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>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 5452c0fce360..b85ec110d6a0 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -2600,6 +2600,12 @@ int dwc3_gadget_init(struct dwc3 *dwc)
         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.
          */