From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755000AbbBSAxz (ORCPT ); Wed, 18 Feb 2015 19:53:55 -0500 Received: from youngberry.canonical.com ([91.189.89.112]:35542 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753842AbbBSAeQ (ORCPT ); Wed, 18 Feb 2015 19:34:16 -0500 From: Kamal Mostafa To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Bo Shen , Felipe Balbi , Kamal Mostafa Subject: [PATCH 3.13.y-ckt 041/103] usb: gadget: udc: atmel: change setting for DMA Date: Wed, 18 Feb 2015 16:32:08 -0800 Message-Id: <1424305990-17983-42-git-send-email-kamal@canonical.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1424305990-17983-1-git-send-email-kamal@canonical.com> References: <1424305990-17983-1-git-send-email-kamal@canonical.com> X-Extended-Stable: 3.13 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.13.11-ckt16 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Bo Shen commit f40afdddeb6c54ffd1e2920a5e93e363d6748db6 upstream. According to the datasheet, when transfer using DMA, the control setting for IN packet only need END_BUF_EN, END_BUF_IE, CH_EN, while for OUT packet, need more two bits END_TR_EN and END_TR_IE to be configured. Fixes: 914a3f3b3754 (USB: add atmel_usba_udc driver) Acked-by: Nicolas Ferre Signed-off-by: Bo Shen Signed-off-by: Felipe Balbi Signed-off-by: Kamal Mostafa --- drivers/usb/gadget/atmel_usba_udc.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/usb/gadget/atmel_usba_udc.c b/drivers/usb/gadget/atmel_usba_udc.c index 1e53092..c22e718 100644 --- a/drivers/usb/gadget/atmel_usba_udc.c +++ b/drivers/usb/gadget/atmel_usba_udc.c @@ -716,10 +716,10 @@ static int queue_dma(struct usba_udc *udc, struct usba_ep *ep, req->using_dma = 1; req->ctrl = USBA_BF(DMA_BUF_LEN, req->req.length) | USBA_DMA_CH_EN | USBA_DMA_END_BUF_IE - | USBA_DMA_END_TR_EN | USBA_DMA_END_TR_IE; + | USBA_DMA_END_BUF_EN; - if (ep->is_in) - req->ctrl |= USBA_DMA_END_BUF_EN; + if (!ep->is_in) + req->ctrl |= USBA_DMA_END_TR_EN | USBA_DMA_END_TR_IE; /* * Add this request to the queue and submit for DMA if -- 1.9.1