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[PATCH] add CONFIG_GENERIC_GPIO

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Most drivers using GPIOs already know they are running on a system that
supports the generic GPIO calls, because of other platform dependencies.
But the generic GPIO-based LED and input button drivers can't know that.

So this patch adds a Kconfig hook, GENERIC_GPIO, to mark the platforms
where <asm/gpio.h> will do the right thing.  Currently that's a bunch of
ARMs, and AVR32; more are on the way.

It also fixes a dependency bug for the gpio button input driver; it was
wrong to start with, now it covers all platforms with GENERIC_GPIO.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Richard Purdie <rpurdie@rpsys.net>
Cc: Arnaud Patard <arnaud.patard@rtp-net.org>
Cc: <raph@8d.com>
Cc: <msvoboda@ra.rockwell.com>
Cc: pHilipp Zabel <philipp.zabel@gmail.com>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
David Brownell
2007-03-05 00:30:18 -08:00
committed by Linus Torvalds
parent 1ad7c31107
commit 0a938b9768
3 changed files with 19 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/input/keyboard/Kconfig
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@@ -215,14 +215,16 @@ config KEYBOARD_AAED2000
module will be called aaed2000_kbd.
config KEYBOARD_GPIO
tristate "Buttons on CPU GPIOs (PXA)"
depends on (ARCH_SA1100 || ARCH_PXA || ARCH_S3C2410)
tristate "GPIO Buttons"
depends on GENERIC_GPIO
help
This driver implements support for buttons connected
directly to GPIO pins of SA1100, PXA or S3C24xx CPUs.
to GPIO pins of various CPUs (and some other chips).
Say Y here if your device has buttons connected
directly to GPIO pins of the CPU.
directly to such GPIO pins. Your board-specific
setup logic must also provide a platform device,
with configuration data saying which GPIOs are used.
To compile this driver as a module, choose M here: the
module will be called gpio-keys.