usb: gadget: add 'quirk_altset_not_supp' to usb_gadget

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Due to some UDC controllers may not support altsettings, usb gadget layer
needs to provide a generic way to inform gadget functions about non-standard
hardware limitations.

This patch adds 'quirk_altset_not_supp' field to struct usb_gadget and helper
function gadget_is_altset_supported(). It also sets 'quirk_altset_not_supp'
to 1 in pxa25x_udc and pxa27x_udc drivers, which have such limitation.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

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Robert Baldyga 2015-07-28 07:19:58 +02:00 • committed by Felipe Balbi

parent c0bd5456a4

commit ffd9a0fcbb

3 changed files with 13 additions and 0 deletions

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1

drivers/usb/gadget/udc/pxa25x_udc.c

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1

drivers/usb/gadget/udc/pxa27x_udc.c

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11

include/linux/usb/gadget.h

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