[PATCH 3/3] glamo_fb: Implement screen blanking

Andy Green andy at openmoko.com
Thu Oct 9 00:07:59 CEST 2008


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Harald Welte wrote:
> Hi again,
> 
> On Wed, Oct 08, 2008 at 09:52:55PM +0100, Andy Green wrote:
>  
>> Harald Welte wrote:
>>> This patch implements fb_blank() for the glamo-fb driver, which switches off
>>> the pixel clock (DCLK) for power saving.
>> These and the other patches from today are now on stable, stable-2.6.26
>> and stable-tracking, thanks a lot for the work.
> 
> Thanks for merging them. Some other things on my TODO list are:
> * glamo kernel hardware scrolling+cursor support

Andrzej has made a start on the hard cursor stuff in there already.

> * see if the touchscreen can work with much less [reported] samples
>   per second

I implemented a bunch of stuff around that it would be great to get your
opinion on, they're not in stable already because it was suggested
upstream folks will only hate on them.  But, it's really effective:

http://git.openmoko.org/?p=kernel.git;a=commitdiff;h=4902116f6fb8c09ce32249673a17efa4aa83897f

It's on / against andy-tracking.

> * find a solution how to suppress input events from unblanking the screen
>   through X
> * do some experiments with HWECC and see why the speed gains are not
>   bigger (see zeckes existing work on this)

Sounds like an interesting bunch of stuff.

- -Andy
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