atmel_lcdfb: Use proper blanking on negative contrast polarity

Browse source

If used with negative polarity the PWM unit cannot be disabled. This would
result in a full contrast screen.
Instead let the PWM unit enabled using 0x0 as compare value which darkens
the display.
In result no power saving is possible if inverted contrast polarity
is used.

Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>

...

This commit is contained in:

Alexander Stein 2011-10-05 09:59:58 +02:00 • committed by Florian Tobias Schandinat

parent 5d910426a6

commit acfdc2e1bd

1 changed files with 4 additions and 1 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

5

drivers/video/atmel_lcdfb.c

View file