2 files changed, 32 insertions, 16 deletions

diff --git a/kernel/power/power.h b/kernel/power/power.h
index 23c17031ed21..6ca85fd4975f 100644
--- a/kernel/power/power.h
+++ b/kernel/power/power.h
@@ -156,15 +156,12 @@ struct resume_swap_area {
 #define SNAPSHOT_FREE_SWAP_PAGES        _IO(SNAPSHOT_IOC_MAGIC, 9)
 #define SNAPSHOT_SET_SWAP_FILE          _IOW(SNAPSHOT_IOC_MAGIC, 10, unsigned int)
 #define SNAPSHOT_S2RAM                  _IO(SNAPSHOT_IOC_MAGIC, 11)
-#define SNAPSHOT_PMOPS                  _IOW(SNAPSHOT_IOC_MAGIC, 12, unsigned int)
 #define SNAPSHOT_SET_SWAP_AREA          _IOW(SNAPSHOT_IOC_MAGIC, 13, \
                                                         struct resume_swap_area)
 #define SNAPSHOT_GET_IMAGE_SIZE         _IOR(SNAPSHOT_IOC_MAGIC, 14, loff_t)
-#define SNAPSHOT_IOC_MAXNR      14
-
-#define PMOPS_PREPARE   1
-#define PMOPS_ENTER     2
-#define PMOPS_FINISH    3
+#define SNAPSHOT_PLATFORM_SUPPORT       _IO(SNAPSHOT_IOC_MAGIC, 15)
+#define SNAPSHOT_POWER_OFF              _IO(SNAPSHOT_IOC_MAGIC, 16)
+#define SNAPSHOT_IOC_MAXNR      16
 
 /* If unset, the snapshot device cannot be open. */
 extern atomic_t snapshot_device_available;
diff --git a/kernel/power/user.c b/kernel/power/user.c
index 88aac26e598a..de3fb433ae39 100644
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -28,6 +28,18 @@
 
 #include "power.h"
 
+/*
+ * NOTE: The SNAPSHOT_PMOPS ioctl is obsolete and will be removed in the
+ * future.  It is only preserved here for compatibility with existing userland
+ * utilities.
+ */
+#define SNAPSHOT_PMOPS          _IOW(SNAPSHOT_IOC_MAGIC, 12, unsigned int)
+
+#define PMOPS_PREPARE   1
+#define PMOPS_ENTER     2
+#define PMOPS_FINISH    3
+
+
 #define SNAPSHOT_MINOR  231
 
 static struct snapshot_data {
@@ -36,7 +48,7 @@ static struct snapshot_data {
         int mode;
         char frozen;
         char ready;
-        char platform_suspend;
+        char platform_support;
 } snapshot_state;
 
 atomic_t snapshot_device_available = ATOMIC_INIT(1);
@@ -70,7 +82,7 @@ static int snapshot_open(struct inode *inode, struct file *filp)
         }
         data->frozen = 0;
         data->ready = 0;
-        data->platform_suspend = 0;
+        data->platform_support = 0;
 
         return 0;
 }
@@ -183,7 +195,7 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp,
                         error = -EPERM;
                         break;
                 }
-                error = hibernation_snapshot(data->platform_suspend);
+                error = hibernation_snapshot(data->platform_support);
                 if (!error)
                         error = put_user(in_suspend, (unsigned int __user *)arg);
                 if (!error)
@@ -197,7 +209,7 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp,
                         error = -EPERM;
                         break;
                 }
-                error = hibernation_restore(data->platform_suspend);
+                error = hibernation_restore(data->platform_support);
                 break;
 
         case SNAPSHOT_FREE:
@@ -285,26 +297,33 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp,
                 mutex_unlock(&pm_mutex);
                 break;
 
-        case SNAPSHOT_PMOPS:
+        case SNAPSHOT_PLATFORM_SUPPORT:
+                data->platform_support = !!arg;
+                break;
+
+        case SNAPSHOT_POWER_OFF:
+                if (data->platform_support)
+                        error = hibernation_platform_enter();
+                break;
+
+        case SNAPSHOT_PMOPS: /* This ioctl is deprecated */
                 error = -EINVAL;
 
                 switch (arg) {
 
                 case PMOPS_PREPARE:
-                        data->platform_suspend = 1;
+                        data->platform_support = 1;
                         error = 0;
                         break;
 
                 case PMOPS_ENTER:
-                        if (data->platform_suspend)
+                        if (data->platform_support)
                                 error = hibernation_platform_enter();
-
                         break;
 
                 case PMOPS_FINISH:
-                        if (data->platform_suspend)
+                        if (data->platform_support)
                                 error = 0;
-
                         break;
 
                 default: