Merge branch 'topic/pcm-device-suspend' into for-next

Pull the PCM suspend improvement / cleanup.
This moves the most of snd_pcm_suspend*() calls into PCM's own device
PM ops.  There should be no change from the functionality POV.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

Documentation/sound/kernel-api/writing-an-alsa-driver.rst

@@ -3924,15 +3924,12 @@ The scheme of the real suspend job is as follows.
 2. Call :c:func:`snd_power_change_state()` with
    ``SNDRV_CTL_POWER_D3hot`` to change the power status.
 
-3. Call :c:func:`snd_pcm_suspend_all()` to suspend the running
+3. If AC97 codecs are used, call :c:func:`snd_ac97_suspend()` for
-   PCM streams.
-
-4. If AC97 codecs are used, call :c:func:`snd_ac97_suspend()` for
    each codec.
 
-5. Save the register values if necessary.
+4. Save the register values if necessary.
 
-6. Stop the hardware if necessary.
+5. Stop the hardware if necessary.
 
 A typical code would be like:
 
@@ -3946,12 +3943,10 @@ A typical code would be like:
           /* (2) */
           snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
           /* (3) */
-          snd_pcm_suspend_all(chip->pcm);
-          /* (4) */
           snd_ac97_suspend(chip->ac97);
-          /* (5) */
+          /* (4) */
           snd_mychip_save_registers(chip);
-          /* (6) */
+          /* (5) */
           snd_mychip_stop_hardware(chip);
           return 0;
   }
@@ -3994,13 +3989,9 @@ A typical code would be like:
           return 0;
   }
 
-As shown in the above, it's better to save registers after suspending
+Note that, at the time this callback gets called, the PCM stream has
-the PCM operations via :c:func:`snd_pcm_suspend_all()` or
+been already suspended via its own PM ops calling
-:c:func:`snd_pcm_suspend()`. It means that the PCM streams are
+:c:func:`snd_pcm_suspend_all()` internally.
-already stopped when the register snapshot is taken. But, remember that
-you don't have to restart the PCM stream in the resume callback. It'll
-be restarted via trigger call with ``SNDRV_PCM_TRIGGER_RESUME`` when
-necessary.
 
 OK, we have all callbacks now. Let's set them up. In the initialization
 of the card, make sure that you can get the chip data from the card

drivers/gpu/drm/bridge/synopsys/dw-hdmi-ahb-audio.c

@@ -614,7 +614,6 @@ static int snd_dw_hdmi_suspend(struct device *dev)
 	struct snd_dw_hdmi *dw = dev_get_drvdata(dev);
 
 	snd_power_change_state(dw->card, SNDRV_CTL_POWER_D3cold);
-	snd_pcm_suspend_all(dw->pcm);
 
 	return 0;
 }

include/sound/pcm.h

@@ -538,6 +538,7 @@ struct snd_pcm {
 	void (*private_free) (struct snd_pcm *pcm);
 	bool internal; /* pcm is for internal use only */
 	bool nonatomic; /* whole PCM operations are in non-atomic context */
+	bool no_device_suspend; /* don't invoke device PM suspend */
 #if IS_ENABLED(CONFIG_SND_PCM_OSS)
 	struct snd_pcm_oss oss;
 #endif
@@ -581,13 +582,8 @@ int snd_pcm_stop(struct snd_pcm_substream *substream, snd_pcm_state_t status);
 int snd_pcm_drain_done(struct snd_pcm_substream *substream);
 int snd_pcm_stop_xrun(struct snd_pcm_substream *substream);
 #ifdef CONFIG_PM
-int snd_pcm_suspend(struct snd_pcm_substream *substream);
 int snd_pcm_suspend_all(struct snd_pcm *pcm);
 #else
-static inline int snd_pcm_suspend(struct snd_pcm_substream *substream)
-{
-	return 0;
-}
 static inline int snd_pcm_suspend_all(struct snd_pcm *pcm)
 {
 	return 0;

sound/aoa/soundbus/i2sbus/core.c

@@ -380,10 +380,6 @@ static int i2sbus_suspend(struct macio_dev* dev, pm_message_t state)
 	int err, ret = 0;
 
 	list_for_each_entry(i2sdev, &control->list, item) {
-		/* Notify Alsa */
-		/* Suspend PCM streams */
-		snd_pcm_suspend_all(i2sdev->sound.pcm);
-
 		/* Notify codecs */
 		list_for_each_entry(cii, &i2sdev->sound.codec_list, list) {
 			err = 0;

sound/arm/aaci.c

@@ -757,7 +757,6 @@ static int aaci_do_suspend(struct snd_card *card)
 {
 	struct aaci *aaci = card->private_data;
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3cold);
-	snd_pcm_suspend_all(aaci->pcm);
 	return 0;
 }
 

sound/arm/pxa2xx-ac97.c

@@ -124,7 +124,6 @@ static int pxa2xx_ac97_do_suspend(struct snd_card *card)
 	pxa2xx_audio_ops_t *platform_ops = card->dev->platform_data;
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3cold);
-	snd_pcm_suspend_all(pxa2xx_ac97_pcm);
 	snd_ac97_suspend(pxa2xx_ac97_ac97);
 	if (platform_ops && platform_ops->suspend)
 		platform_ops->suspend(platform_ops->priv);

sound/core/pcm.c

@@ -683,6 +683,31 @@ static inline int snd_pcm_substream_proc_done(struct snd_pcm_substream *substrea
 
 static const struct attribute_group *pcm_dev_attr_groups[];
 
+/*
+ * PM callbacks: we need to deal only with suspend here, as the resume is
+ * triggered either from user-space or the driver's resume callback
+ */
+#ifdef CONFIG_PM_SLEEP
+static int do_pcm_suspend(struct device *dev)
+{
+	struct snd_pcm_str *pstr = container_of(dev, struct snd_pcm_str, dev);
+
+	if (!pstr->pcm->no_device_suspend)
+		snd_pcm_suspend_all(pstr->pcm);
+	return 0;
+}
+#endif
+
+static const struct dev_pm_ops pcm_dev_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(do_pcm_suspend, NULL)
+};
+
+/* device type for PCM -- basically only for passing PM callbacks */
+static const struct device_type pcm_dev_type = {
+	.name = "pcm",
+	.pm = &pcm_dev_pm_ops,
+};
+
 /**
  * snd_pcm_new_stream - create a new PCM stream
  * @pcm: the pcm instance
@@ -713,6 +738,7 @@ int snd_pcm_new_stream(struct snd_pcm *pcm, int stream, int substream_count)
 
 	snd_device_initialize(&pstr->dev, pcm->card);
 	pstr->dev.groups = pcm_dev_attr_groups;
+	pstr->dev.type = &pcm_dev_type;
 	dev_set_name(&pstr->dev, "pcmC%iD%i%c", pcm->card->number, pcm->device,
 		     stream == SNDRV_PCM_STREAM_PLAYBACK ? 'p' : 'c');
 

sound/core/pcm_native.c

@@ -1460,29 +1460,24 @@ static const struct action_ops snd_pcm_action_suspend = {
 	.post_action = snd_pcm_post_suspend
 };
 
-/**
+/*
  * snd_pcm_suspend - trigger SUSPEND to all linked streams
  * @substream: the PCM substream
  *
  * After this call, all streams are changed to SUSPENDED state.
  *
- * Return: Zero if successful (or @substream is %NULL), or a negative error
+ * Return: Zero if successful, or a negative error code.
- * code.
  */
-int snd_pcm_suspend(struct snd_pcm_substream *substream)
+static int snd_pcm_suspend(struct snd_pcm_substream *substream)
 {
 	int err;
 	unsigned long flags;
 
-	if (! substream)
-		return 0;
-
 	snd_pcm_stream_lock_irqsave(substream, flags);
 	err = snd_pcm_action(&snd_pcm_action_suspend, substream, 0);
 	snd_pcm_stream_unlock_irqrestore(substream, flags);
 	return err;
 }
-EXPORT_SYMBOL(snd_pcm_suspend);
 
 /**
  * snd_pcm_suspend_all - trigger SUSPEND to all substreams in the given pcm

sound/drivers/aloop.c

@@ -1200,12 +1200,8 @@ static int loopback_remove(struct platform_device *devptr)
 static int loopback_suspend(struct device *pdev)
 {
 	struct snd_card *card = dev_get_drvdata(pdev);
-	struct loopback *loopback = card->private_data;
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-
-	snd_pcm_suspend_all(loopback->pcm[0]);
-	snd_pcm_suspend_all(loopback->pcm[1]);
 	return 0;
 }
 	

sound/drivers/dummy.c

@@ -1138,10 +1138,8 @@ static int snd_dummy_remove(struct platform_device *devptr)
 static int snd_dummy_suspend(struct device *pdev)
 {
 	struct snd_card *card = dev_get_drvdata(pdev);
-	struct snd_dummy *dummy = card->private_data;
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-	snd_pcm_suspend_all(dummy->pcm);
 	return 0;
 }
 	

sound/drivers/pcsp/pcsp.c

@@ -197,7 +197,6 @@ static int pcsp_suspend(struct device *dev)
 {
 	struct snd_pcsp *chip = dev_get_drvdata(dev);
 	pcsp_stop_beep(chip);
-	snd_pcm_suspend_all(chip->pcm);
 	return 0;
 }
 

sound/drivers/vx/vx_core.c

@@ -732,12 +732,8 @@ EXPORT_SYMBOL(snd_vx_dsp_load);
  */
 int snd_vx_suspend(struct vx_core *chip)
 {
-	unsigned int i;
-
 	snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot);
 	chip->chip_status |= VX_STAT_IN_SUSPEND;
-	for (i = 0; i < chip->hw->num_codecs; i++)
-		snd_pcm_suspend_all(chip->pcm[i]);
 
 	return 0;
 }

sound/isa/ad1816a/ad1816a_lib.c

@@ -518,7 +518,6 @@ void snd_ad1816a_suspend(struct snd_ad1816a *chip)
 	int reg;
 	unsigned long flags;
 
-	snd_pcm_suspend_all(chip->pcm);
 	spin_lock_irqsave(&chip->lock, flags);
 	for (reg = 0; reg < 48; reg++)
 		chip->image[reg] = snd_ad1816a_read(chip, reg);

sound/isa/als100.c

@@ -322,7 +322,6 @@ static int snd_als100_pnp_suspend(struct pnp_card_link *pcard, pm_message_t stat
 	struct snd_sb *chip = acard->chip;
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-	snd_pcm_suspend_all(chip->pcm);
 	snd_sbmixer_suspend(chip);
 	return 0;
 }

sound/isa/cmi8328.c

@@ -434,7 +434,6 @@ static int snd_cmi8328_suspend(struct device *pdev, unsigned int n,
 	cmi = card->private_data;
 	snd_cmi8328_cfg_save(cmi->port, cmi->cfg);
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-	snd_pcm_suspend_all(cmi->wss->pcm);
 	cmi->wss->suspend(cmi->wss);
 
 	return 0;

sound/isa/cmi8330.c

@@ -484,7 +484,6 @@ static int snd_cmi8330_suspend(struct snd_card *card)
 	struct snd_cmi8330 *acard = card->private_data;
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-	snd_pcm_suspend_all(acard->pcm);
 	acard->wss->suspend(acard->wss);
 	snd_sbmixer_suspend(acard->sb);
 	return 0;

sound/isa/es1688/es1688.c

@@ -301,10 +301,8 @@ static int snd_es968_pnp_suspend(struct pnp_card_link *pcard,
 				 pm_message_t state)
 {
 	struct snd_card *card = pnp_get_card_drvdata(pcard);
-	struct snd_es1688 *chip = card->private_data;
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-	snd_pcm_suspend_all(chip->pcm);
 	return 0;
 }
 

sound/isa/es18xx.c

@@ -1731,8 +1731,6 @@ static int snd_es18xx_suspend(struct snd_card *card, pm_message_t state)
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 
-	snd_pcm_suspend_all(chip->pcm);
-
 	/* power down */
 	chip->pm_reg = (unsigned char)snd_es18xx_read(chip, ES18XX_PM);
 	chip->pm_reg |= (ES18XX_PM_FM | ES18XX_PM_SUS);

sound/isa/sb/jazz16.c

@@ -356,7 +356,6 @@ static int snd_jazz16_suspend(struct device *pdev, unsigned int n,
 	struct snd_sb *chip = acard->chip;
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-	snd_pcm_suspend_all(chip->pcm);
 	snd_sbmixer_suspend(chip);
 	return 0;
 }

sound/isa/sb/sb16.c

@@ -471,7 +471,6 @@ static int snd_sb16_suspend(struct snd_card *card, pm_message_t state)
 	struct snd_sb *chip = acard->chip;
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-	snd_pcm_suspend_all(chip->pcm);
 	snd_sbmixer_suspend(chip);
 	return 0;
 }

sound/isa/sb/sb8.c

@@ -218,7 +218,6 @@ static int snd_sb8_suspend(struct device *dev, unsigned int n,
 	struct snd_sb *chip = acard->chip;
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-	snd_pcm_suspend_all(chip->pcm);
 	snd_sbmixer_suspend(chip);
 	return 0;
 }

sound/isa/wss/wss_lib.c

@@ -1625,7 +1625,6 @@ static void snd_wss_suspend(struct snd_wss *chip)
 	int reg;
 	unsigned long flags;
 
-	snd_pcm_suspend_all(chip->pcm);
 	spin_lock_irqsave(&chip->reg_lock, flags);
 	for (reg = 0; reg < 32; reg++)
 		chip->image[reg] = snd_wss_in(chip, reg);

sound/pci/ali5451/ali5451.c

@@ -1882,10 +1882,8 @@ static int ali_suspend(struct device *dev)
 		return 0;
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-	for (i = 0; i < chip->num_of_codecs; i++) {
+	for (i = 0; i < chip->num_of_codecs; i++)
-		snd_pcm_suspend_all(chip->pcm[i]);
 		snd_ac97_suspend(chip->ac97[i]);
-	}
 
 	spin_lock_irq(&chip->reg_lock);
 	

sound/pci/als300.c

@@ -731,7 +731,6 @@ static int snd_als300_suspend(struct device *dev)
 	struct snd_als300 *chip = card->private_data;
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-	snd_pcm_suspend_all(chip->pcm);
 	snd_ac97_suspend(chip->ac97);
 	return 0;
 }

sound/pci/als4000.c

@@ -994,7 +994,6 @@ static int snd_als4000_suspend(struct device *dev)
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 	
-	snd_pcm_suspend_all(chip->pcm);
 	snd_sbmixer_suspend(chip);
 	return 0;
 }

sound/pci/atiixp.c

@@ -733,6 +733,10 @@ static int snd_atiixp_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 	case SNDRV_PCM_TRIGGER_START:
 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 	case SNDRV_PCM_TRIGGER_RESUME:
+		if (dma->running && dma->suspended &&
+		    cmd == SNDRV_PCM_TRIGGER_RESUME)
+			writel(dma->saved_curptr, chip->remap_addr +
+			       dma->ops->dt_cur);
 		dma->ops->enable_transfer(chip, 1);
 		dma->running = 1;
 		dma->suspended = 0;
@@ -740,9 +744,12 @@ static int snd_atiixp_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 	case SNDRV_PCM_TRIGGER_STOP:
 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 	case SNDRV_PCM_TRIGGER_SUSPEND:
+		dma->suspended = cmd == SNDRV_PCM_TRIGGER_SUSPEND;
+		if (dma->running && dma->suspended)
+			dma->saved_curptr = readl(chip->remap_addr +
+						  dma->ops->dt_cur);
 		dma->ops->enable_transfer(chip, 0);
 		dma->running = 0;
-		dma->suspended = cmd == SNDRV_PCM_TRIGGER_SUSPEND;
 		break;
 	default:
 		err = -EINVAL;
@@ -1479,14 +1486,6 @@ static int snd_atiixp_suspend(struct device *dev)
 	int i;
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-	for (i = 0; i < NUM_ATI_PCMDEVS; i++)
-		if (chip->pcmdevs[i]) {
-			struct atiixp_dma *dma = &chip->dmas[i];
-			if (dma->substream && dma->running)
-				dma->saved_curptr = readl(chip->remap_addr +
-							  dma->ops->dt_cur);
-			snd_pcm_suspend_all(chip->pcmdevs[i]);
-		}
 	for (i = 0; i < NUM_ATI_CODECS; i++)
 		snd_ac97_suspend(chip->ac97[i]);
 	snd_atiixp_aclink_down(chip);
@@ -1514,8 +1513,6 @@ static int snd_atiixp_resume(struct device *dev)
 				dma->substream->ops->prepare(dma->substream);
 				writel((u32)dma->desc_buf.addr | ATI_REG_LINKPTR_EN,
 				       chip->remap_addr + dma->ops->llp_offset);
-				writel(dma->saved_curptr, chip->remap_addr +
-				       dma->ops->dt_cur);
 			}
 		}
 

sound/pci/atiixp_modem.c

@@ -1125,8 +1125,6 @@ static int snd_atiixp_suspend(struct device *dev)
 	int i;
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-	for (i = 0; i < NUM_ATI_PCMDEVS; i++)
-		snd_pcm_suspend_all(chip->pcmdevs[i]);
 	for (i = 0; i < NUM_ATI_CODECS; i++)
 		snd_ac97_suspend(chip->ac97[i]);
 	snd_atiixp_aclink_down(chip);

sound/pci/azt3328.c

@@ -2699,10 +2699,6 @@ snd_azf3328_suspend(struct device *dev)
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 
-	/* same pcm object for playback/capture */
-	snd_pcm_suspend_all(chip->pcm[AZF_CODEC_PLAYBACK]);
-	snd_pcm_suspend_all(chip->pcm[AZF_CODEC_I2S_OUT]);
-
 	snd_azf3328_suspend_ac97(chip);
 
 	snd_azf3328_suspend_regs(chip, chip->ctrl_io,

sound/pci/ca0106/ca0106_main.c

@@ -1910,11 +1910,8 @@ static int snd_ca0106_suspend(struct device *dev)
 {
 	struct snd_card *card = dev_get_drvdata(dev);
 	struct snd_ca0106 *chip = card->private_data;
-	int i;
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-	for (i = 0; i < 4; i++)
-		snd_pcm_suspend_all(chip->pcm[i]);
 	if (chip->details->ac97)
 		snd_ac97_suspend(chip->ac97);
 	snd_ca0106_mixer_suspend(chip);

sound/pci/cmipci.c

@@ -3351,10 +3351,6 @@ static int snd_cmipci_suspend(struct device *dev)
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 	
-	snd_pcm_suspend_all(cm->pcm);
-	snd_pcm_suspend_all(cm->pcm2);
-	snd_pcm_suspend_all(cm->pcm_spdif);
-
 	/* save registers */
 	for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
 		cm->saved_regs[i] = snd_cmipci_read(cm, saved_regs[i]);

sound/pci/cs4281.c

@@ -2002,8 +2002,6 @@ static int cs4281_suspend(struct device *dev)
 	unsigned int i;
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-	snd_pcm_suspend_all(chip->pcm);
-
 	snd_ac97_suspend(chip->ac97);
 	snd_ac97_suspend(chip->ac97_secondary);
 

sound/pci/cs46xx/cs46xx_lib.c

@@ -3781,12 +3781,6 @@ static int snd_cs46xx_suspend(struct device *dev)
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 	chip->in_suspend = 1;
-	snd_pcm_suspend_all(chip->pcm);
-#ifdef CONFIG_SND_CS46XX_NEW_DSP
-	snd_pcm_suspend_all(chip->pcm_rear);
-	snd_pcm_suspend_all(chip->pcm_center_lfe);
-	snd_pcm_suspend_all(chip->pcm_iec958);
-#endif
 	// chip->ac97_powerdown = snd_cs46xx_codec_read(chip, AC97_POWER_CONTROL);
 	// chip->ac97_general_purpose = snd_cs46xx_codec_read(chip, BA0_AC97_GENERAL_PURPOSE);
 

sound/pci/cs5535audio/cs5535audio_pm.c

@@ -62,7 +62,6 @@ static int __maybe_unused snd_cs5535audio_suspend(struct device *dev)
 	int i;
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-	snd_pcm_suspend_all(cs5535au->pcm);
 	snd_ac97_suspend(cs5535au->ac97);
 	for (i = 0; i < NUM_CS5535AUDIO_DMAS; i++) {
 		struct cs5535audio_dma *dma = &cs5535au->dmas[i];

sound/pci/ctxfi/ctatc.c

@@ -1548,18 +1548,10 @@ static void atc_connect_resources(struct ct_atc *atc)
 #ifdef CONFIG_PM_SLEEP
 static int atc_suspend(struct ct_atc *atc)
 {
-	int i;
 	struct hw *hw = atc->hw;
 
 	snd_power_change_state(atc->card, SNDRV_CTL_POWER_D3hot);
 
-	for (i = FRONT; i < NUM_PCMS; i++) {
-		if (!atc->pcms[i])
-			continue;
-
-		snd_pcm_suspend_all(atc->pcms[i]);
-	}
-
 	atc_release_resources(atc);
 
 	hw->suspend(hw);

sound/pci/echoaudio/echoaudio.c

@@ -2165,9 +2165,6 @@ static int snd_echo_suspend(struct device *dev)
 {
 	struct echoaudio *chip = dev_get_drvdata(dev);
 
-	snd_pcm_suspend_all(chip->analog_pcm);
-	snd_pcm_suspend_all(chip->digital_pcm);
-
 #ifdef ECHOCARD_HAS_MIDI
 	/* This call can sleep */
 	if (chip->midi_out)

sound/pci/emu10k1/emu10k1.c

@@ -224,12 +224,6 @@ static int snd_emu10k1_suspend(struct device *dev)
 
 	cancel_delayed_work_sync(&emu->emu1010.firmware_work);
 
-	snd_pcm_suspend_all(emu->pcm);
-	snd_pcm_suspend_all(emu->pcm_mic);
-	snd_pcm_suspend_all(emu->pcm_efx);
-	snd_pcm_suspend_all(emu->pcm_multi);
-	snd_pcm_suspend_all(emu->pcm_p16v);
-
 	snd_ac97_suspend(emu->ac97);
 
 	snd_emu10k1_efx_suspend(emu);

sound/pci/ens1370.c

@@ -2037,9 +2037,6 @@ static int snd_ensoniq_suspend(struct device *dev)
 	
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 
-	snd_pcm_suspend_all(ensoniq->pcm1);
-	snd_pcm_suspend_all(ensoniq->pcm2);
-	
 #ifdef CHIP1371	
 	snd_ac97_suspend(ensoniq->u.es1371.ac97);
 #else

sound/pci/es1938.c

@@ -1475,7 +1475,6 @@ static int es1938_suspend(struct device *dev)
 	unsigned char *s, *d;
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-	snd_pcm_suspend_all(chip->pcm);
 
 	/* save mixer-related registers */
 	for (s = saved_regs, d = chip->saved_regs; *s; s++, d++)

sound/pci/es1968.c

@@ -2392,7 +2392,6 @@ static int es1968_suspend(struct device *dev)
 	chip->in_suspend = 1;
 	cancel_work_sync(&chip->hwvol_work);
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-	snd_pcm_suspend_all(chip->pcm);
 	snd_ac97_suspend(chip->ac97);
 	snd_es1968_bob_stop(chip);
 	return 0;

sound/pci/fm801.c

@@ -1408,7 +1408,6 @@ static int snd_fm801_suspend(struct device *dev)
 	if (chip->tea575x_tuner & TUNER_ONLY) {
 		/* FIXME: tea575x suspend */
 	} else {
-		snd_pcm_suspend_all(chip->pcm);
 		snd_ac97_suspend(chip->ac97);
 		snd_ac97_suspend(chip->ac97_sec);
 	}

sound/pci/hda/hda_codec.c

@@ -2927,8 +2927,6 @@ static int hda_codec_runtime_suspend(struct device *dev)
 	unsigned int state;
 
 	cancel_delayed_work_sync(&codec->jackpoll_work);
-	list_for_each_entry(pcm, &codec->pcm_list_head, list)
-		snd_pcm_suspend_all(pcm->pcm);
 	state = hda_call_codec_suspend(codec);
 	if (codec->link_down_at_suspend ||
 	    (codec_has_clkstop(codec) && codec_has_epss(codec) &&

sound/pci/ice1712/ice1712.c

@@ -2792,9 +2792,6 @@ static int snd_ice1712_suspend(struct device *dev)
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 
-	snd_pcm_suspend_all(ice->pcm);
-	snd_pcm_suspend_all(ice->pcm_pro);
-	snd_pcm_suspend_all(ice->pcm_ds);
 	snd_ac97_suspend(ice->ac97);
 
 	spin_lock_irq(&ice->reg_lock);

sound/pci/ice1712/ice1724.c

@@ -2804,9 +2804,6 @@ static int snd_vt1724_suspend(struct device *dev)
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 
-	snd_pcm_suspend_all(ice->pcm);
-	snd_pcm_suspend_all(ice->pcm_pro);
-	snd_pcm_suspend_all(ice->pcm_ds);
 	snd_ac97_suspend(ice->ac97);
 
 	spin_lock_irq(&ice->reg_lock);

sound/pci/intel8x0.c

@@ -2614,8 +2614,6 @@ static int intel8x0_suspend(struct device *dev)
 	int i;
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-	for (i = 0; i < chip->pcm_devs; i++)
-		snd_pcm_suspend_all(chip->pcm[i]);
 	for (i = 0; i < chip->ncodecs; i++)
 		snd_ac97_suspend(chip->ac97[i]);
 	if (chip->device_type == DEVICE_INTEL_ICH4)

sound/pci/intel8x0m.c

@@ -1025,11 +1025,8 @@ static int intel8x0m_suspend(struct device *dev)
 {
 	struct snd_card *card = dev_get_drvdata(dev);
 	struct intel8x0m *chip = card->private_data;
-	int i;
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-	for (i = 0; i < chip->pcm_devs; i++)
-		snd_pcm_suspend_all(chip->pcm[i]);
 	snd_ac97_suspend(chip->ac97);
 	if (chip->irq >= 0) {
 		free_irq(chip->irq, chip);

sound/pci/maestro3.c

@@ -2422,7 +2422,6 @@ static int m3_suspend(struct device *dev)
 	chip->in_suspend = 1;
 	cancel_work_sync(&chip->hwvol_work);
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-	snd_pcm_suspend_all(chip->pcm);
 	snd_ac97_suspend(chip->ac97);
 
 	msleep(10); /* give the assp a chance to idle.. */

sound/pci/nm256/nm256.c

@@ -1413,7 +1413,6 @@ static int nm256_suspend(struct device *dev)
 	struct nm256 *chip = card->private_data;
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-	snd_pcm_suspend_all(chip->pcm);
 	snd_ac97_suspend(chip->ac97);
 	chip->coeffs_current = 0;
 	return 0;

sound/pci/oxygen/oxygen_lib.c

@@ -744,13 +744,10 @@ static int oxygen_pci_suspend(struct device *dev)
 {
 	struct snd_card *card = dev_get_drvdata(dev);
 	struct oxygen *chip = card->private_data;
-	unsigned int i, saved_interrupt_mask;
+	unsigned int saved_interrupt_mask;
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 
-	for (i = 0; i < PCM_COUNT; ++i)
-		snd_pcm_suspend(chip->streams[i]);
-
 	if (chip->model.suspend)
 		chip->model.suspend(chip);
 

sound/pci/riptide/riptide.c

@@ -1158,7 +1158,6 @@ static int riptide_suspend(struct device *dev)
 
 	chip->in_suspend = 1;
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-	snd_pcm_suspend_all(chip->pcm);
 	snd_ac97_suspend(chip->ac97);
 	return 0;
 }

sound/pci/rme96.c

@@ -2388,8 +2388,6 @@ static int rme96_suspend(struct device *dev)
 	struct rme96 *rme96 = card->private_data;
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-	snd_pcm_suspend(rme96->playback_substream);
-	snd_pcm_suspend(rme96->capture_substream);
 
 	/* save capture & playback pointers */
 	rme96->playback_pointer = readl(rme96->iobase + RME96_IO_GET_PLAY_POS)

sound/pci/sis7019.c

@@ -1214,7 +1214,6 @@ static int sis_suspend(struct device *dev)
 	int i;
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-	snd_pcm_suspend_all(sis->pcm);
 	if (sis->codecs_present & SIS_PRIMARY_CODEC_PRESENT)
 		snd_ac97_suspend(sis->ac97[0]);
 	if (sis->codecs_present & SIS_SECONDARY_CODEC_PRESENT)

sound/pci/trident/trident_main.c

@@ -3915,10 +3915,6 @@ static int snd_trident_suspend(struct device *dev)
 
 	trident->in_suspend = 1;
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-	snd_pcm_suspend_all(trident->pcm);
-	snd_pcm_suspend_all(trident->foldback);
-	snd_pcm_suspend_all(trident->spdif);
-
 	snd_ac97_suspend(trident->ac97);
 	snd_ac97_suspend(trident->ac97_sec);
 	return 0;

sound/pci/via82xx.c

@@ -2278,8 +2278,6 @@ static int snd_via82xx_suspend(struct device *dev)
 	int i;
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-	for (i = 0; i < 2; i++)
-		snd_pcm_suspend_all(chip->pcms[i]);
 	for (i = 0; i < chip->num_devs; i++)
 		snd_via82xx_channel_reset(chip, &chip->devs[i]);
 	synchronize_irq(chip->irq);

sound/pci/via82xx_modem.c

@@ -1038,8 +1038,6 @@ static int snd_via82xx_suspend(struct device *dev)
 	int i;
 
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-	for (i = 0; i < 2; i++)
-		snd_pcm_suspend_all(chip->pcms[i]);
 	for (i = 0; i < chip->num_devs; i++)
 		snd_via82xx_channel_reset(chip, &chip->devs[i]);
 	synchronize_irq(chip->irq);

sound/pci/ymfpci/ymfpci_main.c

@@ -2304,10 +2304,6 @@ static int snd_ymfpci_suspend(struct device *dev)
 	unsigned int i;
 	
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-	snd_pcm_suspend_all(chip->pcm);
-	snd_pcm_suspend_all(chip->pcm2);
-	snd_pcm_suspend_all(chip->pcm_spdif);
-	snd_pcm_suspend_all(chip->pcm_4ch);
 	snd_ac97_suspend(chip->ac97);
 	for (i = 0; i < YDSXGR_NUM_SAVED_REGS; i++)
 		chip->saved_regs[i] = snd_ymfpci_readl(chip, saved_regs_index[i]);

sound/pcmcia/pdaudiocf/pdaudiocf_core.c

@@ -265,7 +265,6 @@ int snd_pdacf_suspend(struct snd_pdacf *chip)
 	u16 val;
 	
 	snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot);
-	snd_pcm_suspend_all(chip->pcm);
 	/* disable interrupts, but use direct write to preserve old register value in chip->regmap */
 	val = inw(chip->port + PDAUDIOCF_REG_IER);
 	val &= ~(PDAUDIOCF_IRQOVREN|PDAUDIOCF_IRQAKMEN|PDAUDIOCF_IRQLVLEN0|PDAUDIOCF_IRQLVLEN1);

sound/ppc/pmac.c

@@ -1365,7 +1365,6 @@ void snd_pmac_suspend(struct snd_pmac *chip)
 	snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot);
 	if (chip->suspend)
 		chip->suspend(chip);
-	snd_pcm_suspend_all(chip->pcm);
 	spin_lock_irqsave(&chip->reg_lock, flags);
 	snd_pmac_beep_stop(chip);
 	spin_unlock_irqrestore(&chip->reg_lock, flags);

sound/soc/soc-pcm.c

@@ -3155,6 +3155,7 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num)
 	}
 
 	pcm->private_free = soc_pcm_private_free;
+	pcm->no_device_suspend = true;
 out:
 	dev_info(rtd->card->dev, "%s <-> %s mapping ok\n",
 		 (rtd->num_codecs > 1) ? "multicodec" : rtd->codec_dai->name,

sound/usb/card.c

@@ -811,7 +811,6 @@ static int usb_audio_suspend(struct usb_interface *intf, pm_message_t message)
 		snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot);
 	if (!chip->num_suspended_intf++) {
 		list_for_each_entry(as, &chip->pcm_list, list) {
-			snd_pcm_suspend_all(as->pcm);
 			snd_usb_pcm_suspend(as);
 			as->substream[0].need_setup_ep =
 				as->substream[1].need_setup_ep = true;

sound/usb/line6/driver.c

@@ -849,10 +849,8 @@ int line6_suspend(struct usb_interface *interface, pm_message_t message)
 	if (line6->properties->capabilities & LINE6_CAP_CONTROL)
 		line6_stop_listen(line6);
 
-	if (line6pcm != NULL) {
+	if (line6pcm != NULL)
-		snd_pcm_suspend_all(line6pcm->pcm);
 		line6pcm->flags = 0;
-	}
 
 	return 0;
 }

sound/x86/intel_hdmi_audio.c

@@ -1651,18 +1651,6 @@ static int had_create_jack(struct snd_intelhad *ctx,
 static int __maybe_unused hdmi_lpe_audio_suspend(struct device *dev)
 {
 	struct snd_intelhad_card *card_ctx = dev_get_drvdata(dev);
-	int port;
-
-	for_each_port(card_ctx, port) {
-		struct snd_intelhad *ctx = &card_ctx->pcm_ctx[port];
-		struct snd_pcm_substream *substream;
-
-		substream = had_substream_get(ctx);
-		if (substream) {
-			snd_pcm_suspend(substream);
-			had_substream_put(ctx);
-		}
-	}
 
 	snd_power_change_state(card_ctx->card, SNDRV_CTL_POWER_D3hot);