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mfd: Provide a generic version of mc13xxx adc_do_conversion

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This is needed to convert the touch driver away from using struct mc13783.

Note this patch drops MC13783_ADC0_ADREFMODE. This is unused and doesn't
exist on mc13892.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Uwe Kleine-König
2011-08-24 15:28:21 +02:00
committed by Samuel Ortiz
parent f3ca07824f
commit fec316d632
3 changed files with 80 additions and 61 deletions
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19
include/linux/mfd/mc13xxx.h
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@@ -37,6 +37,9 @@ int mc13xxx_irq_ack(struct mc13xxx *mc13xxx, int irq);
int mc13xxx_get_flags(struct mc13xxx *mc13xxx);
int mc13xxx_adc_do_conversion(struct mc13xxx *mc13xxx,
unsigned int mode, unsigned int channel, unsigned int *sample);
#define MC13XXX_IRQ_ADCDONE 0
#define MC13XXX_IRQ_ADCBISDONE 1
#define MC13XXX_IRQ_TS 2
@@ -150,4 +153,20 @@ struct mc13xxx_platform_data {
struct mc13xxx_leds_platform_data *leds;
};
#define MC13XXX_ADC_MODE_TS 1
#define MC13XXX_ADC_MODE_SINGLE_CHAN 2
#define MC13XXX_ADC_MODE_MULT_CHAN 3
#define MC13XXX_ADC0 43
#define MC13XXX_ADC0_ADREFEN (1 << 10)
#define MC13XXX_ADC0_TSMOD0 (1 << 12)
#define MC13XXX_ADC0_TSMOD1 (1 << 13)
#define MC13XXX_ADC0_TSMOD2 (1 << 14)
#define MC13XXX_ADC0_ADINC1 (1 << 16)
#define MC13XXX_ADC0_ADINC2 (1 << 17)
#define MC13XXX_ADC0_TSMOD_MASK (MC13XXX_ADC0_TSMOD0 | \
MC13XXX_ADC0_TSMOD1 | \
MC13XXX_ADC0_TSMOD2)
#endif /* ifndef __LINUX_MFD_MC13XXX_H */