usb: otg: Add ulpi viewport access ops
Add generic access ops for controllers with a ulpi viewport register
(e.g. Chipidea/ARC based controllers).
Signed-off-by: Benoit Goby <benoit@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/otg/Kconfig b/drivers/usb/otg/Kconfig
index ceb24fe..daf3e5f 100644
--- a/drivers/usb/otg/Kconfig
+++ b/drivers/usb/otg/Kconfig
@@ -49,6 +49,13 @@
Enable this to support ULPI connected USB OTG transceivers which
are likely found on embedded boards.
+config USB_ULPI_VIEWPORT
+ bool
+ depends on USB_ULPI
+ help
+ Provides read/write operations to the ULPI phy register set for
+ controllers with a viewport register (e.g. Chipidea/ARC controllers).
+
config TWL4030_USB
tristate "TWL4030 USB Transceiver Driver"
depends on TWL4030_CORE && REGULATOR_TWL4030