Hi Tomi,
On 09/15/2011 07:47 AM, Tomi Valkeinen wrote:
Hi,
I'm a bit confused how a backlight device and a fb device should be
"connected".
In this particular case the OMAP 4430SDP board has an LCD panel
controlled by omapfb (and omapdss on the lower level) with a backlight
controlled by pwm_backlight (and twl6030-pwm on the lower level).
Both omapfb and pwm_backlight work fine, but they don't know anything
about each other, so, for example, blanking the fb via omapfb leaves the
backlight on.
Is there something I'm missing, or is the only solution to have some
custom code to connect the fb and the bl, and handle it that way?
I don't know anything about backlight but recently there was a patch that
affected the same area you mention so it might give an idea
"[PATCH] FB: add early fb blank feature."
http://marc.info/?l=linux-fbdev&m1554458720940&w=2
Best regards,
Florian Tobias Schandinat
Tomi
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