[media] v4l2-dv-timings: add v4l2_print_dv_timings helper
Drivers often have to log the contents of a dv_timings struct. Adding this helper will make it easier for drivers to do so. Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com> Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
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