USB: fix Kconfig logic for USB_UHCI_HCD

The Kconfig settings for uhci-hcd are too permissive; they allow the
driver to be built without any bus-glue modules configured
(USB_UHCI_HCD enabled, PCI disabled, SPARC_LEON disabled, ARCH_VT8500
enabled, and USB_UHCI_PLATFORM disabled).

This patch fixes the problem by rearranging the dependencies.  Now the
platform-dependent config options don't depend on USB_UHCI_HCD;
instead it depends on them.  Furthermore, there is no user-selectable
choice as to which glue modules will be built.  If USB_UHCI_HCD is
enabled then all applicable bus glues will be built.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index de94f26..344d5e2 100644 (file)
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -507,7 +507,7 @@ endif # USB_OHCI_HCD
 
 config USB_UHCI_HCD
        tristate "UHCI HCD (most Intel and VIA) support"
-       depends on PCI || SPARC_LEON || ARCH_VT8500
+       depends on PCI || USB_UHCI_SUPPORT_NON_PCI_HC
        ---help---
          The Universal Host Controller Interface is a standard by Intel for
          accessing the USB hardware in the PC (which is also called the USB
@@ -524,26 +524,19 @@ config USB_UHCI_HCD
 
 config USB_UHCI_SUPPORT_NON_PCI_HC
        bool
-       depends on USB_UHCI_HCD
-       default y if (SPARC_LEON || ARCH_VT8500)
+       default y if (SPARC_LEON || USB_UHCI_PLATFORM)
 
 config USB_UHCI_PLATFORM
-       bool "Generic UHCI Platform Driver support"
-       depends on USB_UHCI_SUPPORT_NON_PCI_HC
+       bool
        default y if ARCH_VT8500
-       ---help---
-         Enable support for generic UHCI platform devices that require no
-         additional configuration.
 
 config USB_UHCI_BIG_ENDIAN_MMIO
        bool
-       depends on USB_UHCI_SUPPORT_NON_PCI_HC && SPARC_LEON
-       default y
+       default y if SPARC_LEON
 
 config USB_UHCI_BIG_ENDIAN_DESC
        bool
-       depends on USB_UHCI_SUPPORT_NON_PCI_HC && SPARC_LEON
-       default y
+       default y if SPARC_LEON
 
 config USB_FHCI_HCD
        tristate "Freescale QE USB Host Controller support"