From mboxrd@z Thu Jan 1 00:00:00 1970 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=-18.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 4C412C433E0 for ; Tue, 9 Feb 2021 08:40:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 09E8464E92 for ; Tue, 9 Feb 2021 08:40:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229894AbhBIIku (ORCPT ); Tue, 9 Feb 2021 03:40:50 -0500 Received: from mail.kernel.org ([198.145.29.99]:47538 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229759AbhBIIkr (ORCPT ); Tue, 9 Feb 2021 03:40:47 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 3A68564E79; Tue, 9 Feb 2021 08:40:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1612860006; bh=otwgLlJf+A3aIEzGqOOPi2G4bqn/n0+qJOpUPTfxx9c=; h=Subject:To:From:Date:From; b=p3vu7UJPkGP3MWfmLJbMLDmEtz0+3P99NE9G91ObeITnqu9qejfDbMFzB2UoVpbm5 BV93RpPqg6SycCDepk4U+j3/L1Z0fPrVbY+j2rN8xpXMX8s3+51Xqw1EibFWHeFf9F AUcXREXFoTWya8kEIu13V9cDp/x2BEDfhaAoZ55A= Subject: patch "usb: dwc3: gadget: Fix setting of DEPCFG.bInterval_m1" added to usb-testing To: Thinh.Nguyen@synopsys.com, gregkh@linuxfoundation.org, stable@vger.kernel.org From: Date: Tue, 09 Feb 2021 09:40:04 +0100 Message-ID: <1612860004125229@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org This is a note to let you know that I've just added the patch titled usb: dwc3: gadget: Fix setting of DEPCFG.bInterval_m1 to my usb git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git in the usb-testing branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will be merged to the usb-next branch sometime soon, after it passes testing, and the merge window is open. If you have any questions about this process, please let me know. >From a1679af85b2ae35a2b78ad04c18bb069c37330cc Mon Sep 17 00:00:00 2001 From: Thinh Nguyen Date: Mon, 8 Feb 2021 13:53:10 -0800 Subject: usb: dwc3: gadget: Fix setting of DEPCFG.bInterval_m1 Valid range for DEPCFG.bInterval_m1 is from 0 to 13, and it must be set to 0 when the controller operates in full-speed. See the programming guide for DEPCFG command section 3.2.2.1 (v3.30a). Fixes: 72246da40f37 ("usb: Introduce DesignWare USB3 DRD Driver") Cc: Signed-off-by: Thinh Nguyen Link: https://lore.kernel.org/r/3f57026f993c0ce71498dbb06e49b3a47c4d0265.1612820995.git.Thinh.Nguyen@synopsys.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/dwc3/gadget.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 97d707b4f384..d0f8d3ec855f 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -605,7 +605,17 @@ static int dwc3_gadget_set_ep_config(struct dwc3_ep *dep, unsigned int action) params.param0 |= DWC3_DEPCFG_FIFO_NUMBER(dep->number >> 1); if (desc->bInterval) { - params.param1 |= DWC3_DEPCFG_BINTERVAL_M1(desc->bInterval - 1); + u8 bInterval_m1; + + /* + * Valid range for DEPCFG.bInterval_m1 is from 0 to 13, and it + * must be set to 0 when the controller operates in full-speed. + */ + bInterval_m1 = min_t(u8, desc->bInterval - 1, 13); + if (dwc->gadget->speed == USB_SPEED_FULL) + bInterval_m1 = 0; + + params.param1 |= DWC3_DEPCFG_BINTERVAL_M1(bInterval_m1); dep->interval = 1 << (desc->bInterval - 1); } -- 2.30.0