Re: [Linux-fbdev-devel] [PATCH]: EDID parser

Benjamin Herrenschmidt
2003-04-02T22:08:29Z

> Let really good. I applied it to my local tree but haven't passed it to BK
> fbdev yet. The only thing I like to see changed is get_EDID. At present it
> accepts a struct pci_dev. Now for generic support for the intel platform
> we can get this from the BIOS. You already have a patch that does this.
> It doesn't need a struct pci_dev in this case. It is possible to get this
> info from the i2c bus but I never seen any drivers do this. What data would
> we have to pass in get the EDID inforamtion? So the question is how
> generic will get_EDID end up being or will we have to have driver specfic
> hooks since I don't pitcure i2c approaches being the same for each video
> card. Petr didn't you attempt this with the matrox driver at one time?

get_EDID() has to be a driver specific hook

EDID via BIOS is a way to get it, BIOS emulation in userland is another,
on PPC, I can retreive it from the firmware device-tree in a different
way with some cards, and finally, I plan to implement i2c sooner or
later with some drivers...

Ben.