Since ulpi bus driver is located at usb/common/ulpi.c, whether it
is compiled or not depends on CONFIG_USB_COMMON which needs either
USB Host or USB Gadget is enabled, so even CONFIG_USB_ULPI_BUS is
chosen, its source may still not be compiled when both USB HOST
and USB gadget are disabled.
It fixed compile error with below configurations:
- # CONFIG_USB is not set
- # CONFIG_USB_GADGET is not set
- CONFIG_PHY_TUSB1210=m
- CONFIG_USB_ULPI_BUS=m
>> All errors (new ones prefixed by >>):
>>
>> ERROR: "ulpi_unregister_driver" [drivers/phy/phy-tusb1210.ko] undefined!
>> ERROR: "__ulpi_register_driver" [drivers/phy/phy-tusb1210.ko] undefined!
>> ERROR: "ulpi_write" [drivers/phy/phy-tusb1210.ko] undefined!
Fixes: ad764c49f65a ("usb: Kconfig: move ulpi bus support out of host")
Cc: Fengguang Wu <[email protected]>
Signed-off-by: Peter Chen <[email protected]>
---
drivers/usb/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig
index 6dfa10a..2b9159a 100644
--- a/drivers/usb/Kconfig
+++ b/drivers/usb/Kconfig
@@ -162,6 +162,7 @@ config USB_LED_TRIG
config USB_ULPI_BUS
tristate "USB ULPI PHY interface support"
+ depends on USB_COMMON
help
UTMI+ Low Pin Interface (ULPI) is specification for a commonly used
USB 2.0 PHY interface. The ULPI specification defines a standard set
--
2.7.4
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