sh: add init member to pci_channel data

This patch adds an init callback to struct pci_channel and makes sure
it is initialized properly. Code is added to call this init function
from pcibios_init(). Return values are adjusted and a warning is is
printed if init fails.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/drivers/pci/ops-rts7751r2d.c b/arch/sh/drivers/pci/ops-rts7751r2d.c
index e4208a6..fe5a231 100644
--- a/arch/sh/drivers/pci/ops-rts7751r2d.c
+++ b/arch/sh/drivers/pci/ops-rts7751r2d.c
@@ -47,7 +47,7 @@
 extern struct pci_ops sh7751_pci_ops;
 
 struct pci_channel board_pci_channels[] = {
-	{ &sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff },
+	{ sh7751_pci_init, &sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff },
 	{ NULL, NULL, NULL, 0, 0 },
 };
 EXPORT_SYMBOL(board_pci_channels);