Merge tag 'staging-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging tree changes from Greg Kroah-Hartman:
 "Here is the big staging tree pull request for the 3.5-rc1 merge
  window.

  Loads of changes here, and we just narrowly added more lines than we
  added:
   622 files changed, 28356 insertions(+), 26059 deletions(-)

  But, good news is that there is a number of subsystems that moved out
  of the staging tree, to their respective "real" portions of the
  kernel.

  Code that moved out was:
	- iio core code
	- mei driver
	- vme core and bridge drivers

  There was one broken network driver that moved into staging as a step
  before it is removed from the tree (pc300), and there was a few new
  drivers added to the tree:
	- new iio drivers
	- gdm72xx wimax USB driver
	- ipack subsystem and 2 drivers

  All of the movements around have acks from the various subsystem
  maintainers, and all of this has been in the linux-next tree for a
  while.

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

Fixed up various trivial conflicts, along with a non-trivial one found
in -next and pointed out by Olof Johanssen: a clean - but incorrect -
merge of the arch/arm/boot/dts/at91sam9g20.dtsi file.  Fix up manually
as per Stephen Rothwell.

* tag 'staging-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (536 commits)
  Staging: bcm: Remove two unused variables from Adapter.h
  Staging: bcm: Removes the volatile type definition from Adapter.h
  Staging: bcm: Rename all "INT" to "int" in Adapter.h
  Staging: bcm: Fix warning: __packed vs. __attribute__((packed)) in Adapter.h
  Staging: bcm: Correctly format all comments in Adapter.h
  Staging: bcm: Fix all whitespace issues in Adapter.h
  Staging: bcm: Properly format braces in Adapter.h
  Staging: ipack/bridges/tpci200: remove unneeded casts
  Staging: ipack/bridges/tpci200: remove TPCI200_SHORTNAME constant
  Staging: ipack: remove board_name and bus_name fields from struct ipack_device
  Staging: ipack: improve the register of a bus and a device in the bus.
  staging: comedi: cleanup all the comedi_driver 'detach' functions
  staging: comedi: remove all 'default N' in Kconfig
  staging: line6/config.h: Delete unused header
  staging: gdm72xx depends on NET
  staging: gdm72xx: Set up parent link in sysfs for gdm72xx devices
  staging: drm/omap: initial dmabuf/prime import support
  staging: drm/omap: dmabuf/prime mmap support
  pstore/ram: Add ECC support
  pstore/ram: Switch to persistent_ram routines
  ...

1 files changed, 106 insertions, 31 deletions

diff --git a/drivers/staging/android/alarm-dev.c b/drivers/staging/android/alarm-dev.c
index 03efb34cbe2e..53ce6ecf390a 100644
--- a/drivers/staging/android/alarm-dev.c
+++ b/drivers/staging/android/alarm-dev.c
@@ -22,19 +22,9 @@
 #include <linux/sched.h>
 #include <linux/spinlock.h>
 #include <linux/uaccess.h>
+#include <linux/alarmtimer.h>
 #include "android_alarm.h"
 
-/* XXX - Hack out wakelocks, while they are out of tree */
-struct wake_lock {
-	int i;
-};
-#define wake_lock(x)
-#define wake_lock_timeout(x, y)
-#define wake_unlock(x)
-#define WAKE_LOCK_SUSPEND 0
-#define wake_lock_init(x, y, z) ((x)->i = 1)
-#define wake_lock_destroy(x)
-
 #define ANDROID_ALARM_PRINT_INFO (1U << 0)
 #define ANDROID_ALARM_PRINT_IO (1U << 1)
 #define ANDROID_ALARM_PRINT_INT (1U << 2)
@@ -54,19 +44,65 @@ module_param_named(debug_mask, debug_mask, int, S_IRUGO | S_IWUSR | S_IWGRP);
 	ANDROID_ALARM_RTC_WAKEUP_MASK | \
 	ANDROID_ALARM_ELAPSED_REALTIME_WAKEUP_MASK)
 
-/* support old usespace code */
+/* support old userspace code */
 #define ANDROID_ALARM_SET_OLD               _IOW('a', 2, time_t) /* set alarm */
 #define ANDROID_ALARM_SET_AND_WAIT_OLD      _IOW('a', 3, time_t)
 
 static int alarm_opened;
 static DEFINE_SPINLOCK(alarm_slock);
-static struct wake_lock alarm_wake_lock;
+static struct wakeup_source alarm_wake_lock;
 static DECLARE_WAIT_QUEUE_HEAD(alarm_wait_queue);
 static uint32_t alarm_pending;
 static uint32_t alarm_enabled;
 static uint32_t wait_pending;
 
-static struct android_alarm alarms[ANDROID_ALARM_TYPE_COUNT];
+struct devalarm {
+	union {
+		struct hrtimer hrt;
+		struct alarm alrm;
+	} u;
+	enum android_alarm_type type;
+};
+
+static struct devalarm alarms[ANDROID_ALARM_TYPE_COUNT];
+
+
+static int is_wakeup(enum android_alarm_type type)
+{
+	if (type == ANDROID_ALARM_RTC_WAKEUP ||
+			type == ANDROID_ALARM_ELAPSED_REALTIME_WAKEUP)
+		return 1;
+	return 0;
+}
+
+
+static void devalarm_start(struct devalarm *alrm, ktime_t exp)
+{
+	if (is_wakeup(alrm->type))
+		alarm_start(&alrm->u.alrm, exp);
+	else
+		hrtimer_start(&alrm->u.hrt, exp, HRTIMER_MODE_ABS);
+}
+
+
+static int devalarm_try_to_cancel(struct devalarm *alrm)
+{
+	int ret;
+	if (is_wakeup(alrm->type))
+		ret = alarm_try_to_cancel(&alrm->u.alrm);
+	else
+		ret = hrtimer_try_to_cancel(&alrm->u.hrt);
+	return ret;
+}
+
+static void devalarm_cancel(struct devalarm *alrm)
+{
+	if (is_wakeup(alrm->type))
+		alarm_cancel(&alrm->u.alrm);
+	else
+		hrtimer_cancel(&alrm->u.hrt);
+}
+
 
 static long alarm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
@@ -75,6 +111,8 @@ static long alarm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 	struct timespec new_alarm_time;
 	struct timespec new_rtc_time;
 	struct timespec tmp_time;
+	struct rtc_time new_rtc_tm;
+	struct rtc_device *rtc_dev;
 	enum android_alarm_type alarm_type = ANDROID_ALARM_IOCTL_TO_TYPE(cmd);
 	uint32_t alarm_type_mask = 1U << alarm_type;
 
@@ -101,11 +139,11 @@ static long alarm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 	case ANDROID_ALARM_CLEAR(0):
 		spin_lock_irqsave(&alarm_slock, flags);
 		pr_alarm(IO, "alarm %d clear\n", alarm_type);
-		android_alarm_try_to_cancel(&alarms[alarm_type]);
+		devalarm_try_to_cancel(&alarms[alarm_type]);
 		if (alarm_pending) {
 			alarm_pending &= ~alarm_type_mask;
 			if (!alarm_pending && !wait_pending)
-				wake_unlock(&alarm_wake_lock);
+				__pm_relax(&alarm_wake_lock);
 		}
 		alarm_enabled &= ~alarm_type_mask;
 		spin_unlock_irqrestore(&alarm_slock, flags);
@@ -132,8 +170,7 @@ from_old_alarm_set:
 		pr_alarm(IO, "alarm %d set %ld.%09ld\n", alarm_type,
 			new_alarm_time.tv_sec, new_alarm_time.tv_nsec);
 		alarm_enabled |= alarm_type_mask;
-		android_alarm_start_range(&alarms[alarm_type],
-			timespec_to_ktime(new_alarm_time),
+		devalarm_start(&alarms[alarm_type],
 			timespec_to_ktime(new_alarm_time));
 		spin_unlock_irqrestore(&alarm_slock, flags);
 		if (ANDROID_ALARM_BASE_CMD(cmd) != ANDROID_ALARM_SET_AND_WAIT(0)
@@ -144,7 +181,7 @@ from_old_alarm_set:
 		spin_lock_irqsave(&alarm_slock, flags);
 		pr_alarm(IO, "alarm wait\n");
 		if (!alarm_pending && wait_pending) {
-			wake_unlock(&alarm_wake_lock);
+			__pm_relax(&alarm_wake_lock);
 			wait_pending = 0;
 		}
 		spin_unlock_irqrestore(&alarm_slock, flags);
@@ -163,7 +200,13 @@ from_old_alarm_set:
 			rv = -EFAULT;
 			goto err1;
 		}
-		rv = android_alarm_set_rtc(new_rtc_time);
+		rtc_time_to_tm(new_rtc_time.tv_sec, &new_rtc_tm);
+		rtc_dev = alarmtimer_get_rtcdev();
+		rv = do_settimeofday(&new_rtc_time);
+		if (rv < 0)
+			goto err1;
+		if (rtc_dev)
+			rv = rtc_set_time(rtc_dev, &new_rtc_tm);
 		spin_lock_irqsave(&alarm_slock, flags);
 		alarm_pending |= ANDROID_ALARM_TIME_CHANGE_MASK;
 		wake_up(&alarm_wait_queue);
@@ -179,8 +222,7 @@ from_old_alarm_set:
 			break;
 		case ANDROID_ALARM_ELAPSED_REALTIME_WAKEUP:
 		case ANDROID_ALARM_ELAPSED_REALTIME:
-			tmp_time =
-				ktime_to_timespec(alarm_get_elapsed_realtime());
+			get_monotonic_boottime(&tmp_time);
 			break;
 		case ANDROID_ALARM_TYPE_COUNT:
 		case ANDROID_ALARM_SYSTEMTIME:
@@ -224,14 +266,14 @@ static int alarm_release(struct inode *inode, struct file *file)
 				alarm_enabled &= ~alarm_type_mask;
 			}
 			spin_unlock_irqrestore(&alarm_slock, flags);
-			android_alarm_cancel(&alarms[i]);
+			devalarm_cancel(&alarms[i]);
 			spin_lock_irqsave(&alarm_slock, flags);
 		}
 		if (alarm_pending | wait_pending) {
 			if (alarm_pending)
 				pr_alarm(INFO, "alarm_release: clear "
 					"pending alarms %x\n", alarm_pending);
-			wake_unlock(&alarm_wake_lock);
+			__pm_relax(&alarm_wake_lock);
 			wait_pending = 0;
 			alarm_pending = 0;
 		}
@@ -241,15 +283,15 @@ static int alarm_release(struct inode *inode, struct file *file)
 	return 0;
 }
 
-static void alarm_triggered(struct android_alarm *alarm)
+static void devalarm_triggered(struct devalarm *alarm)
 {
 	unsigned long flags;
 	uint32_t alarm_type_mask = 1U << alarm->type;
 
-	pr_alarm(INT, "alarm_triggered type %d\n", alarm->type);
+	pr_alarm(INT, "devalarm_triggered type %d\n", alarm->type);
 	spin_lock_irqsave(&alarm_slock, flags);
 	if (alarm_enabled & alarm_type_mask) {
-		wake_lock_timeout(&alarm_wake_lock, 5 * HZ);
+		__pm_wakeup_event(&alarm_wake_lock, 5000); /* 5secs */
 		alarm_enabled &= ~alarm_type_mask;
 		alarm_pending |= alarm_type_mask;
 		wake_up(&alarm_wait_queue);
@@ -257,6 +299,25 @@ static void alarm_triggered(struct android_alarm *alarm)
 	spin_unlock_irqrestore(&alarm_slock, flags);
 }
 
+
+static enum hrtimer_restart devalarm_hrthandler(struct hrtimer *hrt)
+{
+	struct devalarm *devalrm = container_of(hrt, struct devalarm, u.hrt);
+
+	devalarm_triggered(devalrm);
+	return HRTIMER_NORESTART;
+}
+
+static enum alarmtimer_restart devalarm_alarmhandler(struct alarm *alrm,
+							ktime_t now)
+{
+	struct devalarm *devalrm = container_of(alrm, struct devalarm, u.alrm);
+
+	devalarm_triggered(devalrm);
+	return ALARMTIMER_NORESTART;
+}
+
+
 static const struct file_operations alarm_fops = {
 	.owner = THIS_MODULE,
 	.unlocked_ioctl = alarm_ioctl,
@@ -279,17 +340,31 @@ static int __init alarm_dev_init(void)
 	if (err)
 		return err;
 
-	for (i = 0; i < ANDROID_ALARM_TYPE_COUNT; i++)
-		android_alarm_init(&alarms[i], i, alarm_triggered);
-	wake_lock_init(&alarm_wake_lock, WAKE_LOCK_SUSPEND, "alarm");
+	alarm_init(&alarms[ANDROID_ALARM_RTC_WAKEUP].u.alrm,
+			ALARM_REALTIME, devalarm_alarmhandler);
+	hrtimer_init(&alarms[ANDROID_ALARM_RTC].u.hrt,
+			CLOCK_REALTIME, HRTIMER_MODE_ABS);
+	alarm_init(&alarms[ANDROID_ALARM_ELAPSED_REALTIME_WAKEUP].u.alrm,
+			ALARM_BOOTTIME, devalarm_alarmhandler);
+	hrtimer_init(&alarms[ANDROID_ALARM_ELAPSED_REALTIME].u.hrt,
+			CLOCK_BOOTTIME, HRTIMER_MODE_ABS);
+	hrtimer_init(&alarms[ANDROID_ALARM_SYSTEMTIME].u.hrt,
+			CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
+
+	for (i = 0; i < ANDROID_ALARM_TYPE_COUNT; i++) {
+		alarms[i].type = i;
+		if (!is_wakeup(i))
+			alarms[i].u.hrt.function = devalarm_hrthandler;
+	}
 
+	wakeup_source_init(&alarm_wake_lock, "alarm");
 	return 0;
 }
 
 static void  __exit alarm_dev_exit(void)
 {
 	misc_deregister(&alarm_device);
-	wake_lock_destroy(&alarm_wake_lock);
+	wakeup_source_trash(&alarm_wake_lock);
 }
 
 module_init(alarm_dev_init);