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=-15.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 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 EF6FEC4167B for ; Tue, 8 Dec 2020 11:21:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B27A923A1D for ; Tue, 8 Dec 2020 11:21:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728974AbgLHLVN (ORCPT ); Tue, 8 Dec 2020 06:21:13 -0500 Received: from mga07.intel.com ([134.134.136.100]:30635 "EHLO mga07.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726226AbgLHLVN (ORCPT ); Tue, 8 Dec 2020 06:21:13 -0500 IronPort-SDR: dqbDZLJSOQm3M8d/au7G8IEfPbAC/wlP6MkDY9amjfLFyD5O5JYnXtUh9s51hHGNid8/dYbVVU lLUEx/t6MPrg== X-IronPort-AV: E=McAfee;i="6000,8403,9828"; a="237976278" X-IronPort-AV: E=Sophos;i="5.78,402,1599548400"; d="scan'208";a="237976278" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Dec 2020 03:19:27 -0800 IronPort-SDR: PxjWPJuPrT3boNzdXZ+9iVgAFRyA1lVlPA8ypy6gkNZdHSVqINjcHHDMZvwM42NwFvFSgUroEV 3Cmd00Kdtr+w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.78,402,1599548400"; d="scan'208";a="347858542" Received: from mattu-haswell.fi.intel.com (HELO [10.237.72.170]) ([10.237.72.170]) by orsmga002.jf.intel.com with ESMTP; 08 Dec 2020 03:19:25 -0800 Subject: Re: [PATCH 4/5] xhci-pci: Allow host runtime PM as default for Intel Maple Ridge xHCI To: Greg KH Cc: linux-usb@vger.kernel.org, Mika Westerberg References: <20201208092912.1773650-1-mathias.nyman@linux.intel.com> <20201208092912.1773650-5-mathias.nyman@linux.intel.com> From: Mathias Nyman Autocrypt: addr=mathias.nyman@linux.intel.com; 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Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org On 8.12.2020 11.39, Greg KH wrote: > On Tue, Dec 08, 2020 at 11:29:11AM +0200, Mathias Nyman wrote: >> From: Mika Westerberg >> >> Intel Maple Ridge is successor of Titan Ridge Thunderbolt controller. As >> Titan Ridge this one also includes xHCI host controller. In order to >> safe energy we should put it to low power state by default when idle. >> For this reason allow host runtime PM for Maple Ridge. >> >> Signed-off-by: Mika Westerberg >> Signed-off-by: Mathias Nyman >> --- >> drivers/usb/host/xhci-pci.c | 4 +++- >> 1 file changed, 3 insertions(+), 1 deletion(-) > > Should this be backported to stable kernels too? I guess that wouldn't hurt. Hardware is fresh but distros probably base their releases on older stable kernels. This would enable xhci runtime pm as default on those as well Thanks Mathias