DFP support for kernel radeonfb.c added

Benjamin Herrenschmidt benh at kernel.crashing.org
Thu Nov 15 08:24:15 EST 2001


>No, I mean using i2c to grab it.

I think OF uses the Radeon "GPIO" registers to probe the panel type based
on a wired panel ID and a table of EDIDs in the driver. At least, it did
it that way on mach64. I dumped a disassembly of the Rage M3 (r128 base)
MacOS 9 driver of my Pismo and started tracing it, it seem to play with
GPIOs as well. I didn't yet figure out the exact algorithm though.

Ben.


** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/





More information about the Linuxppc-dev mailing list