CONFIG_ISA_BUS was used only as a dependency for a single Industrial IO
driver: CONFIG_CIO_DAC ("Measurement Computing CIO-DAC IIO driver"). At
least grepping the kernel source for "ISA_BUS" did not provide any other
meaningful results.
There are more configuration options that select CONFIG_ISA_BUS_API, but
did not depend on CONFIG_ISA_BUS. Most of these are for Industrial IO and
GPIO drivers.
Signed-off-by: Mateusz Jończyk <mat.jonczyk@o2.pl>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: x86@kernel.org
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: William Breathitt Gray <vilhelm.gray@gmail.com>
Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com>
---
v2: add "Acked by: William Breathitt Gray"
arch/x86/Kconfig | 11 -----------
drivers/iio/dac/Kconfig | 2 +-
2 files changed, 1 insertion(+), 12 deletions(-)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 4612c356da4c..c8218d310d55 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -2759,17 +2759,6 @@ config PCI_CNB20LE_QUIRK
You should say N unless you know you need this.
-config ISA_BUS
- bool "ISA bus support on modern systems" if EXPERT
- help
- Expose ISA bus device drivers and options available for selection and
- configuration. Enable this option if your target machine has an ISA
- bus. ISA is an older system, displaced by PCI and newer bus
- architectures -- if your target machine is modern, it probably does
- not have an ISA bus.
-
- If unsure, say N.
-
# x86_64 have no ISA slots, but can have ISA-style DMA.
config ISA_DMA_API
bool "ISA-style DMA support" if (X86_64 && EXPERT)
diff --git a/drivers/iio/dac/Kconfig b/drivers/iio/dac/Kconfig
index 80521bd28d0f..e32245c013b0 100644
--- a/drivers/iio/dac/Kconfig
+++ b/drivers/iio/dac/Kconfig
@@ -275,7 +275,7 @@ config AD8801
config CIO_DAC
tristate "Measurement Computing CIO-DAC IIO driver"
- depends on X86 && (ISA_BUS || PC104)
+ depends on X86
select ISA_BUS_API
help
Say yes here to build support for the Measurement Computing CIO-DAC
--
2.25.1