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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 7297EC4361B for ; Tue, 8 Dec 2020 09:38:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2DEB223A84 for ; Tue, 8 Dec 2020 09:38:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727815AbgLHJiw (ORCPT ); Tue, 8 Dec 2020 04:38:52 -0500 Received: from mail.kernel.org ([198.145.29.99]:44888 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727193AbgLHJiw (ORCPT ); Tue, 8 Dec 2020 04:38:52 -0500 Date: Tue, 8 Dec 2020 10:39:19 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1607420291; bh=uXVXr8V5MoxbQwULnMEUI/UL4zWwl6hY2nFTRCM5Vwk=; h=From:To:Cc:Subject:References:In-Reply-To:From; b=FFjqMOANQmdQgwTH5wi2E3nKB36STztUTednoAzpTzIoy5mxiGBZ0wY7PdDpdV91J U+m55eHHaWUq/k7MPou4W5iLOS59/Ynw11Rl6kixqGaIdteAp4f/tRgJzqXWwweyuY k0DAzSUcife/aO6anPrJ5d4hhygVPjGrKEIBhVpE= From: Greg KH To: Mathias Nyman Cc: linux-usb@vger.kernel.org, Mika Westerberg Subject: Re: [PATCH 4/5] xhci-pci: Allow host runtime PM as default for Intel Maple Ridge xHCI Message-ID: References: <20201208092912.1773650-1-mathias.nyman@linux.intel.com> <20201208092912.1773650-5-mathias.nyman@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201208092912.1773650-5-mathias.nyman@linux.intel.com> Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org 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? thanks, greg k-h