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=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_2 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 60C75C31E40 for ; Mon, 12 Aug 2019 08:19:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 393B5206C2 for ; Mon, 12 Aug 2019 08:19:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727127AbfHLITw (ORCPT ); Mon, 12 Aug 2019 04:19:52 -0400 Received: from mx2.suse.de ([195.135.220.15]:44334 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727079AbfHLITw (ORCPT ); Mon, 12 Aug 2019 04:19:52 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 9B5AFAE34; Mon, 12 Aug 2019 08:19:51 +0000 (UTC) Message-ID: <1565597989.14671.3.camel@suse.com> Subject: Re: [PATCH] xhci: wait CNR when doing xhci resume From: Oliver Neukum To: Rick Tseng , mathias.nyman@intel.com, gregkh@linuxfoundation.org Cc: linux-usb@vger.kernel.org Date: Mon, 12 Aug 2019 10:19:49 +0200 In-Reply-To: <1565594692-23683-1-git-send-email-rtseng@nvidia.com> References: <1565594692-23683-1-git-send-email-rtseng@nvidia.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.26.6 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Am Montag, den 12.08.2019, 15:24 +0800 schrieb Rick Tseng: > From: Rick > > NVIDIA 3.1 xHCI card would lose power when moving power state into D3Cold. > Thus we need to wait CNR bit to clear when xhci resmue as xhci init. Should any controller have CNR set? Why is this specific to a vendor? Regards Oliver