drm: exynos: dsi: Add atomic_get_input_bus_fmts
Finding the right input bus format throughout the pipeline is hard so add atomic_get_input_bus_fmts callback and initialize with the proper input format from list of supported output formats. This format can be used in pipeline for negotiating bus format between the DSI-end of this bridge and the other component closer to pipeline components. List of Pixel formats are taken from, AN13573 i.MX 8/RT MIPI DSI/CSI-2, Rev. 0, 21 March 2022 3.7.4 Pixel formats Table 14. DSI pixel packing formats Reviewed-by: Marek Vasut <marex@denx.de> Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
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