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atmel_lcdfb: suspend/resume support

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Teach atmel_lcdfb driver how to suspend/resume.

Note that the backlight control should probably do more of the same stuff:
turning off display power (more than just the backlight) and stopping the
clocks (and dma to drive the no-longer-seen display).  No point in wasting
power to generate images that can't be observed, after all...

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Hans-Christian Egtvedt <hcegtvedt@atmel.com>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Andrew Victor <avictor.za@gmail.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
David Brownell
2008-04-28 02:15:20 -07:00
committed by Linus Torvalds
parent 01d3a5e7fa
commit cf19a37e06
2 changed files with 35 additions and 2 deletions
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include/video/atmel_lcdc.h
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@@ -39,6 +39,7 @@ struct atmel_lcdfb_info {
u8 bl_power;
#endif
bool lcdcon_is_backlight;
u8 saved_lcdcon;
u8 default_bpp;
unsigned int default_lcdcon2;