[PATCH] powerpc/chrp: Fix detection of Python PCI host bridge on IBM CHRPs

Benjamin Herrenschmidt benh at kernel.crashing.org
Tue Oct 14 17:14:09 EST 2008


The detection of the IBM "Python" PCI host bridge on IBM CHRP
machines such as old RS6000 was broken when we changed
of_device_is_compatible() from strncasecmp to strcasecmp (dropped
the "n" variant) due to the way IBM encodes the chip version.

We fix that by instead doing a match on the model property like
we do for others bridges in that file. It should be good enough
for those machines. If yours is still broken, let me know.

Signed-off-by: Benjamin Herrenschmidt <benh at kernel.crashing.org>
---

 arch/powerpc/platforms/chrp/pci.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- linux-work.orig/arch/powerpc/platforms/chrp/pci.c	2008-10-14 16:37:05.000000000 +1100
+++ linux-work/arch/powerpc/platforms/chrp/pci.c	2008-10-14 17:05:09.000000000 +1100
@@ -266,7 +266,7 @@ chrp_find_bridges(void)
 		model = of_get_property(dev, "model", NULL);
 		if (model == NULL)
 			model = "<none>";
-		if (of_device_is_compatible(dev, "IBM,python")) {
+		if (strncmp(model, "IBM, Python", 11) == 0) {
 			setup_python(hose, dev);
 		} else if (is_mot
 			   || strncmp(model, "Motorola, Grackle", 17) == 0) {



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