From patchwork Tue Mar 3 16:32:10 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?q?=C5=81ukasz_Majewski?= X-Patchwork-Id: 445800 X-Patchwork-Delegate: l.majewski@samsung.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from theia.denx.de (theia.denx.de [85.214.87.163]) by ozlabs.org (Postfix) with ESMTP id F27F31400DE for ; Wed, 4 Mar 2015 03:38:03 +1100 (AEDT) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 5571A4B5CD; Tue, 3 Mar 2015 17:38:02 +0100 (CET) Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id y-QE2Ne5gO_p; Tue, 3 Mar 2015 17:38:02 +0100 (CET) Received: from theia.denx.de (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 040414B58F; Tue, 3 Mar 2015 17:38:02 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 76F674B585 for ; Tue, 3 Mar 2015 17:37:56 +0100 (CET) Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id NeGFDi7J3uu4 for ; Tue, 3 Mar 2015 17:37:56 +0100 (CET) X-policyd-weight: NOT_IN_SBL_XBL_SPAMHAUS=-1.5 NOT_IN_SPAMCOP=-1.5 NOT_IN_BL_NJABL=-1.5 (only DNSBL check requested) Received: from mailout1.samsung.com (mailout1.samsung.com [203.254.224.24]) by theia.denx.de (Postfix) with ESMTPS id 09C424A01B for ; Tue, 3 Mar 2015 17:37:52 +0100 (CET) Received: from epcpsbgm1.samsung.com (epcpsbgm1 [203.254.230.26]) by mailout1.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0NKN002NKA72XU10@mailout1.samsung.com> for u-boot@lists.denx.de; Wed, 04 Mar 2015 01:37:50 +0900 (KST) X-AuditID: cbfee61a-f79c06d000004e71-88-54f5e35e206d Received: from epmmp1.local.host ( [203.254.227.16]) by epcpsbgm1.samsung.com (EPCPMTA) with SMTP id 68.1A.20081.E53E5F45; Wed, 04 Mar 2015 01:37:50 +0900 (KST) Received: from mcdsrvbld02.digital.local ([106.116.37.23]) by mmp1.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0NKN00J3L9XXLX60@mmp1.samsung.com>; Wed, 04 Mar 2015 01:37:50 +0900 (KST) From: Lukasz Majewski To: u-boot@lists.denx.de, Kishon Vijay Abraham I , marex@denx.de Date: Tue, 03 Mar 2015 17:32:10 +0100 Message-id: <1425400336-20442-9-git-send-email-l.majewski@samsung.com> X-Mailer: git-send-email 1.7.10.4 In-reply-to: <1425400336-20442-1-git-send-email-l.majewski@samsung.com> References: <1424700152-8554-1-git-send-email-l.majewski@samsung.com> <1425400336-20442-1-git-send-email-l.majewski@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrJLMWRmVeSWpSXmKPExsVy+t9jAd24x19DDLbdU7E4eL/e4vJ+bYtd f+8zWry4d5HF4sLTHjaLN4+4LdYeuctu8aatkdFif+8GJosdl2+wWPQ80rJ4dbCNxWLy4vnM Fm/3drI78HnMm3WCxePsnR2MHuumvWX26NuyitHj+I3tTB4b54YGsEVx2aSk5mSWpRbp2yVw ZRxq+81U8Im9ovXZZaYGxs1sXYycHBICJhKLHjSzQNhiEhfurQeKc3EICSxilPhz7jgzhNPF JPGubw9YB5uAnsTnu0+ZQGwRAX+Jq4+PsIAUMQs8YZJ4vGcLkMPBISzgK7H3SC5IDYuAqsT6 dR/B6nkF3CRW39/BCrFNUaL72QSwmZwC7hLLr52AWtbEKPHi8AvmCYy8CxgZVjGKphYkFxQn peca6hUn5haX5qXrJefnbmIEB+gzqR2MKxssDjEKcDAq8fC+4PwaIsSaWFZcmXuIUYKDWUmE V+AWUIg3JbGyKrUoP76oNCe1+BCjNAeLkjivkn1biJBAemJJanZqakFqEUyWiYNTqoEx40ej 4VZN06PFrz0fpnOaeay8dOjr06JV2rPi16TOszvM5TtjW6qQ0FrZkA0xbQc/HJevSd687eya zUlFTyt/fioTeNK969Gn7RJ5azOWBr2t3Hr2PsfS4IcB+llprZ1vrcIOTJcVWPCl0ivrzeq2 3Qt/uZiXrTnp/pnbSjDAZvGE51bz9fyMlViKMxINtZiLihMBQAc5h0wCAAA= Cc: Marek Szyprowski , nsekhar@ti.com, Przemyslaw Marczak , Tom Rini , rogerq@ti.com Subject: [U-Boot] [PATCH 08/14] usb: dwc3: add a workaround for too small OUT requests X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.15 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" From: Marek Szyprowski DWC3 hangs on OUT requests smaller than maxpacket size, so HACK the request length to be at least equal to maxpacket size. Signed-off-by: Marek Szyprowski --- drivers/usb/dwc3/gadget.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index a497fbb..737cb3e 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -973,6 +973,14 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req) req->epnum = dep->number; /* + * DWC3 hangs on OUT requests smaller than maxpacket size, + * so HACK the request length + */ + if (dep->direction == 0 && + req->request.length < dep->endpoint.maxpacket) + req->request.length = dep->endpoint.maxpacket; + + /* * We only add to our list of requests now and * start consuming the list once we get XferNotReady * IRQ.