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powerpc: Fix for Pegasos keyboard and mouse 

[See http://lists.ozlabs.org/pipermail/linuxppc-dev/2010-October/086424.html
and followups. Part of the commit message is directly copied from that.]

Commit 540c6c392f tries to find i8042 IRQs in
the device-tree but doesn't fall back to the old hardcoded 1 and 12 in all
failure cases.

Specifically, the case where the device-tree contains nothing matching
pnpPNP,303 or pnpPNP,f03 doesn't seem to be handled well. It sort of falls
through to the old code, but leaves the IRQs set to 0.

Signed-off-by: Gabriel Paubert <paubert@iram.es>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Gabriel Paubert 2011-05-13 01:03:13 +00:00 committed by Benjamin Herrenschmidt
parent 03bf469add
commit 2c78027a62
1 changed files with 4 additions and 0 deletions
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4
arch/powerpc/kernel/setup-common.c
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@ -602,6 +602,10 @@ int check_legacy_ioport(unsigned long base_port)
* name instead */
if (!np)
np = of_find_node_by_name(NULL, "8042");
if (np) {
of_i8042_kbd_irq = 1;
of_i8042_aux_irq = 12;
}
break;
case FDC_BASE: /* FDC1 */
np = of_find_node_by_type(NULL, "fdc");