From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754032Ab3KDWJE (ORCPT ); Mon, 4 Nov 2013 17:09:04 -0500 Received: from mga02.intel.com ([134.134.136.20]:50701 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751631Ab3KDWIf (ORCPT ); Mon, 4 Nov 2013 17:08:35 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.93,535,1378882800"; d="scan'208";a="429741877" From: David Cohen To: balbi@ti.com, gregkh@linuxfoundation.org Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, David Cohen Subject: [PATCH v4 4/4] usb: dwc3: add quirk USB_GADGET_QUIRK_EP_OUT_ALIGNED_SIZE to gadget driver Date: Mon, 4 Nov 2013 14:12:57 -0800 Message-Id: <1383603177-4624-5-git-send-email-david.a.cohen@linux.intel.com> X-Mailer: git-send-email 1.8.4.rc3 In-Reply-To: <1383603177-4624-1-git-send-email-david.a.cohen@linux.intel.com> References: <1383603177-4624-1-git-send-email-david.a.cohen@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org DWC3 requires epout to have buffer size aligned to MaxPacketSize value. This patch adds necessary quirk for it. Signed-off-by: David Cohen --- drivers/usb/dwc3/gadget.c | 6 ++++++ 1 file changed, 6 insertions(+) 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. */ -- 1.8.4.rc3