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=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS autolearn=no 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 1B1EFCA9EA3 for ; Fri, 18 Oct 2019 07:57:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0072921897 for ; Fri, 18 Oct 2019 07:57:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2394154AbfJRH5F (ORCPT ); Fri, 18 Oct 2019 03:57:05 -0400 Received: from coyote.holtmann.net ([212.227.132.17]:45521 "EHLO mail.holtmann.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728064AbfJRH5F (ORCPT ); Fri, 18 Oct 2019 03:57:05 -0400 Received: from surfer-172-29-2-69-hotspot.internet-for-guests.com (p578ac27a.dip0.t-ipconnect.de [87.138.194.122]) by mail.holtmann.org (Postfix) with ESMTPSA id 221ABCECF3; Fri, 18 Oct 2019 10:06:02 +0200 (CEST) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 13.0 \(3594.4.19\)) Subject: Re: [PATCH] Bluetooth: hci_qca: Add delay for wcn3990 stability From: Marcel Holtmann In-Reply-To: <20191017212955.6266-1-jeffrey.l.hugo@gmail.com> Date: Fri, 18 Oct 2019 09:57:02 +0200 Cc: Johan Hedberg , c-hbandi@codeaurora.org, bgodavar@codeaurora.org, linux-bluetooth@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org Content-Transfer-Encoding: 7bit Message-Id: <42FF80BF-9975-4553-BAFF-B782349BBB07@holtmann.org> References: <20191017212955.6266-1-jeffrey.l.hugo@gmail.com> To: Jeffrey Hugo X-Mailer: Apple Mail (2.3594.4.19) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Jeffrey, > On the msm8998 mtp, the response to the baudrate change command is never > received. On the Lenovo Miix 630, the response to the baudrate change > command is corrupted - "Frame reassembly failed (-84)". > > Adding a 50ms delay before re-enabling flow to receive the baudrate change > command response from the wcn3990 addesses both issues, and allows > bluetooth to become functional. > > Signed-off-by: Jeffrey Hugo > --- > drivers/bluetooth/hci_qca.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) patch has been applied to bluetooth-next tree. Regards Marcel