15 files changed, 129 insertions, 63 deletions

diff --git a/include/linux/console.h b/include/linux/console.h
index dedb082fe50f..3b709da1786e 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -157,7 +157,12 @@ extern int is_console_locked(void);
 extern int braille_register_console(struct console *, int index,
                 char *console_options, char *braille_options);
 extern int braille_unregister_console(struct console *);
+#ifdef CONFIG_TTY
 extern void console_sysfs_notify(void);
+#else
+static inline void console_sysfs_notify(void)
+{ }
+#endif
 extern bool console_suspend_enabled;
 
 /* Suspend and resume console messages over PM events */
diff --git a/include/linux/kgdb.h b/include/linux/kgdb.h
index 4dff0c6ed58f..c6e091bf39a5 100644
--- a/include/linux/kgdb.h
+++ b/include/linux/kgdb.h
@@ -13,7 +13,6 @@
 #ifndef _KGDB_H_
 #define _KGDB_H_
 
-#include <linux/serial_8250.h>
 #include <linux/linkage.h>
 #include <linux/init.h>
 #include <linux/atomic.h>
diff --git a/include/linux/of_serial.h b/include/linux/of_serial.h
deleted file mode 100644
index 4a73ed80b4c0..000000000000
--- a/include/linux/of_serial.h
+++ /dev/null
@@ -1,17 +0,0 @@
-#ifndef __LINUX_OF_SERIAL_H
-#define __LINUX_OF_SERIAL_H
-
-/*
- * FIXME remove this file when tegra finishes conversion to open firmware,
- * expectation is that all quirks will then be self-contained in
- * drivers/tty/serial/of_serial.c.
- */
-#ifdef CONFIG_ARCH_TEGRA
-extern void tegra_serial_handle_break(struct uart_port *port);
-#else
-static inline void tegra_serial_handle_break(struct uart_port *port)
-{
-}
-#endif
-
-#endif /* __LINUX_OF_SERIAL */
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 6938ccfa42d5..31717bd287fd 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -1870,8 +1870,23 @@
 #define PCI_VENDOR_ID_QUATECH           0x135C
 #define PCI_DEVICE_ID_QUATECH_QSC100    0x0010
 #define PCI_DEVICE_ID_QUATECH_DSC100    0x0020
+#define PCI_DEVICE_ID_QUATECH_DSC200    0x0030
+#define PCI_DEVICE_ID_QUATECH_QSC200    0x0040
 #define PCI_DEVICE_ID_QUATECH_ESC100D   0x0050
 #define PCI_DEVICE_ID_QUATECH_ESC100M   0x0060
+#define PCI_DEVICE_ID_QUATECH_QSCP100   0x0120
+#define PCI_DEVICE_ID_QUATECH_DSCP100   0x0130
+#define PCI_DEVICE_ID_QUATECH_QSCP200   0x0140
+#define PCI_DEVICE_ID_QUATECH_DSCP200   0x0150
+#define PCI_DEVICE_ID_QUATECH_QSCLP100  0x0170
+#define PCI_DEVICE_ID_QUATECH_DSCLP100  0x0180
+#define PCI_DEVICE_ID_QUATECH_DSC100E   0x0181
+#define PCI_DEVICE_ID_QUATECH_SSCLP100  0x0190
+#define PCI_DEVICE_ID_QUATECH_QSCLP200  0x01A0
+#define PCI_DEVICE_ID_QUATECH_DSCLP200  0x01B0
+#define PCI_DEVICE_ID_QUATECH_DSC200E   0x01B1
+#define PCI_DEVICE_ID_QUATECH_SSCLP200  0x01C0
+#define PCI_DEVICE_ID_QUATECH_ESCLP100  0x01E0
 #define PCI_DEVICE_ID_QUATECH_SPPXP_100 0x0278
 
 #define PCI_VENDOR_ID_SEALEVEL          0x135e
diff --git a/include/linux/platform_data/s3c-hsotg.h b/include/linux/platform_data/s3c-hsotg.h
index 8b79e0967f9c..3f1cbf95ec3b 100644
--- a/include/linux/platform_data/s3c-hsotg.h
+++ b/include/linux/platform_data/s3c-hsotg.h
@@ -15,6 +15,8 @@
 #ifndef __LINUX_USB_S3C_HSOTG_H
 #define __LINUX_USB_S3C_HSOTG_H
 
+struct platform_device;
+
 enum s3c_hsotg_dmamode {
         S3C_HSOTG_DMA_NONE,     /* do not use DMA at-all */
         S3C_HSOTG_DMA_ONLY,     /* always use DMA */
diff --git a/include/linux/platform_data/sccnxp.h b/include/linux/platform_data/serial-sccnxp.h
index 7311ccd3217f..215574d1e81d 100644
--- a/include/linux/platform_data/sccnxp.h
+++ b/include/linux/platform_data/serial-sccnxp.h
@@ -11,8 +11,8 @@
  *  (at your option) any later version.
  */
 
-#ifndef __SCCNXP_H
-#define __SCCNXP_H
+#ifndef _PLATFORM_DATA_SERIAL_SCCNXP_H_
+#define _PLATFORM_DATA_SERIAL_SCCNXP_H_
 
 #define SCCNXP_MAX_UARTS        2
 
@@ -84,6 +84,8 @@ struct sccnxp_pdata {
         const u8                reg_shift;
         /* Modem control lines configuration */
         const u32               mctrl_cfg[SCCNXP_MAX_UARTS];
+        /* Timer value for polling mode (usecs) */
+        const unsigned int      poll_time_us;
         /* Called during startup */
         void (*init)(void);
         /* Called before finish */
diff --git a/include/linux/pps_kernel.h b/include/linux/pps_kernel.h
index 0cc45ae1afd5..7db3eb93a079 100644
--- a/include/linux/pps_kernel.h
+++ b/include/linux/pps_kernel.h
@@ -43,7 +43,7 @@ struct pps_source_info {
                         int event, void *data); /* PPS echo function */
 
         struct module *owner;
-        struct device *dev;
+        struct device *dev;             /* Parent device for device_create */
 };
 
 struct pps_event_time {
@@ -69,6 +69,7 @@ struct pps_device {
         wait_queue_head_t queue;                /* PPS event queue */
 
         unsigned int id;                        /* PPS source unique ID */
+        void const *lookup_cookie;              /* pps_lookup_dev only */
         struct cdev cdev;
         struct device *dev;
         struct fasync_struct *async_queue;      /* fasync method */
@@ -82,16 +83,26 @@ struct pps_device {
 extern struct device_attribute pps_attrs[];
 
 /*
+ * Internal functions.
+ *
+ * These are not actually part of the exported API, but this is a
+ * convenient header file to put them in.
+ */
+
+extern int pps_register_cdev(struct pps_device *pps);
+extern void pps_unregister_cdev(struct pps_device *pps);
+
+/*
  * Exported functions
  */
 
 extern struct pps_device *pps_register_source(
                 struct pps_source_info *info, int default_params);
 extern void pps_unregister_source(struct pps_device *pps);
-extern int pps_register_cdev(struct pps_device *pps);
-extern void pps_unregister_cdev(struct pps_device *pps);
 extern void pps_event(struct pps_device *pps,
                 struct pps_event_time *ts, int event, void *data);
+/* Look up a pps device by magic cookie */
+struct pps_device *pps_lookup_dev(void const *cookie);
 
 static inline void timespec_to_pps_ktime(struct pps_ktime *kt,
                 struct timespec ts)
diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h
index d0a1f2ca1c3f..8307f2f94d86 100644
--- a/include/linux/proc_fs.h
+++ b/include/linux/proc_fs.h
@@ -127,7 +127,12 @@ extern void pid_ns_release_proc(struct pid_namespace *ns);
  * proc_tty.c
  */
 struct tty_driver;
+#ifdef CONFIG_TTY
 extern void proc_tty_init(void);
+#else
+static inline void proc_tty_init(void)
+{ }
+#endif
 extern void proc_tty_register_driver(struct tty_driver *driver);
 extern void proc_tty_unregister_driver(struct tty_driver *driver);
 
diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h
index c490d20b3fb8..af47a8af6024 100644
--- a/include/linux/serial_8250.h
+++ b/include/linux/serial_8250.h
@@ -59,6 +59,8 @@ enum {
         PLAT8250_DEV_SM501,
 };
 
+struct uart_8250_dma;
+
 /*
  * This should be used by drivers which want to register
  * their own 8250 ports without registering their own
@@ -91,6 +93,8 @@ struct uart_8250_port {
 #define MSR_SAVE_FLAGS UART_MSR_ANY_DELTA
         unsigned char           msr_saved_flags;
 
+        struct uart_8250_dma    *dma;
+
         /* 8250 specific callbacks */
         int                     (*dl_read)(struct uart_8250_port *);
         void                    (*dl_write)(struct uart_8250_port *, int);
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index c6690a2a27fb..87d4bbc773fc 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -29,7 +29,6 @@
 #include <linux/tty.h>
 #include <linux/mutex.h>
 #include <linux/sysrq.h>
-#include <linux/pps_kernel.h>
 #include <uapi/linux/serial_core.h>
 
 struct uart_port;
@@ -37,8 +36,8 @@ struct serial_struct;
 struct device;
 
 /*
- * This structure describes all the operations that can be
- * done on the physical hardware.
+ * This structure describes all the operations that can be done on the
+ * physical hardware.  See Documentation/serial/driver for details.
  */
 struct uart_ops {
         unsigned int    (*tx_empty)(struct uart_port *);
@@ -65,7 +64,7 @@ struct uart_ops {
         /*
          * Return a string describing the type of the port
          */
-        const char *(*type)(struct uart_port *);
+        const char      *(*type)(struct uart_port *);
 
         /*
          * Release IO and memory resources used by the port.
@@ -83,7 +82,7 @@ struct uart_ops {
         int             (*ioctl)(struct uart_port *, unsigned int, unsigned long);
 #ifdef CONFIG_CONSOLE_POLL
         int             (*poll_init)(struct uart_port *);
-        void    (*poll_put_char)(struct uart_port *, unsigned char);
+        void            (*poll_put_char)(struct uart_port *, unsigned char);
         int             (*poll_get_char)(struct uart_port *);
 #endif
 };
@@ -134,9 +133,8 @@ struct uart_port {
 #define UPIO_HUB6               (1)
 #define UPIO_MEM                (2)
 #define UPIO_MEM32              (3)
-#define UPIO_AU                 (4)                     /* Au1x00 type IO */
+#define UPIO_AU                 (4)                     /* Au1x00 and RT288x type IO */
 #define UPIO_TSI                (5)                     /* Tsi108/109 type IO */
-#define UPIO_RM9000             (6)                     /* RM9000 type IO */
 
         unsigned int            read_status_mask;       /* driver specific */
         unsigned int            ignore_status_mask;     /* driver specific */
@@ -208,13 +206,25 @@ static inline void serial_port_out(struct uart_port *up, int offset, int value)
         up->serial_out(up, offset, value);
 }
 
+/**
+ * enum uart_pm_state - power states for UARTs
+ * @UART_PM_STATE_ON: UART is powered, up and operational
+ * @UART_PM_STATE_OFF: UART is powered off
+ * @UART_PM_STATE_UNDEFINED: sentinel
+ */
+enum uart_pm_state {
+        UART_PM_STATE_ON = 0,
+        UART_PM_STATE_OFF = 3, /* number taken from ACPI */
+        UART_PM_STATE_UNDEFINED,
+};
+
 /*
  * This is the state information which is persistent across opens.
  */
 struct uart_state {
         struct tty_port         port;
 
-        int                     pm_state;
+        enum uart_pm_state      pm_state;
         struct circ_buf         xmit;
 
         struct uart_port        *uart_port;
diff --git a/include/linux/sunserialcore.h b/include/linux/sunserialcore.h
index 68e7430bb0fe..dbe4d7fca1b8 100644
--- a/include/linux/sunserialcore.h
+++ b/include/linux/sunserialcore.h
@@ -13,6 +13,10 @@
 #ifndef _SERIAL_SUN_H
 #define _SERIAL_SUN_H
 
+#include <linux/device.h>
+#include <linux/serial_core.h>
+#include <linux/console.h>
+
 /* Serial keyboard defines for L1-A processing... */
 #define SUNKBD_RESET            0xff
 #define SUNKBD_L1               0x01
diff --git a/include/linux/tty.h b/include/linux/tty.h
index 8db1b569c37a..c75d886b0307 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -202,7 +202,8 @@ struct tty_port {
         unsigned long           iflags;         /* TTYP_ internal flags */
 #define TTYP_FLUSHING                   1  /* Flushing to ldisc in progress */
 #define TTYP_FLUSHPENDING               2  /* Queued buffer flush pending */
-        unsigned char           console:1;      /* port is a console */
+        unsigned char           console:1,      /* port is a console */
+                                low_latency:1;  /* direct buffer flush */
         struct mutex            mutex;          /* Locking */
         struct mutex            buf_mutex;      /* Buffer alloc lock */
         unsigned char           *xmit_buf;      /* Optional buffer */
@@ -254,7 +255,7 @@ struct tty_struct {
         int count;
         struct winsize winsize;         /* termios mutex */
         unsigned char stopped:1, hw_stopped:1, flow_stopped:1, packet:1;
-        unsigned char low_latency:1, warned:1;
+        unsigned char warned:1;
         unsigned char ctrl_status;      /* ctrl_lock */
         unsigned int receive_room;      /* Bytes free for queue */
 
@@ -317,11 +318,43 @@ struct tty_file_private {
 
 #define TTY_WRITE_FLUSH(tty) tty_write_flush((tty))
 
+#ifdef CONFIG_TTY
+extern void console_init(void);
+extern void tty_kref_put(struct tty_struct *tty);
+extern struct pid *tty_get_pgrp(struct tty_struct *tty);
+extern void tty_vhangup_self(void);
+extern void disassociate_ctty(int priv);
+extern dev_t tty_devnum(struct tty_struct *tty);
+extern void proc_clear_tty(struct task_struct *p);
+extern struct tty_struct *get_current_tty(void);
+/* tty_io.c */
+extern int __init tty_init(void);
+#else
+static inline void console_init(void)
+{ }
+static inline void tty_kref_put(struct tty_struct *tty)
+{ }
+static inline struct pid *tty_get_pgrp(struct tty_struct *tty)
+{ return NULL; }
+static inline void tty_vhangup_self(void)
+{ }
+static inline void disassociate_ctty(int priv)
+{ }
+static inline dev_t tty_devnum(struct tty_struct *tty)
+{ return 0; }
+static inline void proc_clear_tty(struct task_struct *p)
+{ }
+static inline struct tty_struct *get_current_tty(void)
+{ return NULL; }
+/* tty_io.c */
+static inline int __init tty_init(void)
+{ return 0; }
+#endif
+
 extern void tty_write_flush(struct tty_struct *);
 
 extern struct ktermios tty_std_termios;
 
-extern void console_init(void);
 extern int vcs_init(void);
 
 extern struct class *tty_class;
@@ -341,7 +374,6 @@ static inline struct tty_struct *tty_kref_get(struct tty_struct *tty)
                 kref_get(&tty->kref);
         return tty;
 }
-extern void tty_kref_put(struct tty_struct *tty);
 
 extern int tty_paranoia_check(struct tty_struct *tty, struct inode *inode,
                               const char *routine);
@@ -373,20 +405,16 @@ extern void tty_driver_remove_tty(struct tty_driver *driver,
                                   struct tty_struct *tty);
 extern void tty_free_termios(struct tty_struct *tty);
 extern int is_current_pgrp_orphaned(void);
-extern struct pid *tty_get_pgrp(struct tty_struct *tty);
 extern int is_ignored(int sig);
 extern int tty_signal(int sig, struct tty_struct *tty);
 extern void tty_hangup(struct tty_struct *tty);
 extern void tty_vhangup(struct tty_struct *tty);
 extern void tty_vhangup_locked(struct tty_struct *tty);
-extern void tty_vhangup_self(void);
 extern void tty_unhangup(struct file *filp);
 extern int tty_hung_up_p(struct file *filp);
 extern void do_SAK(struct tty_struct *tty);
 extern void __do_SAK(struct tty_struct *tty);
-extern void disassociate_ctty(int priv);
 extern void no_tty(void);
-extern void tty_flip_buffer_push(struct tty_struct *tty);
 extern void tty_flush_to_ldisc(struct tty_struct *tty);
 extern void tty_buffer_free_all(struct tty_port *port);
 extern void tty_buffer_flush(struct tty_struct *tty);
@@ -415,9 +443,6 @@ extern long tty_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
 extern int tty_mode_ioctl(struct tty_struct *tty, struct file *file,
                         unsigned int cmd, unsigned long arg);
 extern int tty_perform_flush(struct tty_struct *tty, unsigned long arg);
-extern dev_t tty_devnum(struct tty_struct *tty);
-extern void proc_clear_tty(struct task_struct *p);
-extern struct tty_struct *get_current_tty(void);
 extern void tty_default_fops(struct file_operations *fops);
 extern struct tty_struct *alloc_tty_struct(void);
 extern int tty_alloc_file(struct file *file);
@@ -543,9 +568,6 @@ static inline int tty_audit_push_task(struct task_struct *tsk,
 }
 #endif
 
-/* tty_io.c */
-extern int __init tty_init(void);
-
 /* tty_ioctl.c */
 extern int n_tty_ioctl_helper(struct tty_struct *tty, struct file *file,
                        unsigned int cmd, unsigned long arg);
diff --git a/include/linux/tty_driver.h b/include/linux/tty_driver.h
index dd976cfb6131..756a60989294 100644
--- a/include/linux/tty_driver.h
+++ b/include/linux/tty_driver.h
@@ -40,6 +40,7 @@
  * void (*close)(struct tty_struct * tty, struct file * filp);
  *
  *      This routine is called when a particular tty device is closed.
+ *      Note: called even if the corresponding open() failed.
  *
  *      Required method.
  *
diff --git a/include/linux/tty_flip.h b/include/linux/tty_flip.h
index 2002344ed36a..e0f252633b47 100644
--- a/include/linux/tty_flip.h
+++ b/include/linux/tty_flip.h
@@ -1,28 +1,34 @@
 #ifndef _LINUX_TTY_FLIP_H
 #define _LINUX_TTY_FLIP_H
 
-extern int tty_buffer_request_room(struct tty_struct *tty, size_t size);
-extern int tty_insert_flip_string_flags(struct tty_struct *tty, const unsigned char *chars, const char *flags, size_t size);
-extern int tty_insert_flip_string_fixed_flag(struct tty_struct *tty, const unsigned char *chars, char flag, size_t size);
-extern int tty_prepare_flip_string(struct tty_struct *tty, unsigned char **chars, size_t size);
-extern int tty_prepare_flip_string_flags(struct tty_struct *tty, unsigned char **chars, char **flags, size_t size);
-void tty_schedule_flip(struct tty_struct *tty);
+extern int tty_buffer_request_room(struct tty_port *port, size_t size);
+extern int tty_insert_flip_string_flags(struct tty_port *port,
+                const unsigned char *chars, const char *flags, size_t size);
+extern int tty_insert_flip_string_fixed_flag(struct tty_port *port,
+                const unsigned char *chars, char flag, size_t size);
+extern int tty_prepare_flip_string(struct tty_port *port,
+                unsigned char **chars, size_t size);
+extern int tty_prepare_flip_string_flags(struct tty_port *port,
+                unsigned char **chars, char **flags, size_t size);
+extern void tty_flip_buffer_push(struct tty_port *port);
+void tty_schedule_flip(struct tty_port *port);
 
-static inline int tty_insert_flip_char(struct tty_struct *tty,
+static inline int tty_insert_flip_char(struct tty_port *port,
                                         unsigned char ch, char flag)
 {
-        struct tty_buffer *tb = tty->port->buf.tail;
+        struct tty_buffer *tb = port->buf.tail;
         if (tb && tb->used < tb->size) {
                 tb->flag_buf_ptr[tb->used] = flag;
                 tb->char_buf_ptr[tb->used++] = ch;
                 return 1;
         }
-        return tty_insert_flip_string_flags(tty, &ch, &flag, 1);
+        return tty_insert_flip_string_flags(port, &ch, &flag, 1);
 }
 
-static inline int tty_insert_flip_string(struct tty_struct *tty, const unsigned char *chars, size_t size)
+static inline int tty_insert_flip_string(struct tty_port *port,
+                const unsigned char *chars, size_t size)
 {
-        return tty_insert_flip_string_fixed_flag(tty, chars, TTY_NORMAL, size);
+        return tty_insert_flip_string_fixed_flag(port, chars, TTY_NORMAL, size);
 }
 
 #endif /* _LINUX_TTY_FLIP_H */
diff --git a/include/linux/tty_ldisc.h b/include/linux/tty_ldisc.h
index fb79dd8d1537..455a0d7bf220 100644
--- a/include/linux/tty_ldisc.h
+++ b/include/linux/tty_ldisc.h
@@ -100,16 +100,14 @@
  *      seek to perform this action quickly but should wait until
  *      any pending driver I/O is completed.
  *
- * void (*dcd_change)(struct tty_struct *tty, unsigned int status,
- *                      struct pps_event_time *ts)
+ * void (*dcd_change)(struct tty_struct *tty, unsigned int status)
  *
- *      Tells the discipline that the DCD pin has changed its status and
- *      the relative timestamp. Pointer ts cannot be NULL.
+ *      Tells the discipline that the DCD pin has changed its status.
+ *      Used exclusively by the N_PPS (Pulse-Per-Second) line discipline.
  */
 
 #include <linux/fs.h>
 #include <linux/wait.h>
-#include <linux/pps_kernel.h>
 #include <linux/wait.h>
 
 struct tty_ldisc_ops {
@@ -144,8 +142,7 @@ struct tty_ldisc_ops {
         void    (*receive_buf)(struct tty_struct *, const unsigned char *cp,
                                char *fp, int count);
         void    (*write_wakeup)(struct tty_struct *);
-        void    (*dcd_change)(struct tty_struct *, unsigned int,
-                                struct pps_event_time *);
+        void    (*dcd_change)(struct tty_struct *, unsigned int);
 
         struct  module *owner;