And add an extensive comment relating the history of the upside-down
handling in this driver.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Tested-by: NArvydas Sidorenko <asido4@gmail.com>
Thanks-to: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>