diff options
| -rw-r--r-- | drivers/mfd/ucb1400_core.c | 20 | ||||
| -rw-r--r-- | include/linux/ucb1400.h | 23 |
2 files changed, 24 insertions, 19 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; diff --git a/include/linux/ucb1400.h b/include/linux/ucb1400.h index 970473bf8d5a..ed889f4168f3 100644 --- a/include/linux/ucb1400.h +++ b/include/linux/ucb1400.h @@ -134,28 +134,13 @@ static inline void ucb1400_adc_enable(struct snd_ac97 *ac97) ucb1400_reg_write(ac97, UCB_ADC_CR, UCB_ADC_ENA); } -static 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; -} - static inline void ucb1400_adc_disable(struct snd_ac97 *ac97) { ucb1400_reg_write(ac97, UCB_ADC_CR, 0); } + +unsigned int ucb1400_adc_read(struct snd_ac97 *ac97, u16 adc_channel, + int adcsync); + #endif |