• Roger Quadros's avatar
    usb: phy: make PHY driver selection possible by controller drivers · 052a11d1
    Roger Quadros authored
    Convert PHY Drivers from menuconfig to menu so that the PHY drivers
    can be explicitely selected by the controller drivers.
    
    USB_PHY is no longer a user visible option. It is upto to the PHY
    drivers to select it if needed. This patch does so for the existing
    PHY drivers that use the USB_PHY library.
    
    Doing so moves the USB_PHY and PHY driver selection problem from the
    end user to the PHY and controller driver developer.
    
    e.g.
    
    Earlier, a controller driver (e.g. EHCI_OMAP) that needs to select
    a PHY driver (e.g. NOP_PHY) couldn't do so because the PHY driver
    depended on USB_PHY. Making the controller driver depend on USB_PHY
    has a negative effect i.e. it becomes invisible to the user till
    USB_PHY is enabled. Most end users will not familiar with this.
    
    With this patch, the end user just needs to select the controller driver
    needed for his/her platform without worrying about which PHY driver to
    select.
    
    Also update USB_EHCI_MSM, USB_LPC32XX and USB_OMAP to not depend
    on USB_PHY any more. They can safely select the necessary PHY drivers.
    
    [ balbi@ti.com : refreshed on top of my next branch. Changed bool
    	followed by default n into def_bool n ]
    
    CC: Pavankumar Kondeti <pkondeti@codeaurora.org>
    Acked-by: default avatarRoland Stigge <stigge@antcom.de>
    Signed-off-by: default avatarRoger Quadros <rogerq@ti.com>
    Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
    052a11d1
Kconfig 6.78 KB