On Tue, 2007-07-24 at 21:28 -0400, Alan Curry wrote:
> 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]>
Acked-by: Benjamin Herrenschmidt <[email protected]>
Note, if there's a volunteer, we could probably turn that code into a
nice table lookup.
Cheers,
Ben.
> --- 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");
> break;
> case FDC_BASE: /* FDC1 */
> np = of_find_node_by_type(NULL, "fdc");
>
> _______________________________________________
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> [email protected]
> https://ozlabs.org/mailman/listinfo/linuxppc-dev
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