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This extends the flags that can be used in GPIO specifiers to indicate that no bias is intended in the pin. Signed-off-by: Nuno Sá <nuno.sa@analog.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>