drm/vc4: Use .pixel_order instead of custom .flip_cbcr
The hardware has enums for altering the Cr and Cb order, so use this instead of having a flag which swaps the order the pointers are presented to the hardware (that only worked for 3 plane formats anyway). Explicitly sets .pixel_order in each case, rather than relying on then default XYCBCR order being a value 0. Signed-off-by: NDave Stevenson <dave.stevenson@raspberrypi.org> Signed-off-by: NEric Anholt <eric@anholt.net> Reviewed-by: NEric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/563872b69c1e5df142cb15ebfca7f20056b8a64c.1510841336.git.dave.stevenson@raspberrypi.org
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