OMAP2430 SDP boot broken after Linus' rmk merge

Tomi Valkeinen tomi.valkeinen at
Thu Jul 25 02:50:13 EDT 2013

On 25/07/13 09:40, Tomi Valkeinen wrote:
> On 24/07/13 17:52, Russell King - ARM Linux wrote:
>> I also continue to be disappointed by the lack of things working on the
>> 4430 - it's been a number of years now and _still_ the on-board LCDs do
>> not work.  People have tried to blame that on hardware faults and the
>> like, but they're just being idiotic when they say stuff like that.  It
>> can't be hardware faults when the kernel supplied with the board is able
>> to make them work to the extent that userspace can play back video on all
>> three output devices simultaneously, without hiccup or any imperfection.
>> I don't know whether it's just that the backlight support isn't working
>> or what - because any information on the 4430 seems to be a tightly
>> controlled secret that only a few select people are permitted to know
>> about.  As far as I'm concerned, much of the hardware is a black box to
>> me.
> The 4430SDP's backlight hasn't been working in the mainline due to
> missing support from the TWL driver. But we finally did get that in for
> 3.10 (or maybe 3.9), and booting 3.10 non-DT kernel brings up the
> backlights. However, the BL doesn't work yet with DT boot, so again with
> 3.11, with no board files, the BL is out... Sigh.

Ah, sorry, I take that back. Backlight seems to be working fine with 3.11.


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