iio:adc:stm32-adc: Add HAS_IOMEM dependency

commit 121875b28e3bd7519a675bf8ea2c2e793452c2bd upstream.

Seems that there are config combinations in which this driver gets enabled
and hence selects the MFD, but with out HAS_IOMEM getting pulled in
via some other route.  MFD is entirely contained in an
if HAS_IOMEM block, leading to the build issue in this bugzilla.

https://bugzilla.kernel.org/show_bug.cgi?id=209889

Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20210124195034.22576-1-jic23@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
index 17e9ceb9c6c48efc90e99e8b809ab03529877e79..af4e7c0698cbdd22344def549bd6798cbce3132f 100644 (file)
--- a/drivers/iio/adc/Kconfig
+++ b/drivers/iio/adc/Kconfig
@@ -912,6 +912,7 @@ config STM32_ADC_CORE
        depends on ARCH_STM32 || COMPILE_TEST
        depends on OF
        depends on REGULATOR
+       depends on HAS_IOMEM
        select IIO_BUFFER
        select MFD_STM32_TIMERS
        select IIO_STM32_TIMER_TRIGGER