diff options
| author | Kumar Gala <galak@kernel.crashing.org> | 2006-04-11 10:07:16 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-06-21 15:04:09 -0700 |
| commit | 01cced250722d22d99c2342979490f93ca886521 (patch) | |
| tree | b29b395305836a0f3690a69173e1df2a2f0ecf4f /drivers/usb/host/ehci-hcd.c | |
| parent | df47e5330b0f5decb0a5736e9a81fff49d46d151 (diff) | |
[PATCH] USB: allow multiple types of EHCI controllers to be built as modules
In some systems we may have both a platform EHCI controller and PCI EHCI
controller. Previously we couldn't build the EHCI support as a module due
to conflicting module_init() calls in the code.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host/ehci-hcd.c')
| -rw-r--r-- | drivers/usb/host/ehci-hcd.c | 48 |
1 files changed, 44 insertions, 4 deletions
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 79f2d8b9bfb6..7d7c97cf9b2f 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -889,19 +889,59 @@ MODULE_LICENSE ("GPL"); #ifdef CONFIG_PCI #include "ehci-pci.c" -#define EHCI_BUS_GLUED +#define PCI_DRIVER ehci_pci_driver #endif #ifdef CONFIG_PPC_83xx #include "ehci-fsl.c" -#define EHCI_BUS_GLUED +#define PLATFORM_DRIVER ehci_fsl_driver #endif #ifdef CONFIG_SOC_AU1X00 #include "ehci-au1xxx.c" -#define EHCI_BUS_GLUED +#define PLATFORM_DRIVER ehci_hcd_au1xxx_driver #endif -#ifndef EHCI_BUS_GLUED +#if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) #error "missing bus glue for ehci-hcd" #endif + +static int __init ehci_hcd_init(void) +{ + int retval = 0; + + pr_debug("%s: block sizes: qh %Zd qtd %Zd itd %Zd sitd %Zd\n", + hcd_name, + sizeof(struct ehci_qh), sizeof(struct ehci_qtd), + sizeof(struct ehci_itd), sizeof(struct ehci_sitd)); + +#ifdef PLATFORM_DRIVER + retval = platform_driver_register(&PLATFORM_DRIVER); + if (retval < 0) + return retval; +#endif + +#ifdef PCI_DRIVER + retval = pci_register_driver(&PCI_DRIVER); + if (retval < 0) { +#ifdef PLATFORM_DRIVER + platform_driver_unregister(&PLATFORM_DRIVER); +#endif + } +#endif + + return retval; +} +module_init(ehci_hcd_init); + +static void __exit ehci_hcd_cleanup(void) +{ +#ifdef PLATFORM_DRIVER + platform_driver_unregister(&PLATFORM_DRIVER); +#endif +#ifdef PCI_DRIVER + pci_unregister_driver(&PCI_DRIVER); +#endif +} +module_exit(ehci_hcd_cleanup); + |