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iio: adc: sun4i-gpadc: select REGMAP_IRQ 

We can't call regmap_irq_get_virq() unless the regmap-irq support
is enabled:

drivers/iio/adc/sun4i-gpadc-iio.o: In function `sun4i_irq_init':
sun4i-gpadc-iio.c:(.text+0x59c): undefined reference to `regmap_irq_get_virq'

I came across this in a randconfig build now, but I guess this is
a much older problem that I simply never hit before because regmap_irq
is usually enabled by one of the other drivers that need it.

Fixes: d1caa99055 ("iio: adc: add support for Allwinner SoCs ADC")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Arnd Bergmann 2018-05-25 17:34:23 +02:00 committed by Jonathan Cameron
parent 2873c3f0e2
commit c2c8406b31
1 changed files with 1 additions and 0 deletions
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drivers/iio/adc/Kconfig
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@ -717,6 +717,7 @@ config SUN4I_GPADC
depends on IIO depends on IIO
depends on MFD_SUN4I_GPADC || MACH_SUN8I depends on MFD_SUN4I_GPADC || MACH_SUN8I
depends on THERMAL || !THERMAL_OF depends on THERMAL || !THERMAL_OF
select REGMAP_IRQ
help help
Say yes here to build support for Allwinner (A10, A13 and A31) SoCs Say yes here to build support for Allwinner (A10, A13 and A31) SoCs
GPADC. This ADC provides 4 channels which can be used as an ADC or as GPADC. This ADC provides 4 channels which can be used as an ADC or as