Merge branch 'topic/asoc' into for-linus

Documentation/sound/alsa/soc/jack.txt

+ASoC jack detection
+===================
+
+ALSA has a standard API for representing physical jacks to user space,
+the kernel side of which can be seen in include/sound/jack.h.  ASoC
+provides a version of this API adding two additional features:
+
+ - It allows more than one jack detection method to work together on one
+   user visible jack.  In embedded systems it is common for multiple
+   to be present on a single jack but handled by separate bits of
+   hardware.
+
+ - Integration with DAPM, allowing DAPM endpoints to be updated
+   automatically based on the detected jack status (eg, turning off the
+   headphone outputs if no headphones are present).
+
+This is done by splitting the jacks up into three things working
+together: the jack itself represented by a struct snd_soc_jack, sets of
+snd_soc_jack_pins representing DAPM endpoints to update and blocks of
+code providing jack reporting mechanisms.
+
+For example, a system may have a stereo headset jack with two reporting
+mechanisms, one for the headphone and one for the microphone.  Some
+systems won't be able to use their speaker output while a headphone is
+connected and so will want to make sure to update both speaker and
+headphone when the headphone jack status changes.
+
+The jack - struct snd_soc_jack
+==============================
+
+This represents a physical jack on the system and is what is visible to
+user space.  The jack itself is completely passive, it is set up by the
+machine driver and updated by jack detection methods.
+
+Jacks are created by the machine driver calling snd_soc_jack_new().
+
+snd_soc_jack_pin
+================
+
+These represent a DAPM pin to update depending on some of the status
+bits supported by the jack.  Each snd_soc_jack has zero or more of these
+which are updated automatically.  They are created by the machine driver
+and associated with the jack using snd_soc_jack_add_pins().  The status
+of the endpoint may configured to be the opposite of the jack status if
+required (eg, enabling a built in microphone if a microphone is not
+connected via a jack).
+
+Jack detection methods
+======================
+
+Actual jack detection is done by code which is able to monitor some
+input to the system and update a jack by calling snd_soc_jack_report(),
+specifying a subset of bits to update.  The jack detection code should
+be set up by the machine driver, taking configuration for the jack to
+update and the set of things to report when the jack is connected.
+
+Often this is done based on the status of a GPIO - a handler for this is
+provided by the snd_soc_jack_add_gpio() function.  Other methods are
+also available, for example integrated into CODECs.  One example of
+CODEC integrated jack detection can be see in the WM8350 driver.
+
+Each jack may have multiple reporting mechanisms, though it will need at
+least one to be useful.
+
+Machine drivers
+===============
+
+These are all hooked together by the machine driver depending on the
+system hardware.  The machine driver will set up the snd_soc_jack and
+the list of pins to update then set up one or more jack detection
+mechanisms to update that jack based on their current status.

sound/arm/pxa2xx-ac97-lib.c

@@ -238,6 +238,8 @@ static inline void pxa_ac97_cold_pxa3xx(void)
 
 bool pxa2xx_ac97_try_warm_reset(struct snd_ac97 *ac97)
 {
+	unsigned long gsr;
+
 #ifdef CONFIG_PXA25x
 	if (cpu_is_pxa25x())
 		pxa_ac97_warm_pxa25x();
@@ -254,10 +256,10 @@ bool pxa2xx_ac97_try_warm_reset(struct snd_ac97 *ac97)
 	else
 #endif
 		BUG();
-
-	if (!((GSR | gsr_bits) & (GSR_PCR | GSR_SCR))) {
+	gsr = GSR | gsr_bits;
+	if (!(gsr & (GSR_PCR | GSR_SCR))) {
 		printk(KERN_INFO "%s: warm reset timeout (GSR=%#lx)\n",
-				 __func__, gsr_bits);
+				 __func__, gsr);
 
 		return false;
 	}
@@ -268,6 +270,8 @@ EXPORT_SYMBOL_GPL(pxa2xx_ac97_try_warm_reset);
 
 bool pxa2xx_ac97_try_cold_reset(struct snd_ac97 *ac97)
 {
+	unsigned long gsr;
+
 #ifdef CONFIG_PXA25x
 	if (cpu_is_pxa25x())
 		pxa_ac97_cold_pxa25x();
@@ -285,9 +289,10 @@ bool pxa2xx_ac97_try_cold_reset(struct snd_ac97 *ac97)
 #endif
 		BUG();
 
-	if (!((GSR | gsr_bits) & (GSR_PCR | GSR_SCR))) {
+	gsr = GSR | gsr_bits;
+	if (!(gsr & (GSR_PCR | GSR_SCR))) {
 		printk(KERN_INFO "%s: cold reset timeout (GSR=%#lx)\n",
-				 __func__, gsr_bits);
+				 __func__, gsr);
 
 		return false;
 	}

sound/soc/codecs/twl4030.c

@@ -122,6 +122,9 @@ struct twl4030_priv {
 	unsigned int bypass_state;
 	unsigned int codec_powered;
 	unsigned int codec_muted;
+
+	struct snd_pcm_substream *master_substream;
+	struct snd_pcm_substream *slave_substream;
 };
 
 /*
@@ -1217,6 +1220,50 @@ static int twl4030_set_bias_level(struct snd_soc_codec *codec,
 	return 0;
 }
 
+static int twl4030_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_device *socdev = rtd->socdev;
+	struct snd_soc_codec *codec = socdev->codec;
+	struct twl4030_priv *twl4030 = codec->private_data;
+
+	/* If we already have a playback or capture going then constrain
+	 * this substream to match it.
+	 */
+	if (twl4030->master_substream) {
+		struct snd_pcm_runtime *master_runtime;
+		master_runtime = twl4030->master_substream->runtime;
+
+		snd_pcm_hw_constraint_minmax(substream->runtime,
+					     SNDRV_PCM_HW_PARAM_RATE,
+					     master_runtime->rate,
+					     master_runtime->rate);
+
+		snd_pcm_hw_constraint_minmax(substream->runtime,
+					     SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
+					     master_runtime->sample_bits,
+					     master_runtime->sample_bits);
+
+		twl4030->slave_substream = substream;
+	} else
+		twl4030->master_substream = substream;
+
+	return 0;
+}
+
+static void twl4030_shutdown(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_device *socdev = rtd->socdev;
+	struct snd_soc_codec *codec = socdev->codec;
+	struct twl4030_priv *twl4030 = codec->private_data;
+
+	if (twl4030->master_substream == substream)
+		twl4030->master_substream = twl4030->slave_substream;
+
+	twl4030->slave_substream = NULL;
+}
+
 static int twl4030_hw_params(struct snd_pcm_substream *substream,
 			   struct snd_pcm_hw_params *params,
 			   struct snd_soc_dai *dai)
@@ -1224,8 +1271,13 @@ static int twl4030_hw_params(struct snd_pcm_substream *substream,
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_device *socdev = rtd->socdev;
 	struct snd_soc_codec *codec = socdev->card->codec;
+	struct twl4030_priv *twl4030 = codec->private_data;
 	u8 mode, old_mode, format, old_format;
 
+	if (substream == twl4030->slave_substream)
+		/* Ignoring hw_params for slave substream */
+		return 0;
+
 	/* bit rate */
 	old_mode = twl4030_read_reg_cache(codec,
 			TWL4030_REG_CODEC_MODE) & ~TWL4030_CODECPDZ;
@@ -1259,6 +1311,9 @@ static int twl4030_hw_params(struct snd_pcm_substream *substream,
 	case 48000:
 		mode |= TWL4030_APLL_RATE_48000;
 		break;
+	case 96000:
+		mode |= TWL4030_APLL_RATE_96000;
+		break;
 	default:
 		printk(KERN_ERR "TWL4030 hw params: unknown rate %d\n",
 			params_rate(params));
@@ -1384,6 +1439,8 @@ static int twl4030_set_dai_fmt(struct snd_soc_dai *codec_dai,
 #define TWL4030_FORMATS	 (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FORMAT_S24_LE)
 
 static struct snd_soc_dai_ops twl4030_dai_ops = {
+	.startup	= twl4030_startup,
+	.shutdown	= twl4030_shutdown,
 	.hw_params	= twl4030_hw_params,
 	.set_sysclk	= twl4030_set_dai_sysclk,
 	.set_fmt	= twl4030_set_dai_fmt,
@@ -1395,7 +1452,7 @@ struct snd_soc_dai twl4030_dai = {
 		.stream_name = "Playback",
 		.channels_min = 2,
 		.channels_max = 2,
-		.rates = TWL4030_RATES,
+		.rates = TWL4030_RATES | SNDRV_PCM_RATE_96000,
 		.formats = TWL4030_FORMATS,},
 	.capture = {
 		.stream_name = "Capture",

sound/soc/codecs/twl4030.h

@@ -109,6 +109,7 @@
 #define TWL4030_APLL_RATE_32000		0x80
 #define TWL4030_APLL_RATE_44100		0x90
 #define TWL4030_APLL_RATE_48000		0xA0
+#define TWL4030_APLL_RATE_96000		0xE0
 #define TWL4030_SEL_16K			0x04
 #define TWL4030_CODECPDZ		0x02
 #define TWL4030_OPT_MODE		0x01

sound/soc/codecs/wm9705.c

@@ -317,6 +317,41 @@ static int wm9705_reset(struct snd_soc_codec *codec)
 	return -EIO;
 }
 
+#ifdef CONFIG_PM
+static int wm9705_soc_suspend(struct platform_device *pdev)
+{
+	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+	struct snd_soc_codec *codec = socdev->card->codec;
+
+	soc_ac97_ops.write(codec->ac97, AC97_POWERDOWN, 0xffff);
+
+	return 0;
+}
+
+static int wm9705_soc_resume(struct platform_device *pdev)
+{
+	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+	struct snd_soc_codec *codec = socdev->card->codec;
+	int i, ret;
+	u16 *cache = codec->reg_cache;
+
+	ret = wm9705_reset(codec);
+	if (ret < 0) {
+		printk(KERN_ERR "could not reset AC97 codec\n");
+		return ret;
+	}
+
+	for (i = 2; i < ARRAY_SIZE(wm9705_reg) << 1; i += 2) {
+		soc_ac97_ops.write(codec->ac97, i, cache[i>>1]);
+	}
+
+	return 0;
+}
+#else
+#define wm9705_soc_suspend NULL
+#define wm9705_soc_resume NULL
+#endif
+
 static int wm9705_soc_probe(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
@@ -407,6 +442,8 @@ static int wm9705_soc_remove(struct platform_device *pdev)
 struct snd_soc_codec_device soc_codec_dev_wm9705 = {
 	.probe = 	wm9705_soc_probe,
 	.remove = 	wm9705_soc_remove,
+	.suspend =	wm9705_soc_suspend,
+	.resume =	wm9705_soc_resume,
 };
 EXPORT_SYMBOL_GPL(soc_codec_dev_wm9705);
 

sound/soc/fsl/fsl_dma.c

@@ -697,6 +697,23 @@ static snd_pcm_uframes_t fsl_dma_pointer(struct snd_pcm_substream *substream)
 	else
 		position = in_be32(&dma_channel->dar);
 
+	/*
+	 * When capture is started, the SSI immediately starts to fill its FIFO.
+	 * This means that the DMA controller is not started until the FIFO is
+	 * full.  However, ALSA calls this function before that happens, when
+	 * MR.DAR is still zero.  In this case, just return zero to indicate
+	 * that nothing has been received yet.
+	 */
+	if (!position)
+		return 0;
+
+	if ((position < dma_private->dma_buf_phys) ||
+	    (position > dma_private->dma_buf_end)) {
+		dev_err(substream->pcm->card->dev,
+			"dma pointer is out of range, halting stream\n");
+		return SNDRV_PCM_POS_XRUN;
+	}
+
 	frames = bytes_to_frames(runtime, position - dma_private->dma_buf_phys);
 
 	/*

sound/soc/fsl/fsl_ssi.c

@@ -60,6 +60,13 @@
 	 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_LE)
 #endif
 
+/* SIER bitflag of interrupts to enable */
+#define SIER_FLAGS (CCSR_SSI_SIER_TFRC_EN | CCSR_SSI_SIER_TDMAE | \
+		    CCSR_SSI_SIER_TIE | CCSR_SSI_SIER_TUE0_EN | \
+		    CCSR_SSI_SIER_TUE1_EN | CCSR_SSI_SIER_RFRC_EN | \
+		    CCSR_SSI_SIER_RDMAE | CCSR_SSI_SIER_RIE | \
+		    CCSR_SSI_SIER_ROE0_EN | CCSR_SSI_SIER_ROE1_EN)
+
 /**
  * fsl_ssi_private: per-SSI private data
  *
@@ -140,7 +147,7 @@ static irqreturn_t fsl_ssi_isr(int irq, void *dev_id)
 	   were interrupted for.  We mask it with the Interrupt Enable register
 	   so that we only check for events that we're interested in.
 	 */
-	sisr = in_be32(&ssi->sisr) & in_be32(&ssi->sier);
+	sisr = in_be32(&ssi->sisr) & SIER_FLAGS;
 
 	if (sisr & CCSR_SSI_SISR_RFRC) {
 		ssi_private->stats.rfrc++;
@@ -324,12 +331,7 @@ static int fsl_ssi_startup(struct snd_pcm_substream *substream,
 		 */
 
 		/* 4. Enable the interrupts and DMA requests */
-		out_be32(&ssi->sier,
-			 CCSR_SSI_SIER_TFRC_EN | CCSR_SSI_SIER_TDMAE |
-			 CCSR_SSI_SIER_TIE | CCSR_SSI_SIER_TUE0_EN |
-			 CCSR_SSI_SIER_TUE1_EN | CCSR_SSI_SIER_RFRC_EN |
-			 CCSR_SSI_SIER_RDMAE | CCSR_SSI_SIER_RIE |
-			 CCSR_SSI_SIER_ROE0_EN | CCSR_SSI_SIER_ROE1_EN);
+		out_be32(&ssi->sier, SIER_FLAGS);
 
 		/*
 		 * Set the watermark for transmit FIFI 0 and receive FIFO 0. We
@@ -466,28 +468,12 @@ static int fsl_ssi_trigger(struct snd_pcm_substream *substream, int cmd,
 	case SNDRV_PCM_TRIGGER_START:
 		clrbits32(&ssi->scr, CCSR_SSI_SCR_SSIEN);
 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
-		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
 			setbits32(&ssi->scr,
 				CCSR_SSI_SCR_SSIEN | CCSR_SSI_SCR_TE);
-		} else {
-			long timeout = jiffies + 10;
-
+		else
 			setbits32(&ssi->scr,
 				CCSR_SSI_SCR_SSIEN | CCSR_SSI_SCR_RE);
-
-			/* Wait until the SSI has filled its FIFO. Without this
-			 * delay, ALSA complains about overruns.  When the FIFO
-			 * is full, the DMA controller initiates its first
-			 * transfer.  Until then, however, the DMA's DAR
-			 * register is zero, which translates to an
-			 * out-of-bounds pointer.  This makes ALSA think an
-			 * overrun has occurred.
-			 */
-			while (!(in_be32(&ssi->sisr) & CCSR_SSI_SISR_RFF0) &&
-			       (jiffies < timeout));
-			if (!(in_be32(&ssi->sisr) & CCSR_SSI_SISR_RFF0))
-				return -EIO;
-		}
 		break;
 
 	case SNDRV_PCM_TRIGGER_STOP:
@@ -606,39 +592,52 @@ static struct snd_soc_dai fsl_ssi_dai_template = {
 	.ops = &fsl_ssi_dai_ops,
 };
 
+/* Show the statistics of a flag only if its interrupt is enabled.  The
+ * compiler will optimze this code to a no-op if the interrupt is not
+ * enabled.
+ */
+#define SIER_SHOW(flag, name) \
+	do { \
+		if (SIER_FLAGS & CCSR_SSI_SIER_##flag) \
+			length += sprintf(buf + length, #name "=%u\n", \
+				ssi_private->stats.name); \
+	} while (0)
+
+
 /**
  * fsl_sysfs_ssi_show: display SSI statistics
  *
- * Display the statistics for the current SSI device.
+ * Display the statistics for the current SSI device.  To avoid confusion,
+ * we only show those counts that are enabled.
  */
 static ssize_t fsl_sysfs_ssi_show(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
 	struct fsl_ssi_private *ssi_private =
-	container_of(attr, struct fsl_ssi_private, dev_attr);
-	ssize_t length;
-
-	length = sprintf(buf, "rfrc=%u", ssi_private->stats.rfrc);
-	length += sprintf(buf + length, "\ttfrc=%u", ssi_private->stats.tfrc);
-	length += sprintf(buf + length, "\tcmdau=%u", ssi_private->stats.cmdau);
-	length += sprintf(buf + length, "\tcmddu=%u", ssi_private->stats.cmddu);
-	length += sprintf(buf + length, "\trxt=%u", ssi_private->stats.rxt);
-	length += sprintf(buf + length, "\trdr1=%u", ssi_private->stats.rdr1);
-	length += sprintf(buf + length, "\trdr0=%u", ssi_private->stats.rdr0);
-	length += sprintf(buf + length, "\ttde1=%u", ssi_private->stats.tde1);
-	length += sprintf(buf + length, "\ttde0=%u", ssi_private->stats.tde0);
-	length += sprintf(buf + length, "\troe1=%u", ssi_private->stats.roe1);
-	length += sprintf(buf + length, "\troe0=%u", ssi_private->stats.roe0);
-	length += sprintf(buf + length, "\ttue1=%u", ssi_private->stats.tue1);
-	length += sprintf(buf + length, "\ttue0=%u", ssi_private->stats.tue0);
-	length += sprintf(buf + length, "\ttfs=%u", ssi_private->stats.tfs);
-	length += sprintf(buf + length, "\trfs=%u", ssi_private->stats.rfs);
-	length += sprintf(buf + length, "\ttls=%u", ssi_private->stats.tls);
-	length += sprintf(buf + length, "\trls=%u", ssi_private->stats.rls);
-	length += sprintf(buf + length, "\trff1=%u", ssi_private->stats.rff1);
-	length += sprintf(buf + length, "\trff0=%u", ssi_private->stats.rff0);
-	length += sprintf(buf + length, "\ttfe1=%u", ssi_private->stats.tfe1);
-	length += sprintf(buf + length, "\ttfe0=%u\n", ssi_private->stats.tfe0);
+		container_of(attr, struct fsl_ssi_private, dev_attr);
+	ssize_t length = 0;
+
+	SIER_SHOW(RFRC_EN, rfrc);
+	SIER_SHOW(TFRC_EN, tfrc);
+	SIER_SHOW(CMDAU_EN, cmdau);
+	SIER_SHOW(CMDDU_EN, cmddu);
+	SIER_SHOW(RXT_EN, rxt);
+	SIER_SHOW(RDR1_EN, rdr1);
+	SIER_SHOW(RDR0_EN, rdr0);
+	SIER_SHOW(TDE1_EN, tde1);
+	SIER_SHOW(TDE0_EN, tde0);
+	SIER_SHOW(ROE1_EN, roe1);
+	SIER_SHOW(ROE0_EN, roe0);
+	SIER_SHOW(TUE1_EN, tue1);
+	SIER_SHOW(TUE0_EN, tue0);
+	SIER_SHOW(TFS_EN, tfs);
+	SIER_SHOW(RFS_EN, rfs);
+	SIER_SHOW(TLS_EN, tls);
+	SIER_SHOW(RLS_EN, rls);
+	SIER_SHOW(RFF1_EN, rff1);
+	SIER_SHOW(RFF0_EN, rff0);
+	SIER_SHOW(TFE1_EN, tfe1);
+	SIER_SHOW(TFE0_EN, tfe0);
 
 	return length;
 }

sound/soc/omap/omap-mcbsp.c

@@ -146,6 +146,17 @@ static int omap_mcbsp_dai_startup(struct snd_pcm_substream *substream,
 	struct omap_mcbsp_data *mcbsp_data = to_mcbsp(cpu_dai->private_data);
 	int err = 0;
 
+	if (cpu_is_omap343x() && mcbsp_data->bus_id == 1) {
+		/*
+		 * McBSP2 in OMAP3 has 1024 * 32-bit internal audio buffer.
+		 * Set constraint for minimum buffer size to the same than FIFO
+		 * size in order to avoid underruns in playback startup because
+		 * HW is keeping the DMA request active until FIFO is filled.
+		 */
+		snd_pcm_hw_constraint_minmax(substream->runtime,
+			SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 4096, UINT_MAX);
+	}
+
 	if (!cpu_dai->active)
 		err = omap_mcbsp_request(mcbsp_data->bus_id);
 

sound/soc/pxa/Kconfig

@@ -116,6 +116,16 @@ config SND_SOC_ZYLONITE
 	  Say Y if you want to add support for SoC audio on the
 	  Marvell Zylonite reference platform.
 
+config SND_PXA2XX_SOC_MAGICIAN
+	tristate "SoC Audio support for HTC Magician"
+	depends on SND_PXA2XX_SOC && MACH_MAGICIAN
+	select SND_PXA2XX_SOC_I2S
+	select SND_PXA_SOC_SSP
+	select SND_SOC_UDA1380
+	help
+	  Say Y if you want to add support for SoC audio on the
+	  HTC Magician.
+
 config SND_PXA2XX_SOC_MIOA701
         tristate "SoC Audio support for MIO A701"
         depends on SND_PXA2XX_SOC && MACH_MIOA701

sound/soc/pxa/Makefile

@@ -20,6 +20,7 @@ snd-soc-spitz-objs := spitz.o
 snd-soc-em-x270-objs := em-x270.o
 snd-soc-palm27x-objs := palm27x.o
 snd-soc-zylonite-objs := zylonite.o
+snd-soc-magician-objs := magician.o
 snd-soc-mioa701-objs := mioa701_wm9713.o
 
 obj-$(CONFIG_SND_PXA2XX_SOC_CORGI) += snd-soc-corgi.o
@@ -31,5 +32,6 @@ obj-$(CONFIG_SND_PXA2XX_SOC_E800) += snd-soc-e800.o
 obj-$(CONFIG_SND_PXA2XX_SOC_SPITZ) += snd-soc-spitz.o
 obj-$(CONFIG_SND_PXA2XX_SOC_EM_X270) += snd-soc-em-x270.o
 obj-$(CONFIG_SND_PXA2XX_SOC_PALM27X) += snd-soc-palm27x.o
+obj-$(CONFIG_SND_PXA2XX_SOC_MAGICIAN) += snd-soc-magician.o
 obj-$(CONFIG_SND_PXA2XX_SOC_MIOA701) += snd-soc-mioa701.o
 obj-$(CONFIG_SND_SOC_ZYLONITE) += snd-soc-zylonite.o

sound/soc/pxa/pxa-ssp.c

@@ -627,12 +627,18 @@ static int pxa_ssp_hw_params(struct snd_pcm_substream *substream,
 	u32 sscr0;
 	u32 sspsp;
 	int width = snd_pcm_format_physical_width(params_format(params));
+	int ttsa = ssp_read_reg(ssp, SSTSA) & 0xf;
 
 	/* select correct DMA params */
 	if (substream->stream != SNDRV_PCM_STREAM_PLAYBACK)
 		dma = 1; /* capture DMA offset is 1,3 */
-	if (chn == 2)
-		dma += 2; /* stereo DMA offset is 2, mono is 0 */
+	/* Network mode with one active slot (ttsa == 1) can be used
+	 * to force 16-bit frame width on the wire (for S16_LE), even
+	 * with two channels. Use 16-bit DMA transfers for this case.
+	 */
+	if (((chn == 2) && (ttsa != 1)) || (width == 32))
+		dma += 2; /* 32-bit DMA offset is 2, 16-bit is 0 */
+
 	cpu_dai->dma_data = ssp_dma_params[cpu_dai->id][dma];
 
 	dev_dbg(&ssp->pdev->dev, "pxa_ssp_hw_params: dma %d\n", dma);
@@ -712,7 +718,7 @@ static int pxa_ssp_hw_params(struct snd_pcm_substream *substream,
 	/* When we use a network mode, we always require TDM slots
 	 * - complain loudly and fail if they've not been set up yet.
 	 */
-	if ((sscr0 & SSCR0_MOD) && !(ssp_read_reg(ssp, SSTSA) & 0xf)) {
+	if ((sscr0 & SSCR0_MOD) && !ttsa) {
 		dev_err(&ssp->pdev->dev, "No TDM timeslot configured\n");
 		return -EINVAL;
 	}

sound/soc/soc-core.c

@@ -98,7 +98,7 @@ static int soc_ac97_dev_register(struct snd_soc_codec *codec)
 	int err;
 
 	codec->ac97->dev.bus = &ac97_bus_type;
-	codec->ac97->dev.parent = NULL;
+	codec->ac97->dev.parent = codec->card->dev;
 	codec->ac97->dev.release = soc_ac97_device_release;
 
 	dev_set_name(&codec->ac97->dev, "%d-%d:%s",
@@ -767,11 +767,21 @@ static int soc_resume(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
 	struct snd_soc_card *card = socdev->card;
+	struct snd_soc_dai *cpu_dai = card->dai_link[0].cpu_dai;
 
-	dev_dbg(socdev->dev, "scheduling resume work\n");
-
-	if (!schedule_work(&card->deferred_resume_work))
-		dev_err(socdev->dev, "resume work item may be lost\n");
+	/* AC97 devices might have other drivers hanging off them so
+	 * need to resume immediately.  Other drivers don't have that
+	 * problem and may take a substantial amount of time to resume
+	 * due to I/O costs and anti-pop so handle them out of line.
+	 */
+	if (cpu_dai->ac97_control) {
+		dev_dbg(socdev->dev, "Resuming AC97 immediately\n");
+		soc_resume_deferred(&card->deferred_resume_work);
+	} else {
+		dev_dbg(socdev->dev, "Scheduling resume work\n");
+		if (!schedule_work(&card->deferred_resume_work))
+			dev_err(socdev->dev, "resume work item may be lost\n");
+	}
 
 	return 0;
 }