diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index 63d088f2265f5c33ce8a26d707ff220bd61c2a1e..a2a792c18c40e18412ac7e9e015d22c6035b2958 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -249,6 +249,12 @@ static int snd_pcm_update_hw_ptr_interrupt(struct snd_pcm_substream *substream)
 			new_hw_ptr = hw_base + pos;
 		}
 	}
+	/* Skip the jiffies check for hardwares with BATCH flag.
+	 * Such hardware usually just increases the position at each IRQ,
+	 * thus it can't give any strange position.
+	 */
+	if (runtime->hw.info & SNDRV_PCM_INFO_BATCH)
+		goto no_jiffies_check;
 	hdelta = new_hw_ptr - old_hw_ptr;
 	jdelta = jiffies - runtime->hw_ptr_jiffies;
 	if (((hdelta * HZ) / runtime->rate) > jdelta + HZ/100) {
@@ -272,6 +278,7 @@ static int snd_pcm_update_hw_ptr_interrupt(struct snd_pcm_substream *substream)
 		hw_base -= hw_base % runtime->buffer_size;
 		delta = 0;
 	}
+ no_jiffies_check:
 	if (delta > runtime->period_size + runtime->period_size / 2) {
 		hw_ptr_error(substream,
 			     "Lost interrupts? "
diff --git a/sound/isa/msnd/msnd.c b/sound/isa/msnd/msnd.c
index 906454413ed21618f6bb8b162a69bf5a3bafe9ee..3a1526ae1729ace425a340b11a5cc1aa015d507c 100644
--- a/sound/isa/msnd/msnd.c
+++ b/sound/isa/msnd/msnd.c
@@ -438,7 +438,8 @@ static void snd_msnd_capture_reset_queue(struct snd_msnd *chip,
 static struct snd_pcm_hardware snd_msnd_playback = {
 	.info =			SNDRV_PCM_INFO_MMAP |
 				SNDRV_PCM_INFO_INTERLEAVED |
-				SNDRV_PCM_INFO_MMAP_VALID,
+				SNDRV_PCM_INFO_MMAP_VALID |
+				SNDRV_PCM_INFO_BATCH,
 	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
 	.rates =		SNDRV_PCM_RATE_8000_48000,
 	.rate_min =		8000,
@@ -456,7 +457,8 @@ static struct snd_pcm_hardware snd_msnd_playback = {
 static struct snd_pcm_hardware snd_msnd_capture = {
 	.info =			SNDRV_PCM_INFO_MMAP |
 				SNDRV_PCM_INFO_INTERLEAVED |
-				SNDRV_PCM_INFO_MMAP_VALID,
+				SNDRV_PCM_INFO_MMAP_VALID |
+				SNDRV_PCM_INFO_BATCH,
 	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
 	.rates =		SNDRV_PCM_RATE_8000_48000,
 	.rate_min =		8000,
diff --git a/sound/pci/bt87x.c b/sound/pci/bt87x.c
index a299340519dfab53f07e3991124ca18223753c32..ce3f2e90f4d7545ac350b5a00fdb29bc0ef5d31a 100644
--- a/sound/pci/bt87x.c
+++ b/sound/pci/bt87x.c
@@ -349,7 +349,8 @@ static struct snd_pcm_hardware snd_bt87x_digital_hw = {
 	.info = SNDRV_PCM_INFO_MMAP |
 		SNDRV_PCM_INFO_INTERLEAVED |
 		SNDRV_PCM_INFO_BLOCK_TRANSFER |
-		SNDRV_PCM_INFO_MMAP_VALID,
+		SNDRV_PCM_INFO_MMAP_VALID |
+		SNDRV_PCM_INFO_BATCH,
 	.formats = SNDRV_PCM_FMTBIT_S16_LE,
 	.rates = 0, /* set at runtime */
 	.channels_min = 2,
@@ -365,7 +366,8 @@ static struct snd_pcm_hardware snd_bt87x_analog_hw = {
 	.info = SNDRV_PCM_INFO_MMAP |
 		SNDRV_PCM_INFO_INTERLEAVED |
 		SNDRV_PCM_INFO_BLOCK_TRANSFER |
-		SNDRV_PCM_INFO_MMAP_VALID,
+		SNDRV_PCM_INFO_MMAP_VALID |
+		SNDRV_PCM_INFO_BATCH,
 	.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8,
 	.rates = SNDRV_PCM_RATE_KNOT,
 	.rate_min = ANALOG_CLOCK / CLOCK_DIV_MAX,
diff --git a/sound/pci/echoaudio/indigodjx.c b/sound/pci/echoaudio/indigodjx.c
index 3482ef69f4912451fd51a8109594cc9aff4b63a0..2e44316530a298d39e1295df8d1f3f9edc585ef0 100644
--- a/sound/pci/echoaudio/indigodjx.c
+++ b/sound/pci/echoaudio/indigodjx.c
@@ -88,6 +88,7 @@ static struct snd_pcm_hardware pcm_hardware_skel = {
 	.rates = 	SNDRV_PCM_RATE_32000 |
 			SNDRV_PCM_RATE_44100 |
 			SNDRV_PCM_RATE_48000 |
+			SNDRV_PCM_RATE_64000 |
 			SNDRV_PCM_RATE_88200 |
 			SNDRV_PCM_RATE_96000,
 	.rate_min = 32000,
diff --git a/sound/pci/echoaudio/indigoiox.c b/sound/pci/echoaudio/indigoiox.c
index aebee27a40ff703c84402cb06f02ab699294f81e..eb3819f9654a6630184b06436f9f9d1f5f9e7c9b 100644
--- a/sound/pci/echoaudio/indigoiox.c
+++ b/sound/pci/echoaudio/indigoiox.c
@@ -89,6 +89,7 @@ static struct snd_pcm_hardware pcm_hardware_skel = {
 	.rates = 	SNDRV_PCM_RATE_32000 |
 			SNDRV_PCM_RATE_44100 |
 			SNDRV_PCM_RATE_48000 |
+			SNDRV_PCM_RATE_64000 |
 			SNDRV_PCM_RATE_88200 |
 			SNDRV_PCM_RATE_96000,
 	.rate_min = 32000,
diff --git a/sound/pci/korg1212/korg1212.c b/sound/pci/korg1212/korg1212.c
index 8b79969034be24853b57afda72a88566ed316d10..7cc38a11e9978c683f96fc55be8014754d694a34 100644
--- a/sound/pci/korg1212/korg1212.c
+++ b/sound/pci/korg1212/korg1212.c
@@ -1238,7 +1238,8 @@ static struct snd_pcm_hardware snd_korg1212_playback_info =
 {
 	.info =              (SNDRV_PCM_INFO_MMAP |
                               SNDRV_PCM_INFO_MMAP_VALID |
-                              SNDRV_PCM_INFO_INTERLEAVED),
+			      SNDRV_PCM_INFO_INTERLEAVED |
+			      SNDRV_PCM_INFO_BATCH),
 	.formats =	      SNDRV_PCM_FMTBIT_S16_LE,
         .rates =              (SNDRV_PCM_RATE_44100 |
                               SNDRV_PCM_RATE_48000),
@@ -1258,7 +1259,8 @@ static struct snd_pcm_hardware snd_korg1212_capture_info =
 {
         .info =              (SNDRV_PCM_INFO_MMAP |
                               SNDRV_PCM_INFO_MMAP_VALID |
-                              SNDRV_PCM_INFO_INTERLEAVED),
+			      SNDRV_PCM_INFO_INTERLEAVED |
+			      SNDRV_PCM_INFO_BATCH),
         .formats =	      SNDRV_PCM_FMTBIT_S16_LE,
         .rates =	      (SNDRV_PCM_RATE_44100 |
                               SNDRV_PCM_RATE_48000),
diff --git a/sound/pcmcia/pdaudiocf/pdaudiocf_pcm.c b/sound/pcmcia/pdaudiocf/pdaudiocf_pcm.c
index 01066c95580e806b2ba83841e5edb52765e4a444..d057e648964389a53c7905a68311ecf35aff552a 100644
--- a/sound/pcmcia/pdaudiocf/pdaudiocf_pcm.c
+++ b/sound/pcmcia/pdaudiocf/pdaudiocf_pcm.c
@@ -240,7 +240,8 @@ static int pdacf_pcm_prepare(struct snd_pcm_substream *subs)
 static struct snd_pcm_hardware pdacf_pcm_capture_hw = {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
-				 SNDRV_PCM_INFO_MMAP_VALID),
+				 SNDRV_PCM_INFO_MMAP_VALID |
+				 SNDRV_PCM_INFO_BATCH),
 	.formats =		SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
 				SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |
 				SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE,
diff --git a/sound/soc/au1x/dbdma2.c b/sound/soc/au1x/dbdma2.c
index 30490a2591487e724c40c3b42fed27238281ac5d..594c6c5b7838174d168b9a0e1833584bb38a1b97 100644
--- a/sound/soc/au1x/dbdma2.c
+++ b/sound/soc/au1x/dbdma2.c
@@ -82,7 +82,7 @@ static struct au1xpsc_audio_dmadata *au1xpsc_audio_pcmdma[2];
 /* PCM hardware DMA capabilities - platform specific */
 static const struct snd_pcm_hardware au1xpsc_pcm_hardware = {
 	.info		  = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
-			    SNDRV_PCM_INFO_INTERLEAVED,
+			    SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BATCH,
 	.formats	  = AU1XPSC_PCM_FMTS,
 	.period_bytes_min = AU1XPSC_PERIOD_MIN_BYTES,
 	.period_bytes_max = 4096 * 1024 - 1,
diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c
index 921b205de28ab51ef5239dd7e07fe01cfaac2066..df7c8c281d2f8bec0aff69307bb7f1a5985fe1d3 100644
--- a/sound/soc/codecs/twl4030.c
+++ b/sound/soc/codecs/twl4030.c
@@ -835,6 +835,12 @@ static DECLARE_TLV_DB_SCALE(analog_tlv, -2400, 200, 0);
  */
 static DECLARE_TLV_DB_SCALE(output_tvl, -1200, 600, 1);
 
+/*
+ * Gain control for earpiece amplifier
+ * 0 dB to 12 dB in 6 dB steps (mute instead of -6)
+ */
+static DECLARE_TLV_DB_SCALE(output_ear_tvl, -600, 600, 1);
+
 /*
  * Capture gain after the ADCs
  * from 0 dB to 31 dB in 1 dB steps
@@ -900,7 +906,7 @@ static const struct snd_kcontrol_new twl4030_snd_controls[] = {
 		4, 3, 0, output_tvl),
 
 	SOC_SINGLE_TLV_TWL4030("Earpiece Playback Volume",
-		TWL4030_REG_EAR_CTL, 4, 3, 0, output_tvl),
+		TWL4030_REG_EAR_CTL, 4, 3, 0, output_ear_tvl),
 
 	/* Common capture gain controls */
 	SOC_DOUBLE_R_TLV("TX1 Digital Capture Volume",
diff --git a/sound/soc/codecs/wm8350.c b/sound/soc/codecs/wm8350.c
index 3b1d0993bed947fa815c559b0cd8db1aa144f24f..0275321ff8ab29840c994bb107c3b54d8529f1aa 100644
--- a/sound/soc/codecs/wm8350.c
+++ b/sound/soc/codecs/wm8350.c
@@ -968,7 +968,7 @@ static int wm8350_pcm_trigger(struct snd_pcm_substream *substream,
 	 * required for LRC in master mode. The DACs or ADCs need a
 	 * valid audio path i.e. pin -> ADC or DAC -> pin before
 	 * the LRC will be enabled in master mode. */
-	if (!master && cmd != SNDRV_PCM_TRIGGER_START)
+	if (!master || cmd != SNDRV_PCM_TRIGGER_START)
 		return 0;
 
 	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
diff --git a/sound/soc/fsl/mpc5200_psc_i2s.c b/sound/soc/fsl/mpc5200_psc_i2s.c
index 3aa729df27b58cddea053c96f655d518d73ef694..1111c710118a2b8bd84fd6796d9c26a096437fa5 100644
--- a/sound/soc/fsl/mpc5200_psc_i2s.c
+++ b/sound/soc/fsl/mpc5200_psc_i2s.c
@@ -504,7 +504,8 @@ static struct snd_soc_dai psc_i2s_dai_template = {
 
 static const struct snd_pcm_hardware psc_i2s_pcm_hardware = {
 	.info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
-		SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER,
+		SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER |
+		SNDRV_PCM_INFO_BATCH,
 	.formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_BE |
 		   SNDRV_PCM_FMTBIT_S24_BE | SNDRV_PCM_FMTBIT_S32_BE,
 	.rate_min = 8000,
diff --git a/sound/soc/sh/dma-sh7760.c b/sound/soc/sh/dma-sh7760.c
index 0dad3a0bb92018751b9101d5020cf32f1f0d2db2..baddb1242c715d26dfdfe08aeec0557a6f22fe7e 100644
--- a/sound/soc/sh/dma-sh7760.c
+++ b/sound/soc/sh/dma-sh7760.c
@@ -103,7 +103,8 @@ static struct snd_pcm_hardware camelot_pcm_hardware = {
 	.info = (SNDRV_PCM_INFO_MMAP |
 		SNDRV_PCM_INFO_INTERLEAVED |
 		SNDRV_PCM_INFO_BLOCK_TRANSFER |
-		SNDRV_PCM_INFO_MMAP_VALID),
+		SNDRV_PCM_INFO_MMAP_VALID |
+		SNDRV_PCM_INFO_BATCH),
 	.formats =	DMABRG_FMTS,
 	.rates =	DMABRG_RATES,
 	.rate_min =		8000,
diff --git a/sound/sparc/dbri.c b/sound/sparc/dbri.c
index af95ff1e126cc39a83d0e833fb0d126c334e6278..1d2e51b3f9184cc66881e370d73b8452ae42266c 100644
--- a/sound/sparc/dbri.c
+++ b/sound/sparc/dbri.c
@@ -1975,7 +1975,8 @@ static struct snd_pcm_hardware snd_dbri_pcm_hw = {
 	.info		= SNDRV_PCM_INFO_MMAP |
 			  SNDRV_PCM_INFO_INTERLEAVED |
 			  SNDRV_PCM_INFO_BLOCK_TRANSFER |
-			  SNDRV_PCM_INFO_MMAP_VALID,
+			  SNDRV_PCM_INFO_MMAP_VALID |
+			  SNDRV_PCM_INFO_BATCH,
 	.formats	= SNDRV_PCM_FMTBIT_MU_LAW |
 			  SNDRV_PCM_FMTBIT_A_LAW |
 			  SNDRV_PCM_FMTBIT_U8 |
diff --git a/sound/usb/usx2y/usbusx2yaudio.c b/sound/usb/usx2y/usbusx2yaudio.c
index 9a608fa85155c530019efcc56d8ca86cfb0195fa..dd1ab6177840b039437d3b516794d23dd096fe23 100644
--- a/sound/usb/usx2y/usbusx2yaudio.c
+++ b/sound/usb/usx2y/usbusx2yaudio.c
@@ -870,7 +870,8 @@ static struct snd_pcm_hardware snd_usX2Y_2c =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
-				 SNDRV_PCM_INFO_MMAP_VALID),
+				 SNDRV_PCM_INFO_MMAP_VALID |
+				 SNDRV_PCM_INFO_BATCH),
 	.formats =                 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_3LE,
 	.rates =                   SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
 	.rate_min =                44100,