> As of 2.6.22 the kernel doesn't recognize the i8042 keyboard/mouse
> controller
> on the PegasosPPC. This is because of a feature/bug in the OF device
> tree:
> the "device_type" attribute is an empty string instead of "8042" as the
> kernel expects. This patch (against 2.6.22.1) adds a secondary
> detection
> which looks for a device whose *name* is "8042" if there is no device
> whose
> *type* is "8042".
>
> Signed-off-by: Alan Curry <[EMAIL PROTECTED]>
>
> --- arch/powerpc/kernel/setup-common.c.orig 2007-07-24
> 19:04:17.000000000 -0500
> +++ arch/powerpc/kernel/setup-common.c 2007-07-24 19:06:36.000000000
> -0500
> @@ -487,6 +487,10 @@ int check_legacy_ioport(unsigned long ba
> switch(base_port) {
> case I8042_DATA_REG:
> np = of_find_node_by_type(NULL, "8042");
> + /* Pegasos has no device_type on its 8042 node, look for the
> + * name instead */
> + if (!np)
> + np = of_find_node_by_name(NULL, "8042");
[I know it already got merged, I'm behind on mail, but anyway...]
Could board-specific quirks like this please always include a
check for that board? Or, even better, do a fixup in the
bootwrapper.
In this case the workaround won't likely trigger on the wrong
boards, but "just a little bit" more dangerous workarounds
_will_, and the law of big numbers works against us...
Segher
_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@ozlabs.org
https://ozlabs.org/mailman/listinfo/linuxppc-dev
