From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg Kroah-Hartman Subject: Re: [RFC PATCH] ACPI / serial: Add UART change_pm support with ACPI power domain Date: Wed, 6 Feb 2013 11:07:28 -0800 Message-ID: <20130206190728.GA32275@kroah.com> References: <69483f548e2d5476b8e1ce530e6910bfbf770d3d.1360131884.git.lv.zheng@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mail-pa0-f41.google.com ([209.85.220.41]:57902 "EHLO mail-pa0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756615Ab3BFTHc (ORCPT ); Wed, 6 Feb 2013 14:07:32 -0500 Received: by mail-pa0-f41.google.com with SMTP id fb11so996395pad.28 for ; Wed, 06 Feb 2013 11:07:31 -0800 (PST) Content-Disposition: inline In-Reply-To: <69483f548e2d5476b8e1ce530e6910bfbf770d3d.1360131884.git.lv.zheng@intel.com> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Lv Zheng Cc: Jiri Slaby , Alan Cox , "Rafael J. Wysocki" , Len Brown , Mika Westerberg , Krogerus Heikki , linux-acpi@vger.kernel.org, linux-serial@vger.kernel.org On Wed, Feb 06, 2013 at 02:26:26PM +0800, Lv Zheng wrote: > This patch enables ACPI power domain on UART user devices. With this > patch, Linux can achieve open/close based ACPI power manageability for > UART tty ports. So you are going to be sticking acpi_* calls into common core places all over the kernel for stuff like this? What's wrong with using the existing pm callbacks that are there for all platforms to use? greg k-h