usb: dwc3: set gadget's quirk ep_out_align_size

DWC3 requires epout to have buffer size aligned to MaxPacketSize value.
This patch sets necessary quirk for it.

Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 5452c0fce36074d4238e3553bb00d879d8df9ac3..b85ec110d6a0d6bfed07c12760a6ad2855ac8727 100644 (file)
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -2599,6 +2599,12 @@ int dwc3_gadget_init(struct dwc3 *dwc)
        dwc->gadget.sg_supported        = true;
        dwc->gadget.name                = "dwc3-gadget";
 
+       /*
+        * Per databook, DWC3 needs buffer size to be aligned to MaxPacketSize
+        * on ep out.
+        */
+       dwc->gadget.quirk_ep_out_aligned_size = true;
+
        /*
         * REVISIT: Here we should clear all pending IRQs to be
         * sure we're starting from a well known location.