ARM: arm-soc: Merge branch 'next/clk' into next/pm

Merge together a couple of the smaller pm/clock branches into one.

Signed-off-by: Olof Johansson <olof@lixom.net>

10 files changed, 396 insertions, 81 deletions

diff --git a/include/linux/devpts_fs.h b/include/linux/devpts_fs.h
index 5ce0e5fd712e..251a2090a554 100644
--- a/include/linux/devpts_fs.h
+++ b/include/linux/devpts_fs.h
@@ -20,28 +20,28 @@
 int devpts_new_index(struct inode *ptmx_inode);
 void devpts_kill_index(struct inode *ptmx_inode, int idx);
 /* mknod in devpts */
-int devpts_pty_new(struct inode *ptmx_inode, struct tty_struct *tty);
-/* get tty structure */
-struct tty_struct *devpts_get_tty(struct inode *pts_inode, int number);
+struct inode *devpts_pty_new(struct inode *ptmx_inode, dev_t device, int index,
+                void *priv);
+/* get private structure */
+void *devpts_get_priv(struct inode *pts_inode);
 /* unlink */
-void devpts_pty_kill(struct tty_struct *tty);
+void devpts_pty_kill(struct inode *inode);
 
 #else
 
 /* Dummy stubs in the no-pty case */
 static inline int devpts_new_index(struct inode *ptmx_inode) { return -EINVAL; }
 static inline void devpts_kill_index(struct inode *ptmx_inode, int idx) { }
-static inline int devpts_pty_new(struct inode *ptmx_inode,
-                                struct tty_struct *tty)
+static inline struct inode *devpts_pty_new(struct inode *ptmx_inode,
+                dev_t device, int index, void *priv)
 {
-        return -EINVAL;
+        return ERR_PTR(-EINVAL);
 }
-static inline struct tty_struct *devpts_get_tty(struct inode *pts_inode,
-                int number)
+static inline void *devpts_get_priv(struct inode *pts_inode)
 {
         return NULL;
 }
-static inline void devpts_pty_kill(struct tty_struct *tty) { }
+static inline void devpts_pty_kill(struct inode *inode) { }
 
 #endif
 
diff --git a/include/linux/mfd/menelaus.h b/include/linux/mfd/menelaus.h
new file mode 100644
index 000000000000..f097e89134cb
--- /dev/null
+++ b/include/linux/mfd/menelaus.h
@@ -0,0 +1,47 @@
+/*
+ * Functions to access Menelaus power management chip
+ */
+
+#ifndef __ASM_ARCH_MENELAUS_H
+#define __ASM_ARCH_MENELAUS_H
+
+struct device;
+
+struct menelaus_platform_data {
+        int (* late_init)(struct device *dev);
+};
+
+extern int menelaus_register_mmc_callback(void (*callback)(void *data, u8 card_mask),
+                                          void *data);
+extern void menelaus_unregister_mmc_callback(void);
+extern int menelaus_set_mmc_opendrain(int slot, int enable);
+extern int menelaus_set_mmc_slot(int slot, int enable, int power, int cd_on);
+
+extern int menelaus_set_vmem(unsigned int mV);
+extern int menelaus_set_vio(unsigned int mV);
+extern int menelaus_set_vmmc(unsigned int mV);
+extern int menelaus_set_vaux(unsigned int mV);
+extern int menelaus_set_vdcdc(int dcdc, unsigned int mV);
+extern int menelaus_set_slot_sel(int enable);
+extern int menelaus_get_slot_pin_states(void);
+extern int menelaus_set_vcore_sw(unsigned int mV);
+extern int menelaus_set_vcore_hw(unsigned int roof_mV, unsigned int floor_mV);
+
+#define EN_VPLL_SLEEP   (1 << 7)
+#define EN_VMMC_SLEEP   (1 << 6)
+#define EN_VAUX_SLEEP   (1 << 5)
+#define EN_VIO_SLEEP    (1 << 4)
+#define EN_VMEM_SLEEP   (1 << 3)
+#define EN_DC3_SLEEP    (1 << 2)
+#define EN_DC2_SLEEP    (1 << 1)
+#define EN_VC_SLEEP     (1 << 0)
+
+extern int menelaus_set_regulator_sleep(int enable, u32 val);
+
+#if defined(CONFIG_ARCH_OMAP2) && defined(CONFIG_MENELAUS)
+#define omap_has_menelaus()     1
+#else
+#define omap_has_menelaus()     0
+#endif
+
+#endif
diff --git a/include/linux/platform_data/leds-omap.h b/include/linux/platform_data/leds-omap.h
new file mode 100644
index 000000000000..56c9b2a0ada5
--- /dev/null
+++ b/include/linux/platform_data/leds-omap.h
@@ -0,0 +1,22 @@
+/*
+ *  Copyright (C) 2006 Samsung Electronics
+ *  Kyungmin Park <kyungmin.park@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef ASMARM_ARCH_LED_H
+#define ASMARM_ARCH_LED_H
+
+struct omap_led_config {
+        struct led_classdev     cdev;
+        s16                     gpio;
+};
+
+struct omap_led_platform_data {
+        s16                     nr_leds;
+        struct omap_led_config  *leds;
+};
+
+#endif
diff --git a/include/linux/platform_data/mmc-omap.h b/include/linux/platform_data/mmc-omap.h
new file mode 100644
index 000000000000..2bf6ea82ff94
--- /dev/null
+++ b/include/linux/platform_data/mmc-omap.h
@@ -0,0 +1,150 @@
+/*
+ * MMC definitions for OMAP2
+ *
+ * Copyright (C) 2006 Nokia Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#define OMAP_MMC_MAX_SLOTS      2
+
+/*
+ * struct omap_mmc_dev_attr.flags possibilities
+ *
+ * OMAP_HSMMC_SUPPORTS_DUAL_VOLT: Some HSMMC controller instances can
+ *    operate with either 1.8Vdc or 3.0Vdc card voltages; this flag
+ *    should be set if this is the case.  See for example Section 22.5.3
+ *    "MMC/SD/SDIO1 Bus Voltage Selection" of the OMAP34xx Multimedia
+ *    Device Silicon Revision 3.1.x Revision ZR (July 2011) (SWPU223R).
+ *
+ * OMAP_HSMMC_BROKEN_MULTIBLOCK_READ: Multiple-block read transfers
+ *    don't work correctly on some MMC controller instances on some
+ *    OMAP3 SoCs; this flag should be set if this is the case.  See
+ *    for example Advisory 2.1.1.128 "MMC: Multiple Block Read
+ *    Operation Issue" in _OMAP3530/3525/3515/3503 Silicon Errata_
+ *    Revision F (October 2010) (SPRZ278F).
+ */
+#define OMAP_HSMMC_SUPPORTS_DUAL_VOLT           BIT(0)
+#define OMAP_HSMMC_BROKEN_MULTIBLOCK_READ       BIT(1)
+
+struct mmc_card;
+
+struct omap_mmc_dev_attr {
+        u8 flags;
+};
+
+struct omap_mmc_platform_data {
+        /* back-link to device */
+        struct device *dev;
+
+        /* number of slots per controller */
+        unsigned nr_slots:2;
+
+        /* set if your board has components or wiring that limits the
+         * maximum frequency on the MMC bus */
+        unsigned int max_freq;
+
+        /* switch the bus to a new slot */
+        int (*switch_slot)(struct device *dev, int slot);
+        /* initialize board-specific MMC functionality, can be NULL if
+         * not supported */
+        int (*init)(struct device *dev);
+        void (*cleanup)(struct device *dev);
+        void (*shutdown)(struct device *dev);
+
+        /* To handle board related suspend/resume functionality for MMC */
+        int (*suspend)(struct device *dev, int slot);
+        int (*resume)(struct device *dev, int slot);
+
+        /* Return context loss count due to PM states changing */
+        int (*get_context_loss_count)(struct device *dev);
+
+        /* Integrating attributes from the omap_hwmod layer */
+        u8 controller_flags;
+
+        /* Register offset deviation */
+        u16 reg_offset;
+
+        struct omap_mmc_slot_data {
+
+                /*
+                 * 4/8 wires and any additional host capabilities
+                 * need to OR'd all capabilities (ref. linux/mmc/host.h)
+                 */
+                u8  wires;      /* Used for the MMC driver on omap1 and 2420 */
+                u32 caps;       /* Used for the MMC driver on 2430 and later */
+                u32 pm_caps;    /* PM capabilities of the mmc */
+
+                /*
+                 * nomux means "standard" muxing is wrong on this board, and
+                 * that board-specific code handled it before common init logic.
+                 */
+                unsigned nomux:1;
+
+                /* switch pin can be for card detect (default) or card cover */
+                unsigned cover:1;
+
+                /* use the internal clock */
+                unsigned internal_clock:1;
+
+                /* nonremovable e.g. eMMC */
+                unsigned nonremovable:1;
+
+                /* Try to sleep or power off when possible */
+                unsigned power_saving:1;
+
+                /* If using power_saving and the MMC power is not to go off */
+                unsigned no_off:1;
+
+                /* eMMC does not handle power off when not in sleep state */
+                unsigned no_regulator_off_init:1;
+
+                /* Regulator off remapped to sleep */
+                unsigned vcc_aux_disable_is_sleep:1;
+
+                /* we can put the features above into this variable */
+#define HSMMC_HAS_PBIAS         (1 << 0)
+#define HSMMC_HAS_UPDATED_RESET (1 << 1)
+#define MMC_OMAP7XX             (1 << 2)
+#define MMC_OMAP15XX            (1 << 3)
+#define MMC_OMAP16XX            (1 << 4)
+                unsigned features;
+
+                int switch_pin;                 /* gpio (card detect) */
+                int gpio_wp;                    /* gpio (write protect) */
+
+                int (*set_bus_mode)(struct device *dev, int slot, int bus_mode);
+                int (*set_power)(struct device *dev, int slot,
+                                 int power_on, int vdd);
+                int (*get_ro)(struct device *dev, int slot);
+                void (*remux)(struct device *dev, int slot, int power_on);
+                /* Call back before enabling / disabling regulators */
+                void (*before_set_reg)(struct device *dev, int slot,
+                                       int power_on, int vdd);
+                /* Call back after enabling / disabling regulators */
+                void (*after_set_reg)(struct device *dev, int slot,
+                                      int power_on, int vdd);
+                /* if we have special card, init it using this callback */
+                void (*init_card)(struct mmc_card *card);
+
+                /* return MMC cover switch state, can be NULL if not supported.
+                 *
+                 * possible return values:
+                 *   0 - closed
+                 *   1 - open
+                 */
+                int (*get_cover_state)(struct device *dev, int slot);
+
+                const char *name;
+                u32 ocr_mask;
+
+                /* Card detection IRQs */
+                int card_detect_irq;
+                int (*card_detect)(struct device *dev, int slot);
+
+                unsigned int ban_openended:1;
+
+        } slots[OMAP_MMC_MAX_SLOTS];
+};
diff --git a/include/linux/platform_data/mtd-nand-omap2.h b/include/linux/platform_data/mtd-nand-omap2.h
index 1a68c1e5fe53..24d32ca34bef 100644
--- a/include/linux/platform_data/mtd-nand-omap2.h
+++ b/include/linux/platform_data/mtd-nand-omap2.h
@@ -8,9 +8,13 @@
  * published by the Free Software Foundation.
  */
 
-#include <plat/gpmc.h>
+#ifndef _MTD_NAND_OMAP2_H
+#define _MTD_NAND_OMAP2_H
+
 #include <linux/mtd/partitions.h>
 
+#define GPMC_BCH_NUM_REMAINDER  8
+
 enum nand_io {
         NAND_OMAP_PREFETCH_POLLED = 0,  /* prefetch polled mode, default */
         NAND_OMAP_POLLED,               /* polled mode, without prefetch */
@@ -18,10 +22,38 @@ enum nand_io {
         NAND_OMAP_PREFETCH_IRQ          /* prefetch enabled irq mode */
 };
 
+enum omap_ecc {
+                /* 1-bit ecc: stored at end of spare area */
+        OMAP_ECC_HAMMING_CODE_DEFAULT = 0, /* Default, s/w method */
+        OMAP_ECC_HAMMING_CODE_HW, /* gpmc to detect the error */
+                /* 1-bit ecc: stored at beginning of spare area as romcode */
+        OMAP_ECC_HAMMING_CODE_HW_ROMCODE, /* gpmc method & romcode layout */
+        OMAP_ECC_BCH4_CODE_HW, /* 4-bit BCH ecc code */
+        OMAP_ECC_BCH8_CODE_HW, /* 8-bit BCH ecc code */
+};
+
+struct gpmc_nand_regs {
+        void __iomem    *gpmc_status;
+        void __iomem    *gpmc_nand_command;
+        void __iomem    *gpmc_nand_address;
+        void __iomem    *gpmc_nand_data;
+        void __iomem    *gpmc_prefetch_config1;
+        void __iomem    *gpmc_prefetch_config2;
+        void __iomem    *gpmc_prefetch_control;
+        void __iomem    *gpmc_prefetch_status;
+        void __iomem    *gpmc_ecc_config;
+        void __iomem    *gpmc_ecc_control;
+        void __iomem    *gpmc_ecc_size_config;
+        void __iomem    *gpmc_ecc1_result;
+        void __iomem    *gpmc_bch_result0[GPMC_BCH_NUM_REMAINDER];
+        void __iomem    *gpmc_bch_result1[GPMC_BCH_NUM_REMAINDER];
+        void __iomem    *gpmc_bch_result2[GPMC_BCH_NUM_REMAINDER];
+        void __iomem    *gpmc_bch_result3[GPMC_BCH_NUM_REMAINDER];
+};
+
 struct omap_nand_platform_data {
         int                     cs;
         struct mtd_partition    *parts;
-        struct gpmc_timings     *gpmc_t;
         int                     nr_parts;
         bool                    dev_ready;
         enum nand_io            xfer_type;
@@ -30,14 +62,4 @@ struct omap_nand_platform_data {
         struct gpmc_nand_regs   reg;
 };
 
-/* minimum size for IO mapping */
-#define NAND_IO_SIZE    4
-
-#if defined(CONFIG_MTD_NAND_OMAP2) || defined(CONFIG_MTD_NAND_OMAP2_MODULE)
-extern int gpmc_nand_init(struct omap_nand_platform_data *d);
-#else
-static inline int gpmc_nand_init(struct omap_nand_platform_data *d)
-{
-        return 0;
-}
 #endif
diff --git a/include/linux/platform_data/mtd-onenand-omap2.h b/include/linux/platform_data/mtd-onenand-omap2.h
index 2858667d2e4f..685af7e8b120 100644
--- a/include/linux/platform_data/mtd-onenand-omap2.h
+++ b/include/linux/platform_data/mtd-onenand-omap2.h
@@ -9,17 +9,15 @@
  * published by the Free Software Foundation.
  */
 
+#ifndef __MTD_ONENAND_OMAP2_H
+#define __MTD_ONENAND_OMAP2_H
+
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
 
 #define ONENAND_SYNC_READ       (1 << 0)
 #define ONENAND_SYNC_READWRITE  (1 << 1)
-
-struct onenand_freq_info {
-        u16                     maf_id;
-        u16                     dev_id;
-        u16                     ver_id;
-};
+#define ONENAND_IN_OMAP34XX     (1 << 2)
 
 struct omap_onenand_platform_data {
         int                     cs;
@@ -27,27 +25,9 @@ struct omap_onenand_platform_data {
         struct mtd_partition    *parts;
         int                     nr_parts;
         int                     (*onenand_setup)(void __iomem *, int *freq_ptr);
-        int             (*get_freq)(const struct onenand_freq_info *freq_info,
-                                    bool *clk_dep);
         int                     dma_channel;
         u8                      flags;
         u8                      regulator_can_sleep;
         u8                      skip_initial_unlocking;
 };
-
-#define ONENAND_MAX_PARTITIONS 8
-
-#if defined(CONFIG_MTD_ONENAND_OMAP2) || \
-        defined(CONFIG_MTD_ONENAND_OMAP2_MODULE)
-
-extern void gpmc_onenand_init(struct omap_onenand_platform_data *d);
-
-#else
-
-#define board_onenand_data      NULL
-
-static inline void gpmc_onenand_init(struct omap_onenand_platform_data *d)
-{
-}
-
 #endif
diff --git a/include/linux/platform_data/omap-wd-timer.h b/include/linux/platform_data/omap-wd-timer.h
new file mode 100644
index 000000000000..d75f5f802d98
--- /dev/null
+++ b/include/linux/platform_data/omap-wd-timer.h
@@ -0,0 +1,38 @@
+/*
+ * OMAP2+ WDTIMER-specific function prototypes
+ *
+ * Copyright (C) 2012 Texas Instruments, Inc.
+ * Paul Walmsley
+ *
+ * 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 __LINUX_PLATFORM_DATA_OMAP_WD_TIMER_H
+#define __LINUX_PLATFORM_DATA_OMAP_WD_TIMER_H
+
+#include <linux/types.h>
+
+/*
+ * Standardized OMAP reset source bits
+ *
+ * This is a subset of the ones listed in arch/arm/mach-omap2/prm.h
+ * and are the only ones needed in the watchdog driver.
+ */
+#define OMAP_MPU_WD_RST_SRC_ID_SHIFT                            3
+
+/**
+ * struct omap_wd_timer_platform_data - WDTIMER integration to the host SoC
+ * @read_reset_sources - fn ptr for the SoC to indicate the last reset cause
+ *
+ * The function pointed to by @read_reset_sources must return its data
+ * in a standard format - search for RST_SRC_ID_SHIFT in
+ * arch/arm/mach-omap2
+ */
+struct omap_wd_timer_platform_data {
+        u32 (*read_reset_sources)(void);
+};
+
+#endif
diff --git a/include/linux/platform_data/usb-omap.h b/include/linux/platform_data/usb-omap.h
new file mode 100644
index 000000000000..8570bcfe6311
--- /dev/null
+++ b/include/linux/platform_data/usb-omap.h
@@ -0,0 +1,80 @@
+/*
+ * usb-omap.h - Platform data for the various OMAP USB IPs
+ *
+ * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com
+ *
+ * This software is distributed under the terms of the GNU General Public
+ * License ("GPL") version 2, as published by the Free Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#define OMAP3_HS_USB_PORTS      3
+
+enum usbhs_omap_port_mode {
+        OMAP_USBHS_PORT_MODE_UNUSED,
+        OMAP_EHCI_PORT_MODE_PHY,
+        OMAP_EHCI_PORT_MODE_TLL,
+        OMAP_EHCI_PORT_MODE_HSIC,
+        OMAP_OHCI_PORT_MODE_PHY_6PIN_DATSE0,
+        OMAP_OHCI_PORT_MODE_PHY_6PIN_DPDM,
+        OMAP_OHCI_PORT_MODE_PHY_3PIN_DATSE0,
+        OMAP_OHCI_PORT_MODE_PHY_4PIN_DPDM,
+        OMAP_OHCI_PORT_MODE_TLL_6PIN_DATSE0,
+        OMAP_OHCI_PORT_MODE_TLL_6PIN_DPDM,
+        OMAP_OHCI_PORT_MODE_TLL_3PIN_DATSE0,
+        OMAP_OHCI_PORT_MODE_TLL_4PIN_DPDM,
+        OMAP_OHCI_PORT_MODE_TLL_2PIN_DATSE0,
+        OMAP_OHCI_PORT_MODE_TLL_2PIN_DPDM
+};
+
+struct usbtll_omap_platform_data {
+        enum usbhs_omap_port_mode               port_mode[OMAP3_HS_USB_PORTS];
+};
+
+struct ehci_hcd_omap_platform_data {
+        enum usbhs_omap_port_mode       port_mode[OMAP3_HS_USB_PORTS];
+        int                             reset_gpio_port[OMAP3_HS_USB_PORTS];
+        struct regulator                *regulator[OMAP3_HS_USB_PORTS];
+        unsigned                        phy_reset:1;
+};
+
+struct ohci_hcd_omap_platform_data {
+        enum usbhs_omap_port_mode       port_mode[OMAP3_HS_USB_PORTS];
+        unsigned                        es2_compatibility:1;
+};
+
+struct usbhs_omap_platform_data {
+        enum usbhs_omap_port_mode               port_mode[OMAP3_HS_USB_PORTS];
+
+        struct ehci_hcd_omap_platform_data      *ehci_data;
+        struct ohci_hcd_omap_platform_data      *ohci_data;
+};
+
+/*-------------------------------------------------------------------------*/
+
+struct omap_musb_board_data {
+        u8      interface_type;
+        u8      mode;
+        u16     power;
+        unsigned extvbus:1;
+        void    (*set_phy_power)(u8 on);
+        void    (*clear_irq)(void);
+        void    (*set_mode)(u8 mode);
+        void    (*reset)(void);
+};
+
+enum musb_interface {
+        MUSB_INTERFACE_ULPI,
+        MUSB_INTERFACE_UTMI
+};
diff --git a/include/linux/tty.h b/include/linux/tty.h
index f0b4eb47297c..d7ff88fb8967 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -188,7 +188,9 @@ struct tty_port_operations {
 };
         
 struct tty_port {
+        struct tty_bufhead      buf;            /* Locked internally */
         struct tty_struct       *tty;           /* Back pointer */
+        struct tty_struct       *itty;          /* internal back ptr */
         const struct tty_port_operations *ops;  /* Port operations */
         spinlock_t              lock;           /* Lock protecting tty field */
         int                     blocked_open;   /* Waiting to open */
@@ -197,6 +199,9 @@ struct tty_port {
         wait_queue_head_t       close_wait;     /* Close waiters */
         wait_queue_head_t       delta_msr_wait; /* Modem status change */
         unsigned long           flags;          /* TTY flags ASY_*/
+        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 */
         struct mutex            mutex;          /* Locking */
         struct mutex            buf_mutex;      /* Buffer alloc lock */
@@ -235,6 +240,7 @@ struct tty_struct {
         struct mutex ldisc_mutex;
         struct tty_ldisc *ldisc;
 
+        struct mutex atomic_write_lock;
         struct mutex legacy_mutex;
         struct mutex termios_mutex;
         spinlock_t ctrl_lock;
@@ -254,7 +260,6 @@ struct tty_struct {
 
         struct tty_struct *link;
         struct fasync_struct *fasync;
-        struct tty_bufhead buf;         /* Locked internally */
         int alt_speed;          /* For magic substitution of 38400 bps */
         wait_queue_head_t write_wait;
         wait_queue_head_t read_wait;
@@ -265,37 +270,10 @@ struct tty_struct {
 
 #define N_TTY_BUF_SIZE 4096
 
-        /*
-         * The following is data for the N_TTY line discipline.  For
-         * historical reasons, this is included in the tty structure.
-         * Mostly locked by the BKL.
-         */
-        unsigned int column;
-        unsigned char lnext:1, erasing:1, raw:1, real_raw:1, icanon:1;
         unsigned char closing:1;
-        unsigned char echo_overrun:1;
         unsigned short minimum_to_wake;
-        unsigned long overrun_time;
-        int num_overrun;
-        unsigned long process_char_map[256/(8*sizeof(unsigned long))];
-        char *read_buf;
-        int read_head;
-        int read_tail;
-        int read_cnt;
-        unsigned long read_flags[N_TTY_BUF_SIZE/(8*sizeof(unsigned long))];
-        unsigned char *echo_buf;
-        unsigned int echo_pos;
-        unsigned int echo_cnt;
-        int canon_data;
-        unsigned long canon_head;
-        unsigned int canon_column;
-        struct mutex atomic_read_lock;
-        struct mutex atomic_write_lock;
-        struct mutex output_lock;
-        struct mutex echo_lock;
         unsigned char *write_buf;
         int write_cnt;
-        spinlock_t read_lock;
         /* If the tty has a pending do_SAK, queue it here - akpm */
         struct work_struct SAK_work;
         struct tty_port *port;
@@ -335,8 +313,6 @@ struct tty_file_private {
 #define TTY_PTY_LOCK            16      /* pty private */
 #define TTY_NO_WRITE_SPLIT      17      /* Preserve write boundaries to driver */
 #define TTY_HUPPED              18      /* Post driver->hangup() */
-#define TTY_FLUSHING            19      /* Flushing to ldisc in progress */
-#define TTY_FLUSHPENDING        20      /* Queued buffer flush pending */
 #define TTY_HUPPING             21      /* ->hangup() in progress */
 
 #define TTY_WRITE_FLUSH(tty) tty_write_flush((tty))
@@ -412,9 +388,9 @@ 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_struct *tty);
+extern void tty_buffer_free_all(struct tty_port *port);
 extern void tty_buffer_flush(struct tty_struct *tty);
-extern void tty_buffer_init(struct tty_struct *tty);
+extern void tty_buffer_init(struct tty_port *port);
 extern speed_t tty_get_baud_rate(struct tty_struct *tty);
 extern speed_t tty_termios_baud_rate(struct ktermios *termios);
 extern speed_t tty_termios_input_baud_rate(struct ktermios *termios);
@@ -535,7 +511,7 @@ extern void n_tty_inherit_ops(struct tty_ldisc_ops *ops);
 /* tty_audit.c */
 #ifdef CONFIG_AUDIT
 extern void tty_audit_add_data(struct tty_struct *tty, unsigned char *data,
-                               size_t size);
+                               size_t size, unsigned icanon);
 extern void tty_audit_exit(void);
 extern void tty_audit_fork(struct signal_struct *sig);
 extern void tty_audit_tiocsti(struct tty_struct *tty, char ch);
@@ -544,7 +520,7 @@ extern int tty_audit_push_task(struct task_struct *tsk,
                                kuid_t loginuid, u32 sessionid);
 #else
 static inline void tty_audit_add_data(struct tty_struct *tty,
-                                      unsigned char *data, size_t size)
+                unsigned char *data, size_t size, unsigned icanon)
 {
 }
 static inline void tty_audit_tiocsti(struct tty_struct *tty, char ch)
diff --git a/include/linux/tty_flip.h b/include/linux/tty_flip.h
index 9239d033a0a3..2002344ed36a 100644
--- a/include/linux/tty_flip.h
+++ b/include/linux/tty_flip.h
@@ -11,7 +11,7 @@ void tty_schedule_flip(struct tty_struct *tty);
 static inline int tty_insert_flip_char(struct tty_struct *tty,
                                         unsigned char ch, char flag)
 {
-        struct tty_buffer *tb = tty->buf.tail;
+        struct tty_buffer *tb = tty->port->buf.tail;
         if (tb && tb->used < tb->size) {
                 tb->flag_buf_ptr[tb->used] = flag;
                 tb->char_buf_ptr[tb->used++] = ch;