Minor tweaks to document the swap register and make the documentation
match the struct ordering
Signed-off-by: NKieran Bingham <kieran@bingham.xyz>
Reviewed-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>