From patchwork Mon Mar 1 16:13:21 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 390197 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 03DB3C433DB for ; Mon, 1 Mar 2021 16:42:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BC6956501F for ; Mon, 1 Mar 2021 16:42:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232614AbhCAQla (ORCPT ); Mon, 1 Mar 2021 11:41:30 -0500 Received: from mail.kernel.org ([198.145.29.99]:36924 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234146AbhCAQeU (ORCPT ); Mon, 1 Mar 2021 11:34:20 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id C1FF964F65; Mon, 1 Mar 2021 16:25:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1614615950; bh=lvZBpWBWlaiMbmx7JZOtkfo25nShx4+/xJUUs9mwPO4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=DFrzK3K1GYeoMlIHfWJwd+l0YRxB4+cgqjP8kspF+9ZOJ3aDm7duREUFcYHnReZdO RyrlJONicLOQbM1oekHSioOBpVH8jOUAnAPxb9UFa2euEeKU17TtQYWXNRqNC4xYHJ iyjxlPwFcCZgQwoY0kMwi1Vd0oxjKls9QxSByT9o= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Thinh Nguyen Subject: [PATCH 4.9 100/134] usb: dwc3: gadget: Fix dep->interval for fullspeed interrupt Date: Mon, 1 Mar 2021 17:13:21 +0100 Message-Id: <20210301161018.485157042@linuxfoundation.org> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210301161013.585393984@linuxfoundation.org> References: <20210301161013.585393984@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Thinh Nguyen commit 4b049f55ed95cd889bcdb3034fd75e1f01852b38 upstream. The dep->interval captures the number of frames/microframes per interval from bInterval. Fullspeed interrupt endpoint bInterval is the number of frames per interval and not 2^(bInterval - 1). So fix it here. This change is only for debugging purpose and should not affect the interrupt endpoint operation. Fixes: 72246da40f37 ("usb: Introduce DesignWare USB3 DRD Driver") Cc: Signed-off-by: Thinh Nguyen Link: https://lore.kernel.org/r/1263b563dedc4ab8b0fb854fba06ce4bc56bd495.1612820995.git.Thinh.Nguyen@synopsys.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/dwc3/gadget.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -538,8 +538,13 @@ static int dwc3_gadget_set_ep_config(str if (dwc->gadget.speed == USB_SPEED_FULL) bInterval_m1 = 0; + if (usb_endpoint_type(desc) == USB_ENDPOINT_XFER_INT && + dwc->gadget.speed == USB_SPEED_FULL) + dep->interval = desc->bInterval; + else + dep->interval = 1 << (desc->bInterval - 1); + params.param1 |= DWC3_DEPCFG_BINTERVAL_M1(bInterval_m1); - dep->interval = 1 << (desc->bInterval - 1); } return dwc3_send_gadget_ep_cmd(dep, DWC3_DEPCMD_SETEPCONFIG, ¶ms);