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Input: ucb1400 - move static function from header into core 

it's a little too large for static line.
The ts is currently the only mainline user but Marek Vasut claims that
there is a battery driver in an ARM tree which also needs this function.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Sebastian Andrzej Siewior 2009-05-27 06:22:58 -07:00 committed by Dmitry Torokhov
parent 10494dce0b
commit cbf806dd93
2 changed files with 24 additions and 19 deletions
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20
drivers/mfd/ucb1400_core.c
View File

@ -23,6 +23,26 @@
#include <linux/module.h> #include <linux/module.h>
#include <linux/ucb1400.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) static int ucb1400_core_probe(struct device *dev)
{ {
int err; int err;

23
include/linux/ucb1400.h
View File

@ -134,28 +134,13 @@ static inline void ucb1400_adc_enable(struct snd_ac97 *ac97)
ucb1400_reg_write(ac97, UCB_ADC_CR, UCB_ADC_ENA); 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) static inline void ucb1400_adc_disable(struct snd_ac97 *ac97)
{ {
ucb1400_reg_write(ac97, UCB_ADC_CR, 0); ucb1400_reg_write(ac97, UCB_ADC_CR, 0);
} }
unsigned int ucb1400_adc_read(struct snd_ac97 *ac97, u16 adc_channel,
int adcsync);
#endif #endif