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Re: LCD and backlight on h3600: msg#00004

handhelds.linux.kernel

Subject: Re: LCD and backlight on h3600

On Sun, 2005-12-04 at 16:28 +0100, Alessandro GARDICH wrote:
> I have some doubt on how to match the backlight functionality offered by
> the backlight class of devices and the ipaq h3600 hardware.
>
> some points :
> - the power on/off of backlight and LCD is managed via EGPIO on SA1110
> - the brightness level is managed via the atmel micro
>
> At now i have write 2 platform devices, h3600-bl (backlight) and
> h3600-micro (comunication with micro), and i have to write h3600-lcd to
> control on/off of LCD power
>
> my doubt :
> - what should be the parent of h3600-bl ??? h3600-micro or sa11x0-fb

Or make h3600-micro the parent of h3600-bl and sa11x0-fb the parent of
h3600-micro?

> - can i 'split' backlight control the on-ff in the h3600.c using EGPIO
> and brightness level on micro.c using the micro ? have sense to do it in
> this way ?

If I understand that correctly, I think it sounds reasonable.

Richard


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