Merge branch 'origin' into devel

Conflicts:
	sound/soc/pxa/pxa2xx-i2s.c

76 files changed, 1316 insertions, 542 deletions

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 66e012cd327..788bba2b1e1 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -404,7 +404,7 @@ static const struct ata_port_info ahci_port_info[] = {
 	/* board_ahci */
 	{
 		.flags		= AHCI_FLAG_COMMON,
-		.pio_mask	= 0x1f, /* pio0-4 */
+		.pio_mask	= ATA_PIO4,
 		.udma_mask	= ATA_UDMA6,
 		.port_ops	= &ahci_ops,
 	},
@@ -412,7 +412,7 @@ static const struct ata_port_info ahci_port_info[] = {
 	{
 		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_PMP),
 		.flags		= AHCI_FLAG_COMMON,
-		.pio_mask	= 0x1f, /* pio0-4 */
+		.pio_mask	= ATA_PIO4,
 		.udma_mask	= ATA_UDMA6,
 		.port_ops	= &ahci_vt8251_ops,
 	},
@@ -420,7 +420,7 @@ static const struct ata_port_info ahci_port_info[] = {
 	{
 		AHCI_HFLAGS	(AHCI_HFLAG_IGN_IRQ_IF_ERR),
 		.flags		= AHCI_FLAG_COMMON,
-		.pio_mask	= 0x1f, /* pio0-4 */
+		.pio_mask	= ATA_PIO4,
 		.udma_mask	= ATA_UDMA6,
 		.port_ops	= &ahci_ops,
 	},
@@ -430,7 +430,7 @@ static const struct ata_port_info ahci_port_info[] = {
 				 AHCI_HFLAG_32BIT_ONLY | AHCI_HFLAG_NO_MSI |
 				 AHCI_HFLAG_SECT255),
 		.flags		= AHCI_FLAG_COMMON,
-		.pio_mask	= 0x1f, /* pio0-4 */
+		.pio_mask	= ATA_PIO4,
 		.udma_mask	= ATA_UDMA6,
 		.port_ops	= &ahci_sb600_ops,
 	},
@@ -440,7 +440,7 @@ static const struct ata_port_info ahci_port_info[] = {
 				 AHCI_HFLAG_MV_PATA | AHCI_HFLAG_NO_PMP),
 		.flags		= ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
 				  ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA,
-		.pio_mask	= 0x1f, /* pio0-4 */
+		.pio_mask	= ATA_PIO4,
 		.udma_mask	= ATA_UDMA6,
 		.port_ops	= &ahci_ops,
 	},
@@ -448,7 +448,7 @@ static const struct ata_port_info ahci_port_info[] = {
 	{
 		AHCI_HFLAGS	(AHCI_HFLAG_IGN_SERR_INTERNAL),
 		.flags		= AHCI_FLAG_COMMON,
-		.pio_mask	= 0x1f, /* pio0-4 */
+		.pio_mask	= ATA_PIO4,
 		.udma_mask	= ATA_UDMA6,
 		.port_ops	= &ahci_sb600_ops,
 	},
@@ -456,7 +456,7 @@ static const struct ata_port_info ahci_port_info[] = {
 	{
 		AHCI_HFLAGS	(AHCI_HFLAG_YES_NCQ),
 		.flags		= AHCI_FLAG_COMMON,
-		.pio_mask	= 0x1f, /* pio0-4 */
+		.pio_mask	= ATA_PIO4,
 		.udma_mask	= ATA_UDMA6,
 		.port_ops	= &ahci_ops,
 	},
@@ -464,7 +464,7 @@ static const struct ata_port_info ahci_port_info[] = {
 	{
 		AHCI_HFLAGS	(AHCI_HFLAG_NO_PMP),
 		.flags		= AHCI_FLAG_COMMON,
-		.pio_mask	= 0x1f, /* pio0-4 */
+		.pio_mask	= ATA_PIO4,
 		.udma_mask	= ATA_UDMA6,
 		.port_ops	= &ahci_ops,
 	},
@@ -1348,7 +1348,7 @@ static ssize_t ahci_transmit_led_message(struct ata_port *ap, u32 state,
 	writel(message[1], mmio + hpriv->em_loc+4);
 
 	/* save off new led state for port/slot */
-	emp->led_state = message[1];
+	emp->led_state = state;
 
 	/*
 	 * tell hardware to transmit the message
@@ -2565,6 +2565,15 @@ static bool ahci_broken_system_poweroff(struct pci_dev *pdev)
 			/* PCI slot number of the controller */
 			.driver_data = (void *)0x1FUL,
 		},
+		{
+			.ident = "HP Compaq 6720s",
+			.matches = {
+				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+				DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6720s"),
+			},
+			/* PCI slot number of the controller */
+			.driver_data = (void *)0x1FUL,
+		},
 
 		{ }	/* terminate list */
 	};
@@ -2647,8 +2656,8 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (board_id == board_ahci_sb700 && pdev->revision >= 0x40)
 		hpriv->flags &= ~AHCI_HFLAG_IGN_SERR_INTERNAL;
 
-	if ((hpriv->flags & AHCI_HFLAG_NO_MSI) || pci_enable_msi(pdev))
-		pci_intx(pdev, 1);
+	if (!(hpriv->flags & AHCI_HFLAG_NO_MSI))
+		pci_enable_msi(pdev);
 
 	/* save initial config */
 	ahci_save_initial_config(pdev, hpriv);
diff --git a/drivers/ata/ata_generic.c b/drivers/ata/ata_generic.c
index dc48a6398ab..ecfd22b4f1c 100644
--- a/drivers/ata/ata_generic.c
+++ b/drivers/ata/ata_generic.c
@@ -118,8 +118,8 @@ static int ata_generic_init_one(struct pci_dev *dev, const struct pci_device_id
 	u16 command;
 	static const struct ata_port_info info = {
 		.flags = ATA_FLAG_SLAVE_POSS,
-		.pio_mask = 0x1f,
-		.mwdma_mask = 0x07,
+		.pio_mask = ATA_PIO4,
+		.mwdma_mask = ATA_MWDMA2,
 		.udma_mask = ATA_UDMA5,
 		.port_ops = &generic_port_ops
 	};
diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index ef8b30d577b..e5cbe80ce17 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -446,34 +446,34 @@ static struct ata_port_info piix_port_info[] = {
 	[piix_pata_mwdma] = 	/* PIIX3 MWDMA only */
 	{
 		.flags		= PIIX_PATA_FLAGS,
-		.pio_mask	= 0x1f,	/* pio0-4 */
-		.mwdma_mask	= 0x06, /* mwdma1-2 ?? CHECK 0 should be ok but slow */
+		.pio_mask	= ATA_PIO4,
+		.mwdma_mask	= ATA_MWDMA12_ONLY, /* mwdma1-2 ?? CHECK 0 should be ok but slow */
 		.port_ops	= &piix_pata_ops,
 	},
 
 	[piix_pata_33] =	/* PIIX4 at 33MHz */
 	{
 		.flags		= PIIX_PATA_FLAGS,
-		.pio_mask	= 0x1f,	/* pio0-4 */
-		.mwdma_mask	= 0x06, /* mwdma1-2 ?? CHECK 0 should be ok but slow */
-		.udma_mask	= ATA_UDMA_MASK_40C,
+		.pio_mask	= ATA_PIO4,
+		.mwdma_mask	= ATA_MWDMA12_ONLY, /* mwdma1-2 ?? CHECK 0 should be ok but slow */
+		.udma_mask	= ATA_UDMA2,
 		.port_ops	= &piix_pata_ops,
 	},
 
 	[ich_pata_33] = 	/* ICH0 - ICH at 33Mhz*/
 	{
 		.flags		= PIIX_PATA_FLAGS,
-		.pio_mask 	= 0x1f,	/* pio 0-4 */
-		.mwdma_mask	= 0x06, /* Check: maybe 0x07  */
-		.udma_mask	= ATA_UDMA2, /* UDMA33 */
+		.pio_mask 	= ATA_PIO4,
+		.mwdma_mask	= ATA_MWDMA12_ONLY, /* Check: maybe MWDMA0 is ok  */
+		.udma_mask	= ATA_UDMA2,
 		.port_ops	= &ich_pata_ops,
 	},
 
 	[ich_pata_66] = 	/* ICH controllers up to 66MHz */
 	{
 		.flags		= PIIX_PATA_FLAGS,
-		.pio_mask 	= 0x1f,	/* pio 0-4 */
-		.mwdma_mask	= 0x06, /* MWDMA0 is broken on chip */
+		.pio_mask 	= ATA_PIO4,
+		.mwdma_mask	= ATA_MWDMA12_ONLY, /* MWDMA0 is broken on chip */
 		.udma_mask	= ATA_UDMA4,
 		.port_ops	= &ich_pata_ops,
 	},
@@ -481,17 +481,17 @@ static struct ata_port_info piix_port_info[] = {
 	[ich_pata_100] =
 	{
 		.flags		= PIIX_PATA_FLAGS | PIIX_FLAG_CHECKINTR,
-		.pio_mask	= 0x1f,	/* pio0-4 */
-		.mwdma_mask	= 0x06, /* mwdma1-2 */
-		.udma_mask	= ATA_UDMA5, /* udma0-5 */
+		.pio_mask	= ATA_PIO4,
+		.mwdma_mask	= ATA_MWDMA12_ONLY,
+		.udma_mask	= ATA_UDMA5,
 		.port_ops	= &ich_pata_ops,
 	},
 
 	[ich5_sata] =
 	{
 		.flags		= PIIX_SATA_FLAGS,
-		.pio_mask	= 0x1f,	/* pio0-4 */
-		.mwdma_mask	= 0x07, /* mwdma0-2 */
+		.pio_mask	= ATA_PIO4,
+		.mwdma_mask	= ATA_MWDMA2,
 		.udma_mask	= ATA_UDMA6,
 		.port_ops	= &piix_sata_ops,
 	},
@@ -499,8 +499,8 @@ static struct ata_port_info piix_port_info[] = {
 	[ich6_sata] =
 	{
 		.flags		= PIIX_SATA_FLAGS,
-		.pio_mask	= 0x1f,	/* pio0-4 */
-		.mwdma_mask	= 0x07, /* mwdma0-2 */
+		.pio_mask	= ATA_PIO4,
+		.mwdma_mask	= ATA_MWDMA2,
 		.udma_mask	= ATA_UDMA6,
 		.port_ops	= &piix_sata_ops,
 	},
@@ -508,8 +508,8 @@ static struct ata_port_info piix_port_info[] = {
 	[ich6m_sata] =
 	{
 		.flags		= PIIX_SATA_FLAGS,
-		.pio_mask	= 0x1f,	/* pio0-4 */
-		.mwdma_mask	= 0x07, /* mwdma0-2 */
+		.pio_mask	= ATA_PIO4,
+		.mwdma_mask	= ATA_MWDMA2,
 		.udma_mask	= ATA_UDMA6,
 		.port_ops	= &piix_sata_ops,
 	},
@@ -517,8 +517,8 @@ static struct ata_port_info piix_port_info[] = {
 	[ich8_sata] =
 	{
 		.flags		= PIIX_SATA_FLAGS | PIIX_FLAG_SIDPR,
-		.pio_mask	= 0x1f,	/* pio0-4 */
-		.mwdma_mask	= 0x07, /* mwdma0-2 */
+		.pio_mask	= ATA_PIO4,
+		.mwdma_mask	= ATA_MWDMA2,
 		.udma_mask	= ATA_UDMA6,
 		.port_ops	= &piix_sata_ops,
 	},
@@ -526,8 +526,8 @@ static struct ata_port_info piix_port_info[] = {
 	[ich8_2port_sata] =
 	{
 		.flags		= PIIX_SATA_FLAGS | PIIX_FLAG_SIDPR,
-		.pio_mask	= 0x1f,	/* pio0-4 */
-		.mwdma_mask	= 0x07, /* mwdma0-2 */
+		.pio_mask	= ATA_PIO4,
+		.mwdma_mask	= ATA_MWDMA2,
 		.udma_mask	= ATA_UDMA6,
 		.port_ops	= &piix_sata_ops,
 	},
@@ -535,8 +535,8 @@ static struct ata_port_info piix_port_info[] = {
 	[tolapai_sata] =
 	{
 		.flags		= PIIX_SATA_FLAGS,
-		.pio_mask	= 0x1f,	/* pio0-4 */
-		.mwdma_mask	= 0x07, /* mwdma0-2 */
+		.pio_mask	= ATA_PIO4,
+		.mwdma_mask	= ATA_MWDMA2,
 		.udma_mask	= ATA_UDMA6,
 		.port_ops	= &piix_sata_ops,
 	},
@@ -544,8 +544,8 @@ static struct ata_port_info piix_port_info[] = {
 	[ich8m_apple_sata] =
 	{
 		.flags		= PIIX_SATA_FLAGS,
-		.pio_mask	= 0x1f,	/* pio0-4 */
-		.mwdma_mask	= 0x07, /* mwdma0-2 */
+		.pio_mask	= ATA_PIO4,
+		.mwdma_mask	= ATA_MWDMA2,
 		.udma_mask	= ATA_UDMA6,
 		.port_ops	= &piix_sata_ops,
 	},
@@ -553,9 +553,9 @@ static struct ata_port_info piix_port_info[] = {
 	[piix_pata_vmw] =
 	{
 		.flags		= PIIX_PATA_FLAGS,
-		.pio_mask	= 0x1f,	/* pio0-4 */
-		.mwdma_mask	= 0x06, /* mwdma1-2 ?? CHECK 0 should be ok but slow */
-		.udma_mask	= ATA_UDMA_MASK_40C,
+		.pio_mask	= ATA_PIO4,
+		.mwdma_mask	= ATA_MWDMA12_ONLY, /* mwdma1-2 ?? CHECK 0 should be ok but slow */
+		.udma_mask	= ATA_UDMA2,
 		.port_ops	= &piix_vmw_ops,
 	},
 
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 060bcd601f5..e7ea77cf606 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -57,6 +57,7 @@
 #include <linux/scatterlist.h>
 #include <linux/io.h>
 #include <linux/async.h>
+#include <linux/log2.h>
 #include <scsi/scsi.h>
 #include <scsi/scsi_cmnd.h>
 #include <scsi/scsi_host.h>
@@ -2389,6 +2390,7 @@ int ata_dev_configure(struct ata_device *dev)
 	dev->cylinders = 0;
 	dev->heads = 0;
 	dev->sectors = 0;
+	dev->multi_count = 0;
 
 	/*
 	 * common ATA, ATAPI feature tests
@@ -2426,8 +2428,15 @@ int ata_dev_configure(struct ata_device *dev)
 
 		dev->n_sectors = ata_id_n_sectors(id);
 
-		if (dev->id[59] & 0x100)
-			dev->multi_count = dev->id[59] & 0xff;
+		/* get current R/W Multiple count setting */
+		if ((dev->id[47] >> 8) == 0x80 && (dev->id[59] & 0x100)) {
+			unsigned int max = dev->id[47] & 0xff;
+			unsigned int cnt = dev->id[59] & 0xff;
+			/* only recognize/allow powers of two here */
+			if (is_power_of_2(max) && is_power_of_2(cnt))
+				if (cnt <= max)
+					dev->multi_count = cnt;
+		}
 
 		if (ata_id_has_lba(id)) {
 			const char *lba_desc;
@@ -6709,6 +6718,7 @@ EXPORT_SYMBOL_GPL(ata_id_c_string);
 EXPORT_SYMBOL_GPL(ata_do_dev_read_id);
 EXPORT_SYMBOL_GPL(ata_scsi_simulate);
 
+EXPORT_SYMBOL_GPL(ata_pio_queue_task);
 EXPORT_SYMBOL_GPL(ata_pio_need_iordy);
 EXPORT_SYMBOL_GPL(ata_timing_find_mode);
 EXPORT_SYMBOL_GPL(ata_timing_compute);
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index ea890911d4f..01831312c36 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -547,7 +547,7 @@ void ata_scsi_error(struct Scsi_Host *host)
 
 	/* For new EH, all qcs are finished in one of three ways -
 	 * normal completion, error completion, and SCSI timeout.
-	 * Both cmpletions can race against SCSI timeout.  When normal
+	 * Both completions can race against SCSI timeout.  When normal
 	 * completion wins, the qc never reaches EH.  When error
 	 * completion wins, the qc has ATA_QCFLAG_FAILED set.
 	 *
@@ -562,7 +562,19 @@ void ata_scsi_error(struct Scsi_Host *host)
 		int nr_timedout = 0;
 
 		spin_lock_irqsave(ap->lock, flags);
-
+		
+		/* This must occur under the ap->lock as we don't want
+		   a polled recovery to race the real interrupt handler
+		   
+		   The lost_interrupt handler checks for any completed but
+		   non-notified command and completes much like an IRQ handler.
+		   
+		   We then fall into the error recovery code which will treat
+		   this as if normal completion won the race */
+
+		if (ap->ops->lost_interrupt)
+			ap->ops->lost_interrupt(ap);
+			
 		list_for_each_entry_safe(scmd, tmp, &host->eh_cmd_q, eh_entry) {
 			struct ata_queued_cmd *qc;
 
@@ -606,6 +618,9 @@ void ata_scsi_error(struct Scsi_Host *host)
 		ap->eh_tries = ATA_EH_MAX_TRIES;
 	} else
 		spin_unlock_wait(ap->lock);
+		
+	/* If we timed raced normal completion and there is nothing to
+	   recover nr_timedout == 0 why exactly are we doing error recovery ? */
 
  repeat:
 	/* invoke error handler */
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index f93dc029dfd..8332e97a9de 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -52,6 +52,7 @@ const struct ata_port_operations ata_sff_port_ops = {
 	.softreset		= ata_sff_softreset,
 	.hardreset		= sata_sff_hardreset,
 	.postreset		= ata_sff_postreset,
+	.drain_fifo		= ata_sff_drain_fifo,
 	.error_handler		= ata_sff_error_handler,
 	.post_internal_cmd	= ata_sff_post_internal_cmd,
 
@@ -64,6 +65,8 @@ const struct ata_port_operations ata_sff_port_ops = {
 	.sff_irq_on		= ata_sff_irq_on,
 	.sff_irq_clear		= ata_sff_irq_clear,
 
+	.lost_interrupt		= ata_sff_lost_interrupt,
+
 	.port_start		= ata_sff_port_start,
 };
 EXPORT_SYMBOL_GPL(ata_sff_port_ops);
@@ -1646,7 +1649,7 @@ EXPORT_SYMBOL_GPL(ata_sff_qc_fill_rtf);
  *	RETURNS:
  *	One if interrupt was handled, zero if not (shared irq).
  */
-inline unsigned int ata_sff_host_intr(struct ata_port *ap,
+unsigned int ata_sff_host_intr(struct ata_port *ap,
 				      struct ata_queued_cmd *qc)
 {
 	struct ata_eh_info *ehi = &ap->link.eh_info;
@@ -1775,6 +1778,48 @@ irqreturn_t ata_sff_interrupt(int irq, void *dev_instance)
 EXPORT_SYMBOL_GPL(ata_sff_interrupt);
 
 /**
+ *	ata_sff_lost_interrupt	-	Check for an apparent lost interrupt
+ *	@ap: port that appears to have timed out
+ *
+ *	Called from the libata error handlers when the core code suspects
+ *	an interrupt has been lost. If it has complete anything we can and
+ *	then return. Interface must support altstatus for this faster
+ *	recovery to occur.
+ *
+ *	Locking:
+ *	Caller holds host lock
+ */
+
+void ata_sff_lost_interrupt(struct ata_port *ap)
+{
+	u8 status;
+	struct ata_queued_cmd *qc;
+
+	/* Only one outstanding command per SFF channel */
+	qc = ata_qc_from_tag(ap, ap->link.active_tag);
+	/* Check we have a live one.. */
+	if (qc == NULL ||  !(qc->flags & ATA_QCFLAG_ACTIVE))
+		return;
+	/* We cannot lose an interrupt on a polled command */
+	if (qc->tf.flags & ATA_TFLAG_POLLING)
+		return;
+	/* See if the controller thinks it is still busy - if so the command
+	   isn't a lost IRQ but is still in progress */
+	status = ata_sff_altstatus(ap);
+	if (status & ATA_BUSY)
+		return;
+
+	/* There was a command running, we are no longer busy and we have
+	   no interrupt. */
+	ata_port_printk(ap, KERN_WARNING, "lost interrupt (Status 0x%x)\n",
+								status);
+	/* Run the host interrupt logic as if the interrupt had not been
+	   lost */
+	ata_sff_host_intr(ap, qc);
+}
+EXPORT_SYMBOL_GPL(ata_sff_lost_interrupt);
+
+/**
  *	ata_sff_freeze - Freeze SFF controller port
  *	@ap: port to freeze
  *
@@ -2199,6 +2244,39 @@ void ata_sff_postreset(struct ata_link *link, unsigned int *classes)
 EXPORT_SYMBOL_GPL(ata_sff_postreset);
 
 /**
+ *	ata_sff_drain_fifo - Stock FIFO drain logic for SFF controllers
+ *	@qc: command
+ *
+ *	Drain the FIFO and device of any stuck data following a command
+ *	failing to complete. In some cases this is neccessary before a
+ *	reset will recover the device.
+ *
+ */
+
+void ata_sff_drain_fifo(struct ata_queued_cmd *qc)
+{
+	int count;
+	struct ata_port *ap;
+
+	/* We only need to flush incoming data when a command was running */
+	if (qc == NULL || qc->dma_dir == DMA_TO_DEVICE)
+		return;
+
+	ap = qc->ap;
+	/* Drain up to 64K of data before we give up this recovery method */
+	for (count = 0; (ap->ops->sff_check_status(ap) & ATA_DRQ)
+						&& count < 32768; count++)
+		ioread16(ap->ioaddr.data_addr);
+
+	/* Can become DEBUG later */
+	if (count)
+		ata_port_printk(ap, KERN_DEBUG,
+			"drained %d