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xhci: Allow xHCI drivers to be built as separate modules

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Instead of building all of the xHCI code into a single module, separate
it out into the core (xhci-hcd), PCI (xhci-pci, now selected by the new
config option CONFIG_USB_XHCI_PCI), and platform (xhci-plat) drivers.
Also update the PCI/platform drivers with module descriptions/licenses
and have them register their respective drivers in their initcalls.

Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Andrew Bresticker
2014-10-03 11:35:29 +03:00
committed by Greg Kroah-Hartman
parent 436e8c7d45
commit 29e409f0f7
6 changed files with 25 additions and 51 deletions
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22
drivers/usb/host/xhci.c
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@@ -4982,18 +4982,6 @@ MODULE_LICENSE("GPL");
static int __init xhci_hcd_init(void)
{
int retval;
retval = xhci_register_pci();
if (retval < 0) {
pr_debug("Problem registering PCI driver.\n");
return retval;
}
retval = xhci_register_plat();
if (retval < 0) {
pr_debug("Problem registering platform driver.\n");
goto unreg_pci;
}
/*
* Check the compiler generated sizes of structures that must be laid
* out in specific ways for hardware access.
@@ -5012,15 +5000,5 @@ static int __init xhci_hcd_init(void)
/* xhci_run_regs has eight fields and embeds 128 xhci_intr_regs */
BUILD_BUG_ON(sizeof(struct xhci_run_regs) != (8+8*128)*32/8);
return 0;
unreg_pci:
xhci_unregister_pci();
return retval;
}
module_init(xhci_hcd_init);
static void __exit xhci_hcd_cleanup(void)
{
xhci_unregister_pci();
xhci_unregister_plat();
}
module_exit(xhci_hcd_cleanup);