Remove dependencies on HAS_DMA where a Kconfig symbol depends on another
symbol that implies HAS_DMA, and, optionally, on "|| COMPILE_TEST".
In most cases this other symbol is an architecture or platform specific
symbol, or PCI.

Generic symbols and drivers without platform dependencies keep their
dependencies on HAS_DMA, to prevent compiling subsystems or drivers that
cannot work anyway.

This simplifies the dependencies, and allows to improve compile-testing.

Signed-off-by: Geert Uytterhoeven <>
Reviewed-by: Mark Brown <>
Acked-by: Robin Murphy <>
Acked-by: Jonathan Cameron <>
  - Add Acked-by,
  - Rebase to v4.17-rc1,

  - Add Reviewed-by, Acked-by,
  - Drop RFC state,
  - Split per subsystem.
 drivers/iio/adc/Kconfig | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
index 15606f237480dacb..88bbcd0e98632273 100644
--- a/drivers/iio/adc/Kconfig
+++ b/drivers/iio/adc/Kconfig
@@ -157,7 +157,6 @@ config AT91_SAMA5D2_ADC
        tristate "Atmel AT91 SAMA5D2 ADC"
        depends on ARCH_AT91 || COMPILE_TEST
        depends on HAS_IOMEM
-       depends on HAS_DMA
          Say yes here to build support for Atmel SAMA5D2 ADC which is
@@ -646,7 +645,6 @@ config SD_ADC_MODULATOR
 config STM32_ADC_CORE
        tristate "STMicroelectronics STM32 adc core"
        depends on ARCH_STM32 || COMPILE_TEST
-       depends on HAS_DMA
        depends on OF
        depends on REGULATOR
        select IIO_BUFFER

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