usb: chipidea: improve kconfig 2.0
This patch provides a cleaner solution to the problem described in commit 20a677fd ("usb: chipidea: improve kconfig"). The goal to be achieved is to force USB_CHIPIDEA=m if either USB_EHCI_HCD=m or USB_GADGET=m. If both are 'y' USB_CHIPIDEA may be selected to be 'm' or 'y'. The old patch had the drawback, that USB_CHIPIDEA could be chosen as 'y' though USB_EHCI_HCD or USB_GADGET (or both) were 'm' leading to a situation where USB_CHIPIDEA_HOST or USB_CHIPIDEA_UDC vanished from the config options producing a compilable but dysfunctional driver. Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de> Reviewed-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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