ohci: Add support for OHCI controller on the of_platform bus

PPC embedded systems can have a ohci controller builtin. In the
new model, it will end up as a driver on the of_platform bus,
this patches takes care of them.

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 20 insertions, 0 deletions

diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 3f80003b40bd..8baecbdf0621 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -914,8 +914,14 @@ MODULE_LICENSE ("GPL");
 #endif
 
 
+#ifdef CONFIG_USB_OHCI_HCD_PPC_OF
+#include "ohci-ppc-of.c"
+#define OF_PLATFORM_DRIVER      ohci_hcd_ppc_of_driver
+#endif
+
 #if     !defined(PCI_DRIVER) &&         \
         !defined(PLATFORM_DRIVER) &&    \
+        !defined(OF_PLATFORM_DRIVER) && \
         !defined(SA1111_DRIVER)
 #error "missing bus glue for ohci-hcd"
 #endif
@@ -939,6 +945,13 @@ static int __init ohci_hcd_mod_init(void)
         ls++;
 #endif
 
+#ifdef OF_PLATFORM_DRIVER
+        retval = of_register_platform_driver(&OF_PLATFORM_DRIVER);
+        if (retval < 0)
+                goto error;
+        ls++;
+#endif
+
 #ifdef SA1111_DRIVER
         retval = sa1111_driver_register(&SA1111_DRIVER);
         if (retval < 0)
@@ -961,6 +974,10 @@ error:
         if (ls--)
                 platform_driver_unregister(&PLATFORM_DRIVER);
 #endif
+#ifdef OF_PLATFORM_DRIVER
+        if (ls--)
+                of_unregister_platform_driver(&OF_PLATFORM_DRIVER);
+#endif
 #ifdef SA1111_DRIVER
         if (ls--)
                 sa1111_driver_unregister(&SA1111_DRIVER);
@@ -977,6 +994,9 @@ static void __exit ohci_hcd_mod_exit(void)
 #ifdef SA1111_DRIVER
         sa1111_driver_unregister(&SA1111_DRIVER);
 #endif
+#ifdef OF_PLATFORM_DRIVER
+        of_unregister_platform_driver(&OF_PLATFORM_DRIVER);
+#endif
 #ifdef PLATFORM_DRIVER
         platform_driver_unregister(&PLATFORM_DRIVER);
 #endif