Merge tag 'staging-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging/IIO updates from Greg KH:
 "Here is the big Staging and IIO driver patches for 4.16-rc1.

  There is the normal amount of new IIO drivers added, like all
  releases.

  The networking IPX and the ncpfs filesystem are moved into the staging
  tree, as they are on their way out of the kernel due to lack of use
  anymore.

  The visorbus subsystem finall has started moving out of the staging
  tree to the "real" part of the kernel, and the most and fsl-mc
  codebases are almost ready to move out, that will probably happen for
  4.17-rc1 if all goes well.

  Other than that, there is a bunch of license header cleanups in the
  tree, along with the normal amount of coding style churn that we all
  know and love for this codebase. I also got frustrated at the
  Meltdown/Spectre mess and took it out on the dgnc tty driver, deleting
  huge chunks of it that were never even being used.

  Full details of everything is in the shortlog.

  All of these patches have been in linux-next for a while with no
  reported issues"

* tag 'staging-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (627 commits)
  staging: rtlwifi: remove redundant initialization of 'cfg_cmd'
  staging: rtl8723bs: remove a couple of redundant initializations
  staging: comedi: reformat lines to 80 chars or less
  staging: lustre: separate a connection destroy from free struct kib_conn
  Staging: rtl8723bs: Use !x instead of NULL comparison
  Staging: rtl8723bs: Remove dead code
  Staging: rtl8723bs: Change names to conform to the kernel code
  staging: ccree: Fix missing blank line after declaration
  staging: rtl8188eu: remove redundant initialization of 'pwrcfgcmd'
  staging: rtlwifi: remove unused RTLHALMAC_ST and RTLPHYDM_ST
  staging: fbtft: remove unused FB_TFT_SSD1325 kconfig
  staging: comedi: dt2811: remove redundant initialization of 'ns'
  staging: wilc1000: fix alignments to match open parenthesis
  staging: wilc1000: removed unnecessary defined enums typedef
  staging: wilc1000: remove unnecessary use of parentheses
  staging: rtl8192u: remove redundant initialization of 'timeout'
  staging: sm750fb: fix CamelCase for dispSet var
  staging: lustre: lnet/selftest: fix compile error on UP build
  staging: rtl8723bs: hal_com_phycfg: Remove unneeded semicolons
  staging: rts5208: Fix "seg_no" calculation in reset_ms_card()
  ...

15 files changed, 27 insertions, 2588 deletions

diff --git a/drivers/staging/dgnc/Makefile b/drivers/staging/dgnc/Makefile
index 40ff0d007695..49633042fcc9 100644
--- a/drivers/staging/dgnc/Makefile
+++ b/drivers/staging/dgnc/Makefile
@@ -1,5 +1,4 @@
 obj-$(CONFIG_DGNC) += dgnc.o
 
 dgnc-objs :=   dgnc_cls.o dgnc_driver.o\
-               dgnc_mgmt.o dgnc_neo.o\
-               dgnc_tty.o dgnc_utils.o
+               dgnc_tty.o
diff --git a/drivers/staging/dgnc/dgnc_cls.c b/drivers/staging/dgnc/dgnc_cls.c
index 9639035fddd1..7e6cbfe4e4ee 100644
--- a/drivers/staging/dgnc/dgnc_cls.c
+++ b/drivers/staging/dgnc/dgnc_cls.c
@@ -1,16 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2003 Digi International (www.digi.com)
  *	Scott H Kilau <Scott_Kilau at digi dot com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
  */
 
 #include <linux/kernel.h>
@@ -397,7 +388,7 @@ static void cls_assert_modem_signals(struct channel_t *ch)
 	writeb(out, &ch->ch_cls_uart->mcr);
 
 	/* Give time for the UART to actually drop the signals */
-	udelay(10);
+	usleep_range(10, 20);
 }
 
 static void cls_copy_data_from_queue_to_uart(struct channel_t *ch)
@@ -1123,30 +1114,6 @@ static void cls_send_immediate_char(struct channel_t *ch, unsigned char c)
 	writeb(c, &ch->ch_cls_uart->txrx);
 }
 
-static void cls_vpd(struct dgnc_board *brd)
-{
-	ulong           vpdbase;        /* Start of io base of the card */
-	u8 __iomem           *re_map_vpdbase;/* Remapped memory of the card */
-	int i = 0;
-
-	vpdbase = pci_resource_start(brd->pdev, 3);
-	if (!vpdbase)
-		return;
-
-	re_map_vpdbase = ioremap(vpdbase, 0x400);
-
-	if (!re_map_vpdbase)
-		return;
-
-	for (i = 0; i < 0x40; i++) {
-		brd->vpd[i] = readb(re_map_vpdbase + i);
-		pr_info("%x ", brd->vpd[i]);
-	}
-	pr_info("\n");
-
-	iounmap(re_map_vpdbase);
-}
-
 struct board_ops dgnc_cls_ops = {
 	.tasklet =			cls_tasklet,
 	.intr =				cls_intr,
@@ -1154,7 +1121,6 @@ struct board_ops dgnc_cls_ops = {
 	.uart_off =			cls_uart_off,
 	.drain =			cls_drain,
 	.param =			cls_param,
-	.vpd =				cls_vpd,
 	.assert_modem_signals =		cls_assert_modem_signals,
 	.flush_uart_write =		cls_flush_uart_write,
 	.flush_uart_read =		cls_flush_uart_read,
diff --git a/drivers/staging/dgnc/dgnc_cls.h b/drivers/staging/dgnc/dgnc_cls.h
index 9dfa9682a897..d31508542261 100644
--- a/drivers/staging/dgnc/dgnc_cls.h
+++ b/drivers/staging/dgnc/dgnc_cls.h
@@ -1,16 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright 2003 Digi International (www.digi.com)
  *	Scott H Kilau <Scott_Kilau at digi dot com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
  */
 
 #ifndef _DGNC_CLS_H
diff --git a/drivers/staging/dgnc/dgnc_driver.c b/drivers/staging/dgnc/dgnc_driver.c
index d9bf5da1b8e5..5d8c2d995dcc 100644
--- a/drivers/staging/dgnc/dgnc_driver.c
+++ b/drivers/staging/dgnc/dgnc_driver.c
@@ -1,16 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2003 Digi International (www.digi.com)
  *	Scott H Kilau <Scott_Kilau at digi dot com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
  */
 
 #include <linux/kernel.h>
@@ -19,37 +10,34 @@
 #include <linux/slab.h>
 #include <linux/sched.h>
 #include "dgnc_driver.h"
-#include "dgnc_pci.h"
-#include "dgnc_mgmt.h"
 #include "dgnc_tty.h"
 #include "dgnc_cls.h"
-#include "dgnc_neo.h"
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Digi International, http://www.digi.com");
 MODULE_DESCRIPTION("Driver for the Digi International Neo and Classic PCI based product line");
 MODULE_SUPPORTED_DEVICE("dgnc");
 
-static const struct file_operations dgnc_board_fops = {
-	.owner		=	THIS_MODULE,
-	.unlocked_ioctl =	dgnc_mgmt_ioctl,
-	.open		=	dgnc_mgmt_open,
-	.release	=	dgnc_mgmt_close
-};
-
-uint			dgnc_num_boards;
+static unsigned int dgnc_num_boards;
 struct dgnc_board		*dgnc_board[MAXBOARDS];
-DEFINE_SPINLOCK(dgnc_global_lock);
-DEFINE_SPINLOCK(dgnc_poll_lock); /* Poll scheduling lock */
-uint			dgnc_major;
-int			dgnc_poll_tick = 20;	/* Poll interval - 20 ms */
-
-static struct class *dgnc_class;
+static DEFINE_SPINLOCK(dgnc_poll_lock); /* Poll scheduling lock */
 
+static int		dgnc_poll_tick = 20;	/* Poll interval - 20 ms */
 static ulong		dgnc_poll_time; /* Time of next poll */
 static uint		dgnc_poll_stop; /* Used to tell poller to stop */
 static struct timer_list dgnc_poll_timer;
 
+#define DIGI_VID				0x114F
+#define PCI_DEVICE_CLASSIC_4_DID		0x0028
+#define PCI_DEVICE_CLASSIC_8_DID		0x0029
+#define PCI_DEVICE_CLASSIC_4_422_DID		0x00D0
+#define PCI_DEVICE_CLASSIC_8_422_DID		0x00D1
+
+#define PCI_DEVICE_CLASSIC_4_PCI_NAME		"ClassicBoard 4 PCI"
+#define PCI_DEVICE_CLASSIC_8_PCI_NAME		"ClassicBoard 8 PCI"
+#define PCI_DEVICE_CLASSIC_4_422_PCI_NAME	"ClassicBoard 4 422 PCI"
+#define PCI_DEVICE_CLASSIC_8_422_PCI_NAME	"ClassicBoard 8 422 PCI"
+
 static const struct pci_device_id dgnc_pci_tbl[] = {
 	{PCI_DEVICE(DIGI_VID, PCI_DEVICE_CLASSIC_4_DID),     .driver_data = 0},
 	{PCI_DEVICE(DIGI_VID, PCI_DEVICE_CLASSIC_4_422_DID), .driver_data = 1},
@@ -70,19 +58,6 @@ static const struct board_id dgnc_ids[] = {
 	{	PCI_DEVICE_CLASSIC_4_422_PCI_NAME,	4,	0	},
 	{	PCI_DEVICE_CLASSIC_8_PCI_NAME,		8,	0	},
 	{	PCI_DEVICE_CLASSIC_8_422_PCI_NAME,	8,	0	},
-	{	PCI_DEVICE_NEO_4_PCI_NAME,		4,	0	},
-	{	PCI_DEVICE_NEO_8_PCI_NAME,		8,	0	},
-	{	PCI_DEVICE_NEO_2DB9_PCI_NAME,		2,	0	},
-	{	PCI_DEVICE_NEO_2DB9PRI_PCI_NAME,	2,	0	},
-	{	PCI_DEVICE_NEO_2RJ45_PCI_NAME,		2,	0	},
-	{	PCI_DEVICE_NEO_2RJ45PRI_PCI_NAME,	2,	0	},
-	{	PCI_DEVICE_NEO_1_422_PCI_NAME,		1,	0	},
-	{	PCI_DEVICE_NEO_1_422_485_PCI_NAME,	1,	0	},
-	{	PCI_DEVICE_NEO_2_422_485_PCI_NAME,	2,	0	},
-	{	PCI_DEVICE_NEO_EXPRESS_8_PCI_NAME,	8,	1	},
-	{	PCI_DEVICE_NEO_EXPRESS_4_PCI_NAME,	4,	1	},
-	{	PCI_DEVICE_NEO_EXPRESS_4RJ45_PCI_NAME,	4,	1	},
-	{	PCI_DEVICE_NEO_EXPRESS_8RJ45_PCI_NAME,	8,	1	},
 	{	NULL,					0,	0	}
 };
 
@@ -101,7 +76,6 @@ static struct dgnc_board *dgnc_found_board(struct pci_dev *pdev, int id)
 {
 	struct dgnc_board *brd;
 	unsigned int pci_irq;
-	int i = 0;
 	int rc = 0;
 
 	brd = kzalloc(sizeof(*brd), GFP_KERNEL);
@@ -110,16 +84,10 @@ static struct dgnc_board *dgnc_found_board(struct pci_dev *pdev, int id)
 
 	/* store the info for the board we've found */
 	brd->boardnum = dgnc_num_boards;
-	brd->vendor = dgnc_pci_tbl[id].vendor;
 	brd->device = dgnc_pci_tbl[id].device;
 	brd->pdev = pdev;
-	brd->pci_bus = pdev->bus->number;
-	brd->pci_slot = PCI_SLOT(pdev->devfn);
 	brd->name = dgnc_ids[id].name;
 	brd->maxports = dgnc_ids[id].maxports;
-	if (dgnc_ids[i].is_pci_express)
-		brd->bd_flags |= BD_IS_PCI_EXPRESS;
-	brd->dpastatus = BD_NOFEP;
 	init_waitqueue_head(&brd->state_wait);
 
 	spin_lock_init(&brd->bd_lock);
@@ -127,11 +95,6 @@ static struct dgnc_board *dgnc_found_board(struct pci_dev *pdev, int id)
 
 	brd->state		= BOARD_FOUND;
 
-	/* store which card & revision we have */
-	pci_read_config_word(pdev, PCI_SUBSYSTEM_VENDOR_ID, &brd->subvendor);
-	pci_read_config_word(pdev, PCI_SUBSYSTEM_ID, &brd->subdevice);
-	pci_read_config_byte(pdev, PCI_REVISION_ID, &brd->rev);
-
 	pci_irq = pdev->irq;
 	brd->irq = pci_irq;
 
@@ -140,9 +103,6 @@ static struct dgnc_board *dgnc_found_board(struct pci_dev *pdev, int id)
 	case PCI_DEVICE_CLASSIC_8_DID:
 	case PCI_DEVICE_CLASSIC_4_422_DID:
 	case PCI_DEVICE_CLASSIC_8_422_DID:
-
-		brd->dpatype = T_CLASSIC | T_PCIBUS;
-
 		/*
 		 * For PCI ClassicBoards
 		 * PCI Local Address (i.e. "resource" number) space
@@ -182,9 +142,6 @@ static struct dgnc_board *dgnc_found_board(struct pci_dev *pdev, int id)
 		if (rc < 0)
 			goto failed;
 
-		/* Get and store the board VPD, if it exists */
-		brd->bd_ops->vpd(brd);
-
 		/*
 		 * Enable Local Interrupt 1		  (0x1),
 		 * Local Interrupt 1 Polarity Active high (0x2),
@@ -194,55 +151,6 @@ static struct dgnc_board *dgnc_found_board(struct pci_dev *pdev, int id)
 
 		break;
 
-	case PCI_DEVICE_NEO_4_DID:
-	case PCI_DEVICE_NEO_8_DID:
-	case PCI_DEVICE_NEO_2DB9_DID:
-	case PCI_DEVICE_NEO_2DB9PRI_DID:
-	case PCI_DEVICE_NEO_2RJ45_DID:
-	case PCI_DEVICE_NEO_2RJ45PRI_DID:
-	case PCI_DEVICE_NEO_1_422_DID:
-	case PCI_DEVICE_NEO_1_422_485_DID:
-	case PCI_DEVICE_NEO_2_422_485_DID:
-	case PCI_DEVICE_NEO_EXPRESS_8_DID:
-	case PCI_DEVICE_NEO_EXPRESS_4_DID:
-	case PCI_DEVICE_NEO_EXPRESS_4RJ45_DID:
-	case PCI_DEVICE_NEO_EXPRESS_8RJ45_DID:
-
-		/*
-		 * This chip is set up 100% when we get to it.
-		 * No need to enable global interrupts or anything.
-		 */
-		if (brd->bd_flags & BD_IS_PCI_EXPRESS)
-			brd->dpatype = T_NEO_EXPRESS | T_PCIBUS;
-		else
-			brd->dpatype = T_NEO | T_PCIBUS;
-
-		brd->membase     = pci_resource_start(pdev, 0);
-		brd->membase_end = pci_resource_end(pdev, 0);
-
-		if (brd->membase & 1)
-			brd->membase &= ~3;
-		else
-			brd->membase &= ~15;
-
-		brd->bd_ops = &dgnc_neo_ops;
-
-		brd->bd_uart_offset = 0x200;
-		brd->bd_dividend = 921600;
-
-		rc = dgnc_do_remap(brd);
-
-		if (rc < 0)
-			goto failed;
-
-		/* Read and store the dvid after remapping */
-		brd->dvid = readb(brd->re_map_membase + 0x8D);
-
-		/* Get and store the board VPD, if it exists */
-		brd->bd_ops->vpd(brd);
-
-		break;
-
 	default:
 		dev_err(&brd->pdev->dev,
 			"Didn't find any compatible Neo/Classic PCI boards.\n");
@@ -273,7 +181,6 @@ static int dgnc_request_irq(struct dgnc_board *brd)
 			dev_err(&brd->pdev->dev,
 				"Failed to hook IRQ %d\n", brd->irq);
 			brd->state = BOARD_FAILED;
-			brd->dpastatus = BD_NOFEP;
 			return -ENODEV;
 		}
 	}
@@ -364,7 +271,6 @@ static int dgnc_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	}
 
 	brd->state = BOARD_READY;
-	brd->dpastatus = BD_RUNNING;
 
 	dgnc_board[dgnc_num_boards++] = brd;
 
@@ -388,32 +294,7 @@ static struct pci_driver dgnc_driver = {
 
 static int dgnc_start(void)
 {
-	int rc = 0;
 	unsigned long flags;
-	struct device *dev;
-
-	rc = register_chrdev(0, "dgnc", &dgnc_board_fops);
-	if (rc < 0) {
-		pr_err(DRVSTR ": Can't register dgnc driver device (%d)\n", rc);
-		return rc;
-	}
-	dgnc_major = rc;
-
-	dgnc_class = class_create(THIS_MODULE, "dgnc_mgmt");
-	if (IS_ERR(dgnc_class)) {
-		rc = PTR_ERR(dgnc_class);
-		pr_err(DRVSTR ": Can't create dgnc_mgmt class (%d)\n", rc);
-		goto failed_class;
-	}
-
-	dev = device_create(dgnc_class, NULL,
-			    MKDEV(dgnc_major, 0),
-			NULL, "dgnc_mgmt");
-	if (IS_ERR(dev)) {
-		rc = PTR_ERR(dev);
-		pr_err(DRVSTR ": Can't create device (%d)\n", rc);
-		goto failed_device;
-	}
 
 	/* Start the poller */
 	spin_lock_irqsave(&dgnc_poll_lock, flags);
@@ -425,13 +306,6 @@ static int dgnc_start(void)
 	add_timer(&dgnc_poll_timer);
 
 	return 0;
-
-failed_device:
-	class_destroy(dgnc_class);
-failed_class:
-	unregister_chrdev(dgnc_major, "dgnc");
-
-	return rc;
 }
 
 /* Free all the memory associated with a board */
@@ -495,10 +369,6 @@ static void cleanup(void)
 	/* Turn off poller right away. */
 	del_timer_sync(&dgnc_poll_timer);
 
-	device_destroy(dgnc_class, MKDEV(dgnc_major, 0));
-	class_destroy(dgnc_class);
-	unregister_chrdev(dgnc_major, "dgnc");
-
 	for (i = 0; i < dgnc_num_boards; ++i) {
 		dgnc_cleanup_tty(dgnc_board[i]);
 		dgnc_cleanup_board(dgnc_board[i]);
diff --git a/drivers/staging/dgnc/dgnc_driver.h b/drivers/staging/dgnc/dgnc_driver.h
index efdb11a5e27f..b4d9f714c60a 100644
--- a/drivers/staging/dgnc/dgnc_driver.h
+++ b/drivers/staging/dgnc/dgnc_driver.h
@@ -1,16 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright 2003 Digi International (www.digi.com)
  *      Scott H Kilau <Scott_Kilau at digi dot com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
  */
 
 #ifndef _DGNC_DRIVER_H
@@ -82,42 +73,27 @@ struct board_ops {
 	void (*uart_off)(struct channel_t *ch);
 	int  (*drain)(struct tty_struct *tty, uint seconds);
 	void (*param)(struct tty_struct *tty);
-	void (*vpd)(struct dgnc_board *brd);
 	void (*assert_modem_signals)(struct channel_t *ch);
 	void (*flush_uart_write)(struct channel_t *ch);
 	void (*flush_uart_read)(struct channel_t *ch);
 	void (*disable_receiver)(struct channel_t *ch);
 	void (*enable_receiver)(struct channel_t *ch);
-	void (*send_break)(struct channel_t *ch, int);
+	void (*send_break)(struct channel_t *ch, int msec);
 	void (*send_start_character)(struct channel_t *ch);
 	void (*send_stop_character)(struct channel_t *ch);
 	void (*copy_data_from_queue_to_uart)(struct channel_t *ch);
 	uint (*get_uart_bytes_left)(struct channel_t *ch);
-	void (*send_immediate_char)(struct channel_t *ch, unsigned char);
+	void (*send_immediate_char)(struct channel_t *ch, unsigned char c);
 };
 
-/* Device flag definitions for bd_flags. */
-
-#define BD_IS_PCI_EXPRESS     0x0001	  /* Is a PCI Express board */
-
 /**
  * struct dgnc_board - Per board information.
  * @boardnum: Board number (0 - 32).
  *
  * @name: Product name.
  * @pdev: Pointer to the pci_dev structure.
- * @bd_flags: Board flags.
- * @vendor: PCI vendor ID.
  * @device: PCI device ID.
- * @subvendor: PCI subsystem vendor ID.
- * @subdevice: PCI subsystem device ID.
- * @rev: PCI revision ID.
- * @pci_bus: PCI bus value.
- * @pci_slot: PCI slot value.
  * @maxports: Maximum ports this board can handle.
- * @dvid: Board specific device ID.
- * @vpd: VPD of this board, if found.
- * @serial_num: Serial number of this board, if found in VPD.
  * @bd_lock: Used to protect board.
  * @bd_intr_lock: Protect poller tasklet and interrupt routine from each other.
  * @state: State of the card.
@@ -135,8 +111,6 @@ struct board_ops {
  * @serial_name: Serial driver name.
  * @print_dirver: Pointer to the print driver.
  * @print_name: Print driver name.
- * @dpatype: Board type as defined by DPA.
- * @dpastatus: Board status as defined by DPA.
  * @bd_dividend: Board/UART's specific dividend.
  * @bd_ops: Pointer to board operations structure.
  */
@@ -144,18 +118,8 @@ struct dgnc_board {
 	int		boardnum;
 	char		*name;
 	struct pci_dev	*pdev;
-	unsigned long	bd_flags;
-	u16		vendor;
 	u16		device;
-	u16		subvendor;
-	u16		subdevice;
-	unsigned char	rev;
-	uint		pci_bus;
-	uint		pci_slot;
 	uint		maxports;
-	unsigned char	dvid;
-	unsigned char	vpd[128];
-	unsigned char	serial_num[20];
 
 	/* used to protect the board */
 	spinlock_t	bd_lock;
@@ -189,9 +153,6 @@ struct dgnc_board {
 	struct tty_driver *print_driver;
 	char		print_name[200];
 
-	u16		dpatype;
-	u16		dpastatus;
-
 	uint		bd_dividend;
 
 	struct board_ops *bd_ops;
@@ -285,7 +246,6 @@ struct un_t {
  * @ch_wopen: Waiting for open process count.
  * @ch_mostat: FEP output modem status.
  * @ch_mistat: FEP input modem status.
- * @chc_neo_uart: Pointer to the mapped neo UART struct
  * @ch_cls_uart:  Pointer to the mapped cls UART struct
  * @ch_cached_lsr: Cached value of the LSR register.
  * @ch_rqueue: Read queue buffer, malloc'ed.
@@ -344,7 +304,6 @@ struct channel_t {
 	unsigned char	ch_mostat;
 	unsigned char	ch_mistat;
 
-	struct neo_uart_struct __iomem *ch_neo_uart;
 	struct cls_uart_struct __iomem *ch_cls_uart;
 
 	unsigned char	ch_cached_lsr;
@@ -381,11 +340,6 @@ struct channel_t {
 	ulong		ch_xoff_sends;
 };
 
-extern uint		dgnc_major;		/* Our driver/mgmt major */
-extern int		dgnc_poll_tick;		/* Poll interval - 20 ms */
-extern spinlock_t	dgnc_global_lock;	/* Driver global spinlock */
-extern spinlock_t	dgnc_poll_lock;		/* Poll scheduling lock */
-extern uint		dgnc_num_boards;	/* Total number of boards */
 extern struct dgnc_board *dgnc_board[MAXBOARDS];/* Array of boards */
 
 #endif	/* _DGNC_DRIVER_H */
diff --git a/drivers/staging/dgnc/dgnc_mgmt.c b/drivers/staging/dgnc/dgnc_mgmt.c
deleted file mode 100644
index 3ca473b47daf..000000000000
--- a/drivers/staging/dgnc/dgnc_mgmt.c
+++ /dev/null
@@ -1,248 +0,0 @@
-/*
- * Copyright 2003 Digi International (www.digi.com)
- *	Scott H Kilau <Scott_Kilau at digi dot com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
- */
-
-/*
- * This file implements the mgmt functionality for the
- * Neo and ClassicBoard based product lines.
- */
-
-#include <linux/kernel.h>
-#include <linux/ctype.h>
-#include <linux/sched.h>
-#include <linux/interrupt.h>
-#include <linux/serial_reg.h>
-#include <linux/termios.h>
-#include <linux/uaccess.h>
-
-#include "dgnc_driver.h"
-#include "dgnc_pci.h"
-#include "dgnc_mgmt.h"
-
-/* Our "in use" variables, to enforce 1 open only */
-static int dgnc_mgmt_in_use[MAXMGMTDEVICES];
-
-/**
- * dgnc_mgmt_open() - Open the mgmt/downld/dpa device.
- */
-int dgnc_mgmt_open(struct inode *inode, struct file *file)
-{
-	unsigned long flags;
-	unsigned int minor = iminor(inode);
-	int rc = 0;
-
-	spin_lock_irqsave(&dgnc_global_lock, flags);
-
-	if (minor >= MAXMGMTDEVICES) {
-		rc = -ENXIO;
-		goto out;
-	}
-	/* Only allow 1 open at a time on mgmt device */
-	if (dgnc_mgmt_in_use[minor]) {
-		rc = -EBUSY;
-		goto out;
-	}
-	dgnc_mgmt_in_use[minor]++;
-
-out:
-	spin_unlock_irqrestore(&dgnc_global_lock, flags);
-
-	return rc;
-}
-
-/**
- * dgnc_mgmt_close() - Close the mgmt/dpa device
- */
-int dgnc_mgmt_close(struct inode *inode, struct file *file)
-{
-	unsigned long flags;
-	unsigned int minor = iminor(inode);
-	int rc = 0;
-
-	spin_lock_irqsave(&dgnc_global_lock, flags);
-
-	if (minor >= MAXMGMTDEVICES) {
-		rc = -ENXIO;
-		goto out;
-	}
-	dgnc_mgmt_in_use[minor] = 0;
-
-out:
-	spin_unlock_irqrestore(&dgnc_global_lock, flags);
-
-	return rc;
-}
-
-/**
- * dgnc_mgmt_ioctl() - Ioctl the mgmt/dpa device.
- */
-long dgnc_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
-{
-	unsigned long flags;
-	void __user *uarg = (void __user *)arg;
-
-	switch (cmd) {
-	case DIGI_GETDD:
-	{
-		/*
-		 * This returns the total number of boards
-		 * in the system, as well as driver version
-		 * and has space for a reserved entry
-		 */
-		struct digi_dinfo ddi;
-
-		spin_lock_irqsave(&dgnc_global_lock, flags);
-
-		memset(&ddi, 0, sizeof(ddi));
-		ddi.dinfo_nboards = dgnc_num_boards;
-		sprintf(ddi.dinfo_version, "%s", DG_PART);
-
-		spin_unlock_irqrestore(&dgnc_global_lock, flags);
-
-		if (copy_to_user(uarg, &ddi, sizeof(ddi)))
-			return -EFAULT;
-
-		break;
-	}
-
-	case DIGI_GETBD:
-	{
-		int brd;
-
-		struct digi_info di;
-
-		if (copy_from_user(&brd, uarg, sizeof(int)))
-			return -EFAULT;
-
-		if (brd < 0 || brd >= dgnc_num_boards)
-			return -ENODEV;
-
-		memset(&di, 0, sizeof(di));
-
-		di.info_bdnum = brd;
-
-		spin_lock_irqsave(&dgnc_board[brd]->bd_lock, flags);
-
-		di.info_bdtype = dgnc_board[brd]->dpatype;
-		di.info_bdstate = dgnc_board[brd]->dpastatus;
-		di.info_ioport = 0;
-		di.info_physaddr = (ulong)dgnc_board[brd]->membase;
-		di.info_physsize = (ulong)dgnc_board[brd]->membase
-			- dgnc_board[brd]->membase_end;
-		if (dgnc_board[brd]->state != BOARD_FAILED)
-			di.info_nports = dgnc_board[brd]->nasync;
-		else
-			di.info_nports = 0;
-
-		spin_unlock_irqrestore(&dgnc_board[brd]->bd_lock, flags);
-
-		if (copy_to_user(uarg, &di, sizeof(di)))
-			return -EFAULT;
-
-		break;
-	}
-
-	case DIGI_GET_NI_INFO:
-	{
-		struct channel_t *ch;
-		struct ni_info ni;
-		unsigned char mstat = 0;
-		uint board = 0;
-		uint channel = 0;
-
-		if (copy_from_user(&ni, uarg, sizeof(ni)))
-			return -EFAULT;
-
-		board = ni.board;
-		channel = ni.channel;
-
-		if (board >= dgnc_num_boards)
-			return -ENODEV;
-
-		if (channel >= dgnc_board[board]->nasync)
-			return -ENODEV;
-
-		ch = dgnc_board[board]->channels[channel];
-
-		if (!ch)
-			return -ENODEV;
-
-		memset(&ni, 0, sizeof(ni));
-		ni.board = board;
-		ni.channel = channel;
-
-		spin_lock_irqsave(&ch->ch_lock, flags);
-
-		mstat = ch->ch_mostat | ch->ch_mistat;
-
-		if (mstat & UART_MCR_DTR) {
-			ni.mstat |= TIOCM_DTR;
-			ni.dtr = TIOCM_DTR;
-		}
-		if (mstat & UART_MCR_RTS) {
-			ni.mstat |= TIOCM_RTS;
-			ni.rts = TIOCM_RTS;
-		}
-		if (mstat & UART_MSR_CTS) {
-			ni.mstat |= TIOCM_CTS;
-			ni.cts = TIOCM_CTS;
-		}
-		if (mstat & UART_MSR_RI) {
-			ni.mstat |= TIOCM_RI;
-			ni.ri = TIOCM_RI;
-		}
-		if (mstat & UART_MSR_DCD) {
-			ni.mstat |= TIOCM_CD;
-			ni.dcd = TIOCM_CD;
-		}
-		if (mstat & UART_MSR_DSR)
-			ni.mstat |= TIOCM_DSR;
-
-		ni.iflag = ch->ch_c_iflag;
-		ni.oflag = ch->ch_c_oflag;
-		ni.cflag = ch->ch_c_cflag;
-		ni.lflag = ch->ch_c_lflag;
-
-		if (ch->ch_digi.digi_flags & CTSPACE ||
-		    ch->ch_c_cflag & CRTSCTS)
-			ni.hflow = 1;
-		else
-			ni.hflow = 0;
-
-		if ((ch->ch_flags & CH_STOPI) ||
-		    (ch->ch_flags & CH_FORCED_STOPI))
-			ni.recv_stopped = 1;
-		else
-			ni.recv_stopped = 0;
-
-		if ((ch->ch_flags & CH_STOP) || (ch->ch_flags & CH_FORCED_STOP))
-			ni.xmit_stopped = 1;
-		else
-			ni.xmit_stopped = 0;
-
-		ni.curtx = ch->ch_txcount;
-		ni.currx = ch->ch_rxcount;
-
-		ni.baud = ch->ch_old_baud;
-
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-		if (copy_to_user(uarg, &ni, sizeof(ni)))
-			return -EFAULT;
-
-		break;
-	}
-	}
-	return 0;
-}
diff --git a/drivers/staging/dgnc/dgnc_mgmt.h b/drivers/staging/dgnc/dgnc_mgmt.h
deleted file mode 100644
index a7a5770d7630..000000000000
--- a/drivers/staging/dgnc/dgnc_mgmt.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Copyright 2003 Digi International (www.digi.com)
- *	Scott H Kilau <Scott_Kilau at digi dot com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
- */
-
-#ifndef _DGNC_MGMT_H
-#define _DGNC_MGMT_H
-
-#define MAXMGMTDEVICES 8
-
-int dgnc_mgmt_open(struct inode *inode, struct file *file);
-int dgnc_mgmt_close(struct inode *inode, struct file *file);
-long dgnc_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
-
-#endif	/* _DGNC_MGMT_H */
-
diff --git a/drivers/staging/dgnc/dgnc_neo.c b/drivers/staging/dgnc/dgnc_neo.c
deleted file mode 100644
index 0ae229c3aaaa..000000000000
--- a/drivers/staging/dgnc/dgnc_neo.c
+++ /dev/null
@@ -1,1690 +0,0 @@
-/*
- * Copyright 2003 Digi International (www.digi.com)
- *	Scott H Kilau <Scott_Kilau at digi dot com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
- */
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/interrupt.h>
-#include <linux/delay.h>
-#include <linux/io.h>
-#include <linux/serial.h>
-#include <linux/serial_reg.h>
-
-#include "dgnc_driver.h"
-#include "dgnc_neo.h"
-#include "dgnc_tty.h"
-
-static inline void neo_parse_lsr(struct dgnc_board *brd, uint port);
-static inline void neo_parse_isr(struct dgnc_board *brd, uint port);
-static void neo_copy_data_from_uart_to_queue(struct channel_t *ch);
-static inline void neo_clear_break(struct channel_t *ch, int force);
-static inline void neo_set_cts_flow_control(struct channel_t *ch);
-static inline void neo_set_rts_flow_control(struct channel_t *ch);
-static inline void neo_set_ixon_flow_control(struct channel_t *ch);
-static inline void neo_set_ixoff_flow_control(struct channel_t *ch);
-static inline void neo_set_no_output_flow_control(struct channel_t *ch);
-static inline void neo_set_no_input_flow_control(struct channel_t *ch);
-static inline void neo_set_new_start_stop_chars(struct channel_t *ch);
-static void neo_parse_modem(struct channel_t *ch, unsigned char signals);
-static void neo_tasklet(unsigned long data);
-static void neo_vpd(struct dgnc_board *brd);
-static void neo_uart_init(struct channel_t *ch);
-static void neo_uart_off(struct channel_t *ch);
-static int neo_drain(struct tty_struct *tty, uint seconds);
-static void neo_param(struct tty_struct *tty);
-static void neo_assert_modem_signals(struct channel_t *ch);
-static void neo_flush_uart_write(struct channel_t *ch);
-static void neo_flush_uart_read(struct channel_t *ch);
-static void neo_disable_receiver(struct channel_t *ch);
-static void neo_enable_receiver(struct channel_t *ch);
-static void neo_send_break(struct channel_t *ch, int msecs);
-static void neo_send_start_character(struct channel_t *ch);
-static void neo_send_stop_character(struct channel_t *ch);
-static void neo_copy_data_from_queue_to_uart(struct channel_t *ch);
-static uint neo_get_uart_bytes_left(struct channel_t *ch);
-static void neo_send_immediate_char(struct channel_t *ch, unsigned char c);
-static irqreturn_t neo_intr(int irq, void *voidbrd);
-
-struct board_ops dgnc_neo_ops = {
-	.tasklet =			neo_tasklet,
-	.intr =				neo_intr,
-	.uart_init =			neo_uart_init,
-	.uart_off =			neo_uart_off,
-	.drain =			neo_drain,
-	.param =			neo_param,
-	.vpd =				neo_vpd,
-	.assert_modem_signals =		neo_assert_modem_signals,
-	.flush_uart_write =		neo_flush_uart_write,
-	.flush_uart_read =		neo_flush_uart_read,
-	.disable_receiver =		neo_disable_receiver,
-	.enable_receiver =		neo_enable_receiver,
-	.send_break =			neo_send_break,
-	.send_start_character =		neo_send_start_character,
-	.send_stop_character =		neo_send_stop_character,
-	.copy_data_from_queue_to_uart =	neo_copy_data_from_queue_to_uart,
-	.get_uart_bytes_left =		neo_get_uart_bytes_left,
-	.send_immediate_char =		neo_send_immediate_char
-};
-
-/*
- * This function allows calls to ensure that all outstanding
- * PCI writes have been completed, by doing a PCI read against
- * a non-destructive, read-only location on the Neo card.
- *
- * In this case, we are reading the DVID (Read-only Device Identification)
- * value of the Neo card.
- */
-static inline void neo_pci_posting_flush(struct dgnc_board *bd)
-{
-	readb(bd->re_map_membase + 0x8D);
-}
-
-static inline void neo_set_cts_flow_control(struct channel_t *ch)
-{
-	unsigned char ier = readb(&ch->ch_neo_uart->ier);
-	unsigned char efr = readb(&ch->ch_neo_uart->efr);
-
-	/* Turn on auto CTS flow control */
-	ier |= UART_17158_IER_CTSDSR;
-	efr |= (UART_17158_EFR_ECB | UART_17158_EFR_CTSDSR);
-
-	/* Turn off auto Xon flow control */
-	efr &= ~UART_17158_EFR_IXON;
-
-	/*
-	 * Why? Because Exar's spec says we have to zero it
-	 * out before setting it
-	 */
-	writeb(0, &ch->ch_neo_uart->efr);
-
-	/* Turn on UART enhanced bits */
-	writeb(efr, &ch->ch_neo_uart->efr);
-
-	/* Turn on table D, with 8 char hi/low watermarks */
-	writeb(UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_4DELAY,
-	       &ch->ch_neo_uart->fctr);
-
-	/* Feed the UART our trigger levels */
-	writeb(8, &ch->ch_neo_uart->tfifo);
-	ch->ch_t_tlevel = 8;
-
-	writeb(ier, &ch->ch_neo_uart->ier);
-
-	neo_pci_posting_flush(ch->ch_bd);
-}
-
-static inline void neo_set_rts_flow_control(struct channel_t *ch)
-{
-	unsigned char ier = readb(&ch->ch_neo_uart->ier);
-	unsigned char efr = readb(&ch->ch_neo_uart->efr);
-
-	/* Turn on auto RTS flow control */
-	ier |= UART_17158_IER_RTSDTR;
-	efr |= (UART_17158_EFR_ECB | UART_17158_EFR_RTSDTR);
-
-	/* Turn off auto Xoff flow control */
-	ier &= ~UART_17158_IER_XOFF;
-	efr &= ~UART_17158_EFR_IXOFF;
-
-	/*
-	 * Why? Because Exar's spec says we have to zero it
-	 * out before setting it
-	 */
-	writeb(0, &ch->ch_neo_uart->efr);
-
-	/* Turn on UART enhanced bits */
-	writeb(efr, &ch->ch_neo_uart->efr);
-
-	writeb(UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_4DELAY,
-	       &ch->ch_neo_uart->fctr);
-	ch->ch_r_watermark = 4;
-
-	writeb(32, &ch->ch_neo_uart->rfifo);
-	ch->ch_r_tlevel = 32;
-
-	writeb(ier, &ch->ch_neo_uart->ier);
-
-	/*
-	 * From the Neo UART spec sheet:
-	 * The auto RTS/DTR function must be started by asserting
-	 * RTS/DTR# output pin (MCR bit-0 or 1 to logic 1 after
-	 * it is enabled.
-	 */
-	ch->ch_mostat |= UART_MCR_RTS;
-
-	neo_pci_posting_flush(ch->ch_bd);
-}
-
-static inline void neo_set_ixon_flow_control(struct channel_t *ch)
-{
-	unsigned char ier = readb(&ch->ch_neo_uart->ier);
-	unsigned char efr = readb(&ch->ch_neo_uart->efr);
-
-	/* Turn off auto CTS flow control */
-	ier &= ~UART_17158_IER_CTSDSR;
-	efr &= ~UART_17158_EFR_CTSDSR;
-
-	/* Turn on auto Xon flow control */
-	efr |= (UART_17158_EFR_ECB | UART_17158_EFR_IXON);
-
-	/*
-	 * Why? Because Exar's spec says we have to zero it
-	 * out before setting it
-	 */
-	writeb(0, &ch->ch_neo_uart->efr);
-
-	/* Turn on UART enhanced bits */
-	writeb(efr, &ch->ch_neo_uart->efr);
-
-	writeb(UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY,
-	       &ch->ch_neo_uart->fctr);
-	ch->ch_r_watermark = 4;
-
-	writeb(32, &ch->ch_neo_uart->rfifo);
-	ch->ch_r_tlevel = 32;
-
-	/* Tell UART what start/stop chars it should be looking for */
-	writeb(ch->ch_startc, &ch->ch_neo_uart->xonchar1);
-	writeb(0, &ch->ch_neo_uart->xonchar2);
-
-	writeb(ch->ch_stopc, &ch->ch_neo_uart->xoffchar1);
-	writeb(0, &ch->ch_neo_uart->xoffchar2);
-
-	writeb(ier, &ch->ch_neo_uart->ier);
-
-	neo_pci_posting_flush(ch->ch_bd);
-}
-
-static inline void neo_set_ixoff_flow_control(struct channel_t *ch)
-{
-	unsigned char ier = readb(&ch->ch_neo_uart->ier);
-	unsigned char efr = readb(&ch->ch_neo_uart->efr);
-
-	/* Turn off auto RTS flow control */
-	ier &= ~UART_17158_IER_RTSDTR;
-	efr &= ~UART_17158_EFR_RTSDTR;
-
-	/* Turn on auto Xoff flow control */
-	ier |= UART_17158_IER_XOFF;
-	efr |= (UART_17158_EFR_ECB | UART_17158_EFR_IXOFF);
-
-	/*
-	 * Why? Because Exar's spec says we have to zero it
-	 * out before setting it
-	 */
-	writeb(0, &ch->ch_neo_uart->efr);
-
-	/* Turn on UART enhanced bits */
-	writeb(efr, &ch->ch_neo_uart->efr);
-
-	/* Turn on table D, with 8 char hi/low watermarks */
-	writeb(UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY,
-	       &ch->ch_neo_uart->fctr);
-
-	writeb(8, &ch->ch_neo_uart->tfifo);
-	ch->ch_t_tlevel = 8;
-
-	/* Tell UART what start/stop chars it should be looking for */
-	writeb(ch->ch_startc, &ch->ch_neo_uart->xonchar1);
-	writeb(0, &ch->ch_neo_uart->xonchar2);
-
-	writeb(ch->ch_stopc, &ch->ch_neo_uart->xoffchar1);
-	writeb(0, &ch->ch_neo_uart->xoffchar2);
-
-	writeb(ier, &ch->ch_neo_uart->ier);
-
-	neo_pci_posting_flush(ch->ch_bd);
-}
-
-static inline void neo_set_no_input_flow_control(struct channel_t *ch)
-{
-	unsigned char ier = readb(&ch->ch_neo_uart->ier);
-	unsigned char efr = readb(&ch->ch_neo_uart->efr);
-
-	/* Turn off auto RTS flow control */
-	ier &= ~UART_17158_IER_RTSDTR;
-	efr &= ~UART_17158_EFR_RTSDTR;
-
-	/* Turn off auto Xoff flow control */
-	ier &= ~UART_17158_IER_XOFF;
-	if (ch->ch_c_iflag & IXON)
-		efr &= ~(UART_17158_EFR_IXOFF);
-	else
-		efr &= ~(UART_17158_EFR_ECB | UART_17158_EFR_IXOFF);
-
-	/*
-	 * Why? Because Exar's spec says we have to zero
-	 * it out before setting it
-	 */
-	writeb(0, &ch->ch_neo_uart->efr);
-
-	/* Turn on UART enhanced bits */
-	writeb(efr, &ch->ch_neo_uart->efr);
-
-	/* Turn on table D, with 8 char hi/low watermarks */
-	writeb(UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY,
-	       &ch->ch_neo_uart->fctr);
-
-	ch->ch_r_watermark = 0;
-
-	writeb(16, &ch->ch_neo_uart->tfifo);
-	ch->ch_t_tlevel = 16;
-
-	writeb(16, &ch->ch_neo_uart->rfifo);
-	ch->ch_r_tlevel = 16;
-
-	writeb(ier, &ch->ch_neo_uart->ier);
-
-	neo_pci_posting_flush(ch->ch_bd);
-}
-
-static inline void neo_set_no_output_flow_control(struct channel_t *ch)
-{
-	unsigned char ier = readb(&ch->ch_neo_uart->ier);
-	unsigned char efr = readb(&ch->ch_neo_uart->efr);
-
-	/* Turn off auto CTS flow control */
-	ier &= ~UART_17158_IER_CTSDSR;
-	efr &= ~UART_17158_EFR_CTSDSR;
-
-	/* Turn off auto Xon flow control */
-	if (ch->ch_c_iflag & IXOFF)
-		efr &= ~UART_17158_EFR_IXON;
-	else
-		efr &= ~(UART_17158_EFR_ECB | UART_17158_EFR_IXON);
-
-	/*
-	 * Why? Because Exar's spec says we have to zero it
-	 * out before setting it
-	 */
-	writeb(0, &ch->ch_neo_uart->efr);
-
-	/* Turn on UART enhanced bits */
-	writeb(efr, &ch->ch_neo_uart->efr);
-
-	/* Turn on table D, with 8 char hi/low watermarks */
-	writeb(UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY,
-	       &ch->ch_neo_uart->fctr);
-
-	ch->ch_r_watermark = 0;
-
-	writeb(16, &ch->ch_neo_uart->tfifo);
-	ch->ch_t_tlevel = 16;
-
-	writeb(16, &ch->ch_neo_uart->rfifo);
-	ch->ch_r_tlevel = 16;
-
-	writeb(ier, &ch->ch_neo_uart->ier);
-
-	neo_pci_posting_flush(ch->ch_bd);
-}
-
-/* change UARTs start/stop chars */
-static inline void neo_set_new_start_stop_chars(struct channel_t *ch)
-{
-	/* if hardware flow control is set, then skip this whole thing */
-	if (ch->ch_digi.digi_flags & (CTSPACE | RTSPACE) ||
-	    ch->ch_c_cflag & CRTSCTS)
-		return;
-
-	/* Tell UART what start/stop chars it should be looking for */
-	writeb(ch->ch_startc, &ch->ch_neo_uart->xonchar1);
-	writeb(0, &ch->ch_neo_uart->xonchar2);
-
-	writeb(ch->ch_stopc, &ch->ch_neo_uart->xoffchar1);
-	writeb(0, &ch->ch_neo_uart->xoffchar2);
-
-	neo_pci_posting_flush(ch->ch_bd);
-}
-
-/* No locks are assumed to be held when calling this function. */
-static inline void neo_clear_break(struct channel_t *ch, int force)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-	if (!ch->ch_stop_sending_break) {
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		return;
-	}
-
-	if (ch->ch_flags & CH_BREAK_SENDING) {
-		if (force ||
-		    time_after_eq(jiffies, ch->ch_stop_sending_break)) {
-			unsigned char temp = readb(&ch->ch_neo_uart->lcr);
-
-			writeb((temp & ~UART_LCR_SBC), &ch->ch_neo_uart->lcr);
-			neo_pci_posting_flush(ch->ch_bd);
-			ch->ch_flags &= ~(CH_BREAK_SENDING);
-			ch->ch_stop_sending_break = 0;
-		}
-	}
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-}
-
-/* Parse the ISR register. */
-static inline void neo_parse_isr(struct dgnc_board *brd, uint port)
-{
-	struct channel_t *ch;
-	unsigned char isr;
-	unsigned char cause;
-	unsigned long flags;
-
-	ch = brd->channels[port];
-	if (!ch)
-		return;
-
-	/* Here we try to figure out what caused the interrupt to happen */
-	while (1) {
-		isr = readb(&ch->ch_neo_uart->isr_fcr);
-
-		if (isr & UART_IIR_NO_INT)
-			break;
-
-		/*
-		 * Yank off the upper 2 bits,
-		 * which just show that the FIFO's are enabled.
-		 */
-		isr &= ~(UART_17158_IIR_FIFO_ENABLED);
-
-		if (isr & (UART_17158_IIR_RDI_TIMEOUT | UART_IIR_RDI)) {
-			/* Read data from uart -> queue */
-			neo_copy_data_from_uart_to_queue(ch);
-			/*
-			 * Call our tty layer to enforce queue
-			 * flow control if needed.
-			 */
-			spin_lock_irqsave(&ch->ch_lock, flags);
-			dgnc_check_queue_flow_control(ch);
-			spin_unlock_irqrestore(&ch->ch_lock, flags);
-		}
-
-		if (isr & UART_IIR_THRI) {
-			spin_lock_irqsave(&ch->ch_lock, flags);
-			ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);
-			spin_unlock_irqrestore(&ch->ch_lock, flags);
-			neo_copy_data_from_queue_to_uart(ch);
-		}
-
-		if (isr & UART_17158_IIR_XONXOFF) {
-			cause = readb(&ch->ch_neo_uart->xoffchar1);
-
-			/*
-			 * Since the UART detected either an XON or
-			 * XOFF match, we need to figure out which
-			 * one it was, so we can suspend or resume data flow.
-			 */
-			if (cause == UART_17158_XON_DETECT) {
-				/* resume output if stopped */
-				if (brd->channels[port]->ch_flags & CH_STOP) {
-					spin_lock_irqsave(&ch->ch_lock,
-							  flags);
-					ch->ch_flags &= ~(CH_STOP);
-					spin_unlock_irqrestore(&ch->ch_lock,
-							       flags);
-				}
-			} else if (cause == UART_17158_XOFF_DETECT) {
-				if (!(brd->channels[port]->ch_flags &
-				      CH_STOP)) {
-					spin_lock_irqsave(&ch->ch_lock,
-							  flags);
-					ch->ch_flags |= CH_STOP;
-					spin_unlock_irqrestore(&ch->ch_lock,
-							       flags);
-				}
-			}
-		}
-
-		if (isr & UART_17158_IIR_HWFLOW_STATE_CHANGE) {
-			/*
-			 * If we get here, this means the hardware is
-			 * doing auto flow control. Check to see whether
-			 * RTS/DTR or CTS/DSR caused this interrupt.
-			 */
-			cause = readb(&ch->ch_neo_uart->mcr);
-			/* Which pin is doing auto flow? RTS or DTR? */
-			if ((cause & 0x4) == 0) {
-				if (cause & UART_MCR_RTS) {
-					spin_lock_irqsave(&ch->ch_lock,
-							  flags);
-					ch->ch_mostat |= UART_MCR_RTS;
-					spin_unlock_irqrestore(&ch->ch_lock,
-							       flags);
-				} else {
-					spin_lock_irqsave(&ch->ch_lock,
-							  flags);
-					ch->ch_mostat &= ~(UART_MCR_RTS);
-					spin_unlock_irqrestore(&ch->ch_lock,
-							       flags);
-				}
-			} else {
-				if (cause & UART_MCR_DTR) {
-					spin_lock_irqsave(&ch->ch_lock,
-							  flags);
-					ch->ch_mostat |= UART_MCR_DTR;
-					spin_unlock_irqrestore(&ch->ch_lock,
-							       flags);
-				} else {
-					spin_lock_irqsave(&ch->ch_lock,
-							  flags);
-					ch->ch_mostat &= ~(UART_MCR_DTR);
-					spin_unlock_irqrestore(&ch->ch_lock,
-							       flags);
-				}
-			}
-		}
-
-		neo_parse_modem(ch, readb(&ch->ch_neo_uart->msr));
-	}
-}
-
-static inline void neo_parse_lsr(struct dgnc_board *brd, uint port)
-{
-	struct channel_t *ch;
-	int linestatus;
-	unsigned long flags;
-
-	if (!brd)
-		return;
-
-	if (port >= brd->maxports)
-		return;
-
-	ch = brd->channels[port];
-	if (!ch)
-		return;
-
-	linestatus = readb(&ch->ch_neo_uart->lsr);
-
-	ch->ch_cached_lsr |= linestatus;
-
-	if (ch->ch_cached_lsr & UART_LSR_DR) {
-		neo_copy_data_from_uart_to_queue(ch);
-		spin_lock_irqsave(&ch->ch_lock, flags);
-		dgnc_check_queue_flow_control(ch);
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-	}
-
-	/*
-	 * The next 3 tests should *NOT* happen, as the above test
-	 * should encapsulate all 3... At least, thats what Exar says.
-	 */
-
-	if (linestatus & UART_LSR_PE)
-		ch->ch_err_parity++;
-
-	if (linestatus & UART_LSR_FE)
-		ch->ch_err_frame++;
-
-	if (linestatus & UART_LSR_BI)
-		ch->ch_err_break++;
-
-	if (linestatus & UART_LSR_OE) {
-		/*
-		 * Rx Oruns. Exar says that an orun will NOT corrupt
-		 * the FIFO. It will just replace the holding register
-		 * with this new data byte. So basically just ignore this.
-		 * Probably we should eventually have an orun stat in our
-		 * driver...
-		 */
-		ch->ch_err_overrun++;
-	}
-
-	if (linestatus & UART_LSR_THRE) {
-		spin_lock_irqsave(&ch->ch_lock, flags);
-		ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-		neo_copy_data_from_queue_to_uart(ch);
-	} else if (linestatus & UART_17158_TX_AND_FIFO_CLR) {
-		spin_lock_irqsave(&ch->ch_lock, flags);
-		ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-		neo_copy_data_from_queue_to_uart(ch);
-	}
-}
-
-/* Send any/all changes to the line to the UART. */
-static void neo_param(struct tty_struct *tty)
-{
-	unsigned char lcr = 0;
-	unsigned char uart_lcr = 0;
-	unsigned char ier = 0;
-	unsigned char uart_ier = 0;
-	uint baud = 9600;
-	int quot = 0;
-	struct dgnc_board *bd;
-	struct channel_t *ch;
-	struct un_t   *un;
-
-	if (!tty)
-		return;
-
-	un = (struct un_t *)tty->driver_data;
-	if (!un)
-		return;
-
-	ch = un->un_ch;
-	if (!ch)
-		return;
-
-	bd = ch->ch_bd;
-	if (!bd)
-		return;
-
-	/* If baud rate is zero, flush queues, and set mval to drop DTR. */
-	if ((ch->ch_c_cflag & (CBAUD)) == 0) {
-		ch->ch_r_head = 0;
-		ch->ch_r_tail = 0;
-		ch->ch_e_head = 0;
-		ch->ch_e_tail = 0;
-		ch->ch_w_head = 0;
-		ch->ch_w_tail = 0;
-
-		neo_flush_uart_write(ch);
-		neo_flush_uart_read(ch);
-
-		/* The baudrate is B0 so all modem lines are to be dropped. */
-		ch->ch_flags |= (CH_BAUD0);
-		ch->ch_mostat &= ~(UART_MCR_RTS | UART_MCR_DTR);
-		neo_assert_modem_signals(ch);
-		ch->ch_old_baud = 0;
-		return;
-
-	} else if (ch->ch_custom_speed) {
-		baud = ch->ch_custom_speed;
-		/* Handle transition from B0 */
-		if (ch->ch_flags & CH_BAUD0) {
-			ch->ch_flags &= ~(CH_BAUD0);
-
-			/*
-			 * Bring back up RTS and DTR...
-			 * Also handle RTS or DTR toggle if set.
-			 */
-			if (!(ch->ch_digi.digi_flags & DIGI_RTS_TOGGLE))
-				ch->ch_mostat |= (UART_MCR_RTS);
-			if (!(ch->ch_digi.digi_flags & DIGI_DTR_TOGGLE))
-				ch->ch_mostat |= (UART_MCR_DTR);
-		}
-	} else {
-		int iindex = 0;
-		int jindex = 0;
-
-		ulong bauds[4][16] = {
-			{ /* slowbaud */
-				0,      50,     75,     110,
-				134,    150,    200,    300,
-				600,    1200,   1800,   2400,
-				4800,   9600,   19200,  38400 },
-			{ /* slowbaud & CBAUDEX */
-				0,      57600,  115200, 230400,
-				460800, 150,    200,    921600,
-				600,    1200,   1800,   2400,
-				4800,   9600,   19200,  38400 },
-			{ /* fastbaud */
-				0,      57600,   76800, 115200,
-				131657, 153600, 230400, 460800,
-				921600, 1200,   1800,   2400,
-				4800,   9600,   19200,  38400 },
-			{ /* fastbaud & CBAUDEX */
-				0,      57600,  115200, 230400,
-				460800, 150,    200,    921600,
-				600,    1200,   1800,   2400,
-				4800,   9600,   19200,  38400 }
-		};
-
-		/*
-		 * Only use the TXPrint baud rate if the terminal unit
-		 * is NOT open
-		 */
-		if (!(ch->ch_tun.un_flags & UN_ISOPEN) &&
-		    (un->un_type == DGNC_PRINT))
-			baud = C_BAUD(ch->ch_pun.un_tty) & 0xff;
-		else
-			baud = C_BAUD(ch->ch_tun.un_tty) & 0xff;
-
-		if (ch->ch_c_cflag & CBAUDEX)
-			iindex = 1;
-
-		if (ch->ch_digi.digi_flags & DIGI_FAST)
-			iindex += 2;
-
-		jindex = baud;
-
-		if ((iindex >= 0) && (iindex < 4) &&
-		    (jindex >= 0) && (jindex < 16))
-			baud = bauds[iindex][jindex];
-		else
-			baud = 0;
-
-		if (baud == 0)
-			baud = 9600;
-
-		/* Handle transition from B0 */
-		if (ch->ch_flags & CH_BAUD0) {
-			ch->ch_flags &= ~(CH_BAUD0);
-
-			/*
-			 * Bring back up RTS and DTR...
-			 * Also handle RTS or DTR toggle if set.
-			 */
-			if (!(ch->ch_digi.digi_flags & DIGI_RTS_TOGGLE))
-				ch->ch_mostat |= (UART_MCR_RTS);
-			if (!(ch->ch_digi.digi_flags & DIGI_DTR_TOGGLE))
-				ch->ch_mostat |= (UART_MCR_DTR);
-		}
-	}
-
-	if (ch->ch_c_cflag & PARENB)
-		lcr |= UART_LCR_PARITY;
-
-	if (!(ch->ch_c_cflag & PARODD))
-		lcr |= UART_LCR_EPAR;
-
-#ifdef CMSPAR
-	if (ch->ch_c_cflag & CMSPAR)
-		lcr |= UART_LCR_SPAR;
-#endif
-
-	if (ch->ch_c_cflag & CSTOPB)
-		lcr |= UART_LCR_STOP;
-
-	switch (ch->ch_c_cflag & CSIZE) {
-	case CS5:
-		lcr |= UART_LCR_WLEN5;
-		break;
-	case CS6:
-		lcr |= UART_LCR_WLEN6;
-		break;
-	case CS7:
-		lcr |= UART_LCR_WLEN7;
-		break;
-	case CS8:
-	default:
-		lcr |= UART_LCR_WLEN8;
-		break;
-	}
-
-	uart_ier = readb(&ch->ch_neo_uart->ier);
-	ier = uart_ier;
-
-	uart_lcr = readb(&ch->ch_neo_uart->lcr);
-
-	if (baud == 0)
-		baud = 9600;
-
-	quot = ch->ch_bd->bd_dividend / baud;
-
-	if (quot != 0 && ch->ch_old_baud != baud) {
-		ch->ch_old_baud = baud;
-		writeb(UART_LCR_DLAB, &ch->ch_neo_uart->lcr);
-		writeb((quot & 0xff), &ch->ch_neo_uart->txrx);
-		writeb((quot >> 8), &ch->ch_neo_uart->ier);
-		writeb(lcr, &ch->ch_neo_uart->lcr);
-	}
-
-	if (uart_lcr != lcr)
-		writeb(lcr, &ch->ch_neo_uart->lcr);
-
-	if (ch->ch_c_cflag & CREAD)
-		ier |= (UART_IER_RDI | UART_IER_RLSI);
-	else
-		ier &= ~(UART_IER_RDI | UART_IER_RLSI);
-
-	/*
-	 * Have the UART interrupt on modem signal changes ONLY when
-	 * we are in hardware flow control mode, or CLOCAL/FORCEDCD is not set.
-	 */
-	if ((ch->ch_digi.digi_flags & CTSPACE) ||
-	    (ch->ch_digi.digi_flags & RTSPACE) ||
-	    (ch->ch_c_cflag & CRTSCTS) ||
-	    !(ch->ch_digi.digi_flags & DIGI_FORCEDCD) ||
-	    !(ch->ch_c_cflag & CLOCAL))
-		ier |= UART_IER_MSI;
-	else
-		ier &= ~UART_IER_MSI;
-
-	ier |= UART_IER_THRI;
-
-	if (ier != uart_ier)
-		writeb(ier, &ch->ch_neo_uart->ier);
-
-	neo_set_new_start_stop_chars(ch);
-
-	if (ch->ch_digi.digi_flags & CTSPACE || ch->ch_c_cflag & CRTSCTS) {
-		neo_set_cts_flow_control(ch);
-	} else if (ch->ch_c_iflag & IXON) {
-		if ((ch->ch_startc == _POSIX_VDISABLE) ||
-		    (ch->ch_stopc == _POSIX_VDISABLE))
-			neo_set_no_output_flow_control(ch);
-		else
-			neo_set_ixon_flow_control(ch);
-	} else {
-		neo_set_no_output_flow_control(ch);
-	}
-
-	if (ch->ch_digi.digi_flags & RTSPACE || ch->ch_c_cflag & CRTSCTS) {
-		neo_set_rts_flow_control(ch);
-	} else if (ch->ch_c_iflag & IXOFF) {
-		if ((ch->ch_startc == _POSIX_VDISABLE) ||
-		    (ch->ch_stopc == _POSIX_VDISABLE))
-			neo_set_no_input_flow_control(ch);
-		else
-			neo_set_ixoff_flow_control(ch);
-	} else {
-		neo_set_no_input_flow_control(ch);
-	}
-
-	/*
-	 * Adjust the RX FIFO Trigger level if baud is less than 9600.
-	 * Not exactly elegant, but this is needed because of the Exar chip's
-	 * delay on firing off the RX FIFO interrupt on slower baud rates.
-	 */
-	if (baud < 9600) {
-		writeb(1, &ch->ch_neo_uart->rfifo);
-		ch->ch_r_tlevel = 1;
-	}
-
-	neo_assert_modem_signals(ch);
-
-	neo_parse_modem(ch, readb(&ch->ch_neo_uart->msr));
-}
-
-/* Board poller function. */
-static void neo_tasklet(unsigned long data)
-{
-	struct dgnc_board *bd = (struct dgnc_board *)data;
-	struct channel_t *ch;
-	unsigned long flags;
-	int i;
-	int state = 0;
-	int ports = 0;
-
-	if (!bd)
-		return;
-
-	spin_lock_irqsave(&bd->bd_lock, flags);
-	state = bd->state;
-	ports = bd->nasync;
-	spin_unlock_irqrestore(&bd->bd_lock, flags);
-
-	/*
-	 * Do NOT allow the interrupt routine to read the intr registers
-	 * Until we release this lock.
-	 */
-	spin_lock_irqsave(&bd->bd_intr_lock, flags);
-
-	if ((state == BOARD_READY) && (ports > 0)) {
-		for (i = 0; i < ports; i++) {
-			ch = bd->channels[i];
-			if (!ch)
-				continue;
-
-			/*
-			 * NOTE: Remember you CANNOT hold any channel
-			 * locks when calling the input routine.
-			 *
-			 * During input processing, its possible we
-			 * will call the Linux ld, which might in turn,
-			 * do a callback right back into us, resulting
-			 * in us trying to grab the channel lock twice!
-			 */
-			dgnc_input(ch);
-
-			/*
-			 * Channel lock is grabbed and then released
-			 * inside both of these routines, but neither
-			 * call anything else that could call back into us.
-			 */
-			neo_copy_data_from_queue_to_uart(ch);
-			dgnc_wakeup_writes(ch);
-
-			dgnc_carrier(ch);
-
-			/*
-			 * Check to see if we need to turn off a sending break.
-			 * The timing check is done inside clear_break()
-			 */
-			if (ch->ch_stop_sending_break)
-				neo_clear_break(ch, 0);
-		}
-	}
-
-	spin_unlock_irqrestore(&bd->bd_intr_lock, flags);
-}
-
-/* Neo specific interrupt handler. */
-static irqreturn_t neo_intr(int irq, void *voidbrd)
-{
-	struct dgnc_board *brd = voidbrd;
-	struct channel_t *ch;
-	int port = 0;
-	int type;
-	u32 uart_poll;
-	unsigned long flags;
-	unsigned long flags2;
-
-	if (!brd)
-		return IRQ_NONE;
-
-	/* Lock out the slow poller from running on this board. */
-	spin_lock_irqsave(&brd->bd_intr_lock, flags);
-
-	/*
-	 * Read in "extended" IRQ information from the 32bit Neo register.
-	 * Bits 0-7: What port triggered the interrupt.
-	 * Bits 8-31: Each 3bits indicate what type of interrupt occurred.
-	 */
-	uart_poll = readl(brd->re_map_membase + UART_17158_POLL_ADDR_OFFSET);
-
-	/*
-	 * If 0, no interrupts pending.
-	 * This can happen if the IRQ is shared among a couple Neo/Classic
-	 * boards.
-	 */
-	if (!uart_poll) {
-		spin_unlock_irqrestore(&brd->bd_intr_lock, flags);
-		return IRQ_NONE;
-	}
-
-	while ((uart_poll & 0xff) != 0) {
-		type = uart_poll >> (8 + (port * 3));
-		type &= 0x7;
-
-		uart_poll &= ~(0x01 << port);
-
-		switch (type) {
-		case UART_17158_RXRDY_TIMEOUT:
-			/*
-			 * RXRDY Time-out is cleared by reading data in the
-			 * RX FIFO until it falls below the trigger level.
-			 */
-
-			if (port >= brd->nasync)
-				break;
-
-			ch = brd->channels[port];
-			neo_copy_data_from_uart_to_queue(ch);
-
-			/*
-			 * Call our tty layer to enforce queue flow control if
-			 * needed.
-			 */
-			spin_lock_irqsave(&ch->ch_lock, flags2);
-			dgnc_check_queue_flow_control(ch);
-			spin_unlock_irqrestore(&ch->ch_lock, flags2);
-
-			break;
-
-		case UART_17158_RX_LINE_STATUS:
-
-			/* RXRDY and RX LINE Status (logic OR of LSR[4:1]) */
-
-			neo_parse_lsr(brd, port);
-			break;
-
-		case UART_17158_TXRDY:
-			/*
-			 * TXRDY interrupt clears after reading ISR register
-			 * for the UART channel.
-			 */
-
-			/*
-			 * Yes, this is odd...
-			 * Why would I check EVERY possibility of type of
-			 * interrupt, when we know its TXRDY???
-			 * Becuz for some reason, even tho we got triggered for
-			 * TXRDY, it seems to be occasionally wrong. Instead of
-			 * TX, which it should be, I was getting things like
-			 * RXDY too. Weird.
-			 */
-			neo_parse_isr(brd, port);
-			break;
-
-		case UART_17158_MSR:
-			/* MSR or flow control was seen. */
-			neo_parse_isr(brd, port);
-			break;
-
-		default:
-			break;
-		}
-
-		port++;
-	}
-
-	tasklet_schedule(&brd->helper_tasklet);
-
-	spin_unlock_irqrestore(&brd->bd_intr_lock, flags);
-
-	return IRQ_HANDLED;
-}
-
-/*
- * Neo specific way of turning off the receiver.
- * Used as a way to enforce queue flow control when in
- * hardware flow control mode.
- */
-static void neo_disable_receiver(struct channel_t *ch)
-{
-	unsigned char tmp = readb(&ch->ch_neo_uart->ier);
-
-	tmp &= ~(UART_IER_RDI);
-	writeb(tmp, &ch->ch_neo_uart->ier);
-	neo_pci_posting_flush(ch->ch_bd);
-}
-
-/*
- * Neo specific way of turning on the receiver.
- * Used as a way to un-enforce queue flow control when in
- * hardware flow control mode.
- */
-static void neo_enable_receiver(struct channel_t *ch)
-{
-	unsigned char tmp = readb(&ch->ch_neo_uart->ier);
-
-	tmp |= (UART_IER_RDI);
-	writeb(tmp, &ch->ch_neo_uart->ier);
-	neo_pci_posting_flush(ch->ch_bd);
-}
-
-static void neo_copy_data_from_uart_to_queue(struct channel_t *ch)
-{
-	int qleft = 0;
-	unsigned char linestatus = 0;
-	unsigned char error_mask = 0;
-	int n = 0;
-	int total = 0;
-	ushort head;
-	ushort tail;
-	unsigned long flags;
-
-	if (!ch)
-		return;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-	head = ch->ch_r_head & RQUEUEMASK;
-	tail = ch->ch_r_tail & RQUEUEMASK;
-
-	linestatus = ch->ch_cached_lsr;
-	ch->ch_cached_lsr = 0;
-
-	qleft = tail - head - 1;
-	if (qleft < 0)
-		qleft += RQUEUEMASK + 1;
-
-	if (!(ch->ch_flags & CH_FIFO_ENABLED)) {
-		/* force the FIFO copy to NOT be run */
-		total = 0;
-	} else {
-		total = readb(&ch->ch_neo_uart->rfifo);
-
-		/*
-		 * EXAR chip bug - RX FIFO COUNT - Fudge factor.
-		 *
-		 * This resolves a problem/bug with the Exar chip that sometimes
-		 * returns a bogus value in the rfifo register.
-		 * The count can be any where from 0-3 bytes "off".
-		 * Bizarre, but true.
-		 */
-		if ((ch->ch_bd->dvid & 0xf0) >= UART_XR17E158_DVID)
-			total -= 1;
-		else
-			total -= 3;
-	}
-
-	total = min(total, qleft);
-
-	while (total > 0) {
-		linestatus = readb(&ch->ch_neo_uart->lsr);
-
-		if (linestatus & UART_17158_RX_FIFO_DATA_ERROR)
-			break;
-
-		/* Make sure we don't go over the end of our queue */
-		n = min(((uint)total), (RQUEUESIZE - (uint)head));
-
-		/*
-		 * Cut down n even further if needed, this is to fix
-		 * a problem with memcpy_fromio() with the Neo on the
-		 * IBM pSeries platform.
-		 * 15 bytes max appears to be the magic number.
-		 */
-		n = min_t(uint, n, 12);
-
-		/*
-		 * Since we are grabbing the linestatus register, which
-		 * will reset some bits after our read, we need to ensure
-		 * we don't miss our TX FIFO emptys.
-		 */
-		if (linestatus & (UART_LSR_THRE | UART_17158_TX_AND_FIFO_CLR))
-			ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);
-
-		linestatus = 0;
-
-		memcpy_fromio(ch->ch_rqueue + head,
-			      &ch->ch_neo_uart->txrxburst, n);
-
-		/*
-		 * Since RX_FIFO_DATA_ERROR was 0, we are guaranteed
-		 * that all the data currently in the FIFO is free of
-		 * breaks and parity/frame/orun errors.
-		 */
-		memset(ch->ch_equeue + head, 0, n);
-
-		head = (head + n) & RQUEUEMASK;
-		total -= n;
-		qleft -= n;
-		ch->ch_rxcount += n;
-	}
-
-	/*
-	 * Create a mask to determine whether we should
-	 * insert the character (if any) into our queue.
-	 */
-	if (ch->ch_c_iflag & IGNBRK)
-		error_mask |= UART_LSR_BI;
-
-	/*
-	 * Now cleanup any leftover bytes still in the UART.
-	 * Also deal with any possible queue overflow here as well.
-	 */
-	while (1) {
-		/*
-		 * Its possible we have a linestatus from the loop above
-		 * this, so we "OR" on any extra bits.
-		 */
-		linestatus |= readb(&ch->ch_neo_uart->lsr);
-
-		/*
-		 * If the chip tells us there is no more data pending to
-		 * be read, we can then leave.
-		 * But before we do, cache the linestatus, just in case.
-		 */
-		if (!(linestatus & UART_LSR_DR)) {
-			ch->ch_cached_lsr = linestatus;
-			break;
-		}
-
-		/* No need to store this bit */
-		linestatus &= ~UART_LSR_DR;
-
-		/*
-		 * Since we are grabbing the linestatus register, which
-		 * will reset some bits after our read, we need to ensure
-		 * we don't miss our TX FIFO emptys.
-		 */
-		if (linestatus & (UART_LSR_THRE | UART_17158_TX_AND_FIFO_CLR)) {
-			linestatus &= ~(UART_LSR_THRE |
-					UART_17158_TX_AND_FIFO_CLR);
-			ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);
-		}
-
-		if (linestatus & error_mask)  {
-			unsigned char discard;
-
-			linestatus = 0;
-			memcpy_fromio(&discard, &ch->ch_neo_uart->txrxburst, 1);
-			continue;
-		}
-
-		/*
-		 * If our queue is full, we have no choice but to drop
-		 * some data. The assumption is that HWFLOW or SWFLOW
-		 * should have stopped things way way before we got to
-		 * this point.
-		 */
-		while (qleft < 1) {
-			tail = (tail + 1) & RQUEUEMASK;
-			ch->ch_r_tail = tail;
-			ch->ch_err_overrun++;
-			qleft++;
-		}
-
-		memcpy_fromio(ch->ch_rqueue + head,
-			      &ch->ch_neo_uart->txrxburst, 1);
-		ch->ch_equeue[head] = (unsigned char)linestatus;
-
-		linestatus = 0;
-
-		head = (head + 1) & RQUEUEMASK;
-
-		qleft--;
-		ch->ch_rxcount++;
-	}
-
-	ch->ch_r_head = head & RQUEUEMASK;
-	ch->ch_e_head = head & EQUEUEMASK;
-
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-}
-
-/*
- * This function basically goes to sleep for secs, or until
- * it gets signalled that the port has fully drained.
- */
-static int neo_drain(struct tty_struct *tty, uint seconds)
-{
-	unsigned long flags;
-	struct channel_t *ch;
-	struct un_t *un;
-
-	if (!tty)
-		return -ENXIO;
-
-	un = (struct un_t *)tty->driver_data;
-	if (!un)
-		return -ENXIO;
-
-	ch = un->un_ch;
-	if (!ch)
-		return -ENXIO;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-	un->un_flags |= UN_EMPTY;
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-	/* If returned value is non-zero, user ctrl-c'ed us */
-	return wait_event_interruptible_timeout(un->un_flags_wait,
-					((un->un_flags & UN_EMPTY) == 0),
-					msecs_to_jiffies(seconds * 1000));
-}
-
-/*
- * Flush the WRITE FIFO on the Neo.
- * Channel lock MUST be held before calling this function!
- */
-static void neo_flush_uart_write(struct channel_t *ch)
-{
-	unsigned char tmp = 0;
-	int i = 0;
-
-	if (!ch)
-		return;
-
-	writeb((UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_XMIT),
-	       &ch->ch_neo_uart->isr_fcr);
-	neo_pci_posting_flush(ch->ch_bd);
-
-	for (i = 0; i < 10; i++) {
-		/*
-		 * Check to see if the UART completely flushed the FIFO
-		 * FIFO.
-		 */
-		tmp = readb(&ch->ch_neo_uart->isr_fcr);
-		if (tmp & 4)
-			udelay(10);
-		else
-			break;
-	}
-
-	ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);
-}
-
-/*
- * Flush the READ FIFO on the Neo.
- * Channel lock MUST be held before calling this function!
- */
-static void neo_flush_uart_read(struct channel_t *ch)
-{
-	unsigned char tmp = 0;
-	int i = 0;
-
-	if (!ch)
-		return;
-
-	writeb(UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR,
-	       &ch->ch_neo_uart->isr_fcr);
-	neo_pci_posting_flush(ch->ch_bd);
-
-	for (i = 0; i < 10; i++) {
-		/*
-		 * Check to see if the UART feels it completely flushed the
-		 * FIFO.
-		 */
-		tmp = readb(&ch->ch_neo_uart->isr_fcr);
-		if (tmp & 2)
-			udelay(10);
-		else
-			break;
-	}
-}
-
-static void neo_copy_data_from_queue_to_uart(struct channel_t *ch)
-{
-	ushort head;
-	ushort tail;
-	int n;
-	int s;
-	int qlen;
-	uint len_written = 0;
-	unsigned long flags;
-
-	if (!ch)
-		return;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-	if (ch->ch_w_tail == ch->ch_w_head)
-		goto exit_unlock;
-
-	/* If port is "stopped", don't send any data to the UART */
-	if ((ch->ch_flags & CH_FORCED_STOP) ||
-	    (ch->ch_flags & CH_BREAK_SENDING))
-		goto exit_unlock;
-
-	if (!(ch->ch_flags & CH_FIFO_ENABLED)) {
-		/* Send data directly to txrx register */
-		unsigned char lsrbits = readb(&ch->ch_neo_uart->lsr);
-
-		ch->ch_cached_lsr |= lsrbits;
-		if (ch->ch_cached_lsr & UART_LSR_THRE) {
-			ch->ch_cached_lsr &= ~(UART_LSR_THRE);
-
-			/*
-			 * If RTS Toggle mode is on, turn on RTS now if not
-			 * already set, and make sure we get an event when the
-			 * data transfer has completed.
-			 */
-			if (ch->ch_digi.digi_flags & DIGI_RTS_TOGGLE) {
-				if (!(ch->ch_mostat & UART_MCR_RTS)) {
-					ch->ch_mostat |= (UART_MCR_RTS);
-					neo_assert_modem_signals(ch);
-				}
-				ch->ch_tun.un_flags |= (UN_EMPTY);
-			}
-			/*
-			 * If DTR Toggle mode is on, turn on DTR now if not
-			 * already set, and make sure we get an event when the
-			 * data transfer has completed.
-			 */
-			if (ch->ch_digi.digi_flags & DIGI_DTR_TOGGLE) {
-				if (!(ch->ch_mostat & UART_MCR_DTR)) {
-					ch->ch_mostat |= (UART_MCR_DTR);
-					neo_assert_modem_signals(ch);
-				}
-				ch->ch_tun.un_flags |= (UN_EMPTY);
-			}
-
-			writeb(ch->ch_wqueue[ch->ch_w_tail],
-			       &ch->ch_neo_uart->txrx);
-			ch->ch_w_tail++;
-			ch->ch_w_tail &= WQUEUEMASK;
-			ch->ch_txcount++;
-		}
-
-		goto exit_unlock;
-	}
-
-	/* We have to do it this way, because of the EXAR TXFIFO count bug. */
-
-	if ((ch->ch_bd->dvid & 0xf0) < UART_XR17E158_DVID) {
-		if (!(ch->ch_flags & (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM)))
-			goto exit_unlock;
-
-		len_written = 0;
-
-		n = readb(&ch->ch_neo_uart->tfifo);
-
-		if ((unsigned int)n > ch->ch_t_tlevel)
-			goto exit_unlock;
-
-		n = UART_17158_TX_FIFOSIZE - ch->ch_t_tlevel;
-	} else {
-		n = UART_17158_TX_FIFOSIZE - readb(&ch->ch_neo_uart->tfifo);
-	}
-
-	head = ch->ch_w_head & WQUEUEMASK;
-	tail = ch->ch_w_tail & WQUEUEMASK;
-	qlen = (head - tail) & WQUEUEMASK;
-
-	n = min(n, qlen);
-
-	while (n > 0) {
-		s = ((head >= tail) ? head : WQUEUESIZE) - tail;
-		s = min(s, n);
-
-		if (s <= 0)
-			break;
-
-		/*
-		 * If RTS Toggle mode is on, turn on RTS now if not already set,
-		 * and make sure we get an event when the data transfer has
-		 * completed.
-		 */
-		if (ch->ch_digi.digi_flags & DIGI_RTS_TOGGLE) {
-			if (!(ch->ch_mostat & UART_MCR_RTS)) {
-				ch->ch_mostat |= (UART_MCR_RTS);
-				neo_assert_modem_signals(ch);
-			}
-			ch->ch_tun.un_flags |= (UN_EMPTY);
-		}
-
-		/*
-		 * If DTR Toggle mode is on, turn on DTR now if not already set,
-		 * and make sure we get an event when the data transfer has
-		 * completed.
-		 */
-		if (ch->ch_digi.digi_flags & DIGI_DTR_TOGGLE) {
-			if (!(ch->ch_mostat & UART_MCR_DTR)) {
-				ch->ch_mostat |= (UART_MCR_DTR);
-				neo_assert_modem_signals(ch);
-			}
-			ch->ch_tun.un_flags |= (UN_EMPTY);
-		}
-
-		memcpy_toio(&ch->ch_neo_uart->txrxburst,
-			    ch->ch_wqueue + tail, s);
-
-		tail = (tail + s) & WQUEUEMASK;
-		n -= s;
-		ch->ch_txcount += s;
-		len_written += s;
-	}
-
-	ch->ch_w_tail = tail & WQUEUEMASK;
-
-	if (len_written > 0) {
-		neo_pci_posting_flush(ch->ch_bd);
-		ch->ch_flags &= ~(CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);
-	}
-
-exit_unlock:
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-}
-
-static void neo_parse_modem(struct channel_t *ch, unsigned char signals)
-{
-	unsigned char msignals = signals;
-
-	if (!ch)
-		return;
-
-	/*
-	 * Do altpin switching. Altpin switches DCD and DSR.
-	 * This prolly breaks DSRPACE, so we should be more clever here.
-	 */
-	if (ch->ch_digi.digi_flags & DIGI_ALTPIN) {
-		unsigned char mswap = msignals;
-
-		if (mswap & UART_MSR_DDCD) {
-			msignals &= ~UART_MSR_DDCD;
-			msignals |= UART_MSR_DDSR;
-		}
-		if (mswap & UART_MSR_DDSR) {
-			msignals &= ~UART_MSR_DDSR;
-			msignals |= UART_MSR_DDCD;
-		}
-		if (mswap & UART_MSR_DCD) {
-			msignals &= ~UART_MSR_DCD;
-			msignals |= UART_MSR_DSR;
-		}
-		if (mswap & UART_MSR_DSR) {
-			msignals &= ~UART_MSR_DSR;
-			msignals |= UART_MSR_DCD;
-		}
-	}
-
-	/* Scrub off lower bits. They signify delta's */
-	msignals &= 0xf0;
-
-	if (msignals & UART_MSR_DCD)
-		ch->ch_mistat |= UART_MSR_DCD;
-	else
-		ch->ch_mistat &= ~UART_MSR_DCD;
-
-	if (msignals & UART_MSR_DSR)
-		ch->ch_mistat |= UART_MSR_DSR;
-	else
-		ch->ch_mistat &= ~UART_MSR_DSR;
-
-	if (msignals & UART_MSR_RI)
-		ch->ch_mistat |= UART_MSR_RI;
-	else
-		ch->ch_mistat &= ~UART_MSR_RI;
-
-	if (msignals & UART_MSR_CTS)
-		ch->ch_mistat |= UART_MSR_CTS;
-	else
-		ch->ch_mistat &= ~UART_MSR_CTS;
-}
-
-/* Make the UART raise any of the output signals we want up */
-static void neo_assert_modem_signals(struct channel_t *ch)
-{
-	unsigned char out;
-
-	if (!ch)
-		return;
-
-	out = ch->ch_mostat;
-
-	if (ch->ch_flags & CH_LOOPBACK)
-		out |= UART_MCR_LOOP;
-
-	writeb(out, &ch->ch_neo_uart->mcr);
-	neo_pci_posting_flush(ch->ch_bd);
-
-	/* Give time for the UART to actually raise/drop the signals */
-	udelay(10);
-}
-
-static void neo_send_start_character(struct channel_t *ch)
-{
-	if (!ch)
-		return;
-
-	if (ch->ch_startc != _POSIX_VDISABLE) {
-		ch->ch_xon_sends++;
-		writeb(ch->ch_startc, &ch->ch_neo_uart->txrx);
-		neo_pci_posting_flush(ch->ch_bd);
-		udelay(10);
-	}
-}
-
-static void neo_send_stop_character(struct channel_t *ch)
-{
-	if (!ch)
-		return;
-
-	if (ch->ch_stopc != _POSIX_VDISABLE) {
-		ch->ch_xoff_sends++;
-		writeb(ch->ch_stopc, &ch->ch_neo_uart->txrx);
-		neo_pci_posting_flush(ch->ch_bd);
-		udelay(10);
-	}
-}
-
-/* neo_uart_init */
-
-static void neo_uart_init(struct channel_t *ch)
-{
-	writeb(0, &ch->ch_neo_uart->ier);
-	writeb(0, &ch->ch_neo_uart->efr);
-	writeb(UART_EFR_ECB, &ch->ch_neo_uart->efr);
-
-	/* Clear out UART and FIFO */
-	readb(&ch->ch_neo_uart->txrx);
-	writeb(UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT,
-	       &ch->ch_neo_uart->isr_fcr);
-	readb(&ch->ch_neo_uart->lsr);
-	readb(&ch->ch_neo_uart->msr);
-
-	ch->ch_flags |= CH_FIFO_ENABLED;
-
-	/* Assert any signals we want up */
-	writeb(ch->ch_mostat, &ch->ch_neo_uart->mcr);
-	neo_pci_posting_flush(ch->ch_bd);
-}
-
-/* Make the UART completely turn off. */
-static void neo_uart_off(struct channel_t *ch)
-{
-	/* Turn off UART enhanced bits */
-	writeb(0, &ch->ch_neo_uart->efr);
-
-	/* Stop all interrupts from occurring. */
-	writeb(0, &ch->ch_neo_uart->ier);
-	neo_pci_posting_flush(ch->ch_bd);
-}
-
-static uint neo_get_uart_bytes_left(struct channel_t *ch)
-{
-	unsigned char left = 0;
-	unsigned char lsr = readb(&ch->ch_neo_uart->lsr);
-
-	/* We must cache the LSR as some of the bits get reset once read... */
-	ch->ch_cached_lsr |= lsr;
-
-	/* Determine whether the Transmitter is empty or not */
-	if (!(lsr & UART_LSR_TEMT)) {
-		if (ch->ch_flags & CH_TX_FIFO_EMPTY)
-			tasklet_schedule(&ch->ch_bd->helper_tasklet);
-		left = 1;
-	} else {
-		ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);
-		left = 0;
-	}
-
-	return left;
-}
-
-/* Channel lock MUST be held by the calling function! */
-static void neo_send_break(struct channel_t *ch, int msecs)
-{
-	/* If we receive a time of 0, this means turn off the break. */
-
-	if (msecs == 0) {
-		if (ch->ch_flags & CH_BREAK_SENDING) {
-			unsigned char temp = readb(&ch->ch_neo_uart->lcr);
-
-			writeb((temp & ~UART_LCR_SBC), &ch->ch_neo_uart->lcr);
-			neo_pci_posting_flush(ch->ch_bd);
-			ch->ch_flags &= ~(CH_BREAK_SENDING);
-			ch->ch_stop_sending_break = 0;
-		}
-		return;
-	}
-
-	/*
-	 * Set the time we should stop sending the break.
-	 * If we are already sending a break, toss away the existing
-	 * time to stop, and use this new value instead.
-	 */
-	ch->ch_stop_sending_break = jiffies + dgnc_jiffies_from_ms(msecs);
-
-	/* Tell the UART to start sending the break */
-	if (!(ch->ch_flags & CH_BREAK_SENDING)) {
-		unsigned char temp = readb(&ch->ch_neo_uart->lcr);
-
-		writeb((temp | UART_LCR_SBC), &ch->ch_neo_uart->lcr);
-		neo_pci_posting_flush(ch->ch_bd);
-		ch->ch_flags |= (CH_BREAK_SENDING);
-	}
-}
-
-/*
- * Sends a specific character as soon as possible to the UART,
- * jumping over any bytes that might be in the write queue.
- *
- * The channel lock MUST be held by the calling function.
- */
-static void neo_send_immediate_char(struct channel_t *ch, unsigned char c)
-{
-	if (!ch)
-		return;
-
-	writeb(c, &ch->ch_neo_uart->txrx);
-	neo_pci_posting_flush(ch->ch_bd);
-}
-
-static unsigned int neo_read_eeprom(unsigned char __iomem *base,
-				    unsigned int address)
-{
-	unsigned int enable;
-	unsigned int bits;
-	unsigned int databit;
-	unsigned int val;
-
-	/* enable chip select */
-	writeb(NEO_EECS, base + NEO_EEREG);
-	/* READ */
-	enable = address | 0x180;
-
-	for (bits = 9; bits--; ) {
-		databit = (enable & (1 << bits)) ? NEO_EEDI : 0;
-		/* Set read address */
-		writeb(databit | NEO_EECS, base + NEO_EEREG);
-		writeb(databit | NEO_EECS | NEO_EECK, base + NEO_EEREG);
-	}
-
-	val = 0;
-
-	for (bits = 17; bits--; ) {
-		/* clock to EEPROM */
-		writeb(NEO_EECS, base + NEO_EEREG);
-		writeb(NEO_EECS | NEO_EECK, base + NEO_EEREG);
-		val <<= 1;
-		/* read EEPROM */
-		if (readb(base + NEO_EEREG) & NEO_EEDO)
-			val |= 1;
-	}
-
-	/* clock falling edge */
-	writeb(NEO_EECS, base + NEO_EEREG);
-
-	/* drop chip select */
-	writeb(0x00, base + NEO_EEREG);
-
-	return val;
-}
-
-static void neo_vpd(struct dgnc_board *brd)
-{
-	unsigned int i = 0;
-	unsigned int a;
-
-	if (!brd)
-		return;
-
-	if (!brd->re_map_membase)
-		return;
-
-	/* Store the VPD into our buffer */
-	for (i = 0; i < NEO_VPD_IMAGESIZE; i++) {
-		a = neo_read_eeprom(brd->re_map_membase, i);
-		brd->vpd[i * 2] = a & 0xff;
-		brd->vpd[(i * 2) + 1] = (a >> 8) & 0xff;
-	}
-
-	/*
-	 * brd->vpd has different name tags by below index.
-	 * 0x08 : long resource name tag
-	 * 0x10 : long resource name tage (PCI-66 files)
-	 * 0x7F : small resource end tag
-	 */
-	if  (((brd->vpd[0x08] != 0x82) &&
-	      (brd->vpd[0x10] != 0x82)) ||
-	     (brd->vpd[0x7F] != 0x78)) {
-		memset(brd->vpd, '\0', NEO_VPD_IMAGESIZE);
-	} else {
-		/* Search for the serial number */
-		for (i = 0; i < NEO_VPD_IMAGEBYTES - 3; i++)
-			if (brd->vpd[i] == 'S' && brd->vpd[i + 1] == 'N')
-				strncpy(brd->serial_num, &brd->vpd[i + 3], 9);
-	}
-}
diff --git a/drivers/staging/dgnc/dgnc_neo.h b/drivers/staging/dgnc/dgnc_neo.h
deleted file mode 100644
index c30a2c2b5eea..000000000000
--- a/drivers/staging/dgnc/dgnc_neo.h
+++ /dev/null
@@ -1,175 +0,0 @@
-/*
- * Copyright 2003 Digi International (www.digi.com)
- *	Scott H Kilau <Scott_Kilau at digi dot com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
- */
-
-#ifndef _DGNC_NEO_H
-#define _DGNC_NEO_H
-
-#include "dgnc_driver.h"
-
-/**
- * struct neo_uart_struct - Per channel/port NEO UART structure
- *
- * key - W = read write
- *     - R = read only
- *     - U = unused
- *
- * @txrx: (RW) Holding Register.
- * @ier: (RW) Interrupt Enable Register.
- * @isr_fcr: (RW) Interrupt Status Reg/Fifo Control Register.
- * @lcr: (RW) Line Control Register.
- * @mcr: (RW) Modem Control Register.
- * @lsr: (RW) Line Status Register.
- * @msr: (RW) Modem Status Register.
- * @spr: (RW) Scratch Pad Register.
- * @fctr: (RW) Feature Control Register.
- * @efr: (RW) Enhanced Function Register.
- * @tfifo: (RW) Transmit FIFO Register.
- * @rfifo: (RW) Receive  FIFO Register.
- * @xoffchar1: (RW) XOff Character 1 Register.
- * @xoffchar2: (RW) XOff Character 2 Register.
- * @xonchar1: (RW) Xon Character 1 Register.
- * @xonchar2: (RW) XOn Character 2 Register.
- * @reserved1: (U) Reserved by Exar.
- * @txrxburst: (RW)  64 bytes of RX/TX FIFO Data.
- * @reserved2: (U) Reserved by Exar.
- * @rxburst_with_errors: (R) bytes of RX FIFO Data + LSR.
- */
-struct neo_uart_struct {
-	u8 txrx;
-	u8 ier;
-	u8 isr_fcr;
-
-	u8 lcr;
-	u8 mcr;
-	u8 lsr;
-	u8 msr;
-	u8 spr;
-	u8 fctr;
-	u8 efr;
-	u8 tfifo;
-	u8 rfifo;
-	u8 xoffchar1;
-	u8 xoffchar2;
-	u8 xonchar1;
-	u8 xonchar2;
-
-	u8 reserved1[0x2ff - 0x200];
-	u8 txrxburst[64];
-	u8 reserved2[0x37f - 0x340];
-	u8 rxburst_with_errors[64];
-};
-
-/* Where to read the extended interrupt register (32bits instead of 8bits) */
-#define	UART_17158_POLL_ADDR_OFFSET	0x80
-
-/* These are the current dvid's of the Neo boards */
-#define UART_XR17C158_DVID 0x20
-#define UART_XR17D158_DVID 0x20
-#define UART_XR17E158_DVID 0x40
-
-#define NEO_EECK  0x10		/* Clock */
-#define NEO_EECS  0x20		/* Chip Select */
-#define NEO_EEDI  0x40		/* Data In  is an Output Pin */
-#define NEO_EEDO  0x80		/* Data Out is an Input Pin */
-#define NEO_EEREG 0x8E		/* offset to EEPROM control reg */
-
-#define NEO_VPD_IMAGESIZE 0x40	/* size of image to read from EEPROM in words */
-#define NEO_VPD_IMAGEBYTES (NEO_VPD_IMAGESIZE * 2)
-
-/*
- * These are the redefinitions for the FCTR on the XR17C158, since
- * Exar made them different than their earlier design. (XR16C854)
- */
-
-/* These are only applicable when table D is selected */
-#define UART_17158_FCTR_RTS_NODELAY	0x00
-#define UART_17158_FCTR_RTS_4DELAY	0x01
-#define UART_17158_FCTR_RTS_6DELAY	0x02
-#define UART_17158_FCTR_RTS_8DELAY	0x03
-#define UART_17158_FCTR_RTS_12DELAY	0x12
-#define UART_17158_FCTR_RTS_16DELAY	0x05
-#define UART_17158_FCTR_RTS_20DELAY	0x13
-#define UART_17158_FCTR_RTS_24DELAY	0x06
-#define UART_17158_FCTR_RTS_28DELAY	0x14
-#define UART_17158_FCTR_RTS_32DELAY	0x07
-#define UART_17158_FCTR_RTS_36DELAY	0x16
-#define UART_17158_FCTR_RTS_40DELAY	0x08
-#define UART_17158_FCTR_RTS_44DELAY	0x09
-#define UART_17158_FCTR_RTS_48DELAY	0x10
-#define UART_17158_FCTR_RTS_52DELAY	0x11
-
-#define UART_17158_FCTR_RTS_IRDA	0x10
-#define UART_17158_FCTR_RS485		0x20
-#define UART_17158_FCTR_TRGA		0x00
-#define UART_17158_FCTR_TRGB		0x40
-#define UART_17158_FCTR_TRGC		0x80
-#define UART_17158_FCTR_TRGD		0xC0
-
-/* 17158 trigger table selects.. */
-#define UART_17158_FCTR_BIT6		0x40
-#define UART_17158_FCTR_BIT7		0x80
-
-/* 17158 TX/RX memmapped buffer offsets */
-#define UART_17158_RX_FIFOSIZE		64
-#define UART_17158_TX_FIFOSIZE		64
-
-/* 17158 Extended IIR's */
-#define UART_17158_IIR_RDI_TIMEOUT	0x0C	/* Receiver data TIMEOUT */
-#define UART_17158_IIR_XONXOFF		0x10	/* Received an XON/XOFF char */
-#define UART_17158_IIR_HWFLOW_STATE_CHANGE 0x20	/* CTS/DSR or RTS/DTR
-						 * state change
-						 */
-#define UART_17158_IIR_FIFO_ENABLED	0xC0	/* 16550 FIFOs are Enabled */
-
-/*
- * These are the extended interrupts that get sent
- * back to us from the UART's 32bit interrupt register
- */
-#define UART_17158_RX_LINE_STATUS	0x1	/* RX Ready */
-#define UART_17158_RXRDY_TIMEOUT	0x2	/* RX Ready Timeout */
-#define UART_17158_TXRDY		0x3	/* TX Ready */
-#define UART_17158_MSR			0x4	/* Modem State Change */
-#define UART_17158_TX_AND_FIFO_CLR	0x40	/* Transmitter Holding
-						 * Reg Empty
-						 */
-#define UART_17158_RX_FIFO_DATA_ERROR	0x80	/* UART detected an RX FIFO
-						 * Data error
-						 */
-
-/*
- * These are the EXTENDED definitions for the 17C158's Interrupt
- * Enable Register.
- */
-#define UART_17158_EFR_ECB	0x10	/* Enhanced control bit */
-#define UART_17158_EFR_IXON	0x2	/* Receiver compares Xon1/Xoff1 */
-#define UART_17158_EFR_IXOFF	0x8	/* Transmit Xon1/Xoff1 */
-#define UART_17158_EFR_RTSDTR	0x40	/* Auto RTS/DTR Flow Control Enable */
-#define UART_17158_EFR_CTSDSR	0x80	/* Auto CTS/DSR Flow Control Enable */
-
-#define UART_17158_XOFF_DETECT	0x1	/* Indicates whether chip saw an
-					 * incoming XOFF char
-					 */
-#define UART_17158_XON_DETECT	0x2	/* Indicates whether chip saw an
-					 * incoming XON char
-					 */
-
-#define UART_17158_IER_RSVD1	0x10	/* Reserved by Exar */
-#define UART_17158_IER_XOFF	0x20	/* Xoff Interrupt Enable */
-#define UART_17158_IER_RTSDTR	0x40	/* Output Interrupt Enable */
-#define UART_17158_IER_CTSDSR	0x80	/* Input Interrupt Enable */
-
-extern struct board_ops dgnc_neo_ops;
-
-#endif	/* _DGNC_NEO_H */
diff --git a/drivers/staging/dgnc/dgnc_pci.h b/drivers/staging/dgnc/dgnc_pci.h
deleted file mode 100644
index 59845916d90c..000000000000
--- a/drivers/staging/dgnc/dgnc_pci.h
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
- * Copyright 2003 Digi International (www.digi.com)
- *	Scott H Kilau <Scott_Kilau at digi dot com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
- */
-
-#ifndef _DGNC_PCI_H
-#define _DGNC_PCI_H
-
-/* Maximum number of PCI boards */
-#define PCIMAX 32
-
-#define DIGI_VID				0x114F
-
-#define PCI_DEVICE_CLASSIC_4_DID		0x0028
-#define PCI_DEVICE_CLASSIC_8_DID		0x0029
-#define PCI_DEVICE_CLASSIC_4_422_DID		0x00D0
-#define PCI_DEVICE_CLASSIC_8_422_DID		0x00D1
-#define PCI_DEVICE_NEO_4_DID			0x00B0
-#define PCI_DEVICE_NEO_8_DID			0x00B1
-#define PCI_DEVICE_NEO_2DB9_DID			0x00C8
-#define PCI_DEVICE_NEO_2DB9PRI_DID		0x00C9
-#define PCI_DEVICE_NEO_2RJ45_DID		0x00CA
-#define PCI_DEVICE_NEO_2RJ45PRI_DID		0x00CB
-#define PCI_DEVICE_NEO_1_422_DID		0x00CC
-#define PCI_DEVICE_NEO_1_422_485_DID		0x00CD
-#define PCI_DEVICE_NEO_2_422_485_DID		0x00CE
-#define PCI_DEVICE_NEO_EXPRESS_8_DID		0x00F0
-#define PCI_DEVICE_NEO_EXPRESS_4_DID		0x00F1
-#define PCI_DEVICE_NEO_EXPRESS_4RJ45_DID	0x00F2
-#define PCI_DEVICE_NEO_EXPRESS_8RJ45_DID	0x00F3
-#define PCI_DEVICE_NEO_EXPRESS_4_IBM_DID	0x00F4
-
-#define PCI_DEVICE_CLASSIC_4_PCI_NAME		"ClassicBoard 4 PCI"
-#define PCI_DEVICE_CLASSIC_8_PCI_NAME		"ClassicBoard 8 PCI"
-#define PCI_DEVICE_CLASSIC_4_422_PCI_NAME	"ClassicBoard 4 422 PCI"
-#define PCI_DEVICE_CLASSIC_8_422_PCI_NAME	"ClassicBoard 8 422 PCI"
-#define PCI_DEVICE_NEO_4_PCI_NAME		"Neo 4 PCI"
-#define PCI_DEVICE_NEO_8_PCI_NAME		"Neo 8 PCI"
-#define PCI_DEVICE_NEO_2DB9_PCI_NAME		"Neo 2 - DB9 Universal PCI"
-#define PCI_DEVICE_NEO_2DB9PRI_PCI_NAME		"Neo 2 - DB9 Universal PCI - Powered Ring Indicator"
-#define PCI_DEVICE_NEO_2RJ45_PCI_NAME		"Neo 2 - RJ45 Universal PCI"
-#define PCI_DEVICE_NEO_2RJ45PRI_PCI_NAME	"Neo 2 - RJ45 Universal PCI - Powered Ring Indicator"
-#define PCI_DEVICE_NEO_1_422_PCI_NAME		"Neo 1 422 PCI"
-#define PCI_DEVICE_NEO_1_422_485_PCI_NAME	"Neo 1 422/485 PCI"
-#define PCI_DEVICE_NEO_2_422_485_PCI_NAME	"Neo 2 422/485 PCI"
-
-#define PCI_DEVICE_NEO_EXPRESS_8_PCI_NAME	"Neo 8 PCI Express"
-#define PCI_DEVICE_NEO_EXPRESS_4_PCI_NAME	"Neo 4 PCI Express"
-#define PCI_DEVICE_NEO_EXPRESS_4RJ45_PCI_NAME	"Neo 4 PCI Express RJ45"
-#define PCI_DEVICE_NEO_EXPRESS_8RJ45_PCI_NAME	"Neo 8 PCI Express RJ45"
-#define PCI_DEVICE_NEO_EXPRESS_4_IBM_PCI_NAME	"Neo 4 PCI Express IBM"
-
-/* Size of memory and I/O for PCI (4 K) */
-#define PCI_RAM_SIZE				0x1000
-
-/* Size of memory (2MB) */
-#define PCI_MEM_SIZE				0x1000
-
-#endif	/* _DGNC_PCI_H */
diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c
index d3736daf8cf2..9f9b9a5b4b27 100644
--- a/drivers/staging/dgnc/dgnc_tty.c
+++ b/drivers/staging/dgnc/dgnc_tty.c
@@ -1,16 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2003 Digi International (www.digi.com)
  *	Scott H Kilau <Scott_Kilau at digi dot com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
  */
 
 /*
@@ -33,9 +24,7 @@
 #include <linux/pci.h>
 #include "dgnc_driver.h"
 #include "dgnc_tty.h"
-#include "dgnc_neo.h"
 #include "dgnc_cls.h"
-#include "dgnc_utils.h"
 
 /* Default transparent print information. */
 
@@ -240,10 +229,7 @@ int dgnc_tty_init(struct dgnc_board *brd)
 		ch->ch_pun.un_type = DGNC_PRINT;
 		ch->ch_pun.un_dev = i + 128;
 
-		if (brd->bd_uart_offset == 0x200)
-			ch->ch_neo_uart = vaddr + (brd->bd_uart_offset * i);
-		else
-			ch->ch_cls_uart = vaddr + (brd->bd_uart_offset * i);
+		ch->ch_cls_uart = vaddr + (brd->bd_uart_offset * i);
 
 		ch->ch_bd = brd;
 		ch->ch_portnum = i;
@@ -1238,7 +1224,7 @@ static void dgnc_tty_close(struct tty_struct *tty, struct file *file)
 			if (ch->ch_close_delay) {
 				spin_unlock_irqrestore(&ch->ch_lock,
 						       flags);
-				dgnc_ms_sleep(ch->ch_close_delay);
+				msleep_interruptible(ch->ch_close_delay);
 				spin_lock_irqsave(&ch->ch_lock, flags);
 			}
 		}
diff --git a/drivers/staging/dgnc/dgnc_tty.h b/drivers/staging/dgnc/dgnc_tty.h
index 6c58f1b3461a..00e31035b83d 100644
--- a/drivers/staging/dgnc/dgnc_tty.h
+++ b/drivers/staging/dgnc/dgnc_tty.h
@@ -1,16 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright 2003 Digi International (www.digi.com)
  *	Scott H Kilau <Scott_Kilau at digi dot com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
  */
 
 #ifndef _DGNC_TTY_H
diff --git a/drivers/staging/dgnc/dgnc_utils.c b/drivers/staging/dgnc/dgnc_utils.c
deleted file mode 100644
index 620f5741a1ed..000000000000
--- a/drivers/staging/dgnc/dgnc_utils.c
+++ /dev/null
@@ -1,17 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <linux/tty.h>
-#include <linux/sched/signal.h>
-#include "dgnc_utils.h"
-
-/**
- * dgnc_ms_sleep - Put the driver to sleep
- * @ms - milliseconds to sleep
- *
- * Return: 0 if timed out, if interrupted by a signal return signal.
- */
-int dgnc_ms_sleep(ulong ms)
-{
-	__set_current_state(TASK_INTERRUPTIBLE);
-	schedule_timeout((ms * HZ) / 1000);
-	return signal_pending(current);
-}
diff --git a/drivers/staging/dgnc/dgnc_utils.h b/drivers/staging/dgnc/dgnc_utils.h
deleted file mode 100644
index b30527f0889d..000000000000
--- a/drivers/staging/dgnc/dgnc_utils.h
+++ /dev/null
@@ -1,7 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _DGNC_UTILS_H
-#define _DGNC_UTILS_H
-
-int dgnc_ms_sleep(ulong ms);
-
-#endif	/* _DGNC_UTILS_H */
diff --git a/drivers/staging/dgnc/digi.h b/drivers/staging/dgnc/digi.h
index 46b06b07bbf2..b414ee80db88 100644
--- a/drivers/staging/dgnc/digi.h
+++ b/drivers/staging/dgnc/digi.h
@@ -1,50 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright 2003 Digi International (www.digi.com)
  *	Scott H Kilau <Scott_Kilau at digi dot com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
  */
 
 #ifndef _DIGI_H
 #define _DIGI_H
 
-#ifndef TIOCM_LE
-#define		TIOCM_LE	0x01		/* line enable */
-#define		TIOCM_DTR	0x02		/* data terminal ready */
-#define		TIOCM_RTS	0x04		/* request to send */
-#define		TIOCM_ST	0x08		/* secondary transmit */
-#define		TIOCM_SR	0x10		/* secondary receive */
-#define		TIOCM_CTS	0x20		/* clear to send */
-#define		TIOCM_CAR	0x40		/* carrier detect */
-#define		TIOCM_RNG	0x80		/* ring	indicator */
-#define		TIOCM_DSR	0x100		/* data set ready */
-#define		TIOCM_RI	TIOCM_RNG	/* ring (alternate) */
-#define		TIOCM_CD	TIOCM_CAR	/* carrier detect (alt)	*/
-#endif
-
-#if !defined(TIOCMSET)
-#define	TIOCMSET	(('d' << 8) | 252)	/* set modem ctrl state	*/
-#define	TIOCMGET	(('d' << 8) | 253)	/* set modem ctrl state	*/
-#endif
-
-#if !defined(TIOCMBIC)
-#define	TIOCMBIC	(('d' << 8) | 254)	/* set modem ctrl state */
-#define	TIOCMBIS	(('d' << 8) | 255)	/* set modem ctrl state */
-#endif
-
 #define DIGI_GETA	(('e' << 8) | 94)	/* Read params */
 #define DIGI_SETA	(('e' << 8) | 95)	/* Set params */
 #define DIGI_SETAW	(('e' << 8) | 96)	/* Drain & set params */
 #define DIGI_SETAF	(('e' << 8) | 97)	/* Drain, flush & set params */
-#define DIGI_GET_NI_INFO (('d' << 8) | 250)	/* Non-intelligent state info */
 #define DIGI_LOOPBACK (('d' << 8) | 252)	/* Enable/disable UART
 						 * internal loopback
 						 */
@@ -88,49 +54,6 @@ struct digi_t {
 };
 
 /**
- * struct digi_dinfo - Driver status information.
- * @dinfo_nboards: Number of boards configured.
- * @dinfo_reserved: Not used, for future expansion.
- * @dinfio_version: Driver version.
- */
-struct digi_dinfo {
-	unsigned int	dinfo_nboards;
-	char		dinfo_reserved[12];
-	char		dinfo_version[16];
-};
-
-#define	DIGI_GETDD	(('d' << 8) | 248)	/* get driver info */
-
-/**
- * struct digi_info - Ioctl commands for per board information.
- *
- * Physsize and memsize differ when board has "windowed" memory.
- *
- * @info_bdnum: Board number (0 based).
- * @info_ioport: IO port address.
- * @indo_physaddr: Memory address.
- * @info_physize: Size of host memory window.
- * @info_memsize: Amount of dual-port memory on board.
- * @info_bdtype: Board type.
- * @info_nports: Number of ports.
- * @info_bdstate: Board state.
- * @info_reserved: Not used, for future expansion.
- */
-struct digi_info {
-	unsigned int	info_bdnum;
-	unsigned int	info_ioport;
-	unsigned int	info_physaddr;
-	unsigned int	info_physsize;
-	unsigned int	info_memsize;
-	unsigned short	info_bdtype;
-	unsigned short	info_nports;
-	char		info_bdstate;
-	char		info_reserved[7];
-};
-
-#define	DIGI_GETBD	(('d' << 8) | 249)	/* get board info */
-
-/**
  * struct digi_getbuffer - Holds buffer use counts.
  */
 struct digi_getbuffer {
@@ -161,10 +84,6 @@ struct digi_getcounter {
 	unsigned long tbytes;
 };
 
-/* Board State Definitions */
-#define	BD_RUNNING	0x0
-#define	BD_NOFEP	0x5
-
 #define DIGI_SETCUSTOMBAUD _IOW('e', 106, int)	/* Set integer baud rate */
 #define DIGI_GETCUSTOMBAUD _IOR('e', 107, int)	/* Get integer baud rate */
 
@@ -204,11 +123,6 @@ struct ni_info {
 	unsigned int baud;
 };
 
-#define T_CLASSIC 0002
-#define T_PCIBUS 0400
-#define T_NEO_EXPRESS 0001
-#define T_NEO 0000
-
 #define TTY_FLIPBUF_SIZE 512
 
 #endif	/* _DIGI_H */