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
  ...

2 files changed, 11 insertions, 4 deletions

diff --git a/Documentation/DocBook/uio-howto.tmpl b/Documentation/DocBook/uio-howto.tmpl
index ddb05e98af0..95618159e29 100644
--- a/Documentation/DocBook/uio-howto.tmpl
+++ b/Documentation/DocBook/uio-howto.tmpl
@@ -984,7 +984,7 @@ int main()
 		return errno;
 	}
 	configfd = open("/sys/class/uio/uio0/device/config", O_RDWR);
-	if (uiofd < 0) {
+	if (configfd < 0) {
 		perror("config open:");
 		return errno;
 	}
diff --git a/Documentation/w1/slaves/w1_therm b/Documentation/w1/slaves/w1_therm
index 874a8ca93fe..cc62a95e477 100644
--- a/Documentation/w1/slaves/w1_therm
+++ b/Documentation/w1/slaves/w1_therm
@@ -34,9 +34,16 @@ currently supported.  The driver also doesn't support reduced
 precision (which would also reduce the conversion time).
 
 The module parameter strong_pullup can be set to 0 to disable the
-strong pullup or 1 to enable.  If enabled the 5V strong pullup will be
-enabled when the conversion is taking place provided the master driver
-must support the strong pullup (or it falls back to a pullup
+strong pullup, 1 to enable autodetection or 2 to force strong pullup.
+In case of autodetection, the driver will use the "READ POWER SUPPLY"
+command to check if there are pariste powered devices on the bus.
+If so, it will activate the master's strong pullup.
+In case the detection of parasite devices using this command fails
+(seems to be the case with some DS18S20) the strong pullup can
+be force-enabled.
+If the strong pullup is enabled, the master's strong pullup will be
+driven when the conversion is taking place, provided the master driver
+does support the strong pullup (or it falls back to a pullup
 resistor).  The DS18b20 temperature sensor specification lists a
 maximum current draw of 1.5mA and that a 5k pullup resistor is not
 sufficient.  The strong pullup is designed to provide the additional