Op 22 aug. 2012, om 23:04 heeft Matthias Kaehlcke <matth...@kaehlcke.net> het 
volgende geschreven:

> The TPS65217 chip contains a boost converter and current sinks which can be
> used to drive LEDs for use as backlights. Expose this functionality via the
> backlight API.
> 
> Tested on an AM335x based custom board with a single WLED string, using
> different values for ISEL and FDIM (though it would be hard to tell the
> difference except for the value in WLEDCTRL1). Both instantiation through the
> device tree and by passing platform data have been tested. Testing has been
> done with an Androidized 3.2 kernel from the rowboat project
> 
> This patch is based on the mfd/for-next branch (20120822)
> 
> Changes since v2:
> 
> * adapted to the latest version of the tps65217 mfd driver
> * register backlight as mfd subdevice
> * allocate struct tps65217_bl after validation of the device tree/platform 
> data
> 
> Signed-off-by: Matthias Kaehlcke <matth...@kaehlcke.net>

Work beautifully on a beaglebone + 3" LCD cape, although there's no FB driver 
yet:

Tested-by: Koen Kooi <k...@dominion.thruhere.net>--
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