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* eeepc: rfkill on 900A defunct
@ 2010-11-24 14:53 Jiri Slaby
  2010-11-24 14:57 ` Matthew Garrett
  2010-11-24 20:18 ` Matthew Garrett
  0 siblings, 2 replies; 11+ messages in thread
From: Jiri Slaby @ 2010-11-24 14:53 UTC (permalink / raw)
  To: mjg; +Cc: corentincj, acpi4asus-user, platform-driver-x86, LKML

Hi,

there is a 900A model out there with wifi at the 2nd bus:
02:00.0 Ethernet controller [0200]: Atheros Communications Inc. AR5001
Wireless Network Adapter [168c:001c] (rev 01)

but without hotplug support (pciehp cannot be bound to it). However the
eeepc-laptop driver expects the wifi on the 1st bus (pci_find_bus(0,
1)), so it operates on a NIC on this machine instead of wifi.

Changing the code to pci_find_bus(0, 2) indeed fixes the problem, but I
see no way how to determine when to do this. model == "900A" seems to be
wrong, because there are other 900A devices which work OK with bus == 1.

Any ideas?

lspci -vvnnxxx:
https://bugzillafiles.novell.org/attachment.cgi?id=370529
dmidecode:
https://bugzillafiles.novell.org/attachment.cgi?id=401633
dmesg:
https://bugzillafiles.novell.org/attachment.cgi?id=370538

The workaround for such machines:
--- a/drivers/platform/x86/eeepc-laptop.c
+++ b/drivers/platform/x86/eeepc-laptop.c
@@ -588,7 +588,7 @@ static void eeepc_rfkill_hotplug(struct eeepc_laptop
*eeepc)
        mutex_lock(&eeepc->hotplug_lock);

        if (eeepc->hotplug_slot) {
-               bus = pci_find_bus(0, 1);
+               bus = pci_find_bus(0, 2);
                if (!bus) {
                        pr_warning("Unable to find PCI bus 1?\n");
                        goto out_unlock;
@@ -714,7 +714,7 @@ static struct hotplug_slot_ops
eeepc_hotplug_slot_ops = {
 static int eeepc_setup_pci_hotplug(struct eeepc_laptop *eeepc)
 {
        int ret = -ENOMEM;
-       struct pci_bus *bus = pci_find_bus(0, 1);
+       struct pci_bus *bus = pci_find_bus(0, 2);

        if (!bus) {
                pr_err("Unable to find wifi PCI bus\n");

thanks,
-- 
js
suse labs

^ permalink raw reply	[flat|nested] 11+ messages in thread

end of thread, other threads:[~2011-04-19 13:53 UTC | newest]

Thread overview: 11+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2010-11-24 14:53 eeepc: rfkill on 900A defunct Jiri Slaby
2010-11-24 14:57 ` Matthew Garrett
2010-11-24 20:18 ` Matthew Garrett
2010-11-26 13:01   ` Woody Suwalski
2010-12-13 10:19   ` Jiri Slaby
2011-02-28  9:49   ` Jiri Slaby
2011-03-08 10:06     ` Jiri Slaby
2011-03-08 10:22       ` Corentin Chary
2011-03-08 10:51         ` Jiri Slaby
2011-03-09 12:50           ` Woody Suwalski
2011-04-19 13:53             ` [ping] " Jiri Slaby

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