linux-kernel - [PATCH v2 4/5] isa: Remove ISA_BUS_API selection for ISA

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Message-Id: <bc33320887f448b772004e7c5d97322abb8cae0b.1514578085.git.vilhelm.gray@gmail.com>
Date:   Fri, 29 Dec 2017 15:14:46 -0500
From:   William Breathitt Gray <vilhelm.gray@...il.com>
To:     linus.walleij@...aro.org
Cc:     mail@...iej.szmigiero.name, linux@...ck-us.net,
        linux-gpio@...r.kernel.org, linux-iio@...r.kernel.org,
        linux-watchdog@...r.kernel.org, linux-kernel@...r.kernel.org,
        William Breathitt Gray <vilhelm.gray@...il.com>
Subject: [PATCH v2 4/5] isa: Remove ISA_BUS_API selection for ISA_BUS

ISA_BUS_API is selected by drivers themselves when necessary. The
ISA_BUS Kconfig option is now simply a mask for true ISA device drivers
and relevant configuration. For now, the ISA_BUS Kconfig option is only
available for X86, but may be added for other arch builds in the future
if the need arises.

Signed-off-by: William Breathitt Gray <vilhelm.gray@...il.com>
---
 arch/x86/Kconfig | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 8eed3f94bfc7..5478c5beb302 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -2608,11 +2608,13 @@ config PCI_CNB20LE_QUIRK
 source "drivers/pci/Kconfig"
 
 config ISA_BUS
-	bool "ISA-style bus support on modern systems" if EXPERT
-	select ISA_BUS_API
+	bool "ISA bus support on modern systems" if EXPERT
 	help
-	  Enables ISA-style drivers on modern systems. This is necessary to
-	  support PC/104 devices on X86_64 platforms.
+	  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.
 
-- 
2.15.1