Merge tag 'sound-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "This became a large update. The changes are scattered widely, and the
  majority of them are attributed to ASoC componentization. The gitk
  output made me dizzy, but it's slightly better than London tube.

  OK, below are some highlights:

   - Continued hardening works in ALSA PCM core; most of the existing
     syzkaller reports should have been covered.

   - USB-audio got the initial USB Audio Class 3 support, as well as
     UAC2 jack detection support and more DSD-device support.

   - ASoC componentization: finally each individual driver was converted
     to components framework, which is more future-proof for further
     works. Most of conversations were systematic.

   - Lots of fixes for Intel Baytrail / Cherrytrail devices with Realtek
     codecs, typically tablets and small PCs.

   - Fixes / cleanups for Samsung Odroid systems

   - Cleanups in Freescale SSI driver

   - New ASoC drivers:
      * AKM AK4458 and AK5558 codecs
      * A few AMD based machine drivers
      * Intel Kabylake machine drivers
      * Maxim MAX9759 codec
      * Motorola CPCAP codec
      * Socionext Uniphier SoCs
      * TI PCM1789 and TDA7419 codecs

   - Retirement of Blackfin drivers along with architecture removal"

* tag 'sound-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (497 commits)
  ALSA: pcm: Fix UAF at PCM release via PCM timer access
  ALSA: usb-audio: silence a static checker warning
  ASoC: tscs42xx: Remove owner assignment from i2c_driver
  ASoC: mediatek: remove "simple-mfd" in the example
  ASoC: cpcap: replace codec to component
  ASoC: Intel: bytcr_rt5651: don't use codec anymore
  ASoC: amd: don't use codec anymore
  ALSA: usb-audio: fix memory leak on cval
  ALSA: pcm: Fix mutex unbalance in OSS emulation ioctls
  ASoC: topology: Fix kcontrol name string handling
  ALSA: aloop: Mark paused device as inactive
  ALSA: usb-audio: update clock valid control
  ALSA: usb-audio: UAC2 jack detection
  ALSA: pcm: Return -EBUSY for OSS ioctls changing busy streams
  ALSA: pcm: Avoid potential races between OSS ioctls and read/write
  ALSA: usb-audio: Integrate native DSD support for ITF-USB based DACs.
  ALSA: usb-audio: FIX native DSD support for TEAC UD-501 DAC
  ALSA: usb-audio: Add native DSD support for Luxman DA-06
  ALSA: usb-audio: fix uac control query argument
  ASoC: nau8824: recover system clock when device changes
  ...

1 files changed, 78 insertions, 39 deletions

diff --git a/sound/soc/intel/atom/sst/sst_stream.c b/sound/soc/intel/atom/sst/sst_stream.c
index 7ee6aeb7e0af5..107271f7dd634 100644
--- a/sound/soc/intel/atom/sst/sst_stream.c
+++ b/sound/soc/intel/atom/sst/sst_stream.c
@@ -35,29 +35,31 @@
 
 int sst_alloc_stream_mrfld(struct intel_sst_drv *sst_drv_ctx, void *params)
 {
-	struct snd_sst_alloc_mrfld alloc_param;
+	struct snd_pcm_params *pcm_params;
 	struct snd_sst_params *str_params;
 	struct snd_sst_tstamp fw_tstamp;
 	struct stream_info *str_info;
-	struct snd_sst_alloc_response *response;
-	unsigned int str_id, pipe_id, task_id;
-	int i, num_ch, ret = 0;
-	void *data = NULL;
+	int i, num_ch, str_id;
 
 	dev_dbg(sst_drv_ctx->dev, "Enter\n");
 
 	str_params = (struct snd_sst_params *)params;
-	memset(&alloc_param, 0, sizeof(alloc_param));
-	alloc_param.operation = str_params->ops;
-	alloc_param.codec_type = str_params->codec;
-	alloc_param.sg_count = str_params->aparams.sg_count;
-	alloc_param.ring_buf_info[0].addr =
+	str_id = str_params->stream_id;
+	str_info = get_stream_info(sst_drv_ctx, str_id);
+	if (!str_info)
+		return -EINVAL;
+
+	memset(&str_info->alloc_param, 0, sizeof(str_info->alloc_param));
+	str_info->alloc_param.operation = str_params->ops;
+	str_info->alloc_param.codec_type = str_params->codec;
+	str_info->alloc_param.sg_count = str_params->aparams.sg_count;
+	str_info->alloc_param.ring_buf_info[0].addr =
 		str_params->aparams.ring_buf_info[0].addr;
-	alloc_param.ring_buf_info[0].size =
+	str_info->alloc_param.ring_buf_info[0].size =
 		str_params->aparams.ring_buf_info[0].size;
-	alloc_param.frag_size = str_params->aparams.frag_size;
+	str_info->alloc_param.frag_size = str_params->aparams.frag_size;
 
-	memcpy(&alloc_param.codec_params, &str_params->sparams,
+	memcpy(&str_info->alloc_param.codec_params, &str_params->sparams,
 			sizeof(struct snd_sst_stream_params));
 
 	/*
@@ -67,47 +69,62 @@ int sst_alloc_stream_mrfld(struct intel_sst_drv *sst_drv_ctx, void *params)
 	 * Currently hardcoding as per FW reqm.
 	 */
 	num_ch = sst_get_num_channel(str_params);
+	pcm_params = &str_info->alloc_param.codec_params.uc.pcm_params;
 	for (i = 0; i < 8; i++) {
 		if (i < num_ch)
-			alloc_param.codec_params.uc.pcm_params.channel_map[i] = i;
+			pcm_params->channel_map[i] = i;
 		else
-			alloc_param.codec_params.uc.pcm_params.channel_map[i] = 0xFF;
+			pcm_params->channel_map[i] = 0xff;
 	}
 
-	str_id = str_params->stream_id;
-	str_info = get_stream_info(sst_drv_ctx, str_id);
-	if (str_info == NULL) {
-		dev_err(sst_drv_ctx->dev, "get stream info returned null\n");
-		return -EINVAL;
-	}
-
-	pipe_id = str_params->device_type;
-	task_id = str_params->task;
-	sst_drv_ctx->streams[str_id].pipe_id = pipe_id;
-	sst_drv_ctx->streams[str_id].task_id = task_id;
+	sst_drv_ctx->streams[str_id].status = STREAM_INIT;
+	sst_drv_ctx->streams[str_id].prev = STREAM_UN_INIT;
+	sst_drv_ctx->streams[str_id].pipe_id = str_params->device_type;
+	sst_drv_ctx->streams[str_id].task_id = str_params->task;
 	sst_drv_ctx->streams[str_id].num_ch = num_ch;
 
 	if (sst_drv_ctx->info.lpe_viewpt_rqd)
-		alloc_param.ts = sst_drv_ctx->info.mailbox_start +
+		str_info->alloc_param.ts = sst_drv_ctx->info.mailbox_start +
 			sst_drv_ctx->tstamp + (str_id * sizeof(fw_tstamp));
 	else
-		alloc_param.ts = sst_drv_ctx->mailbox_add +
+		str_info->alloc_param.ts = sst_drv_ctx->mailbox_add +
 			sst_drv_ctx->tstamp + (str_id * sizeof(fw_tstamp));
 
 	dev_dbg(sst_drv_ctx->dev, "alloc tstamp location = 0x%x\n",
-			alloc_param.ts);
+			str_info->alloc_param.ts);
 	dev_dbg(sst_drv_ctx->dev, "assigned pipe id 0x%x to task %d\n",
-			pipe_id, task_id);
+			str_info->pipe_id, str_info->task_id);
+
+	return sst_realloc_stream(sst_drv_ctx, str_id);
+}
+
+/**
+ * sst_realloc_stream - Send msg for (re-)allocating a stream using the
+ * @sst_drv_ctx  intel_sst_drv context pointer
+ * @str_id:	 stream ID
+ *
+ * Send a msg for (re-)allocating a stream using the parameters previously
+ * passed to sst_alloc_stream_mrfld() for the same stream ID.
+ * Return: 0 or negative errno value.
+ */
+int sst_realloc_stream(struct intel_sst_drv *sst_drv_ctx, int str_id)
+{
+	struct snd_sst_alloc_response *response;
+	struct stream_info *str_info;
+	void *data = NULL;
+	int ret;
 
-	/* allocate device type context */
-	sst_init_stream(&sst_drv_ctx->streams[str_id], alloc_param.codec_type,
-			str_id, alloc_param.operation, 0);
+	str_info = get_stream_info(sst_drv_ctx, str_id);
+	if (!str_info)
+		return -EINVAL;
 
 	dev_dbg(sst_drv_ctx->dev, "Alloc for str %d pipe %#x\n",
-			str_id, pipe_id);
-	ret = sst_prepare_and_post_msg(sst_drv_ctx, task_id, IPC_CMD,
-			IPC_IA_ALLOC_STREAM_MRFLD, pipe_id, sizeof(alloc_param),
-			&alloc_param, &data, true, true, false, true);
+		str_id, str_info->pipe_id);
+
+	ret = sst_prepare_and_post_msg(sst_drv_ctx, str_info->task_id, IPC_CMD,
+			IPC_IA_ALLOC_STREAM_MRFLD, str_info->pipe_id,
+			sizeof(str_info->alloc_param), &str_info->alloc_param,
+			&data, true, true, false, true);
 
 	if (ret < 0) {
 		dev_err(sst_drv_ctx->dev, "FW alloc failed ret %d\n", ret);
@@ -253,7 +270,7 @@ int sst_pause_stream(struct intel_sst_drv *sst_drv_ctx, int str_id)
 		if (retval == 0) {
 			str_info->prev = str_info->status;
 			str_info->status = STREAM_PAUSED;
-		} else if (retval == SST_ERR_INVALID_STREAM_ID) {
+		} else if (retval == -SST_ERR_INVALID_STREAM_ID) {
 			retval = -EINVAL;
 			mutex_lock(&sst_drv_ctx->sst_lock);
 			sst_clean_stream(str_info);
@@ -285,7 +302,29 @@ int sst_resume_stream(struct intel_sst_drv *sst_drv_ctx, int str_id)
 		return -EINVAL;
 	if (str_info->status == STREAM_RUNNING)
 		return 0;
-	if (str_info->status == STREAM_PAUSED) {
+
+	if (str_info->resume_status == STREAM_PAUSED &&
+	    str_info->resume_prev == STREAM_RUNNING) {
+		/*
+		 * Stream was running before suspend and re-created on resume,
+		 * start it to get back to running state.
+		 */
+		dev_dbg(sst_drv_ctx->dev, "restart recreated stream after resume\n");
+		str_info->status = STREAM_RUNNING;
+		str_info->prev = STREAM_PAUSED;
+		retval = sst_start_stream(sst_drv_ctx, str_id);
+		str_info->resume_status = STREAM_UN_INIT;
+	} else if (str_info->resume_status == STREAM_PAUSED &&
+		   str_info->resume_prev == STREAM_INIT) {
+		/*
+		 * Stream was idle before suspend and re-created on resume,
+		 * keep it as is.
+		 */
+		dev_dbg(sst_drv_ctx->dev, "leaving recreated stream idle after resume\n");
+		str_info->status = STREAM_INIT;
+		str_info->prev = STREAM_PAUSED;
+		str_info->resume_status = STREAM_UN_INIT;
+	} else if (str_info->status == STREAM_PAUSED) {
 		retval = sst_prepare_and_post_msg(sst_drv_ctx, str_info->task_id,
 				IPC_CMD, IPC_IA_RESUME_STREAM_MRFLD,
 				str_info->pipe_id, 0, NULL, NULL,