path: root/Documentation/gpio.txt
diff options
authorDavid Brownell <david-b@pacbell.net>2007-05-11 05:22:17 (GMT)
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-11 15:29:32 (GMT)
commit32993b793fb07784fd1380004f5b34f31f9105d5 (patch)
tree8fc3f407480d8e18c67bf55b559ac74bd635481b /Documentation/gpio.txt
parent7faaa5f0bf4db6ac4908038e2139adc46c165ff4 (diff)
Documentation/gpio.txt mentions GENERIC_GPIO
Documentation/gpio.txt should mention the Kconfig GENERIC_GPIO flag, for platforms to declare when relevant. This should help minimize goofs like omitting it, or not depending on it when needed. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/gpio.txt')
1 files changed, 3 insertions, 1 deletions
diff --git a/Documentation/gpio.txt b/Documentation/gpio.txt
index f8528db..e8be0ab 100644
--- a/Documentation/gpio.txt
+++ b/Documentation/gpio.txt
@@ -66,7 +66,9 @@ registers; another might implement it by delegating through abstractions
used for several very different kinds of GPIO controller.
That said, if the convention is supported on their platform, drivers should
-use it when possible:
+use it when possible. Platforms should declare GENERIC_GPIO support in
+Kconfig (boolean true), which multi-platform drivers can depend on when
+using the include file:
#include <asm/gpio.h>

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