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[23.128.96.18]) by mx.google.com with ESMTP id kt13si365579ejb.297.2020.06.29.12.58.52; Mon, 29 Jun 2020 12:59:15 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=OgMU7YOm; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388439AbgF2T4w (ORCPT + 99 others); Mon, 29 Jun 2020 15:56:52 -0400 Received: from mail.kernel.org ([198.145.29.99]:47666 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387638AbgF2TkY (ORCPT ); Mon, 29 Jun 2020 15:40:24 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C19062486B; Mon, 29 Jun 2020 15:26:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1593444367; bh=bFiSsjGfjHqZFs1IdDoWv8IHc8C3Jrkn+G/VfOZ8JG4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OgMU7YOmc3LNZxiwkX9iUuD2IXhtqjyfmDUO8MQkSdp0aYFTpFZL4xTKybLTFZwKb 1tk2njDepx4bVtLr9YE4UqWC7xsQ80JKxcAjljxIXYsawe115QE8dsiveYtzy7UJCD nEWWjgx/KXYXc2DScGmupQQSfliAyFXF3Ek0n/Hc= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Macpaul Lin , Chihhao Chen , Takashi Iwai , Greg Kroah-Hartman Subject: [PATCH 5.4 044/178] ALSA: usb-audio: add quirk for Samsung USBC Headset (AKG) Date: Mon, 29 Jun 2020 11:23:09 -0400 Message-Id: <20200629152523.2494198-45-sashal@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200629152523.2494198-1-sashal@kernel.org> References: <20200629152523.2494198-1-sashal@kernel.org> MIME-Version: 1.0 X-KernelTest-Patch: http://kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.4.50-rc1.gz X-KernelTest-Tree: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git X-KernelTest-Branch: linux-5.4.y X-KernelTest-Patches: git://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git X-KernelTest-Version: 5.4.50-rc1 X-KernelTest-Deadline: 2020-07-01T15:25+00:00 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Macpaul Lin commit a32a1fc99807244d920d274adc46ba04b538cc8a upstream. We've found Samsung USBC Headset (AKG) (VID: 0x04e8, PID: 0xa051) need a tiny delay after each class compliant request. Otherwise the device might not be able to be recognized each times. Signed-off-by: Chihhao Chen Signed-off-by: Macpaul Lin Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/1592910203-24035-1-git-send-email-macpaul.lin@mediatek.com Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- sound/usb/quirks.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c index eb3da0b71269c..bf5083a20b6d5 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -1603,6 +1603,14 @@ void snd_usb_ctl_msg_quirk(struct usb_device *dev, unsigned int pipe, chip->usb_id == USB_ID(0x0951, 0x16ad)) && (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS) usleep_range(1000, 2000); + + /* + * Samsung USBC Headset (AKG) need a tiny delay after each + * class compliant request. (Model number: AAM625R or AAM627R) + */ + if (chip->usb_id == USB_ID(0x04e8, 0xa051) && + (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS) + usleep_range(5000, 6000); } /* -- 2.25.1