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The GPMC controller has the ability to configure the polarity for the wait pin. The current properties do not allow this configuration. This binding directly configures the WAITPIN<X>POLARITY bit in the GPMC_CONFIG register by setting the "ti,wait-pin-polarity" dt-property. Signed-off-by: Benedikt Niedermayr <benedikt.niedermayr@siemens.com> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Roger Quadros <rogerq@kernel.org> Link: https://lore.kernel.org/r/20221102133047.1654449-3-benedikt.niedermayr@siemens.com Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>