From: David Cohen <david.a.cohen@linux.intel.com>
Date: Mon, 9 Dec 2013 23:55:38 +0000 (-0800)
Subject: usb: dwc3: set gadget's quirk ep_out_align_size
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=a4b9d94b3dc8e65951c1819d37f213b3c6815adc;p=linux-beck.git

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 5452c0fce360..b85ec110d6a0 100644
--- 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.