7 files changed, 201 insertions, 4 deletions

diff --git a/include/linux/completion.h b/include/linux/completion.h
index d2961b66d53d..57faa60de9bd 100644
--- a/include/linux/completion.h
+++ b/include/linux/completion.h
@@ -55,4 +55,49 @@ extern void complete_all(struct completion *);
 
 #define INIT_COMPLETION(x)      ((x).done = 0)
 
+
+/**
+ *      try_wait_for_completion - try to decrement a completion without blocking
+ *      @x:     completion structure
+ *
+ *      Returns: 0 if a decrement cannot be done without blocking
+ *               1 if a decrement succeeded.
+ *
+ *      If a completion is being used as a counting completion,
+ *      attempt to decrement the counter without blocking. This
+ *      enables us to avoid waiting if the resource the completion
+ *      is protecting is not available.
+ */
+static inline bool try_wait_for_completion(struct completion *x)
+{
+        int ret = 1;
+
+        spin_lock_irq(&x->wait.lock);
+        if (!x->done)
+                ret = 0;
+        else
+                x->done--;
+        spin_unlock_irq(&x->wait.lock);
+        return ret;
+}
+
+/**
+ *      completion_done - Test to see if a completion has any waiters
+ *      @x:     completion structure
+ *
+ *      Returns: 0 if there are waiters (wait_for_completion() in progress)
+ *               1 if there are no waiters.
+ *
+ */
+static inline bool completion_done(struct completion *x)
+{
+        int ret = 1;
+
+        spin_lock_irq(&x->wait.lock);
+        if (!x->done)
+                ret = 0;
+        spin_unlock_irq(&x->wait.lock);
+        return ret;
+}
+
 #endif
diff --git a/include/linux/cred.h b/include/linux/cred.h
new file mode 100644
index 000000000000..b69222cc1fd2
--- /dev/null
+++ b/include/linux/cred.h
@@ -0,0 +1,50 @@
+/* Credentials management
+ *
+ * Copyright (C) 2008 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#ifndef _LINUX_CRED_H
+#define _LINUX_CRED_H
+
+#define get_current_user()      (get_uid(current->user))
+
+#define task_uid(task)          ((task)->uid)
+#define task_gid(task)          ((task)->gid)
+#define task_euid(task)         ((task)->euid)
+#define task_egid(task)         ((task)->egid)
+
+#define current_uid()           (current->uid)
+#define current_gid()           (current->gid)
+#define current_euid()          (current->euid)
+#define current_egid()          (current->egid)
+#define current_suid()          (current->suid)
+#define current_sgid()          (current->sgid)
+#define current_fsuid()         (current->fsuid)
+#define current_fsgid()         (current->fsgid)
+#define current_cap()           (current->cap_effective)
+
+#define current_uid_gid(_uid, _gid)             \
+do {                                            \
+        *(_uid) = current->uid;                 \
+        *(_gid) = current->gid;                 \
+} while(0)
+
+#define current_euid_egid(_uid, _gid)           \
+do {                                            \
+        *(_uid) = current->euid;                \
+        *(_gid) = current->egid;                \
+} while(0)
+
+#define current_fsuid_fsgid(_uid, _gid)         \
+do {                                            \
+        *(_uid) = current->fsuid;               \
+        *(_gid) = current->fsgid;               \
+} while(0)
+
+#endif /* _LINUX_CRED_H */
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 5850bfb968a8..cfb0d87b99fc 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -87,6 +87,7 @@ struct sched_param {
 #include <linux/task_io_accounting.h>
 #include <linux/kobject.h>
 #include <linux/latencytop.h>
+#include <linux/cred.h>
 
 #include <asm/processor.h>
 
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index cfcc45b3bef0..358661c9990e 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -901,7 +901,7 @@ extern unsigned char *__pskb_pull_tail(struct sk_buff *skb, int delta);
 static inline unsigned char *__pskb_pull(struct sk_buff *skb, unsigned int len)
 {
         if (len > skb_headlen(skb) &&
-            !__pskb_pull_tail(skb, len-skb_headlen(skb)))
+            !__pskb_pull_tail(skb, len - skb_headlen(skb)))
                 return NULL;
         skb->len -= len;
         return skb->data += len;
@@ -918,7 +918,7 @@ static inline int pskb_may_pull(struct sk_buff *skb, unsigned int len)
                 return 1;
         if (unlikely(len > skb->len))
                 return 0;
-        return __pskb_pull_tail(skb, len-skb_headlen(skb)) != NULL;
+        return __pskb_pull_tail(skb, len - skb_headlen(skb)) != NULL;
 }
 
 /**
@@ -1321,7 +1321,7 @@ static inline int skb_padto(struct sk_buff *skb, unsigned int len)
         unsigned int size = skb->len;
         if (likely(size >= len))
                 return 0;
-        return skb_pad(skb, len-size);
+        return skb_pad(skb, len - size);
 }
 
 static inline int skb_add_data(struct sk_buff *skb,
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 5811c5da69f9..0924cd9c30f6 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -110,6 +110,8 @@ enum usb_interface_condition {
  * @sysfs_files_created: sysfs attributes exist
  * @needs_remote_wakeup: flag set when the driver requires remote-wakeup
  *      capability during autosuspend.
+ * @needs_binding: flag set when the driver should be re-probed or unbound
+ *      following a reset or suspend operation it doesn't support.
  * @dev: driver model's view of this device
  * @usb_dev: if an interface is bound to the USB major, this will point
  *      to the sysfs representation for that device.
diff --git a/include/linux/usb/musb.h b/include/linux/usb/musb.h
new file mode 100644
index 000000000000..630962c04ca4
--- /dev/null
+++ b/include/linux/usb/musb.h
@@ -0,0 +1,98 @@
+/*
+ * This is used to for host and peripheral modes of the driver for
+ * Inventra (Multidrop) Highspeed Dual-Role Controllers:  (M)HDRC.
+ *
+ * Board initialization should put one of these into dev->platform_data,
+ * probably on some platform_device named "musb_hdrc".  It encapsulates
+ * key configuration differences between boards.
+ */
+
+/* The USB role is defined by the connector used on the board, so long as
+ * standards are being followed.  (Developer boards sometimes won't.)
+ */
+enum musb_mode {
+        MUSB_UNDEFINED = 0,
+        MUSB_HOST,              /* A or Mini-A connector */
+        MUSB_PERIPHERAL,        /* B or Mini-B connector */
+        MUSB_OTG                /* Mini-AB connector */
+};
+
+struct clk;
+
+struct musb_hdrc_eps_bits {
+        const char      name[16];
+        u8              bits;
+};
+
+struct musb_hdrc_config {
+        /* MUSB configuration-specific details */
+        unsigned        multipoint:1;   /* multipoint device */
+        unsigned        dyn_fifo:1;     /* supports dynamic fifo sizing */
+        unsigned        soft_con:1;     /* soft connect required */
+        unsigned        utm_16:1;       /* utm data witdh is 16 bits */
+        unsigned        big_endian:1;   /* true if CPU uses big-endian */
+        unsigned        mult_bulk_tx:1; /* Tx ep required for multbulk pkts */
+        unsigned        mult_bulk_rx:1; /* Rx ep required for multbulk pkts */
+        unsigned        high_iso_tx:1;  /* Tx ep required for HB iso */
+        unsigned        high_iso_rx:1;  /* Rx ep required for HD iso */
+        unsigned        dma:1;          /* supports DMA */
+        unsigned        vendor_req:1;   /* vendor registers required */
+
+        u8              num_eps;        /* number of endpoints _with_ ep0 */
+        u8              dma_channels;   /* number of dma channels */
+        u8              dyn_fifo_size;  /* dynamic size in bytes */
+        u8              vendor_ctrl;    /* vendor control reg width */
+        u8              vendor_stat;    /* vendor status reg witdh */
+        u8              dma_req_chan;   /* bitmask for required dma channels */
+        u8              ram_bits;       /* ram address size */
+
+        struct musb_hdrc_eps_bits *eps_bits;
+};
+
+struct musb_hdrc_platform_data {
+        /* MUSB_HOST, MUSB_PERIPHERAL, or MUSB_OTG */
+        u8              mode;
+
+        /* for clk_get() */
+        const char      *clock;
+
+        /* (HOST or OTG) switch VBUS on/off */
+        int             (*set_vbus)(struct device *dev, int is_on);
+
+        /* (HOST or OTG) mA/2 power supplied on (default = 8mA) */
+        u8              power;
+
+        /* (PERIPHERAL) mA/2 max power consumed (default = 100mA) */
+        u8              min_power;
+
+        /* (HOST or OTG) msec/2 after VBUS on till power good */
+        u8              potpgt;
+
+        /* Power the device on or off */
+        int             (*set_power)(int state);
+
+        /* Turn device clock on or off */
+        int             (*set_clock)(struct clk *clock, int is_on);
+
+        /* MUSB configuration-specific details */
+        struct musb_hdrc_config *config;
+};
+
+
+/* TUSB 6010 support */
+
+#define TUSB6010_OSCCLK_60      16667   /* psec/clk @ 60.0 MHz */
+#define TUSB6010_REFCLK_24      41667   /* psec/clk @ 24.0 MHz XI */
+#define TUSB6010_REFCLK_19      52083   /* psec/clk @ 19.2 MHz CLKIN */
+
+#ifdef  CONFIG_ARCH_OMAP2
+
+extern int __init tusb6010_setup_interface(
+                struct musb_hdrc_platform_data *data,
+                unsigned ps_refclk, unsigned waitpin,
+                unsigned async_cs, unsigned sync_cs,
+                unsigned irq, unsigned dmachan);
+
+extern int tusb6010_platform_retime(unsigned is_refclk);
+
+#endif  /* OMAP2 */
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
index 09a3e6a7518f..655341d0f534 100644
--- a/include/linux/usb/serial.h
+++ b/include/linux/usb/serial.h
@@ -17,7 +17,8 @@
 #include <linux/mutex.h>
 
 #define SERIAL_TTY_MAJOR        188     /* Nice legal number now */
-#define SERIAL_TTY_MINORS       255     /* loads of devices :) */
+#define SERIAL_TTY_MINORS       254     /* loads of devices :) */
+#define SERIAL_TTY_NO_MINOR     255     /* No minor was assigned */
 
 /* The maximum number of ports one device can grab at once */
 #define MAX_NUM_PORTS           8