iio: Change ISA_BUS_API dependency to selection

The ISA_BUS_API Kconfig option enables the compilation of the ISA bus
driver. The ISA bus driver does not perform any hardware interaction,
and is instead just a thin layer of software abstraction to eliminate
boilerplate code common to ISA-style device drivers. Since ISA_BUS_API
has no dependencies and does not jeopardize the integrity of the system
when enabled, drivers should select it when the ISA bus driver
functionality is needed.

Cc: Hartmut Knaack <knaack.h@gmx.de>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
index 72bc2b7..aa33318 100644 (file)
--- a/drivers/iio/adc/Kconfig
+++ b/drivers/iio/adc/Kconfig
@@ -698,7 +698,8 @@ config STM32_DFSDM_ADC
 
 config STX104
        tristate "Apex Embedded Systems STX104 driver"
-       depends on PC104 && X86 && ISA_BUS_API
+       depends on PC104 && X86
+       select ISA_BUS_API
        select GPIOLIB
        help
          Say yes here to build support for the Apex Embedded Systems STX104

diff --git a/drivers/iio/counter/Kconfig b/drivers/iio/counter/Kconfig
index 474e1ac..bf1e559 100644 (file)
--- a/drivers/iio/counter/Kconfig
+++ b/drivers/iio/counter/Kconfig
@@ -7,7 +7,8 @@ menu "Counters"
 
 config 104_QUAD_8
        tristate "ACCES 104-QUAD-8 driver"
-       depends on PC104 && X86 && ISA_BUS_API
+       depends on PC104 && X86
+       select ISA_BUS_API
        help
          Say yes here to build support for the ACCES 104-QUAD-8 quadrature
          encoder counter/interface device family (104-QUAD-8, 104-QUAD-4).

diff --git a/drivers/iio/dac/Kconfig b/drivers/iio/dac/Kconfig
index 965d5c0..76db076 100644 (file)
--- a/drivers/iio/dac/Kconfig
+++ b/drivers/iio/dac/Kconfig
@@ -195,7 +195,8 @@ config AD7303
 
 config CIO_DAC
        tristate "Measurement Computing CIO-DAC IIO driver"
-       depends on X86 && ISA_BUS_API
+       depends on X86 && (ISA_BUS || PC104)
+       select ISA_BUS_API
        help
          Say yes here to build support for the Measurement Computing CIO-DAC
          analog output device family (CIO-DAC16, CIO-DAC08, PC104-DAC06). The