Merge tag 'char-misc-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver patches from Greg Kroah-Hartman:
 "Here's the big char/misc driver patches for 3.9-rc1.

  Nothing major here, just lots of different driver updates (mei,
  hyperv, ipack, extcon, vmci, etc.).

  All of these have been in the linux-next tree for a while."

* tag 'char-misc-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (209 commits)
  w1: w1_therm: Add force-pullup option for "broken" sensors
  w1: ds2482: Added 1-Wire pull-up support to the driver
  vme: add missing put_device() after device_register() fails
  extcon: max8997: Use workqueue to check cable state after completing boot of platform
  extcon: max8997: Set default UART/USB path on probe
  extcon: max8997: Consolidate duplicate code for checking ADC/CHG cable type
  extcon: max8997: Set default of ADC debounce time during initialization
  extcon: max8997: Remove duplicate code related to set H/W line path
  extcon: max8997: Move defined constant to header file
  extcon: max77693: Make max77693_extcon_cable static
  extcon: max8997: Remove unreachable code
  extcon: max8997: Make max8997_extcon_cable static
  extcon: max77693: Remove unnecessary goto statement to improve readability
  extcon: max77693: Convert to devm_input_allocate_device()
  extcon: gpio: Rename filename of extcon-gpio.c according to kernel naming style
  CREDITS: update email and address of Harald Hoyer
  extcon: arizona: Use MICDET for final microphone identification
  extcon: arizona: Always take the first HPDET reading as the final one
  extcon: arizona: Clear _trig_sts bits after jack detection
  extcon: arizona: Don't HPDET magic when headphones are enabled
  ...

1 files changed, 33 insertions, 13 deletions

diff --git a/drivers/hv/hv_util.c b/drivers/hv/hv_util.c
index a0667de7a04c..1d4cbd8e8261 100644
--- a/drivers/hv/hv_util.c
+++ b/drivers/hv/hv_util.c
@@ -49,6 +49,16 @@ static struct hv_util_service util_kvp = {
 	.util_deinit = hv_kvp_deinit,
 };
 
+static void perform_shutdown(struct work_struct *dummy)
+{
+	orderly_poweroff(true);
+}
+
+/*
+ * Perform the shutdown operation in a thread context.
+ */
+static DECLARE_WORK(shutdown_work, perform_shutdown);
+
 static void shutdown_onchannelcallback(void *context)
 {
 	struct vmbus_channel *channel = context;
@@ -106,7 +116,7 @@ static void shutdown_onchannelcallback(void *context)
 	}
 
 	if (execute_shutdown == true)
-		orderly_poweroff(true);
+		schedule_work(&shutdown_work);
 }
 
 /*
@@ -274,6 +284,16 @@ static int util_probe(struct hv_device *dev,
 		}
 	}
 
+	/*
+	 * The set of services managed by the util driver are not performance
+	 * critical and do not need batched reading. Furthermore, some services
+	 * such as KVP can only handle one message from the host at a time.
+	 * Turn off batched reading for all util drivers before we open the
+	 * channel.
+	 */
+
+	set_channel_read_state(dev->channel, false);
+
 	ret = vmbus_open(dev->channel, 4 * PAGE_SIZE, 4 * PAGE_SIZE, NULL, 0,
 			srv->util_cb, dev->channel);
 	if (ret)
@@ -304,21 +324,21 @@ static int util_remove(struct hv_device *dev)
 
 static const struct hv_vmbus_device_id id_table[] = {
 	/* Shutdown guid */
-	{ VMBUS_DEVICE(0x31, 0x60, 0x0B, 0X0E, 0x13, 0x52, 0x34, 0x49,
-		       0x81, 0x8B, 0x38, 0XD9, 0x0C, 0xED, 0x39, 0xDB)
-	  .driver_data = (unsigned long)&util_shutdown },
+	{ HV_SHUTDOWN_GUID,
+	  .driver_data = (unsigned long)&util_shutdown
+	},
 	/* Time synch guid */
-	{ VMBUS_DEVICE(0x30, 0xe6, 0x27, 0x95, 0xae, 0xd0, 0x7b, 0x49,
-		       0xad, 0xce, 0xe8, 0x0a, 0xb0, 0x17, 0x5c, 0xaf)
-	  .driver_data = (unsigned long)&util_timesynch },
+	{ HV_TS_GUID,
+	  .driver_data = (unsigned long)&util_timesynch
+	},
 	/* Heartbeat guid */
-	{ VMBUS_DEVICE(0x39, 0x4f, 0x16, 0x57, 0x15, 0x91, 0x78, 0x4e,
-		       0xab, 0x55, 0x38, 0x2f, 0x3b, 0xd5, 0x42, 0x2d)
-	  .driver_data = (unsigned long)&util_heartbeat },
+	{ HV_HEART_BEAT_GUID,
+	  .driver_data = (unsigned long)&util_heartbeat
+	},
 	/* KVP guid */
-	{ VMBUS_DEVICE(0xe7, 0xf4, 0xa0, 0xa9, 0x45, 0x5a, 0x96, 0x4d,
-		       0xb8, 0x27, 0x8a, 0x84, 0x1e, 0x8c, 0x3,  0xe6)
-	  .driver_data = (unsigned long)&util_kvp },
+	{ HV_KVP_GUID,
+	  .driver_data = (unsigned long)&util_kvp
+	},
 	{ },
 };