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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-20 19:17:02 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-20 19:17:02 +0200 |
| commit | 93db6294958f62643a917e44d1abc85440e600cf (patch) | |
| tree | 33de2c41b0f70d209d64487d1a2bba6d673015ef /drivers/mfd | |
| parent | Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/air... (diff) | |
| parent | Input: add driver for Synaptics I2C touchpad (diff) | |
| download | linux-93db6294958f62643a917e44d1abc85440e600cf.tar.xz linux-93db6294958f62643a917e44d1abc85440e600cf.zip | |
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
...
Diffstat (limited to 'drivers/mfd')
| -rw-r--r-- | drivers/mfd/ucb1400_core.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/mfd/ucb1400_core.c b/drivers/mfd/ucb1400_core.c index 178159e264ce..78c2135c5de6 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; |