From patchwork Mon Mar 15 13:53:47 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 401282 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=-19.0 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 B8755C2BA4C for ; Mon, 15 Mar 2021 14:06:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A5F6E64F18 for ; Mon, 15 Mar 2021 14:06:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234836AbhCOOFt (ORCPT ); Mon, 15 Mar 2021 10:05:49 -0400 Received: from mail.kernel.org ([198.145.29.99]:35904 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233271AbhCOOBV (ORCPT ); Mon, 15 Mar 2021 10:01:21 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 2EC5F64F58; Mon, 15 Mar 2021 14:00:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1615816856; bh=SePqJ/hqNOivsSLXvFM12BA4uui9fdaslfPVA41NM+I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FllpOUe3kfgQAC9iubQemtWv4cHYvBByEHxS64wqzMx5Jxp/ugwvwEwCxjdZ37KxE 46oLg17aye2F+K74w69inIHWB4YCfB5ZPcQzrtJkvNTkMgaTeCpMANowN+gQrFZNQP tEM04oVz9t6Lg41jZk3tAlgxSlzL5Vjlh7MsDQIA= From: gregkh@linuxfoundation.org To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Andreas Kempe , John Ernberg , Takashi Iwai Subject: [PATCH 5.11 164/306] ALSA: usb: Add Plantronics C320-M USB ctrl msg delay quirk Date: Mon, 15 Mar 2021 14:53:47 +0100 Message-Id: <20210315135513.180815091@linuxfoundation.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210315135507.611436477@linuxfoundation.org> References: <20210315135507.611436477@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Greg Kroah-Hartman From: John Ernberg commit fc7c5c208eb7bc2df3a9f4234f14eca250001cb6 upstream. The microphone in the Plantronics C320-M headset will randomly fail to initialize properly, at least when using Microsoft Teams. Introducing a 20ms delay on the control messages appears to resolve the issue. Link: https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/issues/1065 Tested-by: Andreas Kempe Signed-off-by: John Ernberg Cc: Link: https://lore.kernel.org/r/20210303181405.39835-1-john.ernberg@actia.se Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- sound/usb/quirks.c | 8 ++++++++ 1 file changed, 8 insertions(+) --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -1670,6 +1670,14 @@ void snd_usb_ctl_msg_quirk(struct usb_de && (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS) msleep(20); + /* + * Plantronics C320-M needs a delay to avoid random + * microhpone failures. + */ + if (chip->usb_id == USB_ID(0x047f, 0xc025) && + (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS) + msleep(20); + /* Zoom R16/24, many Logitech(at least H650e/H570e/BCC950), * Jabra 550a, Kingston HyperX needs a tiny delay here, * otherwise requests like get/set frequency return