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authorArnd Bergmann <arnd@arndb.de>2014-05-08 17:52:21 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-05-28 02:53:00 +0400
commit068413e9b7beb0843704ebaee3fb20f31c9a4cdf (patch)
tree5269d7e4a64ed515bcef4334be8aafba5b305cc5 /drivers
parent274f6afa298791df97fd37b7bc9d8327f5cf6ee9 (diff)
downloadlinux-068413e9b7beb0843704ebaee3fb20f31c9a4cdf.tar.xz
usb: ohci-da8xx can only be built-in
The PHY setup code of the TI DaVinci DA8xx OHCI controller uses ad-hoc register access using a pointer that is meant to be used only by the DaVinci platform implementation and that is intentionally not exported to loadable modules. This results in a link error on configurations that use a modular OHCI code on this platform. While the proper solution for this problem would be to implement a real PHY driver shared by ohci-da8xx and musb-da8xx, this patch for now just works around the build error by only allowing the ohci-da8xx code to be built-in. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/usb/host/Kconfig10
-rw-r--r--drivers/usb/host/ohci-hcd.c2
2 files changed, 11 insertions, 1 deletions
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 22b50624f0f9..363fc212c618 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -435,6 +435,16 @@ config USB_OHCI_HCD_OMAP3
Enables support for the on-chip OHCI controller on
OMAP3 and later chips.
+config USB_OHCI_HCD_DAVINCI
+ bool "OHCI support for TI DaVinci DA8xx"
+ depends on ARCH_DAVINCI_DA8XX
+ depends on USB_OHCI_HCD=y
+ default y
+ help
+ Enables support for the DaVinci DA8xx integrated OHCI
+ controller. This driver cannot currently be a loadable
+ module because it lacks a proper PHY abstraction.
+
config USB_OHCI_ATH79
bool "USB OHCI support for the Atheros AR71XX/AR7240 SoCs (DEPRECATED)"
depends on (SOC_AR71XX || SOC_AR724X)
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 3586460fb2a1..f98d03f3144c 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1178,7 +1178,7 @@ MODULE_LICENSE ("GPL");
#define SA1111_DRIVER ohci_hcd_sa1111_driver
#endif
-#ifdef CONFIG_ARCH_DAVINCI_DA8XX
+#ifdef CONFIG_USB_OHCI_HCD_DAVINCI
#include "ohci-da8xx.c"
#define DAVINCI_PLATFORM_DRIVER ohci_hcd_da8xx_driver
#endif