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>
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 @@
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>