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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 5DB39C41621 for ; Tue, 24 Mar 2020 13:12:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 243B5208CA for ; Tue, 24 Mar 2020 13:12:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1585055554; bh=EEvvfhmxdev/pFSM7PgnHtvM1QPYghNhCKh9PDwsrys=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=NUwsOWUyRjw/ivouQp8NNfzsdNz7jpY2T0o20HFfeQNKib28Jx/1o6yHxUHO7lX6r KiEHRPg8NZUwYcqWupC/7hQToW+dAwEgSRgg4sKeumensYaMs7Qtf0EHoZQi8jJuzf Dbf4UPJ6bcx+bxjz3n0JLxnvDDRuqvnxHI/iIjMw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727530AbgCXNMc (ORCPT ); Tue, 24 Mar 2020 09:12:32 -0400 Received: from mail.kernel.org ([198.145.29.99]:58252 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727612AbgCXNM1 (ORCPT ); Tue, 24 Mar 2020 09:12:27 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 08D9220775; Tue, 24 Mar 2020 13:12:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1585055547; bh=EEvvfhmxdev/pFSM7PgnHtvM1QPYghNhCKh9PDwsrys=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=zo8Yj7ByhHi8Mk31aI/sLgUc9zEtlqb6BK+13MtXWON2hUr26c+yQ8jTyccaF4n7p 7u61jYkfPQm19xxllgpR5J6/3deO1047I0vFe/to9lM5vS0DOWg72nWQVl/xx3VhJt S+Tpb2SsOm8qQzbdwtjKzlrllj9WGWHMDQVw/stA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Alan Stern , Kai-Heng Feng Subject: [PATCH 4.19 20/65] USB: Disable LPM on WD19s Realtek Hub Date: Tue, 24 Mar 2020 14:10:41 +0100 Message-Id: <20200324130759.582082027@linuxfoundation.org> X-Mailer: git-send-email 2.25.2 In-Reply-To: <20200324130756.679112147@linuxfoundation.org> References: <20200324130756.679112147@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Kai-Heng Feng commit b63e48fb50e1ca71db301ca9082befa6f16c55c4 upstream. Realtek Hub (0bda:0x0487) used in Dell Dock WD19 sometimes drops off the bus when bringing underlying ports from U3 to U0. Disabling LPM on the hub during setting link state is not enough, so let's disable LPM completely for this hub. Acked-by: Alan Stern Signed-off-by: Kai-Heng Feng Cc: stable Link: https://lore.kernel.org/r/20200205112633.25995-3-kai.heng.feng@canonical.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/quirks.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -378,6 +378,9 @@ static const struct usb_device_id usb_qu { USB_DEVICE(0x0b05, 0x17e0), .driver_info = USB_QUIRK_IGNORE_REMOTE_WAKEUP }, + /* Realtek hub in Dell WD19 (Type-C) */ + { USB_DEVICE(0x0bda, 0x0487), .driver_info = USB_QUIRK_NO_LPM }, + /* Action Semiconductor flash disk */ { USB_DEVICE(0x10d6, 0x2200), .driver_info = USB_QUIRK_STRING_FETCH_255 },