This patch adds support for powering on and off the Samsung LTV350QV LCD
panel via SPI.  The driver responds to framebuffer power management, it
powers off the panel on reboot/halt/poweroff.  It can also be controlled
through sysfs.  The panel is powered up when the module is loaded, and off
when the module is unloaded.  Verified on AVR32 STK1000.
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>