[maemo-developers] Does anyone know the mechanism in Nokia's LCD driver?

From: Igor Stoppa igor.stoppa at nokia.com
Date: Tue Jan 13 12:05:29 EET 2009
Hi,
On Tue, 2009-01-13 at 18:06 +0800, ext Huang Gao (Gmail) wrote:
> Hi, Igor Stoppa:
> 	Thank you for your reply!
> 	So can I understand that this hardware FB is not contained in SDRAM
> or SRAM, and LCD will refresh itself from this hardware FB by its controller
> automatically, without the help of OMAP DMA channel?

I'm in no way a display guy but iirc there are 2 modes for refresh:
-auto: whatever is written to the framebuffer goes through straight to
the LCD
-manual: the image needs to be flushed to the LCD

If you are interested, you can check it from the kernel source files.

-- 

Cheers, Igor

---

Igor Stoppa
Maemo Software - Nokia Devices R&D - Helsinki

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