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* [PATCH] iio: adc: sun4i-gpadc: select REGMAP_IRQ
@ 2018-05-25 15:34 Arnd Bergmann
  2018-05-27  9:35 ` Jonathan Cameron
  0 siblings, 1 reply; 2+ messages in thread
From: Arnd Bergmann @ 2018-05-25 15:34 UTC (permalink / raw)
  To: Jonathan Cameron
  Cc: Quentin Schulz, Chen-Yu Tsai, Maxime Ripard, Arnd Bergmann,
	Hartmut Knaack, Lars-Peter Clausen, Peter Meerwald-Stadler,
	Mark Brown, linux-iio, linux-kernel

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: d1caa9905538 ("iio: adc: add support for Allwinner SoCs ADC")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/iio/adc/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
index 9da79070357c..13922b595503 100644
--- a/drivers/iio/adc/Kconfig
+++ b/drivers/iio/adc/Kconfig
@@ -717,6 +717,7 @@ config SUN4I_GPADC
 	depends on IIO
 	depends on MFD_SUN4I_GPADC || MACH_SUN8I
 	depends on THERMAL || !THERMAL_OF
+	select REGMAP_IRQ
 	help
 	  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
-- 
2.9.0

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2018-05-25 15:34 [PATCH] iio: adc: sun4i-gpadc: select REGMAP_IRQ Arnd Bergmann
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