Merge tag 'tty-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull TTY/Serial merge from Greg Kroah-Hartman:
 "Here's the big tty/serial tree set of changes for 3.8-rc1.

  Contained in here is a bunch more reworks of the tty port layer from
  Jiri and bugfixes from Alan, along with a number of other tty and
  serial driver updates by the various driver authors.

  Also, Jiri has been coerced^Wconvinced to be the co-maintainer of the
  TTY layer, which is much appreciated by me.

  All of these have been in the linux-next tree for a while.

  Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"

Fixed up some trivial conflicts in the staging tree, due to the fwserial
driver having come in both ways (but fixed up a bit in the serial tree),
and the ioctl handling in the dgrp driver having been done slightly
differently (staging tree got that one right, and removed both
TIOCGSOFTCAR and TIOCSSOFTCAR).

* tag 'tty-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (146 commits)
  staging: sb105x: fix potential NULL pointer dereference in mp_chars_in_buffer()
  staging/fwserial: Remove superfluous free
  staging/fwserial: Use WARN_ONCE when port table is corrupted
  staging/fwserial: Destruct embedded tty_port on teardown
  staging/fwserial: Fix build breakage when !CONFIG_BUG
  staging: fwserial: Add TTY-over-Firewire serial driver
  drivers/tty/serial/serial_core.c: clean up HIGH_BITS_OFFSET usage
  staging: dgrp: dgrp_tty.c: Audit the return values of get/put_user()
  staging: dgrp: dgrp_tty.c: Remove the TIOCSSOFTCAR ioctl handler from dgrp driver
  serial: ifx6x60: Add modem power off function in the platform reboot process
  serial: mxs-auart: unmap the scatter list before we copy the data
  serial: mxs-auart: disable the Receive Timeout Interrupt when DMA is enabled
  serial: max310x: Setup missing "can_sleep" field for GPIO
  tty/serial: fix ifx6x60.c declaration warning
  serial: samsung: add devicetree properties for non-Exynos SoCs
  serial: samsung: fix potential soft lockup during uart write
  tty: vt: Remove redundant null check before kfree.
  tty/8250 Add check for pci_ioremap_bar failure
  tty/8250 Add support for Commtech's Fastcom Async-335 and Fastcom Async-PCIe cards
  tty/8250 Add XR17D15x devices to the exar_handle_irq override
  ...

16 files changed, 4203 insertions, 110 deletions

diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig
index 943ca607200..329bdb42109 100644
--- a/drivers/staging/Kconfig
+++ b/drivers/staging/Kconfig
@@ -138,6 +138,8 @@ source "drivers/staging/imx-drm/Kconfig"
 
 source "drivers/staging/dgrp/Kconfig"
 
+source "drivers/staging/sb105x/Kconfig"
+
 source "drivers/staging/fwserial/Kconfig"
 
 endif # STAGING
diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
index 20c764d7ab3..c7ec486680f 100644
--- a/drivers/staging/Makefile
+++ b/drivers/staging/Makefile
@@ -61,4 +61,5 @@ obj-$(CONFIG_NET_VENDOR_SILICOM)	+= silicom/
 obj-$(CONFIG_CED1401)		+= ced1401/
 obj-$(CONFIG_DRM_IMX)		+= imx-drm/
 obj-$(CONFIG_DGRP)		+= dgrp/
+obj-$(CONFIG_SB105X)		+= sb105x/
 obj-$(CONFIG_FIREWIRE_SERIAL)	+= fwserial/
diff --git a/drivers/staging/ccg/u_serial.c b/drivers/staging/ccg/u_serial.c
index 5b3f5fffea9..373c40656b5 100644
--- a/drivers/staging/ccg/u_serial.c
+++ b/drivers/staging/ccg/u_serial.c
@@ -1140,8 +1140,10 @@ int gserial_setup(struct usb_gadget *g, unsigned count)
 
 	return status;
 fail:
-	while (count--)
+	while (count--) {
+		tty_port_destroy(&ports[count].port->port);
 		kfree(ports[count].port);
+	}
 	put_tty_driver(gs_tty_driver);
 	gs_tty_driver = NULL;
 	return status;
@@ -1195,6 +1197,7 @@ void gserial_cleanup(void)
 
 		WARN_ON(port->port_usb != NULL);
 
+		tty_port_destroy(&port->port);
 		kfree(port);
 	}
 	n_ports = 0;
diff --git a/drivers/staging/dgrp/dgrp_common.h b/drivers/staging/dgrp/dgrp_common.h
index 05ff338471a..0583fe9c7b0 100644
--- a/drivers/staging/dgrp/dgrp_common.h
+++ b/drivers/staging/dgrp/dgrp_common.h
@@ -31,7 +31,6 @@
  * All global storage allocation.
  ************************************************************************/
 
-extern int dgrp_rawreadok;  /* Allow raw writing of input */
 extern int dgrp_register_cudevices; /* enable legacy cu devices */
 extern int dgrp_register_prdevices; /* enable transparent print devices */
 extern int dgrp_poll_tick;          /* Poll interval - in ms */
diff --git a/drivers/staging/dgrp/dgrp_driver.c b/drivers/staging/dgrp/dgrp_driver.c
index 6e4a0ebc074..aa262588e9b 100644
--- a/drivers/staging/dgrp/dgrp_driver.c
+++ b/drivers/staging/dgrp/dgrp_driver.c
@@ -39,14 +39,10 @@ MODULE_VERSION(DIGI_VERSION);
 struct list_head nd_struct_list;
 struct dgrp_poll_data dgrp_poll_data;
 
-int dgrp_rawreadok = 1;		/* Bypass flipbuf on input */
 int dgrp_register_cudevices = 1;/* Turn on/off registering legacy cu devices */
 int dgrp_register_prdevices = 1;/* Turn on/off registering transparent print */
 int dgrp_poll_tick = 20;	/* Poll interval - in ms */
 
-module_param_named(rawreadok, dgrp_rawreadok, int, 0644);
-MODULE_PARM_DESC(rawreadok, "Bypass flip buffers on input");
-
 module_param_named(register_cudevices, dgrp_register_cudevices, int, 0644);
 MODULE_PARM_DESC(register_cudevices, "Turn on/off registering legacy cu devices");
 
diff --git a/drivers/staging/dgrp/dgrp_net_ops.c b/drivers/staging/dgrp/dgrp_net_ops.c
index c409cd03e8c..2d1bbfd5b67 100644
--- a/drivers/staging/dgrp/dgrp_net_ops.c
+++ b/drivers/staging/dgrp/dgrp_net_ops.c
@@ -151,20 +151,15 @@ static void dgrp_read_data_block(struct ch_struct *ch, u8 *flipbuf,
  * Copys the rbuf to the flipbuf and sends to line discipline.
  * Sends input buffer data to the line discipline.
  *
- * There are several modes to consider here:
- *    rawreadok, tty->real_raw, and IF_PARMRK
  */
 static void dgrp_input(struct ch_struct *ch)
 {
 	struct nd_struct *nd;
 	struct tty_struct *tty;
-	int remain;
 	int data_len;
 	int len;
-	int flip_len;
 	int tty_count;
 	ulong lock_flags;
-	struct tty_ldisc *ld;
 	u8  *myflipbuf;
 	u8  *myflipflagbuf;
 
@@ -212,37 +207,11 @@ static void dgrp_input(struct ch_struct *ch)
 
 	spin_unlock_irqrestore(&nd->nd_lock, lock_flags);
 
-	/* Decide how much data we can send into the tty layer */
-	if (dgrp_rawreadok && tty->real_raw)
-		flip_len = MYFLIPLEN;
-	else
-		flip_len = TTY_FLIPBUF_SIZE;
-
 	/* data_len should be the number of chars that we read in */
 	data_len = (ch->ch_rin - ch->ch_rout) & RBUF_MASK;
-	remain = data_len;
 
 	/* len is the amount of data we are going to transfer here */
-	len = min(data_len, flip_len);
-
-	/* take into consideration length of ldisc */
-	len = min(len, (N_TTY_BUF_SIZE - 1) - tty->read_cnt);
-
-	ld = tty_ldisc_ref(tty);
-
-	/*
-	 * If we were unable to get a reference to the ld,
-	 * don't flush our buffer, and act like the ld doesn't
-	 * have any space to put the data right now.
-	 */
-	if (!ld) {
-		len = 0;
-	} else if (!ld->ops->receive_buf) {
-		spin_lock_irqsave(&nd->nd_lock, lock_flags);
-		ch->ch_rout = ch->ch_rin;
-		spin_unlock_irqrestore(&nd->nd_lock, lock_flags);
-		len = 0;
-	}
+	len = tty_buffer_request_room(tty, data_len);
 
 	/* Check DPA flow control */
 	if ((nd->nd_dpa_debug) &&
@@ -254,42 +223,22 @@ static void dgrp_input(struct ch_struct *ch)
 
 		dgrp_read_data_block(ch, myflipbuf, len);
 
-		/*
-		 * In high performance mode, we don't have to update
-		 * flag_buf or any of the counts or pointers into flip buf.
-		 */
-		if (!dgrp_rawreadok || !tty->real_raw) {
-			if (I_PARMRK(tty) || I_BRKINT(tty) || I_INPCK(tty))
-				parity_scan(ch, myflipbuf, myflipflagbuf, &len);
-			else
-				memset(myflipflagbuf, TTY_NORMAL, len);
-		}
+		if (I_PARMRK(tty) || I_BRKINT(tty) || I_INPCK(tty))
+			parity_scan(ch, myflipbuf, myflipflagbuf, &len);
+		else
+			memset(myflipflagbuf, TTY_NORMAL, len);
 
 		if ((nd->nd_dpa_debug) &&
 		    (nd->nd_dpa_port == PORT_NUM(MINOR(tty_devnum(tty)))))
 			dgrp_dpa_data(nd, 1, myflipbuf, len);
 
-		/*
-		 * If we're doing raw reads, jam it right into the
-		 * line disc bypassing the flip buffers.
-		 */
-		if (dgrp_rawreadok && tty->real_raw)
-			ld->ops->receive_buf(tty, myflipbuf, NULL, len);
-		else {
-			len = tty_buffer_request_room(tty, len);
-			tty_insert_flip_string_flags(tty, myflipbuf,
-						     myflipflagbuf, len);
-
-			/* Tell the tty layer its okay to "eat" the data now */
-			tty_flip_buffer_push(tty);
-		}
+		tty_insert_flip_string_flags(tty, myflipbuf,
+					     myflipflagbuf, len);
+		tty_flip_buffer_push(tty);
 
 		ch->ch_rxcount += len;
 	}
 
-	if (ld)
-		tty_ldisc_deref(ld);
-
 	/*
 	 * Wake up any sleepers (maybe dgrp close) that might be waiting
 	 * for a channel flag state change.
@@ -2549,7 +2498,7 @@ data:
 
 			/*
 			 *  Fabricate and insert a data packet header to
-			 *  preceed the remaining data when it comes in.
+			 *  preced the remaining data when it comes in.
 			 */
 
 			if (remain < plen) {
@@ -2718,7 +2667,7 @@ data:
 						}
 
 						/*
-						 *  Handle delayed response arrival preceeding
+						 *  Handle delayed response arrival preceding
 						 *  the open response we are waiting for.
 						 */
 
@@ -3556,7 +3505,7 @@ void dgrp_poll_handler(unsigned long arg)
 		/*
 		 * Decrement statistics.  These are only for use with
 		 * KME, so don't worry that the operations are done
-		 * unlocked, and so the results are occassionally wrong.
+		 * unlocked, and so the results are occasionally wrong.
 		 */
 
 		nd->nd_read_count -= (nd->nd_read_count +
diff --git a/drivers/staging/dgrp/dgrp_specproc.c b/drivers/staging/dgrp/dgrp_specproc.c
index 24327c3bad8..c214078a89e 100644
--- a/drivers/staging/dgrp/dgrp_specproc.c
+++ b/drivers/staging/dgrp/dgrp_specproc.c
@@ -629,8 +629,6 @@ static int info_proc_show(struct seq_file *m, void *v)
 {
 	seq_printf(m, "version: %s\n", DIGI_VERSION);
 	seq_puts(m, "register_with_sysfs: 1\n");
-	seq_printf(m, "rawreadok: 0x%08x\t(%d)\n",
-		   dgrp_rawreadok, dgrp_rawreadok);
 	seq_printf(m, "pollrate: 0x%08x\t(%d)\n",
 		   dgrp_poll_tick, dgrp_poll_tick);
 
@@ -754,6 +752,8 @@ static int dgrp_add_id(long id)
 
 	return 0;
 
+	/* FIXME this guy should free the tty driver stored in nd and destroy
+	 * all channel ports */
 error_out:
 	kfree(nd);
 	return ret;
diff --git a/drivers/staging/dgrp/dgrp_sysfs.c b/drivers/staging/dgrp/dgrp_sysfs.c
index 43ab9f4d934..be179adfb7c 100644
--- a/drivers/staging/dgrp/dgrp_sysfs.c
+++ b/drivers/staging/dgrp/dgrp_sysfs.c
@@ -54,23 +54,6 @@ static DEVICE_ATTR(register_with_sysfs, 0400,
 		   dgrp_class_register_with_sysfs_show, NULL);
 
 
-static ssize_t dgrp_class_rawreadok_show(struct device *c,
-					 struct device_attribute *attr,
-					 char *buf)
-{
-	return snprintf(buf, PAGE_SIZE, "%d\n", dgrp_rawreadok);
-}
-static ssize_t dgrp_class_rawreadok_store(struct device *c,
-					  struct device_attribute *attr,
-					  const char *buf, size_t count)
-{
-	sscanf(buf, "0x%x\n", &dgrp_rawreadok);
-	return count;
-}
-static DEVICE_ATTR(rawreadok, 0600, dgrp_class_rawreadok_show,
-		   dgrp_class_rawreadok_store);
-
-
 static ssize_t dgrp_class_pollrate_show(struct device *c,
 					struct device_attribute *attr,
 					char *buf)
@@ -90,7 +73,6 @@ static DEVICE_ATTR(pollrate, 0600, dgrp_class_pollrate_show,
 
 static struct attribute *dgrp_sysfs_global_settings_entries[] = {
 	&dev_attr_pollrate.attr,
-	&dev_attr_rawreadok.attr,
 	&dev_attr_register_with_sysfs.attr,
 	NULL
 };
diff --git a/drivers/staging/dgrp/dgrp_tty.c b/drivers/staging/dgrp/dgrp_tty.c
index efa62ced7c8..51d3ed3dca2 100644
--- a/drivers/staging/dgrp/dgrp_tty.c
+++ b/drivers/staging/dgrp/dgrp_tty.c
@@ -432,7 +432,7 @@ static void drp_param(struct ch_struct *ch)
 	/*
 	 * From the POSIX.1 spec (7.1.2.6): "If {_POSIX_VDISABLE}
 	 * is defined for the terminal device file, and the value
-	 * of one of the changable special control characters (see
+	 * of one of the changeable special control characters (see
 	 * 7.1.1.9) is {_POSIX_VDISABLE}, that function shall be
 	 * disabled, that is, no input data shall be recognized as
 	 * the disabled special character."
@@ -2265,9 +2265,7 @@ static int get_modem_info(struct ch_struct *ch, unsigned int *value)
 		| ((mlast & DM_RI)  ? TIOCM_RNG : 0)
 		| ((mlast & DM_DSR) ? TIOCM_DSR : 0)
 		| ((mlast & DM_CTS) ? TIOCM_CTS : 0);
-	put_user(mlast, (unsigned int __user *) value);
-
-	return 0;
+	return put_user(mlast, (unsigned int __user *) value);
 }
 
 /*
@@ -2285,7 +2283,8 @@ static int set_modem_info(struct ch_struct *ch, unsigned int command,
 	if (error == 0)
 		return -EFAULT;
 
-	get_user(arg, (unsigned int __user *) value);
+	if (get_user(arg, (unsigned int __user *) value))
+		return -EFAULT;
 	mval |= ((arg & TIOCM_RTS) ? DM_RTS : 0)
 		| ((arg & TIOCM_DTR) ? DM_DTR : 0);
 
@@ -2684,7 +2683,7 @@ static int dgrp_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 	- looking at the tty_ioctl code, these command all call our
 	tty_set_termios at the driver's end, when a TCSETA* is sent,
 	it is expecting the tty to have a termio structure,
-	NOT a termios stucture.  These two structures differ in size
+	NOT a termios structure.  These two structures differ in size
 	and the tty_ioctl code does a conversion before processing them both.
 	- we should treat the TCSETAW TCSETAF ioctls the same, and let
 	the tty_ioctl code do the conversion stuff.
@@ -2836,17 +2835,16 @@ static int dgrp_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 		break;
 
 	case DIGI_GETCUSTOMBAUD:
-		rc = access_ok(VERIFY_WRITE, (void __user *) arg, sizeof(int));
-		if (rc == 0)
+		if (put_user(ch->ch_custom_speed, (unsigned int __user *) arg))
 			return -EFAULT;
-		put_user(ch->ch_custom_speed, (unsigned int __user *) arg);
 		break;
 
 	case DIGI_SETCUSTOMBAUD:
 	{
 		int new_rate;
 
-		get_user(new_rate, (unsigned int __user *) arg);
+		if (get_user(new_rate, (unsigned int __user *) arg))
+			return -EFAULT;
 		dgrp_set_custom_speed(ch, new_rate);
 
 		break;
@@ -2981,7 +2979,7 @@ static void dgrp_tty_start(struct tty_struct *tty)
 }
 
 /*
- *	Stop the reciever
+ *	Stop the receiver
  */
 static void dgrp_tty_input_stop(struct tty_struct *tty)
 {
@@ -3104,6 +3102,7 @@ static void dgrp_tty_hangup(struct tty_struct *tty)
 void
 dgrp_tty_uninit(struct nd_struct *nd)
 {
+	unsigned int i;
 	char id[3];
 
 	ID_TO_CHAR(nd->nd_ID, id);
@@ -3137,6 +3136,8 @@ dgrp_tty_uninit(struct nd_struct *nd)
 		put_tty_driver(nd->nd_xprint_ttdriver);
 		nd->nd_ttdriver_flags &= ~XPRINT_TTDRV_REG;
 	}
+	for (i = 0; i < CHAN_MAX; i++)
+		tty_port_destroy(&nd->nd_chan[i].port);
 }
 
 
@@ -3320,7 +3321,6 @@ dgrp_tty_init(struct nd_struct *nd)
 		init_waitqueue_head(&(ch->ch_pun.un_open_wait));
 		init_waitqueue_head(&(ch->ch_pun.un_close_wait));
 		tty_port_init(&ch->port);
-		tty_port_init(&ch->port);
 	}
 	return 0;
 }
diff --git a/drivers/staging/fwserial/fwserial.c b/drivers/staging/fwserial/fwserial.c
index 5d4d64a3ea8..61ee29083b2 100644
--- a/drivers/staging/fwserial/fwserial.c
+++ b/drivers/staging/fwserial/fwserial.c
@@ -939,14 +939,9 @@ static void fwserial_destroy(struct kref *kref)
 
 	mutex_lock(&port_table_lock);
 	for (j = 0; j < num_ports; ++i, ++j) {
-		static bool once;
-		int corrupt = port_table[i] != ports[j];
-		if (corrupt && !once) {
-			WARN(corrupt, "port_table[%d]: %p != ports[%d]: %p",
-			     i, port_table[i], j, ports[j]);
-			once = true;
-			port_table_corrupt = true;
-		}
+		port_table_corrupt |= port_table[i] != ports[j];
+		WARN_ONCE(port_table_corrupt, "port_table[%d]: %p != ports[%d]: %p",
+		     i, port_table[i], j, ports[j]);
 
 		port_table[i] = NULL;
 	}
@@ -954,7 +949,7 @@ static void fwserial_destroy(struct kref *kref)
 
 	for (j = 0; j < num_ports; ++j) {
 		fw_core_remove_address_handler(&ports[j]->rx_handler);
-		dma_fifo_free(&ports[j]->tx_fifo);
+		tty_port_destroy(&ports[j]->port);
 		kfree(ports[j]);
 	}
 	kfree(serial);
@@ -2369,8 +2364,10 @@ unregister_ttys:
 	return err;
 
 free_ports:
-	for (--i; i >= 0; --i)
+	for (--i; i >= 0; --i) {
+		tty_port_destroy(&serial->ports[i]->port);
 		kfree(serial->ports[i]);
+	}
 	kfree(serial);
 	return err;
 }
diff --git a/drivers/staging/sb105x/Kconfig b/drivers/staging/sb105x/Kconfig
new file mode 100644
index 00000000000..ac87c5e38de
--- /dev/null
+++ b/drivers/staging/sb105x/Kconfig
@@ -0,0 +1,9 @@
+config SB105X
+	tristate "SystemBase PCI Multiport UART"
+	select SERIAL_CORE
+	depends on PCI
+	help
+	  A driver for the SystemBase Multi-2/PCI serial card
+
+	  To compile this driver a module, choose M here: the module
+	  will be called "sb105x".
diff --git a/drivers/staging/sb105x/Makefile b/drivers/staging/sb105x/Makefile
new file mode 100644
index 00000000000..b1bf3779aca
--- /dev/null
+++ b/drivers/staging/sb105x/Makefile
@@ -0,0 +1,3 @@
+obj-$(CONFIG_SB105X) +=	sb105x.o
+
+sb105x-y :=  sb_pci_mp.o
diff --git a/drivers/staging/sb105x/sb_mp_register.h b/drivers/staging/sb105x/sb_mp_register.h
new file mode 100644
index 00000000000..5480ae11368
--- /dev/null
+++ b/drivers/staging/sb105x/sb_mp_register.h
@@ -0,0 +1,295 @@
+
+/*
+ * SB105X_UART.h
+ *
+ * Copyright (C) 2008 systembase
+ *
+ * UART registers.
+ *
+ * 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 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef UART_SB105X_H
+#define UART_SB105X_H
+
+/* 
+ * option register 
+ */
+
+/* Device Infomation Register */
+#define MP_OPTR_DIR0		0x04 	/* port0 ~ port8 */
+#define MP_OPTR_DIR1		0x05 	/* port8 ~ port15 */
+#define MP_OPTR_DIR2		0x06 	/* port16 ~ port23 */
+#define MP_OPTR_DIR3		0x07 	/* port24 ~ port31 */
+
+#define DIR_UART_16C550 	0
+#define DIR_UART_16C1050	1
+#define DIR_UART_16C1050A	2
+
+#define	DIR_CLK_1843200		0x0		/* input clock 1843200 Hz */
+#define	DIR_CLK_3686400		0x1		/* input clock 3686400 Hz */
+#define	DIR_CLK_7372800		0x2		/* input clock 7372800 Hz */
+#define	DIR_CLK_14745600	0x3		/* input clock 14745600 Hz */
+#define	DIR_CLK_29491200	0x4		/* input clock 29491200 Hz */
+#define	DIR_CLK_58985400	0x5		/* input clock 58985400 Hz */
+
+/* Interface Information Register */
+#define MP_OPTR_IIR0		0x08 	/* port0 ~ port8 */
+#define MP_OPTR_IIR1		0x09 	/* port8 ~ port15 */
+#define MP_OPTR_IIR2		0x0A 	/* port16 ~ port23 */
+#define MP_OPTR_IIR3		0x0B 	/* port24 ~ port31 */
+
+#define IIR_RS232		0x00		/* RS232 type */
+#define IIR_RS422		0x10		/* RS422 type */
+#define IIR_RS485		0x20		/* RS485 type */
+#define IIR_UNKNOWN		0x30		/* unknown type */
+
+/* Interrrupt Mask Register */
+#define MP_OPTR_IMR0		0x0C 	/* port0 ~ port8 */
+#define MP_OPTR_IMR1		0x0D 	/* port8 ~ port15 */
+#define MP_OPTR_IMR2		0x0E 	/* port16 ~ port23 */
+#define MP_OPTR_IMR3		0x0F 	/* port24 ~ port31 */
+
+/* Interrupt Poll Register */
+#define MP_OPTR_IPR0		0x10 	/* port0 ~ port8 */
+#define MP_OPTR_IPR1		0x11 	/* port8 ~ port15 */
+#define MP_OPTR_IPR2		0x12 	/* port16 ~ port23 */
+#define MP_OPTR_IPR3		0x13 	/* port24 ~ port31 */
+
+/* General Purpose Output Control Register */
+#define MP_OPTR_GPOCR		0x20
+
+/* General Purpose Output Data Register */
+#define MP_OPTR_GPODR		0x21
+
+/* Parallel Additional Function Register */
+#define MP_OPTR_PAFR		0x23
+
+/*
+ * systembase 16c105x UART register
+ */
+
+#define PAGE_0 0
+#define PAGE_1 1
+#define PAGE_2 2
+#define PAGE_3 3
+#define PAGE_4 4
+
+/*
+ *  ******************************************************************
+ *  * DLAB=0                  ===============       Page 0 Registers *
+ *  ******************************************************************
+ */
+
+#define SB105X_RX		0	/* In:  Receive buffer */
+#define SB105X_TX		0	/* Out: Transmit buffer */
+
+#define SB105X_IER		1	/* Out: Interrupt Enable Register */
+
+#define SB105X_IER_CTSI	  	0x80	/* CTS# Interrupt Enable (Requires EFR[4] = 1) */
+#define SB105X_IER_RTSI	  	0x40	/* RTS# Interrupt Enable (Requires EFR[4] = 1) */
+#define SB105X_IER_XOI	  	0x20	/* Xoff Interrupt Enable (Requires EFR[4] = 1) */
+#define SB105X_IER_SME	  	0x10	/* Sleep Mode Enable (Requires EFR[4] = 1) */
+#define SB105X_IER_MSI	  	0x08	/* Enable Modem status interrupt */
+#define SB105X_IER_RLSI	  	0x04	/* Enable receiver line status interrupt */
+#define SB105X_IER_THRI	  	0x02	/* Enable Transmitter holding register int. */
+#define SB105X_IER_RDI	  	0x01	/* Enable receiver data interrupt */
+
+#define SB105X_ISR		2	/* In:  Interrupt ID Register */
+
+#define SB105X_ISR_NOINT	0x01	/* No interrupts pending */
+#define SB105X_ISR_RLSI	  	0x06	/* Receiver line status interrupt (Priority = 1)*/
+#define SB105X_ISR_RDAI	  	0x0c	/* Receive Data Available interrupt */
+#define SB105X_ISR_CTII	  	0x04	/* Character Timeout Indication interrupt */
+#define SB105X_ISR_THRI	  	0x02	/* Transmitter holding register empty */
+#define SB105X_ISR_MSI	  	0x00	/* Modem status interrupt */
+#define SB105X_ISR_RXCI	  	0x10	/* Receive Xoff or Special Character interrupt */
+#define SB105X_ISR_RCSI	  	0x20	/* RTS#, CTS# status interrupt during Auto RTS/CTS flow control */
+
+#define SB105X_FCR		2	/* Out: FIFO Control Register */
+
+#define SB105X_FCR_FEN    	0x01	/* FIFO Enable */
+#define SB105X_FCR_RXFR	  	0x02	/* RX FIFO Reset */
+#define SB105X_FCR_TXFR	  	0x04	/* TX FIFO Reset */
+#define SB105X_FCR_DMS	  	0x08	/* DMA Mode Select */
+
+#define SB105X_FCR_RTR08  	0x00	/* Receice Trigger Level set at 8 */
+#define SB105X_FCR_RTR16  	0x40  /* Receice Trigger Level set at 16 */
+#define SB105X_FCR_RTR56  	0x80  /* Receice Trigger Level set at 56 */
+#define SB105X_FCR_RTR60  	0xc0  /* Receice Trigger Level set at 60 */
+#define SB105X_FCR_TTR08  	0x00  /* Transmit Trigger Level set at 8 */
+#define SB105X_FCR_TTR16	0x10  /* Transmit Trigger Level set at 16 */
+#define SB105X_FCR_TTR32	0x20  /* Transmit Trigger Level set at 32 */
+#define SB105X_FCR_TTR56	0x30  /* Transmit Trigger Level set at 56 */
+
+#define SB105X_LCR		3	/* Out: Line Control Register */
+/*
+ *  * Note: if the word length is 5 bits (SB105X_LCR_WLEN5), then setting 
+ *  * SB105X_LCR_STOP will select 1.5 stop bits, not 2 stop bits.
+ */
+#define SB105X_LCR_DLAB   	0x80  /* Divisor Latch Enable */
+#define SB105X_LCR_SBC    	0x40  /* Break Enable*/
+#define SB105X_LCR_SPAR   	0x20  /* Set Stick parity */
+#define SB105X_LCR_EPAR   	0x10  /* Even parity select */
+#define SB105X_LCR_PAREN  	0x08  /* Parity Enable */
+#define SB105X_LCR_STOP   	0x04  /* Stop bits: 0->1 bit, 1->2 bits, 1 and SB105X_LCR_WLEN5 -> 1.5 bit */
+#define SB105X_LCR_WLEN5  	0x00  /* Wordlength: 5 bits */
+#define SB105X_LCR_WLEN6  	0x01  /* Wordlength: 6 bits */
+#define SB105X_LCR_WLEN7  	0x02  /* Wordlength: 7 bits */
+#define SB105X_LCR_WLEN8  	0x03  /* Wordlength: 8 bits */
+
+#define SB105X_LCR_BF		0xBF
+
+#define SB105X_MCR		4	/* Out: Modem Control Register */
+#define SB105X_MCR_CPS    	0x80  /* Clock Prescaler Select */
+#define SB105X_MCR_P2S    	0x40  /* Page 2 Select /Xoff Re-Transmit Access Enable */
+#define SB105X_MCR_XOA    	0x20  /* Xon Any Enable */
+#define SB105X_MCR_ILB		0x10  /* Internal Loopback Enable */
+#define SB105X_MCR_OUT2		0x08  /* Out2/Interrupt Output Enable*/
+#define SB105X_MCR_OUT1		0x04  /* Out1/Interrupt Output Enable */
+#define SB105X_MCR_RTS    	0x02  /* RTS# Output */
+#define SB105X_MCR_DTR    	0x01  /* DTR# Output */
+
+#define SB105X_LSR		5	/* In:  Line Status Register */
+#define SB105X_LSR_RFEI   	0x80  /* Receive FIFO data error Indicator */
+#define SB105X_LSR_TEMI   	0x40  /* THR and TSR Empty Indicator */
+#define SB105X_LSR_THRE		0x20  /* THR Empty Indicator */
+#define SB105X_LSR_BII		0x10  /* Break interrupt indicator */
+#define SB105X_LSR_FEI		0x08  /* Frame error indicator */
+#define SB105X_LSR_PEI		0x04  /* Parity error indicator */
+#define SB105X_LSR_OEI		0x02  /* Overrun error indicator */
+#define SB105X_LSR_RDRI		0x01  /* Receive data ready Indicator*/
+
+#define SB105X_MSR		6	/* In:  Modem Status Register */
+#define SB105X_MSR_DCD		0x80  /* Data Carrier Detect */
+#define SB105X_MSR_RI		0x40  /* Ring Indicator */
+#define SB105X_MSR_DSR		0x20  /* Data Set Ready */
+#define SB105X_MSR_CTS		0x10  /* Clear to Send */
+#define SB105X_MSR_DDCD		0x08  /* Delta DCD */
+#define SB105X_MSR_DRI		0x04  /* Delta ring indicator */
+#define SB105X_MSR_DDSR		0x02  /* Delta DSR */
+#define SB105X_MSR_DCTS		0x01  /* Delta CTS */
+
+#define SB105XA_MDR		6	/* Out: Multi Drop mode Register */
+#define SB105XA_MDR_NPS		0x08  /* 9th Bit Polarity Select */
+#define SB105XA_MDR_AME		0x02  /* Auto Multi-drop Enable */
+#define SB105XA_MDR_MDE		0x01  /* Multi Drop Enable */
+
+#define SB105X_SPR		7	/* I/O: Scratch Register */
+
+/*
+ * DLAB=1
+ */
+#define SB105X_DLL		0	/* Out: Divisor Latch Low */
+#define SB105X_DLM		1	/* Out: Divisor Latch High */
+
+/*
+ *  ******************************************************************
+ *  * DLAB(LCR[7]) = 0 , MCR[6] = 1  =============  Page 2 Registers *
+ *  ******************************************************************
+ */
+#define SB105X_GICR		1	/* Global Interrupt Control Register */
+#define SB105X_GICR_GIM   	0x01  /* Global Interrupt Mask */
+
+#define SB105X_GISR		2	/* Global Interrupt Status Register */
+#define SB105X_GISR_MGICR0  	0x80  /* Mirror the content of GICR[0] */
+#define SB105X_GISR_CS3IS   	0x08  /* SB105X of CS3# Interrupt Status */
+#define SB105X_GISR_CS2IS   	0x04  /* SB105X of CS2# Interrupt Status */
+#define SB105X_GISR_CS1IS   	0x02  /* SB105X of CS1# Interrupt Status */
+#define SB105X_GISR_CS0IS   	0x01  /* SB105X of CS0# Interrupt Status */
+
+#define SB105X_TFCR		5	/* Transmit FIFO Count Register */
+
+#define SB105X_RFCR		6	/* Receive FIFO Count Register */
+
+#define	SB105X_FSR		7	/* Flow Control Status Register */
+#define SB105X_FSR_THFS     	0x20  /* Transmit Hardware Flow Control Status */
+#define SB105X_FSR_TSFS     	0x10  /* Transmit Software Flow Control Status */
+#define SB105X_FSR_RHFS     	0x02  /* Receive Hardware Flow Control Status */
+#define SB105X_FSR_RSFS     	0x01  /* Receive Software Flow Control Status */
+
+/*
+ *  ******************************************************************
+ *  * LCR = 0xBF, PSR[0] = 0       =============    Page 3 Registers *
+ *  ******************************************************************
+ */
+
+#define SB105X_PSR		0	/* Page Select Register */
+#define SB105X_PSR_P3KEY    	0xA4 /* Page 3 Select Key */
+#define SB105X_PSR_P4KEY    	0xA5 /* Page 5 Select Key */
+
+#define SB105X_ATR		1	/* Auto Toggle Control Register */
+#define SB105X_ATR_RPS      	0x80  /* RXEN Polarity Select */
+#define SB105X_ATR_RCMS     	0x40  /* RXEN Control Mode Select */
+#define SB105X_ATR_TPS      	0x20  /* TXEN Polarity Select */
+#define SB105X_ATR_TCMS     	0x10  /* TXEN Control Mode Select */
+#define SB105X_ATR_ATDIS    	0x00  /* Auto Toggle is disabled */
+#define SB105X_ATR_ART      	0x01  /* RTS#/TXEN pin operates as TXEN */
+#define SB105X_ATR_ADT      	0x02  /* DTR#/TXEN pin operates as TXEN */
+#define SB105X_ATR_A80      	0x03  /* only in 80 pin use */
+
+#define SB105X_EFR		2	/* (Auto) Enhanced Feature Register */
+#define SB105X_EFR_ACTS     	0x80  /* Auto-CTS Flow Control Enable */
+#define SB105X_EFR_ARTS     	0x40  /* Auto-RTS Flow Control Enable */
+#define SB105X_EFR_SCD      	0x20  /* Special Character Detect */
+#define SB105X_EFR_EFBEN    	0x10  /* Enhanced Function Bits Enable */
+
+#define SB105X_XON1		4	/* Xon1 Character Register */
+#define SB105X_XON2		5	/* Xon2 Character Register */
+#define SB105X_XOFF1		6	/* Xoff1 Character Register */
+#define SB105X_XOFF2		7	/* Xoff2 Character Register */
+
+/*
+ *  ******************************************************************
+ *  * LCR = 0xBF, PSR[0] = 1       ============     Page 4 Registers *
+ *  ******************************************************************
+ */
+
+#define SB105X_AFR		1	/* Additional Feature Register */
+#define SB105X_AFR_GIPS     	0x20  /* Global Interrupt Polarity Select */
+#define SB105X_AFR_GIEN     	0x10  /* Global Interrupt Enable */
+#define SB105X_AFR_AFEN     	0x01  /* 256-byte FIFO Enable */
+
+#define SB105X_XRCR		2	/* Xoff Re-transmit Count Register */
+#define SB105X_XRCR_NRC1    	0x00  /* Transmits Xoff Character whenever the number of received data is 1 during XOFF status */
+#define SB105X_XRCR_NRC4    	0x01  /* Transmits Xoff Character whenever the number of received data is 4 during XOFF status */
+#define SB105X_XRCR_NRC8    	0x02  /* Transmits Xoff Character whenever the number of received data is 8 during XOFF status */
+#define SB105X_XRCR_NRC16   	0x03  /* Transmits Xoff Character whenever the number of received data is 16 during XOFF status */
+
+#define SB105X_TTR		4	/* Transmit FIFO Trigger Level Register */
+#define SB105X_RTR		5	/* Receive FIFO Trigger Level Register */
+#define SB105X_FUR		6	/* Flow Control Upper Threshold Register */
+#define SB105X_FLR		7	/* Flow Control Lower Threshold Register */
+
+
+/* page 0 */
+
+#define SB105X_GET_CHAR(port)	inb((port)->iobase + SB105X_RX)
+#define SB105X_GET_IER(port)	inb((port)->iobase + SB105X_IER)
+#define SB105X_GET_ISR(port)	inb((port)->iobase + SB105X_ISR)
+#define SB105X_GET_LCR(port)	inb((port)->iobase + SB105X_LCR)
+#define SB105X_GET_MCR(port)	inb((port)->iobase + SB105X_MCR)
+#define SB105X_GET_LSR(port)	inb((port)->iobase + SB105X_LSR)
+#define SB105X_GET_MSR(port)	inb((port)->iobase + SB105X_MSR)
+#define SB105X_GET_SPR(port)	inb((port)->iobase + SB105X_SPR)
+
+#define SB105X_PUT_CHAR(port,v)	outb((v),(port)->iobase + SB105X_TX )
+#define SB105X_PUT_IER(port,v)	outb((v),(port)->iobase + SB105X_IER )
+#define SB105X_PUT_FCR(port,v)	outb((v),(port)->iobase + SB105X_FCR )
+#define SB105X_PUT_LCR(port,v)	outb((v),(port)->iobase + SB105X_LCR )
+#define SB105X_PUT_MCR(port,v)	outb((v),(port)->iobase + SB105X_MCR )
+#define SB105X_PUT_SPR(port,v)	outb((v),(port)->iobase + SB105X_SPR )
+
+
+/* page 1 */
+#define SB105X_GET_REG(port,reg)	inb((port)->iobase + (reg))
+#define SB105X_PUT_REG(port,reg,v)	outb((v),(port)->iobase + (reg))
+
+/* page 2 */
+
+#define SB105X_PUT_PSR(port,v)	outb((v),(port)->iobase + SB105X_PSR )
+
+#endif 
diff --git a/drivers/staging/sb105x/sb_pci_mp.c b/drivers/staging/sb105x/sb_pci_mp.c
new file mode 100644
index 00000000000..edb2a85b9d5
--- /dev/null
+++ b/drivers/staging/sb105x/sb_pci_mp.c
@@ -0,0 +1,3196 @@
+#include "sb_pci_mp.h"
+#include <linux/module.h>
+#include <linux/parport.h>
+
+extern struct parport *parport_pc_probe_port(unsigned long base_lo,
+		unsigned long base_hi,
+		int irq, int dma,
+		struct device *dev,
+		int irqflags);
+
+static struct mp_device_t mp_devs[MAX_MP_DEV];
+static int mp_nrpcibrds = sizeof(mp_pciboards)/sizeof(mppcibrd_t);
+static int NR_BOARD=0;
+static int NR_PORTS=0;
+static struct mp_port multi_ports[MAX_MP_PORT];
+static struct irq_info irq_lists[NR_IRQS];
+
+static _INLINE_ unsigned int serial_in(struct mp_port *mtpt, int offset);
+static _INLINE_ void serial_out(struct mp_port *mtpt, int offset, int value);
+static _INLINE_ unsigned int read_option_register(struct mp_port *mtpt, int offset);
+static int sb1054_get_register(struct sb_uart_port * port, int page, int reg);
+static int sb1054_set_register(struct sb_uart_port * port, int page, int reg, int value);
+static void SendATCommand(struct mp_port * mtpt);
+static int set_deep_fifo(struct sb_uart_port * port, int status);
+static int get_deep_fifo(struct sb_uart_port * port);
+static int get_device_type(int arg);
+static int set_auto_rts(struct sb_uart_port *port, int status);
+static void mp_stop(struct tty_struct *tty);
+static void __mp_start(struct tty_struct *tty);
+static void mp_start(struct tty_struct *tty);
+static void mp_tasklet_action(unsigned long data);
+static inline void mp_update_mctrl(struct sb_uart_port *port, unsigned int set, unsigned int clear);
+static int mp_startup(struct sb_uart_state *state, int init_hw);
+static void mp_shutdown(struct sb_uart_state *state);
+static void mp_change_speed(struct sb_uart_state *state, struct MP_TERMIOS *old_termios);
+
+static inline int __mp_put_char(struct sb_uart_port *port, struct circ_buf *circ, unsigned char c);
+static int mp_put_char(struct tty_struct *tty, unsigned char ch);
+
+static void mp_put_chars(struct tty_struct *tty);
+static int mp_write(struct tty_struct *tty, const unsigned char * buf, int count);
+static int mp_write_room(struct tty_struct *tty);
+static int mp_chars_in_buffer(struct t