Merge master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6

Conflicts:

	drivers/usb/input/Makefile
	drivers/usb/input/gtco.c

33 files changed, 681 insertions, 258 deletions

diff --git a/sound/aoa/codecs/snd-aoa-codec-onyx.c b/sound/aoa/codecs/snd-aoa-codec-onyx.c
index b00fc4842c9..7f980be5d06 100644
--- a/sound/aoa/codecs/snd-aoa-codec-onyx.c
+++ b/sound/aoa/codecs/snd-aoa-codec-onyx.c
@@ -1062,9 +1062,9 @@ static int onyx_i2c_attach(struct i2c_adapter *adapter)
 
 	while ((dev = of_get_next_child(busnode, dev)) != NULL) {
 		if (device_is_compatible(dev, "pcm3052")) {
-			u32 *addr;
+			const u32 *addr;
 			printk(KERN_DEBUG PFX "found pcm3052\n");
-			addr = (u32 *) get_property(dev, "reg", NULL);
+			addr = of_get_property(dev, "reg", NULL);
 			if (!addr)
 				return -ENODEV;
 			return onyx_create(adapter, dev, (*addr)>>1);
diff --git a/sound/aoa/codecs/snd-aoa-codec-tas.c b/sound/aoa/codecs/snd-aoa-codec-tas.c
index 2cd81fa07ce..ceca38486ea 100644
--- a/sound/aoa/codecs/snd-aoa-codec-tas.c
+++ b/sound/aoa/codecs/snd-aoa-codec-tas.c
@@ -939,9 +939,9 @@ static int tas_i2c_attach(struct i2c_adapter *adapter)
 
 	while ((dev = of_get_next_child(busnode, dev)) != NULL) {
 		if (device_is_compatible(dev, "tas3004")) {
-			u32 *addr;
+			const u32 *addr;
 			printk(KERN_DEBUG PFX "found tas3004\n");
-			addr = (u32 *) get_property(dev, "reg", NULL);
+			addr = of_get_property(dev, "reg", NULL);
 			if (!addr)
 				continue;
 			return tas_create(adapter, dev, ((*addr) >> 1) & 0x7f);
@@ -950,9 +950,10 @@ static int tas_i2c_attach(struct i2c_adapter *adapter)
 		 * property that says 'tas3004', they just have a 'deq'
 		 * node without any such property... */
 		if (strcmp(dev->name, "deq") == 0) {
-			u32 *_addr, addr;
+			const u32 *_addr;
+			u32 addr;
 			printk(KERN_DEBUG PFX "found 'deq' node\n");
-			_addr = (u32 *) get_property(dev, "i2c-address", NULL);
+			_addr = of_get_property(dev, "i2c-address", NULL);
 			if (!_addr)
 				continue;
 			addr = ((*_addr) >> 1) & 0x7f;
diff --git a/sound/aoa/core/snd-aoa-gpio-feature.c b/sound/aoa/core/snd-aoa-gpio-feature.c
index 2b03bc798bc..805dcbff225 100644
--- a/sound/aoa/core/snd-aoa-gpio-feature.c
+++ b/sound/aoa/core/snd-aoa-gpio-feature.c
@@ -55,7 +55,7 @@ static struct device_node *get_gpio(char *name,
 				    int *gpioactiveptr)
 {
 	struct device_node *np, *gpio;
-	u32 *reg;
+	const u32 *reg;
 	const char *audio_gpio;
 
 	*gpioptr = -1;
@@ -71,7 +71,7 @@ static struct device_node *get_gpio(char *name,
 		if (!gpio)
 			return NULL;
 		while ((np = of_get_next_child(gpio, np))) {
-			audio_gpio = get_property(np, "audio-gpio", NULL);
+			audio_gpio = of_get_property(np, "audio-gpio", NULL);
 			if (!audio_gpio)
 				continue;
 			if (strcmp(audio_gpio, name) == 0)
@@ -84,7 +84,7 @@ static struct device_node *get_gpio(char *name,
 			return NULL;
 	}
 
-	reg = (u32 *)get_property(np, "reg", NULL);
+	reg = of_get_property(np, "reg", NULL);
 	if (!reg)
 		return NULL;
 
@@ -96,7 +96,7 @@ static struct device_node *get_gpio(char *name,
 	if (*gpioptr < 0x50)
 		*gpioptr += 0x50;
 
-	reg = (u32 *)get_property(np, "audio-gpio-active-state", NULL);
+	reg = of_get_property(np, "audio-gpio-active-state", NULL);
 	if (!reg)
 		/* Apple seems to default to 1, but
 		 * that doesn't seem right at least on most
diff --git a/sound/aoa/fabrics/snd-aoa-fabric-layout.c b/sound/aoa/fabrics/snd-aoa-fabric-layout.c
index 1b94ba6dd27..98806283d1b 100644
--- a/sound/aoa/fabrics/snd-aoa-fabric-layout.c
+++ b/sound/aoa/fabrics/snd-aoa-fabric-layout.c
@@ -724,7 +724,7 @@ static int check_codec(struct aoa_codec *codec,
 		       struct layout_dev *ldev,
 		       struct codec_connect_info *cci)
 {
-	u32 *ref;
+	const u32 *ref;
 	char propname[32];
 	struct codec_connection *cc;
 
@@ -732,7 +732,7 @@ static int check_codec(struct aoa_codec *codec,
 	if (codec->node && (strcmp(codec->node->name, "codec") == 0)) {
 		snprintf(propname, sizeof(propname),
 			 "platform-%s-codec-ref", codec->name);
-		ref = (u32*)get_property(ldev->sound, propname, NULL);
+		ref = of_get_property(ldev->sound, propname, NULL);
 		if (!ref) {
 			printk(KERN_INFO "snd-aoa-fabric-layout: "
 				"required property %s not present\n", propname);
@@ -946,7 +946,7 @@ static struct aoa_fabric layout_fabric = {
 static int aoa_fabric_layout_probe(struct soundbus_dev *sdev)
 {
 	struct device_node *sound = NULL;
-	unsigned int *layout_id;
+	const unsigned int *layout_id;
 	struct layout *layout;
 	struct layout_dev *ldev = NULL;
 	int err;
@@ -962,7 +962,7 @@ static int aoa_fabric_layout_probe(struct soundbus_dev *sdev)
 	}
 	if (!sound) return -ENODEV;
 
-	layout_id = (unsigned int *) get_property(sound, "layout-id", NULL);
+	layout_id = of_get_property(sound, "layout-id", NULL);
 	if (!layout_id)
 		goto outnodev;
 	printk(KERN_INFO "snd-aoa-fabric-layout: found bus with layout %d\n",
diff --git a/sound/aoa/soundbus/core.c b/sound/aoa/soundbus/core.c
index 47b3e3768df..8b2e9b905cd 100644
--- a/sound/aoa/soundbus/core.c
+++ b/sound/aoa/soundbus/core.c
@@ -61,9 +61,9 @@ static int soundbus_uevent(struct device *dev, char **envp, int num_envp,
 {
 	struct soundbus_dev * soundbus_dev;
 	struct of_device * of;
-	char *scratch, *compat, *compat2;
-	int i = 0;
-	int length, cplen, cplen2, seen = 0;
+	const char *compat;
+	int retval = 0, i = 0, length = 0;
+	int cplen, seen = 0;
 
 	if (!dev)
 		return -ENODEV;
@@ -75,63 +75,47 @@ static int soundbus_uevent(struct device *dev, char **envp, int num_envp,
 	of = &soundbus_dev->ofdev;
 
 	/* stuff we want to pass to /sbin/hotplug */
-	envp[i++] = scratch = buffer;
-	length = scnprintf (scratch, buffer_size, "OF_NAME=%s", of->node->name);
-	++length;
-	buffer_size -= length;
-	if ((buffer_size <= 0) || (i >= num_envp))
-		return -ENOMEM;
-	scratch += length;
-
-	envp[i++] = scratch;
-	length = scnprintf (scratch, buffer_size, "OF_TYPE=%s", of->node->type);
-	++length;
-	buffer_size -= length;
-	if ((buffer_size <= 0) || (i >= num_envp))
-		return -ENOMEM;
-	scratch += length;
+	retval = add_uevent_var(envp, num_envp, &i,
+				buffer, buffer_size, &length,
+				"OF_NAME=%s", of->node->name);
+	if (retval)
+		return retval;
+
+	retval = add_uevent_var(envp, num_envp, &i,
+				buffer, buffer_size, &length,
+				"OF_TYPE=%s", of->node->type);
+	if (retval)
+		return retval;
 
 	/* Since the compatible field can contain pretty much anything
 	 * it's not really legal to split it out with commas. We split it
 	 * up using a number of environment variables instead. */
 
-	compat = (char *) get_property(of->node, "compatible", &cplen);
-	compat2 = compat;
-	cplen2= cplen;
+	compat = of_get_property(of->node, "compatible", &cplen);
 	while (compat && cplen > 0) {
-		envp[i++] = scratch;
-		length = scnprintf (scratch, buffer_size,
-				     "OF_COMPATIBLE_%d=%s", seen, compat);
-		++length;
-		buffer_size -= length;
-		if ((buffer_size <= 0) || (i >= num_envp))
-			return -ENOMEM;
-		scratch += length;
-		length = strlen (compat) + 1;
-		compat += length;
-		cplen -= length;
-		seen++;
+		int tmp = length;
+		retval = add_uevent_var(envp, num_envp, &i,
+					buffer, buffer_size, &length,
+					"OF_COMPATIBLE_%d=%s", seen, compat);
+		if (retval)
+			return retval;
+		compat += length - tmp;
+		cplen -= length - tmp;
+		seen += 1;
 	}
 
-	envp[i++] = scratch;
-	length = scnprintf (scratch, buffer_size, "OF_COMPATIBLE_N=%d", seen);
-	++length;
-	buffer_size -= length;
-	if ((buffer_size <= 0) || (i >= num_envp))
-		return -ENOMEM;
-	scratch += length;
-
-	envp[i++] = scratch;
-	length = scnprintf (scratch, buffer_size, "MODALIAS=%s",
-			soundbus_dev->modalias);
-
-	buffer_size -= length;
-	if ((buffer_size <= 0) || (i >= num_envp))
-		return -ENOMEM;
+	retval = add_uevent_var(envp, num_envp, &i,
+				buffer, buffer_size, &length,
+				"OF_COMPATIBLE_N=%d", seen);
+	if (retval)
+		return retval;
+	retval = add_uevent_var(envp, num_envp, &i,
+				buffer, buffer_size, &length,
+				"MODALIAS=%s", soundbus_dev->modalias);
 
 	envp[i] = NULL;
 
-	return 0;
+	return retval;
 }
 
 static int soundbus_device_remove(struct device *dev)
diff --git a/sound/aoa/soundbus/i2sbus/i2sbus-core.c b/sound/aoa/soundbus/i2sbus/i2sbus-core.c
index e36f6aa448d..79fc4bc09e5 100644
--- a/sound/aoa/soundbus/i2sbus/i2sbus-core.c
+++ b/sound/aoa/soundbus/i2sbus/i2sbus-core.c
@@ -122,7 +122,7 @@ static int i2sbus_get_and_fixup_rsrc(struct device_node *np, int index,
 {
 	struct device_node *parent;
 	int pindex, rc = -ENXIO;
-	u32 *reg;
+	const u32 *reg;
 
 	/* Machines with layout 76 and 36 (K2 based) have a weird device
 	 * tree what we need to special case.
@@ -141,7 +141,7 @@ static int i2sbus_get_and_fixup_rsrc(struct device_node *np, int index,
 	rc = of_address_to_resource(parent, pindex, res);
 	if (rc)
 		goto bail;
-	reg = (u32 *)get_property(np, "reg", NULL);
+	reg = of_get_property(np, "reg", NULL);
 	if (reg == NULL) {
 		rc = -ENXIO;
 		goto bail;
@@ -188,8 +188,8 @@ static int i2sbus_add_dev(struct macio_dev *macio,
 		}
 	}
 	if (i == 1) {
-		u32 *layout_id;
-		layout_id = (u32*) get_property(sound, "layout-id", NULL);
+		const u32 *layout_id =
+			of_get_property(sound, "layout-id", NULL);
 		if (layout_id) {
 			layout = *layout_id;
 			snprintf(dev->sound.modalias, 32,
diff --git a/sound/arm/aaci.c b/sound/arm/aaci.c
index 53675cf4de4..b9eca9f3dd2 100644
--- a/sound/arm/aaci.c
+++ b/sound/arm/aaci.c
@@ -65,10 +65,12 @@ static void aaci_ac97_select_codec(struct aaci *aaci, struct snd_ac97 *ac97)
  *  SI1TxEn, SI2TxEn and SI12TxEn bits are set in the AACI_MAINCR
  *  register.
  */
-static void aaci_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val)
+static void aaci_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
+			    unsigned short val)
 {
 	struct aaci *aaci = ac97->private_data;
 	u32 v;
+	int timeout = 5000;
 
 	if (ac97->num >= 4)
 		return;
@@ -89,7 +91,11 @@ static void aaci_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned
 	 */
 	do {
 		v = readl(aaci->base + AACI_SLFR);
-	} while (v & (SLFR_1TXB|SLFR_2TXB));
+	} while ((v & (SLFR_1TXB|SLFR_2TXB)) && timeout--);
+
+	if (!timeout)
+		dev_err(&aaci->dev->dev,
+			"timeout waiting for write to complete\n");
 
 	mutex_unlock(&aaci->ac97_sem);
 }
@@ -101,6 +107,8 @@ static unsigned short aaci_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
 {
 	struct aaci *aaci = ac97->private_data;
 	u32 v;
+	int timeout = 5000;
+	int retries = 10;
 
 	if (ac97->num >= 4)
 		return ~0;
@@ -119,7 +127,13 @@ static unsigned short aaci_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
 	 */
 	do {
 		v = readl(aaci->base + AACI_SLFR);
-	} while (v & SLFR_1TXB);
+	} while ((v & SLFR_1TXB) && timeout--);
+
+	if (!timeout) {
+		dev_err(&aaci->dev->dev, "timeout on slot 1 TX busy\n");
+		v = ~0;
+		goto out;
+	}
 
 	/*
 	 * Give the AC'97 codec more than enough time
@@ -130,21 +144,35 @@ static unsigned short aaci_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
 	/*
 	 * Wait for slot 2 to indicate data.
 	 */
+	timeout = 5000;
 	do {
 		cond_resched();
 		v = readl(aaci->base + AACI_SLFR) & (SLFR_1RXV|SLFR_2RXV);
-	} while (v != (SLFR_1RXV|SLFR_2RXV));
+	} while ((v != (SLFR_1RXV|SLFR_2RXV)) && timeout--);
 
-	v = readl(aaci->base + AACI_SL1RX) >> 12;
-	if (v == reg) {
-		v = readl(aaci->base + AACI_SL2RX) >> 4;
-	} else {
-		dev_err(&aaci->dev->dev,
-			"wrong ac97 register read back (%x != %x)\n",
-			v, reg);
+	if (!timeout) {
+		dev_err(&aaci->dev->dev, "timeout on RX valid\n");
 		v = ~0;
+		goto out;
 	}
 
+	do {
+		v = readl(aaci->base + AACI_SL1RX) >> 12;
+		if (v == reg) {
+			v = readl(aaci->base + AACI_SL2RX) >> 4;
+			break;
+		} else if (--retries) {
+			dev_warn(&aaci->dev->dev,
+				 "ac97 read back fail.  retry\n");
+			continue;
+		} else {
+			dev_warn(&aaci->dev->dev,
+				"wrong ac97 register read back (%x != %x)\n",
+				v, reg);
+			v = ~0;
+		}
+	} while (retries);
+ out:
 	mutex_unlock(&aaci->ac97_sem);
 	return v;
 }
@@ -164,10 +192,70 @@ static inline void aaci_chan_wait_ready(struct aaci_runtime *aacirun)
 /*
  * Interrupt support.
  */
-static void aaci_fifo_irq(struct aaci *aaci, u32 mask)
+static void aaci_fifo_irq(struct aaci *aaci, int channel, u32 mask)
 {
+	if (mask & ISR_ORINTR) {
+		dev_warn(&aaci->dev->dev, "RX overrun on chan %d\n", channel);
+		writel(ICLR_RXOEC1 << channel, aaci->base + AACI_INTCLR);
+	}
+
+	if (mask & ISR_RXTOINTR) {
+		dev_warn(&aaci->dev->dev, "RX timeout on chan %d\n", channel);
+		writel(ICLR_RXTOFEC1 << channel, aaci->base + AACI_INTCLR);
+	}
+
+	if (mask & ISR_RXINTR) {
+		struct aaci_runtime *aacirun = &aaci->capture;
+		void *ptr;
+
+		if (!aacirun->substream || !aacirun->start) {
+			dev_warn(&aaci->dev->dev, "RX interrupt???");
+			writel(0, aacirun->base + AACI_IE);
+			return;
+		}
+		ptr = aacirun->ptr;
+
+		do {
+			unsigned int len = aacirun->fifosz;
+			u32 val;
+
+			if (aacirun->bytes <= 0) {
+				aacirun->bytes += aacirun->period;
+				aacirun->ptr = ptr;
+				spin_unlock(&aaci->lock);
+				snd_pcm_period_elapsed(aacirun->substream);
+				spin_lock(&aaci->lock);
+			}
+			if (!(aacirun->cr & CR_EN))
+				break;
+
+			val = readl(aacirun->base + AACI_SR);
+			if (!(val & SR_RXHF))
+				break;
+			if (!(val & SR_RXFF))
+				len >>= 1;
+
+			aacirun->bytes -= len;
+
+			/* reading 16 bytes at a time */
+			for( ; len > 0; len -= 16) {
+				asm(
+					"ldmia	%1, {r0, r1, r2, r3}\n\t"
+					"stmia	%0!, {r0, r1, r2, r3}"
+					: "+r" (ptr)
+					: "r" (aacirun->fifo)
+					: "r0", "r1", "r2", "r3", "cc");
+
+				if (ptr >= aacirun->end)
+					ptr = aacirun->start;
+			}
+		} while(1);
+		aacirun->ptr = ptr;
+	}
+
 	if (mask & ISR_URINTR) {
-		writel(ICLR_TXUEC1, aaci->base + AACI_INTCLR);
+		dev_dbg(&aaci->dev->dev, "TX underrun on chan %d\n", channel);
+		writel(ICLR_TXUEC1 << channel, aaci->base + AACI_INTCLR);
 	}
 
 	if (mask & ISR_TXINTR) {
@@ -192,7 +280,7 @@ static void aaci_fifo_irq(struct aaci *aaci, u32 mask)
 				snd_pcm_period_elapsed(aacirun->substream);
 				spin_lock(&aaci->lock);
 			}
-			if (!(aacirun->cr & TXCR_TXEN))
+			if (!(aacirun->cr & CR_EN))
 				break;
 
 			val = readl(aacirun->base + AACI_SR);
@@ -233,7 +321,7 @@ static irqreturn_t aaci_irq(int irq, void *devid)
 		u32 m = mask;
 		for (i = 0; i < 4; i++, m >>= 7) {
 			if (m & 0x7f) {
-				aaci_fifo_irq(aaci, m);
+				aaci_fifo_irq(aaci, i, m);
 			}
 		}
 	}
@@ -330,8 +418,9 @@ static struct snd_pcm_hardware aaci_hw_info = {
 	.periods_max		= PAGE_SIZE / 16,
 };
 
-static int aaci_pcm_open(struct aaci *aaci, struct snd_pcm_substream *substream,
-			 struct aaci_runtime *aacirun)
+static int __aaci_pcm_open(struct aaci *aaci,
+			   struct snd_pcm_substream *substream,
+			   struct aaci_runtime *aacirun)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	int ret;
@@ -380,7 +469,7 @@ static int aaci_pcm_close(struct snd_pcm_substream *substream)
 	struct aaci *aaci = substream->private_data;
 	struct aaci_runtime *aacirun = substream->runtime->private_data;
 
-	WARN_ON(aacirun->cr & TXCR_TXEN);
+	WARN_ON(aacirun->cr & CR_EN);
 
 	aacirun->substream = NULL;
 	free_irq(aaci->dev->irq[0], aaci);
@@ -395,7 +484,7 @@ static int aaci_pcm_hw_free(struct snd_pcm_substream *substream)
 	/*
 	 * This must not be called with the device enabled.
 	 */
-	WARN_ON(aacirun->cr & TXCR_TXEN);
+	WARN_ON(aacirun->cr & CR_EN);
 
 	if (aacirun->pcm_open)
 		snd_ac97_pcm_close(aacirun->pcm);
@@ -422,9 +511,15 @@ static int aaci_pcm_hw_params(struct snd_pcm_substream *substream,
 	if (err < 0)
 		goto out;
 
-	err = snd_ac97_pcm_open(aacirun->pcm, params_rate(params),
-				params_channels(params),
-				aacirun->pcm->r[0].slots);
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+		err = snd_ac97_pcm_open(aacirun->pcm, params_rate(params),
+					params_channels(params),
+					aacirun->pcm->r[0].slots);
+	else
+		err = snd_ac97_pcm_open(aacirun->pcm, params_rate(params),
+					params_channels(params),
+					aacirun->pcm->r[1].slots);
+
 	if (err)
 		goto out;
 
@@ -467,9 +562,9 @@ static int aaci_pcm_mmap(struct snd_pcm_substream *substream, struct vm_area_str
  * Playback specific ALSA stuff
  */
 static const u32 channels_to_txmask[] = {
-	[2] = TXCR_TX3 | TXCR_TX4,
-	[4] = TXCR_TX3 | TXCR_TX4 | TXCR_TX7 | TXCR_TX8,
-	[6] = TXCR_TX3 | TXCR_TX4 | TXCR_TX7 | TXCR_TX8 | TXCR_TX6 | TXCR_TX9,
+	[2] = CR_SL3 | CR_SL4,
+	[4] = CR_SL3 | CR_SL4 | CR_SL7 | CR_SL8,
+	[6] = CR_SL3 | CR_SL4 | CR_SL7 | CR_SL8 | CR_SL6 | CR_SL9,
 };
 
 /*
@@ -504,7 +599,7 @@ aaci_rule_channels(struct snd_pcm_hw_params *p, struct snd_pcm_hw_rule *rule)
 				 chan_mask);
 }
 
-static int aaci_pcm_playback_open(struct snd_pcm_substream *substream)
+static int aaci_pcm_open(struct snd_pcm_substream *substream)
 {
 	struct aaci *aaci = substream->private_data;
 	int ret;
@@ -519,7 +614,12 @@ static int aaci_pcm_playback_open(struct snd_pcm_substream *substream)
 	if (ret)
 		return ret;
 
-	return aaci_pcm_open(aaci, substream, &aaci->playback);
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		ret = __aaci_pcm_open(aaci, substream, &aaci->playback);
+	} else {
+		ret = __aaci_pcm_open(aaci, substream, &aaci->capture);
+	}
+	return ret;
 }
 
 static int aaci_pcm_playback_hw_params(struct snd_pcm_substream *substream,
@@ -540,11 +640,11 @@ static int aaci_pcm_playback_hw_params(struct snd_pcm_substream *substream,
 	 * FIXME: double rate slots?
 	 */
 	if (ret >= 0) {
-		aacirun->cr = TXCR_FEN | TXCR_COMPACT | TXCR_TSZ16;
+		aacirun->cr = CR_FEN | CR_COMPACT | CR_SZ16;
 		aacirun->cr |= channels_to_txmask[channels];
 
 		aacirun->fifosz	= aaci->fifosize * 4;
-		if (aacirun->cr & TXCR_COMPACT)
+		if (aacirun->cr & CR_COMPACT)
 			aacirun->fifosz >>= 1;
 	}
 	return ret;
@@ -557,7 +657,7 @@ static void aaci_pcm_playback_stop(struct aaci_runtime *aacirun)
 	ie = readl(aacirun->base + AACI_IE);
 	ie &= ~(IE_URIE|IE_TXIE);
 	writel(ie, aacirun->base + AACI_IE);
-	aacirun->cr &= ~TXCR_TXEN;
+	aacirun->cr &= ~CR_EN;
 	aaci_chan_wait_ready(aacirun);
 	writel(aacirun->cr, aacirun->base + AACI_TXCR);
 }
@@ -567,7 +667,7 @@ static void aaci_pcm_playback_start(struct aaci_runtime *aacirun)
 	u32 ie;
 
 	aaci_chan_wait_ready(aacirun);
-	aacirun->cr |= TXCR_TXEN;
+	aacirun->cr |= CR_EN;
 
 	ie = readl(aacirun->base + AACI_IE);
 	ie |= IE_URIE | IE_TXIE;
@@ -615,7 +715,7 @@ static int aaci_pcm_playback_trigger(struct snd_pcm_substream *substream, int cm
 }
 
 static struct snd_pcm_ops aaci_playback_ops = {
-	.open		= aaci_pcm_playback_open,
+	.open		= aaci_pcm_open,
 	.close		= aaci_pcm_close,
 	.ioctl		= snd_pcm_lib_ioctl,
 	.hw_params	= aaci_pcm_playback_hw_params,
@@ -626,7 +726,133 @@ static struct snd_pcm_ops aaci_playback_ops = {
 	.mmap		= aaci_pcm_mmap,
 };
 
+static int aaci_pcm_capture_hw_params(struct snd_pcm_substream *substream,
+				      struct snd_pcm_hw_params *params)
+{
+	struct aaci *aaci = substream->private_data;
+	struct aaci_runtime *aacirun = substream->runtime->private_data;
+	int ret;
+
+	ret = aaci_pcm_hw_params(substream, aacirun, params);
+
+	if (ret >= 0) {
+		aacirun->cr = CR_FEN | CR_COMPACT | CR_SZ16;
+
+		/* Line in record: slot 3 and 4 */
+		aacirun->cr |= CR_SL3 | CR_SL4;
+
+		aacirun->fifosz = aaci->fifosize * 4;
+
+		if (aacirun->cr & CR_COMPACT)
+			aacirun->fifosz >>= 1;
+	}
+	return ret;
+}
+
+static void aaci_pcm_capture_stop(struct aaci_runtime *aacirun)
+{
+	u32 ie;
+
+	aaci_chan_wait_ready(aacirun);
+
+	ie = readl(aacirun->base + AACI_IE);
+	ie &= ~(IE_ORIE | IE_RXIE);
+	writel(ie, aacirun->base+AACI_IE);
+
+	aacirun->cr &= ~CR_EN;
+
+	writel(aacirun->cr, aacirun->base + AACI_RXCR);
+}
+
+static void aaci_pcm_capture_start(struct aaci_runtime *aacirun)
+{
+	u32 ie;
+
+	aaci_chan_wait_ready(aacirun);
+
+#ifdef DEBUG
+	/* RX Timeout value: bits 28:17 in RXCR */
+	aacirun->cr |= 0xf << 17;
+#endif
+
+	aacirun->cr |= CR_EN;
+	writel(aacirun->cr, aacirun->base + AACI_RXCR);
+
+	ie = readl(aacirun->base + AACI_IE);
+	ie |= IE_ORIE |IE_RXIE; // overrun and rx interrupt -- half full
+	writel(ie, aacirun->base + AACI_IE);
+}
+
+static int aaci_pcm_capture_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+	struct aaci *aaci = substream->private_data;
+	struct aaci_runtime *aacirun = substream->runtime->private_data;
+	unsigned long flags;
+	int ret = 0;
+
+	spin_lock_irqsave(&aaci->lock, flags);
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+		aaci_pcm_capture_start(aacirun);
+		break;
+
+	case SNDRV_PCM_TRIGGER_RESUME:
+		aaci_pcm_capture_start(aacirun);
+		break;
+
+	case SNDRV_PCM_TRIGGER_STOP:
+		aaci_pcm_capture_stop(aacirun);
+		break;
+
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+		aaci_pcm_capture_stop(aacirun);
+		break;
+
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		break;
+
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		break;
+
+	default:
+		ret = -EINVAL;
+	}
+
+	spin_unlock_irqrestore(&aaci->lock, flags);
+
+	return ret;
+}
 
+static int aaci_pcm_capture_prepare(struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct aaci *aaci = substream->private_data;
+
+	aaci_pcm_prepare(substream);
+
+	/* allow changing of sample rate */
+	aaci_ac97_write(aaci->ac97, AC97_EXTENDED_STATUS, 0x0001); /* VRA */
+	aaci_ac97_write(aaci->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
+	aaci_ac97_write(aaci->ac97, AC97_PCM_MIC_ADC_RATE, runtime->rate);
+
+	/* Record select: Mic: 0, Aux: 3, Line: 4 */
+	aaci_ac97_write(aaci->ac97, AC97_REC_SEL, 0x0404);
+
+	return 0;
+}
+
+static struct snd_pcm_ops aaci_capture_ops = {
+	.open		= aaci_pcm_open,
+	.close		= aaci_pcm_close,
+	.ioctl		= snd_pcm_lib_ioctl,
+	.hw_params	= aaci_pcm_capture_hw_params,
+	.hw_free	= aaci_pcm_hw_free,
+	.prepare	= aaci_pcm_capture_prepare,
+	.trigger	= aaci_pcm_capture_trigger,
+	.pointer	= aaci_pcm_pointer,
+	.mmap		= aaci_pcm_mmap,
+};
 
 /*
  * Power Management.
@@ -666,7 +892,7 @@ static int aaci_resume(struct amba_device *dev)
 
 
 static struct ac97_pcm ac97_defs[] __devinitdata = {
-	[0] = {		/* Front PCM */
+	[0] = {	/* Front PCM */
 		.exclusive = 1,
 		.r = {
 			[0] = {
@@ -740,6 +966,7 @@ static int __devinit aaci_probe_ac97(struct aaci *aaci)
 	ret = snd_ac97_mixer(ac97_bus, &ac97_template, &ac97);
 	if (ret)
 		goto out;
+	aaci->ac97 = ac97;
 
 	/*
 	 * Disable AC97 PC Beep input on audio codecs.
@@ -752,6 +979,7 @@ static int __devinit aaci_probe_ac97(struct aaci *aaci)
 		goto out;
 
 	aaci->playback.pcm = &ac97_bus->pcms[0];
+	aaci->capture.pcm  = &ac97_bus->pcms[1];
 
  out:
 	return ret;
@@ -801,7 +1029,7 @@ static int __devinit aaci_init_pcm(struct aaci *aaci)
 	struct snd_pcm *pcm;
 	int ret;
 
-	ret = snd_pcm_new(aaci->card, "AACI AC'97", 0, 1, 0, &pcm);
+	ret = snd_pcm_new(aaci->card, "AACI AC'97", 0, 1, 1, &pcm);
 	if (ret == 0) {
 		aaci->pcm = pcm;
 		pcm->private_data = aaci;
@@ -810,6 +1038,7 @@ static int __devinit aaci_init_pcm(struct aaci *aaci)
 		strlcpy(pcm->name, DRIVER_NAME, sizeof(pcm->name));
 
 		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &aaci_playback_ops);
+		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &aaci_capture_ops);
 	}
 
 	return ret;
@@ -817,15 +1046,15 @@ static int __devinit aaci_init_pcm(struct aaci *aaci)
 
 static unsigned int __devinit aaci_size_fifo(struct aaci *aaci)
 {
-	void __iomem *base = aaci->base + AACI_CSCH1;
+	struct aaci_runtime *aacirun = &aaci->playback;
 	int i;
 
-	writel(TXCR_FEN | TXCR_TSZ16 | TXCR_TXEN, base + AACI_TXCR);
+	writel(CR_FEN | CR_SZ16 | CR_EN, aacirun->base + AACI_TXCR);
 
-	for (i = 0; !(readl(base + AACI_SR) & SR_TXFF) && i < 4096; i++)
-		writel(0, aaci->base + AACI_DR1);
+	for (i = 0; !(readl(aacirun->base + AACI_SR) & SR_TXFF) && i < 4096; i++)
+		writel(0, aacirun->fifo);
 
-	writel(0, base + AACI_TXCR);
+	writel(0, aacirun->base + AACI_TXCR);
 
 	/*
 	 * Re-initialise the AACI after the FIFO depth test, to
@@ -872,6 +1101,12 @@ static int __devinit aaci_probe(struct amba_device *dev, void *id)
 	aaci->playback.base = aaci->base + AACI_CSCH1;
 	aaci->playback.fifo = aaci->base + AACI_DR1;
 
+	/*
+	 * Capture uses AACI channel 0
+	 */
+	aaci->capture.base = aaci->base + AACI_CSCH1;
+	aaci->capture.fifo = aaci->base + AACI_DR1;
+
 	for (i = 0; i < 4; i++) {
 		void __iomem *base = aaci->base + i * 0x14;
 
@@ -907,7 +1142,7 @@ static int __devinit aaci_probe(struct amba_device *dev, void *id)
 	ret = snd_card_register(aaci->card);
 	if (ret == 0) {
 		dev_info(&dev->dev, "%s, fifo %d\n", aaci->card->longname,
-			aaci->fifosize);
+			 aaci->fifosize);
 		amba_set_drvdata(dev, aaci->card);
 		return ret;
 	}
diff --git a/sound/arm/aaci.h b/sound/arm/aaci.h
index 9175ff9ded0..924f69c1c44 100644
--- a/sound/arm/aaci.h
+++ b/sound/arm/aaci.h
@@ -49,27 +49,27 @@
 #define AACI_DR4	0x0f0	/* data read/written fifo 4 */
 
 /*
- * transmit fifo control register. P48
+ * TX/RX fifo control register (CR). P48
  */
-#define TXCR_FEN	(1 << 16)	/* fifo enable */
-#define TXCR_COMPACT	(1 << 15)	/* compact mode */
-#define TXCR_TSZ16	(0 << 13)