USB: pxa2xx_udc: use generic gpio layer
This patch lets the pxa2xx_udc use the generic gpio layer, on the relevant PXA and IXP systems. Signed-off-by: NMilan Svoboda <msvoboda@ra.rockwell.com> Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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