Merge branch 'topic/hda-cleanup' into for-next

6 files changed, 422 insertions, 394 deletions

diff --git a/sound/pci/hda/hda_auto_parser.c b/sound/pci/hda/hda_auto_parser.c
index dabe419..a979019 100644
--- a/sound/pci/hda/hda_auto_parser.c
+++ b/sound/pci/hda/hda_auto_parser.c
@@ -17,8 +17,6 @@
 #include "hda_local.h"
 #include "hda_auto_parser.h"
 
-#define SFX	"hda_codec: "
-
 /*
  * Helper for automatic pin configuration
  */
diff --git a/sound/pci/hda/hda_controller.c b/sound/pci/hda/hda_controller.c
index 875e0eb..06f39c1 100644
--- a/sound/pci/hda/hda_controller.c
+++ b/sound/pci/hda/hda_controller.c
@@ -27,6 +27,7 @@
 #include <linux/module.h>
 #include <linux/pm_runtime.h>
 #include <linux/slab.h>
+#include <linux/reboot.h>
 #include <sound/core.h>
 #include <sound/initval.h>
 #include "hda_priv.h"
@@ -152,11 +153,11 @@ static int azx_setup_controller(struct azx *chip, struct azx_dev *azx_dev)
 		      upper_32_bits(azx_dev->bdl.addr));
 
 	/* enable the position buffer */
-	if (chip->position_fix[0] != POS_FIX_LPIB ||
-	    chip->position_fix[1] != POS_FIX_LPIB) {
-		if (!(azx_readl(chip, DPLBASE) & ICH6_DPLBASE_ENABLE))
+	if (chip->get_position[0] != azx_get_pos_lpib ||
+	    chip->get_position[1] != azx_get_pos_lpib) {
+		if (!(azx_readl(chip, DPLBASE) & AZX_DPLBASE_ENABLE))
 			azx_writel(chip, DPLBASE,
-				(u32)chip->posbuf.addr | ICH6_DPLBASE_ENABLE);
+				(u32)chip->posbuf.addr | AZX_DPLBASE_ENABLE);
 	}
 
 	/* set the interrupt enable bits in the descriptor control register */
@@ -673,125 +674,40 @@ static int azx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 	return 0;
 }
 
-/* get the current DMA position with correction on VIA chips */
-static unsigned int azx_via_get_position(struct azx *chip,
-					 struct azx_dev *azx_dev)
+unsigned int azx_get_pos_lpib(struct azx *chip, struct azx_dev *azx_dev)
 {
-	unsigned int link_pos, mini_pos, bound_pos;
-	unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
-	unsigned int fifo_size;
-
-	link_pos = azx_sd_readl(chip, azx_dev, SD_LPIB);
-	if (azx_dev->substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		/* Playback, no problem using link position */
-		return link_pos;
-	}
-
-	/* Capture */
-	/* For new chipset,
-	 * use mod to get the DMA position just like old chipset
-	 */
-	mod_dma_pos = le32_to_cpu(*azx_dev->posbuf);
-	mod_dma_pos %= azx_dev->period_bytes;
-
-	/* azx_dev->fifo_size can't get FIFO size of in stream.
-	 * Get from base address + offset.
-	 */
-	fifo_size = readw(chip->remap_addr + VIA_IN_STREAM0_FIFO_SIZE_OFFSET);
-
-	if (azx_dev->insufficient) {
-		/* Link position never gather than FIFO size */
-		if (link_pos <= fifo_size)
-			return 0;
-
-		azx_dev->insufficient = 0;
-	}
-
-	if (link_pos <= fifo_size)
-		mini_pos = azx_dev->bufsize + link_pos - fifo_size;
-	else
-		mini_pos = link_pos - fifo_size;
-
-	/* Find nearest previous boudary */
-	mod_mini_pos = mini_pos % azx_dev->period_bytes;
-	mod_link_pos = link_pos % azx_dev->period_bytes;
-	if (mod_link_pos >= fifo_size)
-		bound_pos = link_pos - mod_link_pos;
-	else if (mod_dma_pos >= mod_mini_pos)
-		bound_pos = mini_pos - mod_mini_pos;
-	else {
-		bound_pos = mini_pos - mod_mini_pos + azx_dev->period_bytes;
-		if (bound_pos >= azx_dev->bufsize)
-			bound_pos = 0;
-	}
+	return azx_sd_readl(chip, azx_dev, SD_LPIB);
+}
+EXPORT_SYMBOL_GPL(azx_get_pos_lpib);
 
-	/* Calculate real DMA position we want */
-	return bound_pos + mod_dma_pos;
+unsigned int azx_get_pos_posbuf(struct azx *chip, struct azx_dev *azx_dev)
+{
+	return le32_to_cpu(*azx_dev->posbuf);
 }
+EXPORT_SYMBOL_GPL(azx_get_pos_posbuf);
 
 unsigned int azx_get_position(struct azx *chip,
-			      struct azx_dev *azx_dev,
-			      bool with_check)
+			      struct azx_dev *azx_dev)
 {
 	struct snd_pcm_substream *substream = azx_dev->substream;
-	struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
 	unsigned int pos;
 	int stream = substream->stream;
-	struct hda_pcm_stream *hinfo = apcm->hinfo[stream];
 	int delay = 0;
 
-	switch (chip->position_fix[stream]) {
-	case POS_FIX_LPIB:
-		/* read LPIB */
-		pos = azx_sd_readl(chip, azx_dev, SD_LPIB);
-		break;
-	case POS_FIX_VIACOMBO:
-		pos = azx_via_get_position(chip, azx_dev);
-		break;
-	default:
-		/* use the position buffer */
-		pos = le32_to_cpu(*azx_dev->posbuf);
-		if (with_check && chip->position_fix[stream] == POS_FIX_AUTO) {
-			if (!pos || pos == (u32)-1) {
-				dev_info(chip->card->dev,
-					 "Invalid position buffer, using LPIB read method instead.\n");
-				chip->position_fix[stream] = POS_FIX_LPIB;
-				pos = azx_sd_readl(chip, azx_dev, SD_LPIB);
-			} else
-				chip->position_fix[stream] = POS_FIX_POSBUF;
-		}
-		break;
-	}
+	if (chip->get_position[stream])
+		pos = chip->get_position[stream](chip, azx_dev);
+	else /* use the position buffer as default */
+		pos = azx_get_pos_posbuf(chip, azx_dev);
 
 	if (pos >= azx_dev->bufsize)
 		pos = 0;
 
-	/* calculate runtime delay from LPIB */
-	if (substream->runtime &&
-	    chip->position_fix[stream] == POS_FIX_POSBUF &&
-	    (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)) {
-		unsigned int lpib_pos = azx_sd_readl(chip, azx_dev, SD_LPIB);
-		if (stream == SNDRV_PCM_STREAM_PLAYBACK)
-			delay = pos - lpib_pos;
-		else
-			delay = lpib_pos - pos;
-		if (delay < 0) {
-			if (delay >= azx_dev->delay_negative_threshold)
-				delay = 0;
-			else
-				delay += azx_dev->bufsize;
-		}
-		if (delay >= azx_dev->period_bytes) {
-			dev_info(chip->card->dev,
-				 "Unstable LPIB (%d >= %d); disabling LPIB delay counting\n",
-				 delay, azx_dev->period_bytes);
-			delay = 0;
-			chip->driver_caps &= ~AZX_DCAPS_COUNT_LPIB_DELAY;
-		}
-		delay = bytes_to_frames(substream->runtime, delay);
-	}
-
 	if (substream->runtime) {
+		struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
+		struct hda_pcm_stream *hinfo = apcm->hinfo[stream];
+
+		if (chip->get_delay[stream])
+			delay += chip->get_delay[stream](chip, azx_dev, pos);
 		if (hinfo->ops.get_delay)
 			delay += hinfo->ops.get_delay(hinfo, apcm->codec,
 						      substream);
@@ -809,7 +725,7 @@ static snd_pcm_uframes_t azx_pcm_pointer(struct snd_pcm_substream *substream)
 	struct azx *chip = apcm->chip;
 	struct azx_dev *azx_dev = get_azx_dev(substream);
 	return bytes_to_frames(substream->runtime,
-			       azx_get_position(chip, azx_dev, false));
+			       azx_get_position(chip, azx_dev));
 }
 
 static int azx_get_wallclock_tstamp(struct snd_pcm_substream *substream,
@@ -1059,10 +975,10 @@ static void azx_init_cmd_io(struct azx *chip)
 	azx_writew(chip, CORBWP, 0);
 
 	/* reset the corb hw read pointer */
-	azx_writew(chip, CORBRP, ICH6_CORBRP_RST);
+	azx_writew(chip, CORBRP, AZX_CORBRP_RST);
 	if (!(chip->driver_caps & AZX_DCAPS_CORBRP_SELF_CLEAR)) {
 		for (timeout = 1000; timeout > 0; timeout--) {
-			if ((azx_readw(chip, CORBRP) & ICH6_CORBRP_RST) == ICH6_CORBRP_RST)
+			if ((azx_readw(chip, CORBRP) & AZX_CORBRP_RST) == AZX_CORBRP_RST)
 				break;
 			udelay(1);
 		}
@@ -1082,7 +998,7 @@ static void azx_init_cmd_io(struct azx *chip)
 	}
 
 	/* enable corb dma */
-	azx_writeb(chip, CORBCTL, ICH6_CORBCTL_RUN);
+	azx_writeb(chip, CORBCTL, AZX_CORBCTL_RUN);
 
 	/* RIRB set up */
 	chip->rirb.addr = chip->rb.addr + 2048;
@@ -1095,14 +1011,14 @@ static void azx_init_cmd_io(struct azx *chip)
 	/* set the rirb size to 256 entries (ULI requires explicitly) */
 	azx_writeb(chip, RIRBSIZE, 0x02);
 	/* reset the rirb hw write pointer */
-	azx_writew(chip, RIRBWP, ICH6_RIRBWP_RST);
+	azx_writew(chip, RIRBWP, AZX_RIRBWP_RST);
 	/* set N=1, get RIRB response interrupt for new entry */
 	if (chip->driver_caps & AZX_DCAPS_CTX_WORKAROUND)
 		azx_writew(chip, RINTCNT, 0xc0);
 	else
 		azx_writew(chip, RINTCNT, 1);
 	/* enable rirb dma and response irq */
-	azx_writeb(chip, RIRBCTL, ICH6_RBCTL_DMA_EN | ICH6_RBCTL_IRQ_EN);
+	azx_writeb(chip, RIRBCTL, AZX_RBCTL_DMA_EN | AZX_RBCTL_IRQ_EN);
 	spin_unlock_irq(&chip->reg_lock);
 }
 EXPORT_SYMBOL_GPL(azx_init_cmd_io);
@@ -1146,7 +1062,7 @@ static int azx_corb_send_cmd(struct hda_bus *bus, u32 val)
 		return -EIO;
 	}
 	wp++;
-	wp %= ICH6_MAX_CORB_ENTRIES;
+	wp %= AZX_MAX_CORB_ENTRIES;
 
 	rp = azx_readw(chip, CORBRP);
 	if (wp == rp) {
@@ -1164,7 +1080,7 @@ static int azx_corb_send_cmd(struct hda_bus *bus, u32 val)
 	return 0;
 }
 
-#define ICH6_RIRB_EX_UNSOL_EV	(1<<4)
+#define AZX_RIRB_EX_UNSOL_EV	(1<<4)
 
 /* retrieve RIRB entry - called from interrupt handler */
 static void azx_update_rirb(struct azx *chip)
@@ -1185,7 +1101,7 @@ static void azx_update_rirb(struct azx *chip)
 
 	while (chip->rirb.rp != wp) {
 		chip->rirb.rp++;
-		chip->rirb.rp %= ICH6_MAX_RIRB_ENTRIES;
+		chip->rirb.rp %= AZX_MAX_RIRB_ENTRIES;
 
 		rp = chip->rirb.rp << 1; /* an RIRB entry is 8-bytes */
 		res_ex = le32_to_cpu(chip->rirb.buf[rp + 1]);
@@ -1196,8 +1112,7 @@ static void azx_update_rirb(struct azx *chip)
 				res, res_ex,
 				chip->rirb.rp, wp);
 			snd_BUG();
-		}
-		else if (res_ex & ICH6_RIRB_EX_UNSOL_EV)
+		} else if (res_ex & AZX_RIRB_EX_UNSOL_EV)
 			snd_hda_queue_unsol_event(chip->bus, res, res_ex);
 		else if (chip->rirb.cmds[addr]) {
 			chip->rirb.res[addr] = res;
@@ -1305,7 +1220,7 @@ static unsigned int azx_rirb_get_response(struct hda_bus *bus,
 	/* release CORB/RIRB */
 	azx_free_cmd_io(chip);
 	/* disable unsolicited responses */
-	azx_writel(chip, GCTL, azx_readl(chip, GCTL) & ~ICH6_GCTL_UNSOL);
+	azx_writel(chip, GCTL, azx_readl(chip, GCTL) & ~AZX_GCTL_UNSOL);
 	return -1;
 }
 
@@ -1326,7 +1241,7 @@ static int azx_single_wait_for_response(struct azx *chip, unsigned int addr)
 
 	while (timeout--) {
 		/* check IRV busy bit */
-		if (azx_readw(chip, IRS) & ICH6_IRS_VALID) {
+		if (azx_readw(chip, IRS) & AZX_IRS_VALID) {
 			/* reuse rirb.res as the response return value */
 			chip->rirb.res[addr] = azx_readl(chip, IR);
 			return 0;
@@ -1350,13 +1265,13 @@ static int azx_single_send_cmd(struct hda_bus *bus, u32 val)
 	bus->rirb_error = 0;
 	while (timeout--) {
 		/* check ICB busy bit */
-		if (!((azx_readw(chip, IRS) & ICH6_IRS_BUSY))) {
+		if (!((azx_readw(chip, IRS) & AZX_IRS_BUSY))) {
 			/* Clear IRV valid bit */
 			azx_writew(chip, IRS, azx_readw(chip, IRS) |
-				   ICH6_IRS_VALID);
+				   AZX_IRS_VALID);
 			azx_writel(chip, IC, val);
 			azx_writew(chip, IRS, azx_readw(chip, IRS) |
-				   ICH6_IRS_BUSY);
+				   AZX_IRS_BUSY);
 			return azx_single_wait_for_response(chip, addr);
 		}
 		udelay(1);
@@ -1585,10 +1500,10 @@ void azx_enter_link_reset(struct azx *chip)
 	unsigned long timeout;
 
 	/* reset controller */
-	azx_writel(chip, GCTL, azx_readl(chip, GCTL) & ~ICH6_GCTL_RESET);
+	azx_writel(chip, GCTL, azx_readl(chip, GCTL) & ~AZX_GCTL_RESET);
 
 	timeout = jiffies + msecs_to_jiffies(100);
-	while ((azx_readb(chip, GCTL) & ICH6_GCTL_RESET) &&
+	while ((azx_readb(chip, GCTL) & AZX_GCTL_RESET) &&
 			time_before(jiffies, timeout))
 		usleep_range(500, 1000);
 }
@@ -1599,7 +1514,7 @@ static void azx_exit_link_reset(struct azx *chip)
 {
 	unsigned long timeout;
 
-	azx_writeb(chip, GCTL, azx_readb(chip, GCTL) | ICH6_GCTL_RESET);
+	azx_writeb(chip, GCTL, azx_readb(chip, GCTL) | AZX_GCTL_RESET);
 
 	timeout = jiffies + msecs_to_jiffies(100);
 	while (!azx_readb(chip, GCTL) &&
@@ -1640,7 +1555,7 @@ static int azx_reset(struct azx *chip, bool full_reset)
 	/* Accept unsolicited responses */
 	if (!chip->single_cmd)
 		azx_writel(chip, GCTL, azx_readl(chip, GCTL) |
-			   ICH6_GCTL_UNSOL);
+			   AZX_GCTL_UNSOL);
 
 	/* detect codecs */
 	if (!chip->codec_mask) {
@@ -1657,7 +1572,7 @@ static void azx_int_enable(struct azx *chip)
 {
 	/* enable controller CIE and GIE */
 	azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) |
-		   ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN);
+		   AZX_INT_CTRL_EN | AZX_INT_GLOBAL_EN);
 }
 
 /* disable interrupts */
@@ -1678,7 +1593,7 @@ static void azx_int_disable(struct azx *chip)
 
 	/* disable controller CIE and GIE */
 	azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) &
-		   ~(ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN));
+		   ~(AZX_INT_CTRL_EN | AZX_INT_GLOBAL_EN));
 }
 
 /* clear interrupts */
@@ -1699,7 +1614,7 @@ static void azx_int_clear(struct azx *chip)
 	azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
 
 	/* clear int status */
-	azx_writel(chip, INTSTS, ICH6_INT_CTRL_EN | ICH6_INT_ALL_STREAM);
+	azx_writel(chip, INTSTS, AZX_INT_CTRL_EN | AZX_INT_ALL_STREAM);
 }
 
 /*
@@ -2031,5 +1946,30 @@ int azx_init_stream(struct azx *chip)
 }
 EXPORT_SYMBOL_GPL(azx_init_stream);
 
+/*
+ * reboot notifier for hang-up problem at power-down
+ */
+static int azx_halt(struct notifier_block *nb, unsigned long event, void *buf)
+{
+	struct azx *chip = container_of(nb, struct azx, reboot_notifier);
+	snd_hda_bus_reboot_notify(chip->bus);
+	azx_stop_chip(chip);
+	return NOTIFY_OK;
+}
+
+void azx_notifier_register(struct azx *chip)
+{
+	chip->reboot_notifier.notifier_call = azx_halt;
+	register_reboot_notifier(&chip->reboot_notifier);
+}
+EXPORT_SYMBOL_GPL(azx_notifier_register);
+
+void azx_notifier_unregister(struct azx *chip)
+{
+	if (chip->reboot_notifier.notifier_call)
+		unregister_reboot_notifier(&chip->reboot_notifier);
+}
+EXPORT_SYMBOL_GPL(azx_notifier_unregister);
+
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Common HDA driver funcitons");
diff --git a/sound/pci/hda/hda_controller.h b/sound/pci/hda/hda_controller.h
index baf0e77..c90d10f 100644
--- a/sound/pci/hda/hda_controller.h
+++ b/sound/pci/hda/hda_controller.h
@@ -25,9 +25,9 @@ static inline struct azx_dev *get_azx_dev(struct snd_pcm_substream *substream)
 {
 	return substream->runtime->private_data;
 }
-unsigned int azx_get_position(struct azx *chip,
-			      struct azx_dev *azx_dev,
-			      bool with_check);
+unsigned int azx_get_position(struct azx *chip, struct azx_dev *azx_dev);
+unsigned int azx_get_pos_lpib(struct azx *chip, struct azx_dev *azx_dev);
+unsigned int azx_get_pos_posbuf(struct azx *chip, struct azx_dev *azx_dev);
 
 /* Stream control. */
 void azx_stream_stop(struct azx *chip, struct azx_dev *azx_dev);
@@ -50,4 +50,7 @@ int azx_codec_configure(struct azx *chip);
 int azx_mixer_create(struct azx *chip);
 int azx_init_stream(struct azx *chip);
 
+void azx_notifier_register(struct azx *chip);
+void azx_notifier_unregister(struct azx *chip);
+
 #endif /* __SOUND_HDA_CONTROLLER_H */
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 25753db..dc0c8da 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -44,7 +44,6 @@
 #include <linux/slab.h>
 #include <linux/pci.h>
 #include <linux/mutex.h>
-#include <linux/reboot.h>
 #include <linux/io.h>
 #include <linux/pm_runtime.h>
 #include <linux/clocksource.h>
@@ -66,6 +65,52 @@
 #include "hda_controller.h"
 #include "hda_priv.h"
 
+/* position fix mode */
+enum {
+	POS_FIX_AUTO,
+	POS_FIX_LPIB,
+	POS_FIX_POSBUF,
+	POS_FIX_VIACOMBO,
+	POS_FIX_COMBO,
+};
+
+/* Defines for ATI HD Audio support in SB450 south bridge */
+#define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR   0x42
+#define ATI_SB450_HDAUDIO_ENABLE_SNOOP      0x02
+
+/* Defines for Nvidia HDA support */
+#define NVIDIA_HDA_TRANSREG_ADDR      0x4e
+#define NVIDIA_HDA_ENABLE_COHBITS     0x0f
+#define NVIDIA_HDA_ISTRM_COH          0x4d
+#define NVIDIA_HDA_OSTRM_COH          0x4c
+#define NVIDIA_HDA_ENABLE_COHBIT      0x01
+
+/* Defines for Intel SCH HDA snoop control */
+#define INTEL_SCH_HDA_DEVC      0x78
+#define INTEL_SCH_HDA_DEVC_NOSNOOP       (0x1<<11)
+
+/* Define IN stream 0 FIFO size offset in VIA controller */
+#define VIA_IN_STREAM0_FIFO_SIZE_OFFSET	0x90
+/* Define VIA HD Audio Device ID*/
+#define VIA_HDAC_DEVICE_ID		0x3288
+
+/* max number of SDs */
+/* ICH, ATI and VIA have 4 playback and 4 capture */
+#define ICH6_NUM_CAPTURE	4
+#define ICH6_NUM_PLAYBACK	4
+
+/* ULI has 6 playback and 5 capture */
+#define ULI_NUM_CAPTURE		5
+#define ULI_NUM_PLAYBACK	6
+
+/* ATI HDMI may have up to 8 playbacks and 0 capture */
+#define ATIHDMI_NUM_CAPTURE	0
+#define ATIHDMI_NUM_PLAYBACK	8
+
+/* TERA has 4 playback and 3 capture */
+#define TERA_NUM_CAPTURE	3
+#define TERA_NUM_PLAYBACK	4
+
 
 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
@@ -294,8 +339,8 @@ static char *driver_short_names[] = {
  * Clock) to 24MHz BCLK: BCLK = CDCLK * M / N
  * The values will be lost when the display power well is disabled.
  */
-#define ICH6_REG_EM4			0x100c
-#define ICH6_REG_EM5			0x1010
+#define AZX_REG_EM4			0x100c
+#define AZX_REG_EM5			0x1010
 
 struct hda_intel {
 	struct azx chip;
@@ -303,8 +348,28 @@ struct hda_intel {
 	/* HSW/BDW display HDA controller to restore BCLK from CDCLK */
 	unsigned int bclk_m;
 	unsigned int bclk_n;
-};
 
+	/* for pending irqs */
+	struct work_struct irq_pending_work;
+
+	/* sync probing */
+	struct completion probe_wait;
+	struct work_struct probe_work;
+
+	/* card list (for power_save trigger) */
+	struct list_head list;
+
+	/* extra flags */
+	unsigned int irq_pending_warned:1;
+
+	/* VGA-switcheroo setup */
+	unsigned int use_vga_switcheroo:1;
+	unsigned int vga_switcheroo_registered:1;
+	unsigned int init_failed:1; /* delayed init failed */
+
+	/* secondary power domain for hdmi audio under vga device */
+	struct dev_pm_domain hdmi_pm_domain;
+};
 
 #ifdef CONFIG_X86
 static void __mark_pages_wc(struct azx *chip, struct snd_dma_buffer *dmab, bool on)
@@ -386,7 +451,7 @@ static void azx_init_pci(struct azx *chip)
 	 */
 	if (!(chip->driver_caps & AZX_DCAPS_NO_TCSEL)) {
 		dev_dbg(chip->card->dev, "Clearing TCSEL\n");
-		update_pci_byte(chip->pci, ICH6_PCIREG_TCSEL, 0x07, 0);
+		update_pci_byte(chip->pci, AZX_PCIREG_TCSEL, 0x07, 0);
 	}
 
 	/* For ATI SB450/600/700/800/900 and AMD Hudson azalia HD audio,
@@ -434,11 +499,44 @@ static void azx_init_pci(struct azx *chip)
         }
 }
 
+/* calculate runtime delay from LPIB */
+static int azx_get_delay_from_lpib(struct azx *chip, struct azx_dev *azx_dev,
+				   unsigned int pos)
+{
+	struct snd_pcm_substream *substream = azx_dev->substream;
+	int stream = substream->stream;
+	unsigned int lpib_pos = azx_get_pos_lpib(chip, azx_dev);
+	int delay;
+
+	if (stream == SNDRV_PCM_STREAM_PLAYBACK)
+		delay = pos - lpib_pos;
+	else
+		delay = lpib_pos - pos;
+	if (delay < 0) {
+		if (delay >= azx_dev->delay_negative_threshold)
+			delay = 0;
+		else
+			delay += azx_dev->bufsize;
+	}
+
+	if (delay >= azx_dev->period_bytes) {
+		dev_info(chip->card->dev,
+			 "Unstable LPIB (%d >= %d); disabling LPIB delay counting\n",
+			 delay, azx_dev->period_bytes);
+		delay = 0;
+		chip->driver_caps &= ~AZX_DCAPS_COUNT_LPIB_DELAY;
+		chip->get_delay[stream] = NULL;
+	}
+
+	return bytes_to_frames(substream->runtime, delay);
+}
+
 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
 
 /* called from IRQ */
 static int azx_position_check(struct azx *chip, struct azx_dev *azx_dev)
 {
+	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
 	int ok;
 
 	ok = azx_position_ok(chip, azx_dev);
@@ -448,7 +546,7 @@ static int azx_position_check(struct azx *chip, struct azx_dev *azx_dev)
 	} else if (ok == 0 && chip->bus && chip->bus->workq) {
 		/* bogus IRQ, process it later */
 		azx_dev->irq_pending = 1;
-		queue_work(chip->bus->workq, &chip->irq_pending_work);
+		queue_work(chip->bus->workq, &hda->irq_pending_work);
 	}
 	return 0;
 }
@@ -464,6 +562,8 @@ static int azx_position_check(struct azx *chip, struct azx_dev *azx_dev)
  */
 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
 {
+	struct snd_pcm_substream *substream = azx_dev->substream;
+	int stream = substream->stream;
 	u32 wallclk;
 	unsigned int pos;
 
@@ -471,7 +571,25 @@ static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
 	if (wallclk < (azx_dev->period_wallclk * 2) / 3)
 		return -1;	/* bogus (too early) interrupt */
 
-	pos = azx_get_position(chip, azx_dev, true);
+	if (chip->get_position[stream])
+		pos = chip->get_position[stream](chip, azx_dev);
+	else { /* use the position buffer as default */
+		pos = azx_get_pos_posbuf(chip, azx_dev);
+		if (!pos || pos == (u32)-1) {
+			dev_info(chip->card->dev,
+				 "Invalid position buffer, using LPIB read method instead.\n");
+			chip->get_position[stream] = azx_get_pos_lpib;
+			pos = azx_get_pos_lpib(chip, azx_dev);
+			chip->get_delay[stream] = NULL;
+		} else {
+			chip->get_position[stream] = azx_get_pos_posbuf;
+			if (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)
+				chip->get_delay[stream] = azx_get_delay_from_lpib;
+		}
+	}
+
+	if (pos >= azx_dev->bufsize)
+		pos = 0;
 
 	if (WARN_ONCE(!azx_dev->period_bytes,
 		      "hda-intel: zero azx_dev->period_bytes"))
@@ -489,14 +607,15 @@ static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
  */
 static void azx_irq_pending_work(struct work_struct *work)
 {
-	struct azx *chip = container_of(work, struct azx, irq_pending_work);
+	struct hda_intel *hda = container_of(work, struct hda_intel, irq_pending_work);
+	struct azx *chip = &hda->chip;
 	int i, pending, ok;
 
-	if (!chip->irq_pending_warned) {
+	if (!hda->irq_pending_warned) {
 		dev_info(chip->card->dev,
 			 "IRQ timing workaround is activated for card #%d. Suggest a bigger bdl_pos_adj.\n",
 			 chip->card->number);
-		chip->irq_pending_warned = 1;
+		hda->irq_pending_warned = 1;
 	}
 
 	for (;;) {
@@ -554,27 +673,86 @@ static int azx_acquire_irq(struct azx *chip, int do_disconnect)
 	return 0;
 }
 
+/* get the current DMA position with correction on VIA chips */
+static unsigned int azx_via_get_position(struct azx *chip,
+					 struct azx_dev *azx_dev)
+{
+	unsigned int link_pos, mini_pos, bound_pos;
+	unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
+	unsigned int fifo_size;
+
+	link_pos = azx_sd_readl(chip, azx_dev, SD_LPIB);
+	if (azx_dev->substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		/* Playback, no problem using link position */
+		return link_pos;
+	}
+
+	/* Capture */
+	/* For new chipset,
+	 * use mod to get the DMA position just like old chipset
+	 */
+	mod_dma_pos = le32_to_cpu(*azx_dev->posbuf);
+	mod_dma_pos %= azx_dev->period_bytes;
+
+	/* azx_dev->fifo_size can't get FIFO size of in stream.
+	 * Get from base address + offset.
+	 */
+	fifo_size = readw(chip->remap_addr + VIA_IN_STREAM0_FIFO_SIZE_OFFSET);
+
+	if (azx_dev->insufficient) {
+		/* Link position never gather than FIFO size */
+		if (link_pos <= fifo_size)
+			return 0;
+
+		azx_dev->insufficient = 0;
+	}
+
+	if (link_pos <= fifo_size)
+		mini_pos = azx_dev->bufsize + link_pos - fifo_size;
+	else
+		mini_pos = link_pos - fifo_size;
+
+	/* Find nearest previous boudary */
+	mod_mini_pos = mini_pos % azx_dev->period_bytes;
+	mod_link_pos = link_pos % azx_dev->period_bytes;
+	if (mod_link_pos >= fifo_size)
+		bound_pos = link_pos - mod_link_pos;
+	else if (mod_dma_pos >= mod_mini_pos)
+		bound_pos = mini_pos - mod_mini_pos;
+	else {
+		bound_pos = mini_pos - mod_mini_pos + azx_dev->period_bytes;
+		if (bound_pos >= azx_dev->bufsize)
+			bound_pos = 0;
+	}
+
+	/* Calculate real DMA position we want */
+	return bound_pos + mod_dma_pos;
+}
+
 #ifdef CONFIG_PM
 static DEFINE_MUTEX(card_list_lock);
 static LIST_HEAD(card_list);
 
 static void azx_add_card_list(struct azx *chip)
 {
+	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
 	mutex_lock(&card_list_lock);
-	list_add(&chip->list, &card_list);
+	list_add(&hda->list, &card_list);
 	mutex_unlock(&card_list_lock);
 }
 
 static void azx_del_card_list(struct azx *chip)
 {
+	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
 	mutex_lock(&card_list_lock);
-	list_del_init(&chip->list);
+	list_del_init(&hda->list);
 	mutex_unlock(&card_list_lock);
 }
 
 /* trigger power-save check at writing parameter */
 static int param_set_xint(const char *val, const struct kernel_param *kp)
 {
+	struct hda_intel *hda;
 	struct azx *chip;
 	struct hda_codec *c;
 	int prev = power_save;
@@ -584,7 +762,8 @@ static int param_set_xint(const char *val, const struct kernel_param *kp)
 		return ret;
 
 	mutex_lock(&card_list_lock);
-	list_for_each_entry(chip, &card_list, list) {
+	list_for_each_entry(hda, &card_list, list) {
+		chip = &hda->chip;
 		if (!chip->bus || chip->disabled)
 			continue;
 		list_for_each_entry(c, &chip->bus->codec_list, list)
@@ -789,29 +968,6 @@ static const struct dev_pm_ops azx_pm = {
 #endif /* CONFIG_PM */
 
 
-/*
- * reboot notifier for hang-up problem at power-down
- */
-static int azx_halt(struct notifier_block *nb, unsigned long event, void *buf)
-{
-	struct azx *chip = container_of(nb, struct azx, reboot_notifier);
-	snd_hda_bus_reboot_notify(chip->bus);
-	azx_stop_chip(chip);
-	return NOTIFY_OK;
-}
-
-static void azx_notifier_register(struct azx *chip)
-{
-	chip->reboot_notifier.notifier_call = azx_halt;
-	register_reboot_notifier(&chip->reboot_notifier);
-}
-
-static void azx_notifier_unregister(struct azx *chip)
-{
-	if (chip->reboot_notifier.notifier_call)
-		unregister_reboot_notifier(&chip->reboot_notifier);
-}
-
 static int azx_probe_continue(struct azx *chip);
 
 #ifdef SUPPORT_VGA_SWITCHEROO
@@ -822,10 +978,11 @@ static void azx_vs_set_state(struct pci_dev *pci,
 {
 	struct snd_card *card = pci_get_drvdata(pci);
 	struct azx *chip = card->private_data;
+	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
 	bool disabled;
 
-	wait_for_completion(&chip->probe_wait);
-	if (chip->init_failed)
+	wait_for_completion(&hda->probe_wait);
+	if (hda->init_failed)
 		return;
 
 	disabled = (state == VGA_SWITCHEROO_OFF);
@@ -839,7 +996,7 @@ static void azx_vs_set_state(struct pci_dev *pci,
 				 "Start delayed initialization\n");
 			if (azx_probe_continue(chip) < 0) {
 				dev_err(chip->card->dev, "initialization error\n");
-				chip->init_failed = true;
+				hda->init_failed = true;
 			}
 		}
 	} else {
@@ -869,9 +1026,10 @@ static bool azx_vs_can_switch(struct pci_dev *pci)
 {
 	struct snd_card *card = pci_get_drvdata(pci);
 	struct azx *chip = card->private_data;
+	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
 
-	wait_for_completion(&chip->probe_wait);
-	if (chip->init_failed)
+	wait_for_completion(&hda->probe_wait);
+	if (hda->init_failed)
 		return false;
 	if (chip->disabled || !chip->bus)
 		return true;
@@ -883,11 +1041,12 @@ static bool azx_vs_can_switch(struct pci_dev *pci)
 
 static void init_vga_switcheroo(struct azx *chip)
 {
+	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
 	struct pci_dev *p = get_bound_vga(chip->pci);
 	if (p) {
 		dev_info(chip->card->dev,
 			 "Handle VGA-switcheroo audio client\n");
-		chip->use_vga_switcheroo = 1;
+		hda->use_vga_switcheroo = 1;
 		pci_dev_put(p);
 	}
 }
@@ -899,9 +1058,10 @@ static const struct vga_switcheroo_client_ops azx_vs_ops = {
 
 static int register_vga_switcheroo(struct azx *chip)
 {
+	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
 	int err;
 
-	if (!chip->use_vga_switcheroo)
+	if (!hda->use_vga_switcheroo)
 		return 0;
 	/* FIXME: currently only handling DIS controller
 	 * is there any machine with two switchable HDMI audio controllers?
@@ -911,11 +1071,11 @@ static int register_vga_switcheroo(struct azx *chip)
 						    chip->bus != NULL);
 	if (err < 0)
 		return err;
-	chip->vga_switcheroo_registered = 1;
+	hda->vga_switcheroo_registered = 1;
 
 	/* register as an optimus hdmi audio power domain */
 	vga_switcheroo_init_domain_pm_optimus_hdmi_audio(chip->card->dev,
-							 &chip->hdmi_pm_domain);
+							 &hda->hdmi_pm_domain);
 	return 0;
 }
 #else
@@ -931,7 +1091,6 @@ static int azx_free(struct azx *chip)
 {
 	struct pci_dev *pci = chip->pci;
 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
-
 	int i;
 
 	if ((chip->driver_caps & AZX_DCAPS_PM_RUNTIME)
@@ -942,13 +1101,13 @@ static int azx_free(struct azx *chip)
 
 	azx_notifier_unregister(chip);
 
-	chip->init_failed = 1; /* to be sure */
-	complete_all(&chip->probe_wait);
+	hda->init_failed = 1; /* to be sure */
+	complete_all(&hda->probe_wait);
 
-	if (use_vga_switcheroo(chip)) {
+	if (use_vga_switcheroo(hda)) {
 		if (chip->disabled && chip->bus)
 			snd_hda_unlock_devices(chip->bus);
-		if (chip->vga_switcheroo_registered)
+		if (hda->vga_switcheroo_registered)
 			vga_switcheroo_unregister_client(chip->pci);
 	}
 
@@ -1084,6 +1243,30 @@ static int check_position_fix(struct azx *chip, int fix)
 	return POS_FIX_AUTO;
 }
 
+static void assign_position_fix(struct azx *chip, int fix)
+{
+	static azx_get_pos_callback_t callbacks[] = {
+		[POS_FIX_AUTO] = NULL,
+		[POS_FIX_LPIB] = azx_get_pos_lpib,
+		[POS_FIX_POSBUF] = azx_get_pos_posbuf,
+		[POS_FIX_VIACOMBO] = azx_via_get_position,
+		[POS_FIX_COMBO] = azx_get_pos_lpib,
+	};
+
+	chip->get_position[0] = chip->get_position[1] = callbacks[fix];
+
+	/* combo mode uses LPIB only for playback */
+	if (fix == POS_FIX_COMBO)
+		chip->get_position[1] = NULL;
+
+	if (fix == POS_FIX_POSBUF &&
+	    (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)) {
+		chip->get_delay[0] = chip->get_delay[1] =
+			azx_get_delay_from_lpib;
+	}
+
+}
+
 /*
  * black-lists for probe_mask
  */
@@ -1209,7 +1392,8 @@ static void azx_check_snoop_available(struct azx *chip)
 
 static void azx_probe_work(struct work_struct *work)
 {
-	azx_probe_continue(container_of(work, struct azx, probe_work));
+	struct hda_intel *hda = container_of(work, struct hda_intel, probe_work);
+	azx_probe_continue(&hda->chip);
 }
 
 /*
@@ -1252,19 +1436,13 @@ static int azx_create(struct snd_card *card, struct pci_dev *pci,
 	check_msi(chip);
 	chip->dev_index = dev;
 	chip->jackpoll_ms = jackpoll_ms;
-	INIT_WORK(&chip->irq_pending_work, azx_irq_pending_work);
 	INIT_LIST_HEAD(&chip->pcm_list);
-	INIT_LIST_HEAD(&chip->list);
+	INIT_WORK(&hda->irq_pending_work, azx_irq_pending_work);
+	INIT_LIST_HEAD(&hda->list);
 	init_vga_switcheroo(chip);
-	init_completion(&chip->probe_wait);
+	init_completion(&hda->probe_wait);
 
-	chip->position_fix[0] = chip->position_fix[1] =
-		check_position_fix(chip, position_fix[dev]);
-	/* combo mode uses LPIB for playback */
-	if (chip->position_fix[0] == POS_FIX_COMBO) {
-		chip->position_fix[0] = POS_FIX_LPIB;
-		chip->position_fix[1] = POS_FIX_AUTO;
-	}
+	assign_position_fix(chip, check_position_fix(chip, position_fix[dev]));
 
 	check_probe_mask(chip, dev);
 
@@ -1293,7 +1471,7 @@ static int azx_create(struct snd_card *card, struct pci_dev *pci,
 	}
 
 	/* continue probing in work context as may trigger request module */
-	INIT_WORK(&chip->probe_work, azx_probe_work);
+	INIT_WORK(&hda->probe_work, azx_probe_work);
 
 	*rchip = chip;
 
@@ -1351,7 +1529,7 @@ static int azx_first_init(struct azx *chip)
 					 NULL);
 		if (p_smbus) {
 			if (p_smbus->revision < 0x30)
-				gcap &= ~ICH6_GCAP_64OK;
+				gcap &= ~AZX_GCAP_64OK;
 			pci_dev_put(p_smbus);
 		}
 	}
@@ -1359,7 +1537,7 @@ static int azx_first_init(struct azx *chip)
 	/* disable 64bit DMA address on some devices */
 	if (chip->driver_caps & AZX_DCAPS_NO_64BIT) {
 		dev_dbg(card->dev, "Disabling 64bit DMA\n");
-		gcap &= ~ICH6_GCAP_64OK;
+		gcap &= ~AZX_GCAP_64OK;
 	}
 
 	/* disable buffer size rounding to 128-byte multiples if supported */
@@ -1375,7 +1553,7 @@ static int azx_first_init(struct azx *chip)
 	}
 
 	/* allow 64bit DMA address if supported by H/W */
-	if ((gcap & ICH6_GCAP_64OK) && !pci_set_dma_mask(pci, DMA_BIT_MASK(64)))
+	if ((gcap & AZX_GCAP_64OK) && !pci_set_dma_mask(pci, DMA_BIT_MASK(64)))
 		pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(64));
 	else {
 		pci_set_dma_mask(pci, DMA_BIT_MASK(32));
@@ -1615,6 +1793,7 @@ static int azx_probe(struct pci_dev *pci,
 {
 	static int dev;
 	struct snd_card *card;
+	struct hda_intel *hda;
 	struct azx *chip;
 	bool schedule_probe;
 	int err;
@@ -1638,6 +1817,7 @@ static int azx_probe(struct pci_dev *pci,
 	if (err < 0)
 		goto out_free;
 	card->private_data = chip;
+	hda = container_of(chip, struct hda_intel, chip);
 
 	pci_set_drvdata(pci, card);
 
@@ -1674,11 +1854,11 @@ static int azx_probe(struct pci_dev *pci,
 #endif
 
 	if (schedule_probe)
-		schedule_work(&chip->probe_work);
+		schedule_work(&hda->probe_work);
 
 	dev++;
 	if (chip->disabled)
-		complete_all(&chip->probe_wait);
+		complete_all(&hda->probe_wait);
 	return 0;
 
 out_free:
@@ -1694,6 +1874,7 @@ static unsigned int azx_max_codecs[AZX_NUM_DRIVERS] = {
 
 static int azx_probe_continue(struct azx *chip)
 {
+	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
 	struct pci_dev *pci = chip->pci;
 	int dev = chip->dev_index;
 	int err;
@@ -1767,13 +1948,13 @@ static int azx_probe_continue(struct azx *chip)
 	power_down_all_codecs(chip);
 	azx_notifier_register(chip);
 	azx_add_card_list(chip);
-	if ((chip->driver_caps & AZX_DCAPS_PM_RUNTIME) || chip->use_vga_switcheroo)
+	if ((chip->driver_caps & AZX_DCAPS_PM_RUNTIME) || hda->use_vga_switcheroo)
 		pm_runtime_put_noidle(&pci->dev);
 
 out_free:
 	if (err < 0)
-		chip->init_failed = 1;
-	complete_all(&chip->probe_wait);
+		hda->init_failed = 1;
+	complete_all(&hda->probe_wait);
 	return err;
 }
 
diff --git a/sound/pci/hda/hda_priv.h b/sound/pci/hda/hda_priv.h
index 4a7cb01..33eb5d0 100644
--- a/sound/pci/hda/hda_priv.h
+++ b/sound/pci/hda/hda_priv.h
@@ -22,107 +22,87 @@
 /*
  * registers
  */
-#define ICH6_REG_GCAP			0x00
-#define   ICH6_GCAP_64OK	(1 << 0)   /* 64bit address support */
-#define   ICH6_GCAP_NSDO	(3 << 1)   /* # of serial data out signals */
-#define   ICH6_GCAP_BSS		(31 << 3)  /* # of bidirectional streams */
-#define   ICH6_GCAP_ISS		(15 << 8)  /* # of input streams */
-#define   ICH6_GCAP_OSS		(15 << 12) /* # of output streams */
-#define ICH6_REG_VMIN			0x02
-#define ICH6_REG_VMAJ			0x03
-#define ICH6_REG_OUTPAY			0x04
-#define ICH6_REG_INPAY			0x06
-#define ICH6_REG_GCTL			0x08
-#define   ICH6_GCTL_RESET	(1 << 0)   /* controller reset */
-#define   ICH6_GCTL_FCNTRL	(1 << 1)   /* flush control */
-#define   ICH6_GCTL_UNSOL	(1 << 8)   /* accept unsol. response enable */
-#define ICH6_REG_WAKEEN			0x0c
-#define ICH6_REG_STATESTS		0x0e
-#define ICH6_REG_GSTS			0x10
-#define   ICH6_GSTS_FSTS	(1 << 1)   /* flush status */
-#define ICH6_REG_INTCTL			0x20
-#define ICH6_REG_INTSTS			0x24
-#define ICH6_REG_WALLCLK		0x30	/* 24Mhz source */
-#define ICH6_REG_OLD_SSYNC		0x34	/* SSYNC for old ICH */
-#define ICH6_REG_SSYNC			0x38
-#define ICH6_REG_CORBLBASE		0x40
-#define ICH6_REG_CORBUBASE		0x44
-#define ICH6_REG_CORBWP			0x48
-#define ICH6_REG_CORBRP			0x4a
-#define   ICH6_CORBRP_RST	(1 << 15)  /* read pointer reset */
-#define ICH6_REG_CORBCTL		0x4c
-#define   ICH6_CORBCTL_RUN	(1 << 1)   /* enable DMA */
-#define   ICH6_CORBCTL_CMEIE	(1 << 0)   /* enable memory error irq */
-#define ICH6_REG_CORBSTS		0x4d
-#define   ICH6_CORBSTS_CMEI	(1 << 0)   /* memory error indication */
-#define ICH6_REG_CORBSIZE		0x4e
-
-#define ICH6_REG_RIRBLBASE		0x50
-#define ICH6_REG_RIRBUBASE		0x54
-#define ICH6_REG_RIRBWP			0x58
-#define   ICH6_RIRBWP_RST	(1 << 15)  /* write pointer reset */
-#define ICH6_REG_RINTCNT		0x5a
-#define ICH6_REG_RIRBCTL		0x5c
-#define   ICH6_RBCTL_IRQ_EN	(1 << 0)   /* enable IRQ */
-#define   ICH6_RBCTL_DMA_EN	(1 << 1)   /* enable DMA */
-#define   ICH6_RBCTL_OVERRUN_EN	(1 << 2)   /* enable overrun irq */
-#define ICH6_REG_RIRBSTS		0x5d
-#define   ICH6_RBSTS_IRQ	(1 << 0)   /* response irq */
-#define   ICH6_RBSTS_OVERRUN	(1 << 2)   /* overrun irq */
-#define ICH6_REG_RIRBSIZE		0x5e
-
-#define ICH6_REG_IC			0x60
-#define ICH6_REG_IR			0x64
-#define ICH6_REG_IRS			0x68
-#define   ICH6_IRS_VALID	(1<<1)
-#define   ICH6_IRS_BUSY		(1<<0)
-
-#define ICH6_REG_DPLBASE		0x70
-#define ICH6_REG_DPUBASE		0x74
-#define   ICH6_DPLBASE_ENABLE	0x1	/* Enable position buffer */
+#define AZX_REG_GCAP			0x00
+#define   AZX_GCAP_64OK		(1 << 0)   /* 64bit address support */
+#define   AZX_GCAP_NSDO		(3 << 1)   /* # of serial data out signals */
+#define   AZX_GCAP_BSS		(31 << 3)  /* # of bidirectional streams */
+#define   AZX_GCAP_ISS		(15 << 8)  /* # of input streams */
+#define   AZX_GCAP_OSS		(15 << 12) /* # of output streams */
+#define AZX_REG_VMIN			0x02
+#define AZX_REG_VMAJ			0x03
+#define AZX_REG_OUTPAY			0x04
+#define AZX_REG_INPAY			0x06
+#define AZX_REG_GCTL			0x08
+#define   AZX_GCTL_RESET	(1 << 0)   /* controller reset */
+#define   AZX_GCTL_FCNTRL	(1 << 1)   /* flush control */
+#define   AZX_GCTL_UNSOL	(1 << 8)   /* accept unsol. response enable */
+#define AZX_REG_WAKEEN			0x0c
+#define AZX_REG_STATESTS		0x0e
+#define AZX_REG_GSTS			0x10
+#define   AZX_GSTS_FSTS		(1 << 1)   /* flush status */
+#define AZX_REG_INTCTL			0x20
+#define AZX_REG_INTSTS			0x24
+#define AZX_REG_WALLCLK			0x30	/* 24Mhz source */
+#define AZX_REG_OLD_SSYNC		0x34	/* SSYNC for old ICH */
+#define AZX_REG_SSYNC			0x38
+#define AZX_REG_CORBLBASE		0x40
+#define AZX_REG_CORBUBASE		0x44
+#define AZX_REG_CORBWP			0x48
+#define AZX_REG_CORBRP			0x4a
+#define   AZX_CORBRP_RST	(1 << 15)  /* read pointer reset */
+#define AZX_REG_CORBCTL			0x4c
+#define   AZX_CORBCTL_RUN	(1 << 1)   /* enable DMA */
+#define   AZX_CORBCTL_CMEIE	(1 << 0)   /* enable memory error irq */
+#define AZX_REG_CORBSTS			0x4d
+#define   AZX_CORBSTS_CMEI	(1 << 0)   /* memory error indication */
+#define AZX_REG_CORBSIZE		0x4e
+
+#define AZX_REG_RIRBLBASE		0x50
+#define AZX_REG_RIRBUBASE		0x54
+#define AZX_REG_RIRBWP			0x58
+#define   AZX_RIRBWP_RST	(1 << 15)  /* write pointer reset */
+#define AZX_REG_RINTCNT			0x5a
+#define AZX_REG_RIRBCTL			0x5c
+#define   AZX_RBCTL_IRQ_EN	(1 << 0)   /* enable IRQ */
+#define   AZX_RBCTL_DMA_EN	(1 << 1)   /* enable DMA */
+#define   AZX_RBCTL_OVERRUN_EN	(1 << 2)   /* enable overrun irq */
+#define AZX_REG_RIRBSTS			0x5d
+#define   AZX_RBSTS_IRQ		(1 << 0)   /* response irq */
+#define   AZX_RBSTS_OVERRUN	(1 << 2)   /* overrun irq */
+#define AZX_REG_RIRBSIZE		0x5e
+
+#define AZX_REG_IC			0x60
+#define AZX_REG_IR			0x64
+#define AZX_REG_IRS			0x68
+#define   AZX_IRS_VALID		(1<<1)
+#define   AZX_IRS_BUSY		(1<<0)
+
+#define AZX_REG_DPLBASE			0x70
+#define AZX_REG_DPUBASE			0x74
+#define   AZX_DPLBASE_ENABLE	0x1	/* Enable position buffer */
 
 /* SD offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
 enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 };
 
 /* stream register offsets from stream base */
-#define ICH6_REG_SD_CTL			0x00
-#define ICH6_REG_SD_STS			0x03
-#define ICH6_REG_SD_LPIB		0x04
-#define ICH6_REG_SD_CBL			0x08
-#define ICH6_REG_SD_LVI			0x0c
-#define ICH6_REG_SD_FIFOW		0x0e
-#define ICH6_REG_SD_FIFOSIZE		0x10
-#define ICH6_REG_SD_FORMAT		0x12
-#define ICH6_REG_SD_BDLPL		0x18
-#define ICH6_REG_SD_BDLPU		0x1c
+#define AZX_REG_SD_CTL			0x00
+#define AZX_REG_SD_STS			0x03
+#define AZX_REG_SD_LPIB			0x04
+#define AZX_REG_SD_CBL			0x08
+#define AZX_REG_SD_LVI			0x0c
+#define AZX_REG_SD_FIFOW		0x0e
+#define AZX_REG_SD_FIFOSIZE		0x10
+#define AZX_REG_SD_FORMAT		0x12
+#define AZX_REG_SD_BDLPL		0x18
+#define AZX_REG_SD_BDLPU		0x1c
 
 /* PCI space */
-#define ICH6_PCIREG_TCSEL	0x44
+#define AZX_PCIREG_TCSEL		0x44
 
 /*
  * other constants
  */
 
-/* max number of SDs */
-/* ICH, ATI and VIA have 4 playback and 4 capture */
-#define ICH6_NUM_CAPTURE	4
-#define ICH6_NUM_PLAYBACK	4
-
-/* ULI has 6 playback and 5 capture */
-#define ULI_NUM_CAPTURE		5
-#define ULI_NUM_PLAYBACK	6
-
-/* ATI HDMI may have up to 8 playbacks and 0 capture */
-#define ATIHDMI_NUM_CAPTURE	0
-#define ATIHDMI_NUM_PLAYBACK	8
-
-/* TERA has 4 playback and 3 capture */
-#define TERA_NUM_CAPTURE	3
-#define TERA_NUM_PLAYBACK	4
-
-/* this number is statically defined for simplicity */
-#define MAX_AZX_DEV		16
-
 /* max number of fragments - we may use more if allocating more pages for BDL */
 #define BDL_SIZE		4096
 #define AZX_MAX_BDL_ENTRIES	(BDL_SIZE / 16)
@@ -160,13 +140,13 @@ enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 };
 #define SD_STS_FIFO_READY	0x20	/* FIFO ready */
 
 /* INTCTL and INTSTS */
-#define ICH6_INT_ALL_STREAM	0xff	   /* all stream interrupts */
-#define ICH6_INT_CTRL_EN	0x40000000 /* controller interrupt enable bit */
-#define ICH6_INT_GLOBAL_EN	0x80000000 /* global interrupt enable bit */
+#define AZX_INT_ALL_STREAM	0xff	   /* all stream interrupts */
+#define AZX_INT_CTRL_EN	0x40000000 /* controller interrupt enable bit */
+#define AZX_INT_GLOBAL_EN	0x80000000 /* global interrupt enable bit */
 
 /* below are so far hardcoded - should read registers in future */
-#define ICH6_MAX_CORB_ENTRIES	256
-#define ICH6_MAX_RIRB_ENTRIES	256
+#define AZX_MAX_CORB_ENTRIES	256
+#define AZX_MAX_RIRB_ENTRIES	256
 
 /* driver quirks (capabilities) */
 /* bits 0-7 are used for indicating driver type */
@@ -191,35 +171,6 @@ enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 };
 #define AZX_DCAPS_I915_POWERWELL (1 << 27)	/* HSW i915 powerwell support */
 #define AZX_DCAPS_CORBRP_SELF_CLEAR (1 << 28)	/* CORBRP clears itself after reset */
 
-/* position fix mode */
-enum {
-	POS_FIX_AUTO,
-	POS_FIX_LPIB,
-	POS_FIX_POSBUF,
-	POS_FIX_VIACOMBO,
-	POS_FIX_COMBO,
-};
-
-/* Defines for ATI HD Audio support in SB450 south bridge */
-#define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR   0x42
-#define ATI_SB450_HDAUDIO_ENABLE_SNOOP      0x02
-
-/* Defines for Nvidia HDA support */
-#define NVIDIA_HDA_TRANSREG_ADDR      0x4e
-#define NVIDIA_HDA_ENABLE_COHBITS     0x0f
-#define NVIDIA_HDA_ISTRM_COH          0x4d
-#define NVIDIA_HDA_OSTRM_COH          0x4c
-#define NVIDIA_HDA_ENABLE_COHBIT      0x01
-
-/* Defines for Intel SCH HDA snoop control */
-#define INTEL_SCH_HDA_DEVC      0x78
-#define INTEL_SCH_HDA_DEVC_NOSNOOP       (0x1<<11)
-
-/* Define IN stream 0 FIFO size offset in VIA controller */
-#define VIA_IN_STREAM0_FIFO_SIZE_OFFSET	0x90
-/* Define VIA HD Audio Device ID*/
-#define VIA_HDAC_DEVICE_ID		0x3288
-
 /* HD Audio class code */
 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO	0x0403
 
@@ -324,6 +275,9 @@ struct azx_pcm {
 	struct list_head list;
 };
 
+typedef unsigned int (*azx_get_pos_callback_t)(struct azx *, struct azx_dev *);
+typedef int (*azx_get_delay_callback_t)(struct azx *, struct azx_dev *, unsigned int pos);
+
 struct azx {
 	struct snd_card *card;
 	struct pci_dev *pci;
@@ -342,6 +296,10 @@ struct azx {
 	/* Register interaction. */
 	const struct hda_controller_ops *ops;
 
+	/* position adjustment callbacks */
+	azx_get_pos_callback_t get_position[2];
+	azx_get_delay_callback_t get_delay[2];
+
 	/* pci resources */
 	unsigned long addr;
 	void __iomem *remap_addr;
@@ -350,7 +308,6 @@ struct azx {
 	/* locks */
 	spinlock_t reg_lock;
 	struct mutex open_mutex; /* Prevents concurrent open/close operations */
-	struct completion probe_wait;
 
 	/* streams (x num_streams) */
 	struct azx_dev *azx_dev;
@@ -377,7 +334,6 @@ struct azx {
 #endif
 
 	/* flags */
-	int position_fix[2]; /* for both playback/capture streams */
 	const int *bdl_pos_adj;
 	int poll_count;
 	unsigned int running:1;
@@ -385,46 +341,23 @@ struct azx {
 	unsigned int single_cmd:1;
 	unsigned int polling_mode:1;
 	unsigned int msi:1;
-	unsigned int irq_pending_warned:1;
 	unsigned int probing:1; /* codec probing phase */
 	unsigned int snoop:1;
 	unsigned int align_buffer_size:1;
 	unsigned int region_requested:1;
-
-	/* VGA-switcheroo setup */
-	unsigned int use_vga_switcheroo:1;
-	unsigned int vga_switcheroo_registered:1;
-	unsigned int init_failed:1; /* delayed init failed */
 	unsigned int disabled:1; /* disabled by VGA-switcher */
 
 	/* for debugging */
 	unsigned int last_cmd[AZX_MAX_CODECS];
 
-	/* for pending irqs */
-	struct work_struct irq_pending_work;
-
-	struct work_struct probe_work;
-
 	/* reboot notifier (for mysterious hangup problem at power-down) */
 	struct notifier_block reboot_notifier;
 
-	/* card list (for power_save trigger) */
-	struct list_head list;
-
 #ifdef CONFIG_SND_HDA_DSP_LOADER
 	struct azx_dev saved_azx_dev;
 #endif
-
-	/* secondary power domain for hdmi audio under vga device */
-	struct dev_pm_domain hdmi_pm_domain;
 };
 
-#ifdef CONFIG_SND_VERBOSE_PRINTK
-#define SFX	/* nop */
-#else
-#define SFX	"hda-intel "
-#endif
-
 #ifdef CONFIG_X86
 #define azx_snoop(chip)		((chip)->snoop)
 #else
@@ -436,29 +369,29 @@ struct azx {
  */
 
 #define azx_writel(chip, reg, value) \
-	((chip)->ops->reg_writel(value, (chip)->remap_addr + ICH6_REG_##reg))
+	((chip)->ops->reg_writel(value, (chip)->remap_addr + AZX_REG_##reg))
 #define azx_readl(chip, reg) \
-	((chip)->ops->reg_readl((chip)->remap_addr + ICH6_REG_##reg))
+	((chip)->ops->reg_readl((chip)->remap_addr + AZX_REG_##reg))
 #define azx_writew(chip, reg, value) \
-	((chip)->ops->reg_writew(value, (chip)->remap_addr + ICH6_REG_##reg))
+	((chip)->ops->reg_writew(value, (chip)->remap_addr + AZX_REG_##reg))
 #define azx_readw(chip, reg) \
-	((chip)->ops->reg_readw((chip)->remap_addr + ICH6_REG_##reg))
+	((chip)->ops->reg_readw((chip)->remap_addr + AZX_REG_##reg))
 #define azx_writeb(chip, reg, value) \
-	((chip)->ops->reg_writeb(value, (chip)->remap_addr + ICH6_REG_##reg))
+	((chip)->ops->reg_writeb(value, (chip)->remap_addr + AZX_REG_##reg))
 #define azx_readb(chip, reg) \
-	((chip)->ops->reg_readb((chip)->remap_addr + ICH6_REG_##reg))
+	((chip)->ops->reg_readb((chip)->remap_addr + AZX_REG_##reg))
 
 #define azx_sd_writel(chip, dev, reg, value) \
-	((chip)->ops->reg_writel(value, (dev)->sd_addr + ICH6_REG_##reg))
+	((chip)->ops->reg_writel(value, (dev)->sd_addr + AZX_REG_##reg))
 #define azx_sd_readl(chip, dev, reg) \
-	((chip)->ops->reg_readl((dev)->sd_addr + ICH6_REG_##reg))
+	((chip)->ops->reg_readl((dev)->sd_addr + AZX_REG_##reg))
 #define azx_sd_writew(chip, dev, reg, value) \
-	((chip)->ops->reg_writew(value, (dev)->sd_addr + ICH6_REG_##reg))
+	((chip)->ops->reg_writew(value, (dev)->sd_addr + AZX_REG_##reg))
 #define azx_sd_readw(chip, dev, reg) \
-	((chip)->ops->reg_readw((dev)->sd_addr + ICH6_REG_##reg))
+	((chip)->ops->reg_readw((dev)->sd_addr + AZX_REG_##reg))
 #define azx_sd_writeb(chip, dev, reg, value) \
-	((chip)->ops->reg_writeb(value, (dev)->sd_addr + ICH6_REG_##reg))
+	((chip)->ops->reg_writeb(value, (dev)->sd_addr + AZX_REG_##reg))
 #define azx_sd_readb(chip, dev, reg) \
-	((chip)->ops->reg_readb((dev)->sd_addr + ICH6_REG_##reg))
+	((chip)->ops->reg_readb((dev)->sd_addr + AZX_REG_##reg))
 
 #endif /* __SOUND_HDA_PRIV_H */
diff --git a/sound/pci/hda/hda_tegra.c b/sound/pci/hda/hda_tegra.c
index a366ba9..cf69daf 100644
--- a/sound/pci/hda/hda_tegra.c
+++ b/sound/pci/hda/hda_tegra.c
@@ -29,7 +29,6 @@
 #include <linux/moduleparam.h>
 #include <linux/mutex.h>
 #include <linux/of_device.h>
-#include <linux/reboot.h>
 #include <linux/slab.h>
 #include <linux/time.h>
 
@@ -295,30 +294,6 @@ static const struct dev_pm_ops hda_tegra_pm = {
 };
 
 /*
- * reboot notifier for hang-up problem at power-down
- */
-static int hda_tegra_halt(struct notifier_block *nb, unsigned long event,
-			  void *buf)
-{
-	struct azx *chip = container_of(nb, struct azx, reboot_notifier);
-	snd_hda_bus_reboot_notify(chip->bus);
-	azx_stop_chip(chip);
-	return NOTIFY_OK;
-}
-
-static void hda_tegra_notifier_register(struct azx *chip)
-{
-	chip->reboot_notifier.notifier_call = hda_tegra_halt;
-	register_reboot_notifier(&chip->reboot_notifier);
-}
-
-static void hda_tegra_notifier_unregister(struct azx *chip)
-{
-	if (chip->reboot_notifier.notifier_call)
-		unregister_reboot_notifier(&chip->reboot_notifier);
-}
-
-/*
  * destructor
  */
 static int hda_tegra_dev_free(struct snd_device *device)
@@ -326,7 +301,7 @@ static int hda_tegra_dev_free(struct snd_device *device)
 	int i;
 	struct azx *chip = device->device_data;
 
-	hda_tegra_notifier_unregister(chip);
+	azx_notifier_unregister(chip);
 
 	if (chip->initialized) {
 		for (i = 0; i < chip->num_streams; i++)
@@ -480,8 +455,6 @@ static int hda_tegra_create(struct snd_card *card,
 	INIT_LIST_HEAD(&chip->pcm_list);
 	INIT_LIST_HEAD(&chip->list);
 
-	chip->position_fix[0] = POS_FIX_AUTO;
-	chip->position_fix[1] = POS_FIX_AUTO;
 	chip->codec_probe_mask = -1;
 
 	chip->single_cmd = false;
@@ -559,7 +532,7 @@ static int hda_tegra_probe(struct platform_device *pdev)
 
 	chip->running = 1;
 	power_down_all_codecs(chip);
-	hda_tegra_notifier_register(chip);
+	azx_notifier_register(chip);
 
 	return 0;