video: atmel_lcdfb: introduce atmel_lcdfb_power_control

to simplify the check on the presence of the callback

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Jean-Christophe PLAGNIOL-VILLARD 2013-04-11 17:54:04 +08:00 • committed by Tomi Valkeinen
commit 42110e91de