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The era of hand-rolled HIWORD_UPDATE macros is over, at least for those drivers that use constant masks. Remove rockchip_lvds.h's own HIWORD_UPDATE macro, and replace all instances of it with hw_bitfield.h's FIELD_PREP_WM16 macro, which gives us more error checking. For the slightly-less-trivial case of the 2-bit width instance, the results were checked during development to match all possible input values (0 to 3, inclusive). Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Yury Norov (NVIDIA) <yury.norov@gmail.com>