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2015-10-02gpio: add DT bindings for existing consumer flagsLinus Walleij1-0/+12
It is customary for GPIO controllers to support open drain/collector and open source/emitter configurations. Add standard GPIO line flags to account for this and augment the documentation to say that these are the most generic bindings. Several people approached me to add new flags to the lines, and this makes sense, but let's first bind up the most common cases before we start to add exotic stuff. Thanks to H. Nikolaus Schaller for ideas on how to encode single-ended wiring such as open drain/source and open collector/emitter. Cc: Tony Lindgren <tony@atomide.com> Cc: Grygorii Strashko <grygorii.strashko@ti.com> Cc: H. Nikolaus Schaller <hns@goldelico.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-04-05ARM: dt: add header to define GPIO flagsStephen Warren1-0/+15
Many GPIO device tree bindings use the same flags. Create a header to define those. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Rob Herring <rob.herring@calxeda.com>

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