On Mon, 22 Oct 2012, Tony Prisk wrote: > I suspected this might be a problem when I first looked at the ehci > code, and in working on the ehci-platform driver recently it has become > apparent this is actually going to be a problem in the near future. > > Because of the way ehci-hcd includes the source for variations: > ... > #ifdef CONFIG_ARCH_VT8500 > #include "ehci-vt8500.c" > #define PLATFORM_DRIVER vt8500_ehci_driver > #endif > > #ifdef CONFIG_PLAT_SPEAR > #include "ehci-spear.c" > #define PLATFORM_DRIVER spear_ehci_hcd_driver > #endif > ... > > You can't have multiple drivers selected without getting a > PLATFORM_DRIVER redefined warning/error. > > With ARM moving to multiplatform, there is going to be a need for a > kernel config to select all EHCI drivers that are needed. > > Does Florian's (or another) patchset address this problem?? Florian's patches will help, because they decrease the number of platform drivers to consider. But they don't solve the problem. I have been working on a separate set of changes that _will_ fix the problem. I'm waiting for Florian's patches to be accepted before I send mine in. Alan Stern P.S.: The same problem applies to ohci-hcd and xhci-hcd (and even uhci-hcd, if any ARM-based systems support it). -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
