Hey,
> So I think this is a pcmcia_core problem not _CRS / ACPI.
>
> It was reliably detected by io_probe before.
I think we got hit by the same issue as at commit
7a96e87d6e58a07235a2bc3eff9b093af4937a72 . Could you test this patch,
please?
Best,
Dominik
Author: Dominik Brodowski <[email protected]>
Date: Thu Apr 8 19:23:07 2010 +0200
pcmcia: fix io_probe due to parent (PCI) resources
Similar to commit 7a96e87d, we need to be aware of any parent PCI
device when requesting IO regions, even only for testing
("probing").
Reported-by: Komuro <[email protected]>
Signed-off-by: Dominik Brodowski <[email protected]>
diff --git a/drivers/pcmcia/rsrc_nonstatic.c b/drivers/pcmcia/rsrc_nonstatic.c
index 559069a..1178a82 100644
--- a/drivers/pcmcia/rsrc_nonstatic.c
+++ b/drivers/pcmcia/rsrc_nonstatic.c
@@ -214,7 +214,7 @@ static void do_io_probe(struct pcmcia_socket *s, unsigned
int base,
return;
}
for (i = base, most = 0; i < base+num; i += 8) {
- res = claim_region(NULL, i, 8, IORESOURCE_IO, "PCMCIA ioprobe");
+ res = claim_region(s, i, 8, IORESOURCE_IO, "PCMCIA ioprobe");
if (!res)
continue;
hole = inb(i);
@@ -231,9 +231,14 @@ static void do_io_probe(struct pcmcia_socket *s, unsigned
int base,
bad = any = 0;
for (i = base; i < base+num; i += 8) {
- res = claim_region(NULL, i, 8, IORESOURCE_IO, "PCMCIA ioprobe");
- if (!res)
+ res = claim_region(s, i, 8, IORESOURCE_IO, "PCMCIA ioprobe");
+ if (!res) {
+ if (!any)
+ printk(" excluding");
+ if (!bad)
+ bad = any = i;
continue;
+ }
for (j = 0; j < 8; j++)
if (inb(i+j) != most)
break;
@@ -253,6 +258,7 @@ static void do_io_probe(struct pcmcia_socket *s, unsigned
int base,
}
if (bad) {
if ((num > 16) && (bad == base) && (i == base+num)) {
+ sub_interval(&s_data->io_db, bad, i-bad);
printk(" nothing: probe failed.\n");
return;
} else {
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