[U-Boot] [PATCH] p1022ds: add video support
Detlev Zundel
dzu at denx.de
Wed Sep 22 17:33:35 CEST 2010
Hi,
> On Wed, 2010-09-22 at 10:10 -0500, Timur Tabi wrote:
>> > Is there a technical reason why the initialization has to be in U-Boot?
>>
>> I'll have to re-examine the code. There may be a way to eliminate any such
>> initialization.
>>
> There is a technical reason. The DIU driver needs initialize DVI encoder
> which is on I2C bus. Linux kernel starts to use console device long
> before I2C is available. So it has to be done in U-boot.
Ok, then why not always define CONFIG_VIDEO for this configuration and
let U-Boot initialize _and_ use it? Actually I fail to see why U-Boot
shouldn't use it if the support is there or what am I missing?
Best wishes
Detlev
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