From f8f410bc963883acc6a17e6c12493fe7ede5d6d5 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Tue, 28 Mar 2017 12:07:23 +0200 Subject: [PATCH] iio: adc: sun4i: add THERMAL dependency With CONFIG_THERMAL=m and CONFIG_SUN4I_GPADC=y, we get a link error from calling devm_thermal_zone_of_sensor_register: drivers/iio/built-in.o: In function `sun4i_gpadc_probe': :(.text+0x1c284): undefined reference to `devm_thermal_zone_of_sensor_register' This adds a Kconfig dependency to ensure we can only have the ADC driver as built-in when this function is also built-in, or when we see the empty stub implementation. When the thermal code is a module, we can still build the adc driver as a module, too. Signed-off-by: Arnd Bergmann Fixes: a54cbf4d5d82e ("iio: adc: add support for Allwinner SoCs ADC") Signed-off-by: Jonathan Cameron --- drivers/iio/adc/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig index 79b04693a5d15..b7b3a9a800437 100644 --- a/drivers/iio/adc/Kconfig +++ b/drivers/iio/adc/Kconfig @@ -595,6 +595,7 @@ config SUN4I_GPADC tristate "Support for the Allwinner SoCs GPADC" depends on IIO depends on MFD_SUN4I_GPADC + depends on THERMAL || !THERMAL_OF 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 -- 2.39.5