:

  ASoC:

   - Quite a lot of cleanup / refactoring of ASoC core and APIs; most of
     them are systematic, but also including cleanups and modernization

   - A bulk of updates for some ASoC platforms, Freescale, sunxi and
     Intel SST/SOF

   - Initial support for Sound Open Firmware on i.MX8

   - Removal of deprecated w90x900 and nuc900 drivers

   - New support for Cirrus Logic CS47L15 and CS47L92, Freescale i.MX
     7ULP and 8MQ, Meson G12A and NXP UDA1334

  USB-audio:

   - More validations of descriptor units for hardening against bugs
     reported by fuzzers

   - PCM device assignment workaround for a past call-order change

   - Scarlett Gen2 mixer interface, a few more more quirks

  HD-audio:

   - Support for audio component with AMD/ATI and Nvidia HDMI codecs

   - Clean up HD-audio core and remove indirect access ops for Intel SOF

   - DMIC detection at probe; it would make systems automatically
     falling back to SST/SOF driver on devices that need DMIC handling.
     Needs a new Kconfig to set, and beware that it's still new and a
     bit experimental

  FireWire:

   - Lots of code refactoring and cleanups"

* tag 'sound-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (521 commits)
  ASoC: sdm845: remove unneeded semicolon
  ASoC: fsl_sai: Implement set_bclk_ratio
  ASoC: dmaengine: Replace strncpy() with strscpy_pad() for pcm->name
  ASoC: wcd9335: remove redundant use of ret variable
  ALSA: firewire-tascam: check intermediate state of clock status and retry
  ALSA: firewire-tascam: handle error code when getting current source of clock
  ASoC: hdmi-codec: Add an op to set callback function for plug event
  ASoC: rt5677: keep analog power register at SND_SOC_BIAS_OFF
  ASoC: rt5677: Remove magic number register writes
  ASoC: soc-core: self contained soc_unbind_aux_dev()
  ASoC: soc-core: add soc_unbind_aux_dev()
  ASoC: soc-core: self contained soc_bind_aux_dev()
  ASoC: soc-core: move soc_probe_link_dais() next to soc_remove_link_dais()
  ASoC: soc-core: self contained soc_probe_link_dais()
  ASoC: soc-core: add new soc_link_init()
  ASoC: soc-core: move soc_probe_dai() next to soc_remove_dai()
  ASoC: soc-core: self contained soc_remove_link_dais()
  ASoC: soc-core: self contained soc_remove_link_components()
  ASoC: soc-core: self contained soc_probe_link_components()
  ASoC: rt1308: make array pd static const, makes object smaller
  ...

3 files changed, 116 insertions, 87 deletions

diff --git a/sound/firewire/fireface/amdtp-ff.c b/sound/firewire/fireface/amdtp-ff.c
index 2938489740b4..119c0076b17a 100644
--- a/sound/firewire/fireface/amdtp-ff.c
+++ b/sound/firewire/fireface/amdtp-ff.c
@@ -27,19 +27,24 @@ int amdtp_ff_set_parameters(struct amdtp_stream *s, unsigned int rate,
 	return amdtp_stream_set_parameters(s, rate, data_channels);
 }
 
-static void write_pcm_s32(struct amdtp_stream *s,
-			  struct snd_pcm_substream *pcm,
-			  __le32 *buffer, unsigned int frames)
+static void write_pcm_s32(struct amdtp_stream *s, struct snd_pcm_substream *pcm,
+			  __le32 *buffer, unsigned int frames,
+			  unsigned int pcm_frames)
 {
 	struct amdtp_ff *p = s->protocol;
+	unsigned int channels = p->pcm_channels;
 	struct snd_pcm_runtime *runtime = pcm->runtime;
-	unsigned int channels, remaining_frames, i, c;
+	unsigned int pcm_buffer_pointer;
+	int remaining_frames;
 	const u32 *src;
+	int i, c;
+
+	pcm_buffer_pointer = s->pcm_buffer_pointer + pcm_frames;
+	pcm_buffer_pointer %= runtime->buffer_size;
 
-	channels = p->pcm_channels;
 	src = (void *)runtime->dma_area +
-			frames_to_bytes(runtime, s->pcm_buffer_pointer);
-	remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer;
+				frames_to_bytes(runtime, pcm_buffer_pointer);
+	remaining_frames = runtime->buffer_size - pcm_buffer_pointer;
 
 	for (i = 0; i < frames; ++i) {
 		for (c = 0; c < channels; ++c) {
@@ -52,19 +57,24 @@ static void write_pcm_s32(struct amdtp_stream *s,
 	}
 }
 
-static void read_pcm_s32(struct amdtp_stream *s,
-			 struct snd_pcm_substream *pcm,
-			 __le32 *buffer, unsigned int frames)
+static void read_pcm_s32(struct amdtp_stream *s, struct snd_pcm_substream *pcm,
+			 __le32 *buffer, unsigned int frames,
+			 unsigned int pcm_frames)
 {
 	struct amdtp_ff *p = s->protocol;
+	unsigned int channels = p->pcm_channels;
 	struct snd_pcm_runtime *runtime = pcm->runtime;
-	unsigned int channels, remaining_frames, i, c;
+	unsigned int pcm_buffer_pointer;
+	int remaining_frames;
 	u32 *dst;
+	int i, c;
+
+	pcm_buffer_pointer = s->pcm_buffer_pointer + pcm_frames;
+	pcm_buffer_pointer %= runtime->buffer_size;
 
-	channels = p->pcm_channels;
 	dst  = (void *)runtime->dma_area +
-			frames_to_bytes(runtime, s->pcm_buffer_pointer);
-	remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer;
+				frames_to_bytes(runtime, pcm_buffer_pointer);
+	remaining_frames = runtime->buffer_size - pcm_buffer_pointer;
 
 	for (i = 0; i < frames; ++i) {
 		for (c = 0; c < channels; ++c) {
@@ -102,38 +112,47 @@ int amdtp_ff_add_pcm_hw_constraints(struct amdtp_stream *s,
 	return amdtp_stream_add_pcm_hw_constraints(s, runtime);
 }
 
-static unsigned int process_rx_data_blocks(struct amdtp_stream *s,
-					   __be32 *buffer,
-					   unsigned int data_blocks,
-					   unsigned int *syt)
+static unsigned int process_it_ctx_payloads(struct amdtp_stream *s,
+					   const struct pkt_desc *descs,
+					   unsigned int packets,
+					   struct snd_pcm_substream *pcm)
 {
-	struct snd_pcm_substream *pcm = READ_ONCE(s->pcm);
-	unsigned int pcm_frames;
-
-	if (pcm) {
-		write_pcm_s32(s, pcm, (__le32 *)buffer, data_blocks);
-		pcm_frames = data_blocks;
-	} else {
-		write_pcm_silence(s, (__le32 *)buffer, data_blocks);
-		pcm_frames = 0;
+	unsigned int pcm_frames = 0;
+	int i;
+
+	for (i = 0; i < packets; ++i) {
+		const struct pkt_desc *desc = descs + i;
+		__le32 *buf = (__le32 *)desc->ctx_payload;
+		unsigned int data_blocks = desc->data_blocks;
+
+		if (pcm) {
+			write_pcm_s32(s, pcm, buf, data_blocks, pcm_frames);
+			pcm_frames += data_blocks;
+		} else {
+			write_pcm_silence(s, buf, data_blocks);
+		}
 	}
 
 	return pcm_frames;
 }
 
-static unsigned int process_tx_data_blocks(struct amdtp_stream *s,
-					   __be32 *buffer,
-					   unsigned int data_blocks,
-					   unsigned int *syt)
+static unsigned int process_ir_ctx_payloads(struct amdtp_stream *s,
+					    const struct pkt_desc *descs,
+					    unsigned int packets,
+					    struct snd_pcm_substream *pcm)
 {
-	struct snd_pcm_substream *pcm = READ_ONCE(s->pcm);
-	unsigned int pcm_frames;
-
-	if (pcm) {
-		read_pcm_s32(s, pcm, (__le32 *)buffer, data_blocks);
-		pcm_frames = data_blocks;
-	} else {
-		pcm_frames = 0;
+	unsigned int pcm_frames = 0;
+	int i;
+
+	for (i = 0; i < packets; ++i) {
+		const struct pkt_desc *desc = descs + i;
+		__le32 *buf = (__le32 *)desc->ctx_payload;
+		unsigned int data_blocks = desc->data_blocks;
+
+		if (pcm) {
+			read_pcm_s32(s, pcm, buf, data_blocks, pcm_frames);
+			pcm_frames += data_blocks;
+		}
 	}
 
 	return pcm_frames;
@@ -142,13 +161,13 @@ static unsigned int process_tx_data_blocks(struct amdtp_stream *s,
 int amdtp_ff_init(struct amdtp_stream *s, struct fw_unit *unit,
 		  enum amdtp_stream_direction dir)
 {
-	amdtp_stream_process_data_blocks_t process_data_blocks;
+	amdtp_stream_process_ctx_payloads_t process_ctx_payloads;
 
 	if (dir == AMDTP_IN_STREAM)
-		process_data_blocks = process_tx_data_blocks;
+		process_ctx_payloads = process_ir_ctx_payloads;
 	else
-		process_data_blocks = process_rx_data_blocks;
+		process_ctx_payloads = process_it_ctx_payloads;
 
 	return amdtp_stream_init(s, unit, dir, CIP_NO_HEADER, 0,
-				 process_data_blocks, sizeof(struct amdtp_ff));
+				 process_ctx_payloads, sizeof(struct amdtp_ff));
 }
diff --git a/sound/firewire/fireface/ff-stream.c b/sound/firewire/fireface/ff-stream.c
index 4208b8004d1a..e8e6f9fd6433 100644
--- a/sound/firewire/fireface/ff-stream.c
+++ b/sound/firewire/fireface/ff-stream.c
@@ -32,61 +32,65 @@ int snd_ff_stream_get_multiplier_mode(enum cip_sfc sfc,
 
 static inline void finish_session(struct snd_ff *ff)
 {
-	amdtp_stream_stop(&ff->tx_stream);
-	amdtp_stream_stop(&ff->rx_stream);
-
 	ff->spec->protocol->finish_session(ff);
 	ff->spec->protocol->switch_fetching_mode(ff, false);
 }
 
-static int init_stream(struct snd_ff *ff, enum amdtp_stream_direction dir)
+static int init_stream(struct snd_ff *ff, struct amdtp_stream *s)
 {
-	int err;
 	struct fw_iso_resources *resources;
-	struct amdtp_stream *stream;
+	enum amdtp_stream_direction dir;
+	int err;
 
-	if (dir == AMDTP_IN_STREAM) {
+	if (s == &ff->tx_stream) {
 		resources = &ff->tx_resources;
-		stream = &ff->tx_stream;
+		dir = AMDTP_IN_STREAM;
 	} else {
 		resources = &ff->rx_resources;
-		stream = &ff->rx_stream;
+		dir = AMDTP_OUT_STREAM;
 	}
 
 	err = fw_iso_resources_init(resources, ff->unit);
 	if (err < 0)
 		return err;
 
-	err = amdtp_ff_init(stream, ff->unit, dir);
+	err = amdtp_ff_init(s, ff->unit, dir);
 	if (err < 0)
 		fw_iso_resources_destroy(resources);
 
 	return err;
 }
 
-static void destroy_stream(struct snd_ff *ff, enum amdtp_stream_direction dir)
+static void destroy_stream(struct snd_ff *ff, struct amdtp_stream *s)
 {
-	if (dir == AMDTP_IN_STREAM) {
-		amdtp_stream_destroy(&ff->tx_stream);
+	amdtp_stream_destroy(s);
+
+	if (s == &ff->tx_stream)
 		fw_iso_resources_destroy(&ff->tx_resources);
-	} else {
-		amdtp_stream_destroy(&ff->rx_stream);
+	else
 		fw_iso_resources_destroy(&ff->rx_resources);
-	}
 }
 
 int snd_ff_stream_init_duplex(struct snd_ff *ff)
 {
 	int err;
 
-	err = init_stream(ff, AMDTP_OUT_STREAM);
+	err = init_stream(ff, &ff->rx_stream);
 	if (err < 0)
-		goto end;
+		return err;
+
+	err = init_stream(ff, &ff->tx_stream);
+	if (err < 0) {
+		destroy_stream(ff, &ff->rx_stream);
+		return err;
+	}
+
+	err = amdtp_domain_init(&ff->domain);
+	if (err < 0) {
+		destroy_stream(ff, &ff->rx_stream);
+		destroy_stream(ff, &ff->tx_stream);
+	}
 
-	err = init_stream(ff, AMDTP_IN_STREAM);
-	if (err < 0)
-		destroy_stream(ff, AMDTP_OUT_STREAM);
-end:
 	return err;
 }
 
@@ -96,8 +100,10 @@ end:
  */
 void snd_ff_stream_destroy_duplex(struct snd_ff *ff)
 {
-	destroy_stream(ff, AMDTP_IN_STREAM);
-	destroy_stream(ff, AMDTP_OUT_STREAM);
+	amdtp_domain_destroy(&ff->domain);
+
+	destroy_stream(ff, &ff->rx_stream);
+	destroy_stream(ff, &ff->tx_stream);
 }
 
 int snd_ff_stream_reserve_duplex(struct snd_ff *ff, unsigned int rate)
@@ -114,6 +120,7 @@ int snd_ff_stream_reserve_duplex(struct snd_ff *ff, unsigned int rate)
 		enum snd_ff_stream_mode mode;
 		int i;
 
+		amdtp_domain_stop(&ff->domain);
 		finish_session(ff);
 
 		fw_iso_resources_free(&ff->tx_resources);
@@ -156,51 +163,52 @@ int snd_ff_stream_start_duplex(struct snd_ff *ff, unsigned int rate)
 		return 0;
 
 	if (amdtp_streaming_error(&ff->tx_stream) ||
-	    amdtp_streaming_error(&ff->rx_stream))
+	    amdtp_streaming_error(&ff->rx_stream)) {
+		amdtp_domain_stop(&ff->domain);
 		finish_session(ff);
+	}
 
 	/*
 	 * Regardless of current source of clock signal, drivers transfer some
 	 * packets. Then, the device transfers packets.
 	 */
 	if (!amdtp_stream_running(&ff->rx_stream)) {
+		int spd = fw_parent_device(ff->unit)->max_speed;
+
 		err = ff->spec->protocol->begin_session(ff, rate);
 		if (err < 0)
 			goto error;
 
-		err = amdtp_stream_start(&ff->rx_stream,
-					 ff->rx_resources.channel,
-					 fw_parent_device(ff->unit)->max_speed);
+		err = amdtp_domain_add_stream(&ff->domain, &ff->rx_stream,
+					      ff->rx_resources.channel, spd);
 		if (err < 0)
 			goto error;
 
-		if (!amdtp_stream_wait_callback(&ff->rx_stream,
-						CALLBACK_TIMEOUT_MS)) {
-			err = -ETIMEDOUT;
-			goto error;
-		}
-
-		err = ff->spec->protocol->switch_fetching_mode(ff, true);
+		err = amdtp_domain_add_stream(&ff->domain, &ff->tx_stream,
+					      ff->tx_resources.channel, spd);
 		if (err < 0)
 			goto error;
-	}
 
-	if (!amdtp_stream_running(&ff->tx_stream)) {
-		err = amdtp_stream_start(&ff->tx_stream,
-					 ff->tx_resources.channel,
-					 fw_parent_device(ff->unit)->max_speed);
+		err = amdtp_domain_start(&ff->domain);
 		if (err < 0)
 			goto error;
 
-		if (!amdtp_stream_wait_callback(&ff->tx_stream,
+		if (!amdtp_stream_wait_callback(&ff->rx_stream,
+						CALLBACK_TIMEOUT_MS) ||
+		    !amdtp_stream_wait_callback(&ff->tx_stream,
 						CALLBACK_TIMEOUT_MS)) {
 			err = -ETIMEDOUT;
 			goto error;
 		}
+
+		err = ff->spec->protocol->switch_fetching_mode(ff, true);
+		if (err < 0)
+			goto error;
 	}
 
 	return 0;
 error:
+	amdtp_domain_stop(&ff->domain);
 	finish_session(ff);
 
 	return err;
@@ -209,6 +217,7 @@ error:
 void snd_ff_stream_stop_duplex(struct snd_ff *ff)
 {
 	if (ff->substreams_counter == 0) {
+		amdtp_domain_stop(&ff->domain);
 		finish_session(ff);
 
 		fw_iso_resources_free(&ff->tx_resources);
@@ -218,12 +227,11 @@ void snd_ff_stream_stop_duplex(struct snd_ff *ff)
 
 void snd_ff_stream_update_duplex(struct snd_ff *ff)
 {
+	amdtp_domain_stop(&ff->domain);
+
 	// The device discontinue to transfer packets.
 	amdtp_stream_pcm_abort(&ff->tx_stream);
-	amdtp_stream_stop(&ff->tx_stream);
-
 	amdtp_stream_pcm_abort(&ff->rx_stream);
-	amdtp_stream_stop(&ff->rx_stream);
 }
 
 void snd_ff_stream_lock_changed(struct snd_ff *ff)
diff --git a/sound/firewire/fireface/ff.h b/sound/firewire/fireface/ff.h
index 36dd0c75b9f7..b4c22ca6079e 100644
--- a/sound/firewire/fireface/ff.h
+++ b/sound/firewire/fireface/ff.h
@@ -91,6 +91,8 @@ struct snd_ff {
 	int dev_lock_count;
 	bool dev_lock_changed;
 	wait_queue_head_t hwdep_wait;
+
+	struct amdtp_domain domain;
 };
 
 enum snd_ff_clock_src {