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>
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@ -66,7 +66,9 @@ registers; another might implement it by delegating through abstractions
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used for several very different kinds of GPIO controller.
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used for several very different kinds of GPIO controller.
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That said, if the convention is supported on their platform, drivers should
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That said, if the convention is supported on their platform, drivers should
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use it when possible:
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use it when possible. Platforms should declare GENERIC_GPIO support in
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Kconfig (boolean true), which multi-platform drivers can depend on when
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using the include file:
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#include <asm/gpio.h>
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#include <asm/gpio.h>
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