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Saravana Kannan authored
Not all DT bindings are mandatory bindings. Add support for optional DT bindings and mark iommus, iommu-map, dmas as optional DT bindings. Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Saravana Kannan <saravanak@google.com> Link: https://lore.kernel.org/r/20210205222644.2357303-5-saravanak@google.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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