[PowerPC] [PASEMI] Issue with the identification of ATA drives after the of/irq updates 2024-05-29

[Christian Zigotzky]

[snip]

My earlier request for valuable debug information still stands. But
while you're at it, can you please give the following hack a go?

   M.

--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -282,8 +282,10 @@ int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq)
               oldimap = imap;
             imap = of_irq_parse_imap_parent(oldimap, imaplen, out_irq);
-            if (!imap)
-                goto fail;
+            if (!imap) {
+                match = 0;
+                break;
+            }
               match &= of_device_is_available(out_irq->np);
             if (match)

This may not be the final workaround even if it solves your boot
problem, but will at least give us a hint at what is going wrong.

I have the fuzzy feeling that we may be able to lob this broken system
as part of the of_irq_imap_abusers[] array, which would solve things
pretty "neatly".

   M.

- - - -

We tested this patch yesterday and it solves the boot problem.

Thanks

- - - -

I am sorry our tester was wrong and has reported, that this kernel doesn’t boot.

Link: https://forum.hyperion-entertainment.com/viewtopic.php?p=58627#p58627

Sorry