Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (35 commits)
  Input: add driver for Synaptics I2C touchpad
  Input: synaptics - add support for reporting x/y resolution
  Input: ALPS - handle touchpoints buttons correctly
  Input: gpio-keys - change timer to workqueue
  Input: ads7846 - pin change interrupt support
  Input: add support for touchscreen on W90P910 ARM platform
  Input: appletouch - improve finger detection
  Input: wacom - clear Intuos4 wheel data when finger leaves proximity
  Input: ucb1400 - move static function from header into core
  Input: add driver for EETI touchpanels
  Input: ads7846 - more detailed model name in sysfs
  Input: ads7846 - support swapping x and y axes
  Input: ati_remote2 - use non-atomic bitops
  Input: introduce lm8323 keypad driver
  Input: psmouse - ESD workaround fix for OLPC XO touchpad
  Input: tsc2007 - make sure platform provides get_pendown_state()
  Input: uinput - flush all pending ff effects before destroying device
  Input: simplify name handling for certain input handles
  Input: serio - do not use deprecated dev.power.power_state
  Input: wacom - add support for Intuos4 tablets
  ...

1 files changed, 20 insertions, 0 deletions

diff --git a/drivers/mfd/ucb1400_core.c b/drivers/mfd/ucb1400_core.c
index 178159e264c..78c2135c5de 100644
--- a/drivers/mfd/ucb1400_core.c
+++ b/drivers/mfd/ucb1400_core.c
@@ -23,6 +23,26 @@
 #include <linux/module.h>
 #include <linux/ucb1400.h>
 
+unsigned int ucb1400_adc_read(struct snd_ac97 *ac97, u16 adc_channel,
+                int adcsync)
+{
+        unsigned int val;
+
+        if (adcsync)
+                adc_channel |= UCB_ADC_SYNC_ENA;
+
+        ucb1400_reg_write(ac97, UCB_ADC_CR, UCB_ADC_ENA | adc_channel);
+        ucb1400_reg_write(ac97, UCB_ADC_CR, UCB_ADC_ENA | adc_channel |
+                        UCB_ADC_START);
+
+        while (!((val = ucb1400_reg_read(ac97, UCB_ADC_DATA))
+                                & UCB_ADC_DAT_VALID))
+                schedule_timeout_uninterruptible(1);
+
+        return val & UCB_ADC_DAT_MASK;
+}
+EXPORT_SYMBOL_GPL(ucb1400_adc_read);
+
 static int ucb1400_core_probe(struct device *dev)
 {
         int err;