[PATCH] yenta: auto-tune EnE bridges for CardBus cards

Echo Audio cardbus products are known to be incompatible with EnE bridges.
in order to maybe solve the problem a EnE specific test bit has to be set,
another cleared...but other setups have a good chance to break when just
forcing the bits.  so do the whole thingy automatically.

The patch adds a hook in cb_alloc() that allows special tuning for the
different chipsets.  for ene just match the Echo products and set/clear the
test bits, defaults to do the same thing as w/o the patch to not break
working setups.

Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch>
Cc: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/pcmcia/cardbus.c b/drivers/pcmcia/cardbus.c
index 1d755e20880c..3f6d51d11374 100644
--- a/drivers/pcmcia/cardbus.c
+++ b/drivers/pcmcia/cardbus.c
@@ -228,6 +228,11 @@ int cb_alloc(struct pcmcia_socket * s)
         pci_bus_size_bridges(bus);
         pci_bus_assign_resources(bus);
         cardbus_assign_irqs(bus, s->pci_irq);
+
+        /* socket specific tune function */
+        if (s->tune_bridge)
+                s->tune_bridge(s, bus);
+
         pci_enable_bridges(bus);
         pci_bus_add_devices(bus);