Merge tag 'tty-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull TTY changes from Greg Kroah-Hartman:
 "As we skipped the merge window for 3.6-rc1 for the tty tree,
  everything is now settled down and working properly, so we are ready
  for 3.7-rc1.  Here's the patchset, it's big, but the large changes are
  removing a firmware file and adding a staging tty driver (it depended
  on the tty core changes, so it's going through this tree instead of
  the staging tree.)

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

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

Fix up more-or-less trivial conflicts in
 - drivers/char/pcmcia/synclink_cs.c:
    tty NULL dereference fix vs tty_port_cts_enabled() helper function
 - drivers/staging/{Kconfig,Makefile}:
    add-add conflict (dgrp driver added close to other staging drivers)
 - drivers/staging/ipack/devices/ipoctal.c:
    "split ipoctal_channel from iopctal" vs "TTY: use tty_port_register_device"

* tag 'tty-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (235 commits)
  tty/serial: Add kgdb_nmi driver
  tty/serial/amba-pl011: Quiesce interrupts in poll_get_char
  tty/serial/amba-pl011: Implement poll_init callback
  tty/serial/core: Introduce poll_init callback
  kdb: Turn KGDB_KDB=n stubs into static inlines
  kdb: Implement disable_nmi command
  kernel/debug: Mask KGDB NMI upon entry
  serial: pl011: handle corruption at high clock speeds
  serial: sccnxp: Make 'default' choice in switch last
  serial: sccnxp: Remove mask termios caps for SW flow control
  serial: sccnxp: Report actual baudrate back to core
  serial: samsung: Add poll_get_char & poll_put_char
  Powerpc 8xx CPM_UART setting MAXIDL register proportionaly to baud rate
  Powerpc 8xx CPM_UART maxidl should not depend on fifo size
  Powerpc 8xx CPM_UART too many interrupts
  Powerpc 8xx CPM_UART desynchronisation
  serial: set correct baud_base for EXSYS EX-41092 Dual 16950
  serial: omap: fix the reciever line error case
  8250: blacklist Winbond CIR port
  8250_pnp: do pnp probe before legacy probe
  ...

1 files changed, 146 insertions, 68 deletions

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index 452278efef29..17b7d26abf41 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -44,7 +44,7 @@ struct pci_serial_quirk {
 	int	(*init)(struct pci_dev *dev);
 	int	(*setup)(struct serial_private *,
 			 const struct pciserial_board *,
-			 struct uart_port *, int);
+			 struct uart_8250_port *, int);
 	void	(*exit)(struct pci_dev *dev);
 };
 
@@ -59,7 +59,7 @@ struct serial_private {
 };
 
 static int pci_default_setup(struct serial_private*,
-	  const struct pciserial_board*, struct uart_port*, int);
+	  const struct pciserial_board*, struct uart_8250_port *, int);
 
 static void moan_device(const char *str, struct pci_dev *dev)
 {
@@ -74,7 +74,7 @@ static void moan_device(const char *str, struct pci_dev *dev)
 }
 
 static int
-setup_port(struct serial_private *priv, struct uart_port *port,
+setup_port(struct serial_private *priv, struct uart_8250_port *port,
 	   int bar, int offset, int regshift)
 {
 	struct pci_dev *dev = priv->dev;
@@ -93,17 +93,17 @@ setup_port(struct serial_private *priv, struct uart_port *port,
 		if (!priv->remapped_bar[bar])
 			return -ENOMEM;
 
-		port->iotype = UPIO_MEM;
-		port->iobase = 0;
-		port->mapbase = base + offset;
-		port->membase = priv->remapped_bar[bar] + offset;
-		port->regshift = regshift;
+		port->port.iotype = UPIO_MEM;
+		port->port.iobase = 0;
+		port->port.mapbase = base + offset;
+		port->port.membase = priv->remapped_bar[bar] + offset;
+		port->port.regshift = regshift;
 	} else {
-		port->iotype = UPIO_PORT;
-		port->iobase = base + offset;
-		port->mapbase = 0;
-		port->membase = NULL;
-		port->regshift = 0;
+		port->port.iotype = UPIO_PORT;
+		port->port.iobase = base + offset;
+		port->port.mapbase = 0;
+		port->port.membase = NULL;
+		port->port.regshift = 0;
 	}
 	return 0;
 }
@@ -113,7 +113,7 @@ setup_port(struct serial_private *priv, struct uart_port *port,
  */
 static int addidata_apci7800_setup(struct serial_private *priv,
 				const struct pciserial_board *board,
-				struct uart_port *port, int idx)
+				struct uart_8250_port *port, int idx)
 {
 	unsigned int bar = 0, offset = board->first_offset;
 	bar = FL_GET_BASE(board->flags);
@@ -140,7 +140,7 @@ static int addidata_apci7800_setup(struct serial_private *priv,
  */
 static int
 afavlab_setup(struct serial_private *priv, const struct pciserial_board *board,
-	      struct uart_port *port, int idx)
+	      struct uart_8250_port *port, int idx)
 {
 	unsigned int bar, offset = board->first_offset;
 
@@ -195,7 +195,7 @@ static int pci_hp_diva_init(struct pci_dev *dev)
 static int
 pci_hp_diva_setup(struct serial_private *priv,
 		const struct pciserial_board *board,
-		struct uart_port *port, int idx)
+		struct uart_8250_port *port, int idx)
 {
 	unsigned int offset = board->first_offset;
 	unsigned int bar = FL_GET_BASE(board->flags);
@@ -370,7 +370,7 @@ static void __devexit pci_ni8430_exit(struct pci_dev *dev)
 /* SBS Technologies Inc. PMC-OCTPRO and P-OCTAL cards */
 static int
 sbs_setup(struct serial_private *priv, const struct pciserial_board *board,
-		struct uart_port *port, int idx)
+		struct uart_8250_port *port, int idx)
 {
 	unsigned int bar, offset = board->first_offset;
 
@@ -525,7 +525,7 @@ static int pci_siig_init(struct pci_dev *dev)
 
 static int pci_siig_setup(struct serial_private *priv,
 			  const struct pciserial_board *board,
-			  struct uart_port *port, int idx)
+			  struct uart_8250_port *port, int idx)
 {
 	unsigned int bar = FL_GET_BASE(board->flags) + idx, offset = 0;
 
@@ -619,7 +619,7 @@ static int pci_timedia_init(struct pci_dev *dev)
 static int
 pci_timedia_setup(struct serial_private *priv,
 		  const struct pciserial_board *board,
-		  struct uart_port *port, int idx)
+		  struct uart_8250_port *port, int idx)
 {
 	unsigned int bar = 0, offset = board->first_offset;
 
@@ -653,7 +653,7 @@ pci_timedia_setup(struct serial_private *priv,
 static int
 titan_400l_800l_setup(struct serial_private *priv,
 		      const struct pciserial_board *board,
-		      struct uart_port *port, int idx)
+		      struct uart_8250_port *port, int idx)
 {
 	unsigned int bar, offset = board->first_offset;
 
@@ -754,7 +754,7 @@ static int pci_ni8430_init(struct pci_dev *dev)
 static int
 pci_ni8430_setup(struct serial_private *priv,
 		 const struct pciserial_board *board,
-		 struct uart_port *port, int idx)
+		 struct uart_8250_port *port, int idx)
 {
 	void __iomem *p;
 	unsigned long base, len;
@@ -781,7 +781,7 @@ pci_ni8430_setup(struct serial_private *priv,
 
 static int pci_netmos_9900_setup(struct serial_private *priv,
 				const struct pciserial_board *board,
-				struct uart_port *port, int idx)
+				struct uart_8250_port *port, int idx)
 {
 	unsigned int bar;
 
@@ -1032,10 +1032,17 @@ static int pci_oxsemi_tornado_init(struct pci_dev *dev)
 	return number_uarts;
 }
 
-static int
-pci_default_setup(struct serial_private *priv,
+static int pci_asix_setup(struct serial_private *priv,
+		  const struct pciserial_board *board,
+		  struct uart_8250_port *port, int idx)
+{
+	port->bugs |= UART_BUG_PARITY;
+	return pci_default_setup(priv, board, port, idx);
+}
+
+static int pci_default_setup(struct serial_private *priv,
 		  const struct pciserial_board *board,
-		  struct uart_port *port, int idx)
+		  struct uart_8250_port *port, int idx)
 {
 	unsigned int bar, offset = board->first_offset, maxnr;
 
@@ -1057,15 +1064,15 @@ pci_default_setup(struct serial_private *priv,
 static int
 ce4100_serial_setup(struct serial_private *priv,
 		  const struct pciserial_board *board,
-		  struct uart_port *port, int idx)
+		  struct uart_8250_port *port, int idx)
 {
 	int ret;
 
 	ret = setup_port(priv, port, 0, 0, board->reg_shift);
-	port->iotype = UPIO_MEM32;
-	port->type = PORT_XSCALE;
-	port->flags = (port->flags | UPF_FIXED_PORT | UPF_FIXED_TYPE);
-	port->regshift = 2;
+	port->port.iotype = UPIO_MEM32;
+	port->port.type = PORT_XSCALE;
+	port->port.flags = (port->port.flags | UPF_FIXED_PORT | UPF_FIXED_TYPE);
+	port->port.regshift = 2;
 
 	return ret;
 }
@@ -1073,16 +1080,16 @@ ce4100_serial_setup(struct serial_private *priv,
 static int
 pci_omegapci_setup(struct serial_private *priv,
 		      const struct pciserial_board *board,
-		      struct uart_port *port, int idx)
+		      struct uart_8250_port *port, int idx)
 {
 	return setup_port(priv, port, 2, idx * 8, 0);
 }
 
 static int skip_tx_en_setup(struct serial_private *priv,
 			const struct pciserial_board *board,
-			struct uart_port *port, int idx)
+			struct uart_8250_port *port, int idx)
 {
-	port->flags |= UPF_NO_TXEN_TEST;
+	port->port.flags |= UPF_NO_TXEN_TEST;
 	printk(KERN_DEBUG "serial8250: skipping TxEn test for device "
 			  "[%04x:%04x] subsystem [%04x:%04x]\n",
 			  priv->dev->vendor,
@@ -1131,11 +1138,11 @@ static unsigned int kt_serial_in(struct uart_port *p, int offset)
 
 static int kt_serial_setup(struct serial_private *priv,
 			   const struct pciserial_board *board,
-			   struct uart_port *port, int idx)
+			   struct uart_8250_port *port, int idx)
 {
-	port->flags |= UPF_BUG_THRE;
-	port->serial_in = kt_serial_in;
-	port->handle_break = kt_handle_break;
+	port->port.flags |= UPF_BUG_THRE;
+	port->port.serial_in = kt_serial_in;
+	port->port.handle_break = kt_handle_break;
 	return skip_tx_en_setup(priv, board, port, idx);
 }
 
@@ -1151,9 +1158,19 @@ static int pci_eg20t_init(struct pci_dev *dev)
 static int
 pci_xr17c154_setup(struct serial_private *priv,
 		  const struct pciserial_board *board,
-		  struct uart_port *port, int idx)
+		  struct uart_8250_port *port, int idx)
 {
-	port->flags |= UPF_EXAR_EFR;
+	port->port.flags |= UPF_EXAR_EFR;
+	return pci_default_setup(priv, board, port, idx);
+}
+
+static int
+pci_wch_ch353_setup(struct serial_private *priv,
+                    const struct pciserial_board *board,
+                    struct uart_8250_port *port, int idx)
+{
+	port->port.flags |= UPF_FIXED_TYPE;
+	port->port.type = PORT_16550A;
 	return pci_default_setup(priv, board, port, idx);
 }
 
@@ -1164,6 +1181,8 @@ pci_xr17c154_setup(struct serial_private *priv,
 #define PCI_SUBDEVICE_ID_OCTPRO422	0x0208
 #define PCI_SUBDEVICE_ID_POCTAL232	0x0308
 #define PCI_SUBDEVICE_ID_POCTAL422	0x0408
+#define PCI_SUBDEVICE_ID_SIIG_DUAL_00	0x2500
+#define PCI_SUBDEVICE_ID_SIIG_DUAL_30	0x2530
 #define PCI_VENDOR_ID_ADVANTECH		0x13fe
 #define PCI_DEVICE_ID_INTEL_CE4100_UART 0x2e66
 #define PCI_DEVICE_ID_ADVANTECH_PCI3620	0x3620
@@ -1187,6 +1206,13 @@ pci_xr17c154_setup(struct serial_private *priv,
 #define PCIE_DEVICE_ID_NEO_2_OX_IBM	0x00F6
 #define PCI_DEVICE_ID_PLX_CRONYX_OMEGA	0xc001
 #define PCI_DEVICE_ID_INTEL_PATSBURG_KT 0x1d3d
+#define PCI_VENDOR_ID_WCH		0x4348
+#define PCI_DEVICE_ID_WCH_CH353_4S	0x3453
+#define PCI_DEVICE_ID_WCH_CH353_2S1PF	0x5046
+#define PCI_DEVICE_ID_WCH_CH353_2S1P	0x7053
+#define PCI_VENDOR_ID_AGESTAR		0x5372
+#define PCI_DEVICE_ID_AGESTAR_9375	0x6872
+#define PCI_VENDOR_ID_ASIX		0x9710
 
 /* Unknown vendors/cards - this should not be in linux/pci_ids.h */
 #define PCI_SUBDEVICE_ID_UNKNOWN_0x1584	0x1584
@@ -1726,7 +1752,41 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
 		.subvendor	= PCI_ANY_ID,
 		.subdevice	= PCI_ANY_ID,
 		.setup		= pci_omegapci_setup,
-	 },
+	},
+	/* WCH CH353 2S1P card (16550 clone) */
+	{
+		.vendor         = PCI_VENDOR_ID_WCH,
+		.device         = PCI_DEVICE_ID_WCH_CH353_2S1P,
+		.subvendor      = PCI_ANY_ID,
+		.subdevice      = PCI_ANY_ID,
+		.setup          = pci_wch_ch353_setup,
+	},
+	/* WCH CH353 4S card (16550 clone) */
+	{
+		.vendor         = PCI_VENDOR_ID_WCH,
+		.device         = PCI_DEVICE_ID_WCH_CH353_4S,
+		.subvendor      = PCI_ANY_ID,
+		.subdevice      = PCI_ANY_ID,
+		.setup          = pci_wch_ch353_setup,
+	},
+	/* WCH CH353 2S1PF card (16550 clone) */
+	{
+		.vendor         = PCI_VENDOR_ID_WCH,
+		.device         = PCI_DEVICE_ID_WCH_CH353_2S1PF,
+		.subvendor      = PCI_ANY_ID,
+		.subdevice      = PCI_ANY_ID,
+		.setup          = pci_wch_ch353_setup,
+	},
+	/*
+	 * ASIX devices with FIFO bug
+	 */
+	{
+		.vendor		= PCI_VENDOR_ID_ASIX,
+		.device		= PCI_ANY_ID,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_asix_setup,
+	},
 	/*
 	 * Default "match everything" terminator entry
 	 */
@@ -1887,7 +1947,6 @@ enum pci_board_num_t {
 	pbn_panacom,
 	pbn_panacom2,
 	pbn_panacom4,
-	pbn_exsys_4055,
 	pbn_plx_romulus,
 	pbn_oxsemi,
 	pbn_oxsemi_1_4000000,
@@ -2393,13 +2452,6 @@ static struct pciserial_board pci_boards[] __devinitdata = {
 		.reg_shift	= 7,
 	},
 
-	[pbn_exsys_4055] = {
-		.flags		= FL_BASE2,
-		.num_ports	= 4,
-		.base_baud	= 115200,
-		.uart_offset	= 8,
-	},
-
 	/* I think this entry is broken - the first_offset looks wrong --rmk */
 	[pbn_plx_romulus] = {
 		.flags		= FL_BASE2,
@@ -2624,10 +2676,14 @@ static struct pciserial_board pci_boards[] __devinitdata = {
 	},
 };
 
-static const struct pci_device_id softmodem_blacklist[] = {
+static const struct pci_device_id blacklist[] = {
+	/* softmodems */
 	{ PCI_VDEVICE(AL, 0x5457), }, /* ALi Corporation M5457 AC'97 Modem */
 	{ PCI_VDEVICE(MOTOROLA, 0x3052), }, /* Motorola Si3052-based modem */
 	{ PCI_DEVICE(0x1543, 0x3052), }, /* Si3052-based modem, default IDs */
+
+	/* multi-io cards handled by parport_serial */
+	{ PCI_DEVICE(0x4348, 0x7053), }, /* WCH CH353 2S1P */
 };
 
 /*
@@ -2638,7 +2694,7 @@ static const struct pci_device_id softmodem_blacklist[] = {
 static int __devinit
 serial_pci_guess_board(struct pci_dev *dev, struct pciserial_board *board)
 {
-	const struct pci_device_id *blacklist;
+	const struct pci_device_id *bldev;
 	int num_iomem, num_port, first_port = -1, i;
 
 	/*
@@ -2655,13 +2711,13 @@ serial_pci_guess_board(struct pci_dev *dev, struct pciserial_board *board)
 
 	/*
 	 * Do not access blacklisted devices that are known not to
-	 * feature serial ports.
+	 * feature serial ports or are handled by other modules.
 	 */
-	for (blacklist = softmodem_blacklist;
-	     blacklist < softmodem_blacklist + ARRAY_SIZE(softmodem_blacklist);
-	     blacklist++) {
-		if (dev->vendor == blacklist->vendor &&
-		    dev->device == blacklist->device)
+	for (bldev = blacklist;
+	     bldev < blacklist + ARRAY_SIZE(blacklist);
+	     bldev++) {
+		if (dev->vendor == bldev->vendor &&
+		    dev->device == bldev->device)
 			return -ENODEV;
 	}
 
@@ -2728,7 +2784,7 @@ serial_pci_matches(const struct pciserial_board *board,
 struct serial_private *
 pciserial_init_ports(struct pci_dev *dev, const struct pciserial_board *board)
 {
-	struct uart_port serial_port;
+	struct uart_8250_port uart;
 	struct serial_private *priv;
 	struct pci_serial_quirk *quirk;
 	int rc, nr_ports, i;
@@ -2768,22 +2824,22 @@ pciserial_init_ports(struct pci_dev *dev, const struct pciserial_board *board)
 	priv->dev = dev;
 	priv->quirk = quirk;
 
-	memset(&serial_port, 0, sizeof(struct uart_port));
-	serial_port.flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ;
-	serial_port.uartclk = board->base_baud * 16;
-	serial_port.irq = get_pci_irq(dev, board);
-	serial_port.dev = &dev->dev;
+	memset(&uart, 0, sizeof(uart));
+	uart.port.flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ;
+	uart.port.uartclk = board->base_baud * 16;
+	uart.port.irq = get_pci_irq(dev, board);
+	uart.port.dev = &dev->dev;
 
 	for (i = 0; i < nr_ports; i++) {
-		if (quirk->setup(priv, board, &serial_port, i))
+		if (quirk->setup(priv, board, &uart, i))
 			break;
 
 #ifdef SERIAL_DEBUG_PCI
 		printk(KERN_DEBUG "Setup PCI port: port %lx, irq %d, type %d\n",
-		       serial_port.iobase, serial_port.irq, serial_port.iotype);
+		       uart.port.iobase, uart.port.irq, uart.port.iotype);
 #endif
 
-		priv->line[i] = serial8250_register_port(&serial_port);
+		priv->line[i] = serial8250_register_8250_port(&uart);
 		if (priv->line[i] < 0) {
 			printk(KERN_WARNING "Couldn't register serial port %s: %d\n", pci_name(dev), priv->line[i]);
 			break;
@@ -3193,7 +3249,7 @@ static struct pci_device_id serial_pci_tbl[] = {
 	{	PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050,
 		PCI_SUBVENDOR_ID_EXSYS,
 		PCI_SUBDEVICE_ID_EXSYS_4055, 0, 0,
-		pbn_exsys_4055 },
+		pbn_b2_4_115200 },
 	/*
 	 * Megawolf Romulus PCI Serial Card, from Mike Hudson
 	 * (Exoray@isys.ca)
@@ -3232,8 +3288,11 @@ static struct pci_device_id serial_pci_tbl[] = {
 		 * For now just used the hex ID 0x950a.
 		 */
 	{	PCI_VENDOR_ID_OXSEMI, 0x950a,
-		PCI_SUBVENDOR_ID_SIIG, PCI_SUBDEVICE_ID_SIIG_DUAL_SERIAL, 0, 0,
-		pbn_b0_2_115200 },
+		PCI_SUBVENDOR_ID_SIIG, PCI_SUBDEVICE_ID_SIIG_DUAL_00,
+		0, 0, pbn_b0_2_115200 },
+	{	PCI_VENDOR_ID_OXSEMI, 0x950a,
+		PCI_SUBVENDOR_ID_SIIG, PCI_SUBDEVICE_ID_SIIG_DUAL_30,
+		0, 0, pbn_b0_2_115200 },
 	{	PCI_VENDOR_ID_OXSEMI, 0x950a,
 		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 		pbn_b0_2_1130000 },
@@ -4179,6 +4238,25 @@ static struct pci_device_id serial_pci_tbl[] = {
 		pbn_omegapci },
 
 	/*
+	 * AgeStar as-prs2-009
+	 */
+	{	PCI_VENDOR_ID_AGESTAR, PCI_DEVICE_ID_AGESTAR_9375,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0, 0, pbn_b0_bt_2_115200 },
+
+	/*
+	 * WCH CH353 series devices: The 2S1P is handled by parport_serial
+	 * so not listed here.
+	 */
+	{	PCI_VENDOR_ID_WCH, PCI_DEVICE_ID_WCH_CH353_4S,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0, 0, pbn_b0_bt_4_115200 },
+
+	{	PCI_VENDOR_ID_WCH, PCI_DEVICE_ID_WCH_CH353_2S1PF,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0, 0, pbn_b0_bt_2_115200 },
+
+	/*
 	 * These entries match devices with class COMMUNICATION_SERIAL,
 	 * COMMUNICATION_MODEM or COMMUNICATION_MULTISERIAL
 	 */