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| author | Arnd Bergmann <arnd@arndb.de> | 2016-01-28 17:20:54 +0100 |
|---|---|---|
| committer | Felipe Balbi <balbi@kernel.org> | 2016-03-04 15:14:29 +0200 |
| commit | d0fc35bc0889c7157527ed5758f54101ec015839 (patch) | |
| tree | 5e769fe3b6ad528d8ea9390d40d69b87af73402b /drivers/usb/gadget/udc | |
| parent | 65bc0fba4ed6e2ea7d89539985feb576ae2f84b9 (diff) | |
| download | lwn-d0fc35bc0889c7157527ed5758f54101ec015839.tar.gz lwn-d0fc35bc0889c7157527ed5758f54101ec015839.zip | |
usb: fsl: drop USB_FSL_MPH_DR_OF Kconfig symbol
The USB_FSL_MPH_DR_OF symbol is used to ensure the code that interprets
the DR device node is built whenever one of the two drivers (EHCI or
UDC) for the platform is enabled. However, if CONFIG_USB is disabled
and we only support gadget mode, this causes a Kconfig warning:
warning: (USB_FSL_USB2) selects USB_FSL_MPH_DR_OF which has unmet direct dependencies (USB_SUPPORT && USB)
We can avoid this warning by simply no longer using the symbol,
and making sure we enter the drivers/usb/host/ directory when
the UDC driver is enabled that needs the file, and then we use
Makefile syntax to ensure the file is built-in if needed.
There is currently a dependency on CONFIG_OF, but this is redundant,
as we already know that this is set unconditionally for the platforms
that use this driver.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Diffstat (limited to 'drivers/usb/gadget/udc')
| -rw-r--r-- | drivers/usb/gadget/udc/Kconfig | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/usb/gadget/udc/Kconfig b/drivers/usb/gadget/udc/Kconfig index d6ad7e6c978c..ff4f8a6735d6 100644 --- a/drivers/usb/gadget/udc/Kconfig +++ b/drivers/usb/gadget/udc/Kconfig @@ -74,7 +74,6 @@ config USB_BCM63XX_UDC config USB_FSL_USB2 tristate "Freescale Highspeed USB DR Peripheral Controller" depends on FSL_SOC || ARCH_MXC - select USB_FSL_MPH_DR_OF if OF help Some of Freescale PowerPC and i.MX processors have a High Speed Dual-Role(DR) USB controller, which supports device mode. |