From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753028AbaCFDtb (ORCPT ); Wed, 5 Mar 2014 22:49:31 -0500 Received: from mga11.intel.com ([192.55.52.93]:5904 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752046AbaCFDta (ORCPT ); Wed, 5 Mar 2014 22:49:30 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.97,597,1389772800"; d="scan'208";a="493227678" Message-ID: <5317F044.8080407@linux.intel.com> Date: Wed, 05 Mar 2014 19:49:24 -0800 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.3.0 MIME-Version: 1.0 To: "Li, Aubrey" , Matthew Garrett , mingo@redhat.com, tglx@linutronix.de, linux-kernel@vger.kernel.org, "alan@linux.intel.com" Subject: Re: [PATCH] x86: new Intel Atom SoC power management controller driver References: <5317EC0C.4010807@linux.intel.com> In-Reply-To: <5317EC0C.4010807@linux.intel.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 03/05/2014 07:31 PM, Li, Aubrey wrote: > The Power Management Controller (PMC) controls many of the power > management features present in the SoC. This driver provides > interface to configure the Power Management Controller (PMC). > > This driver exposes PMC device state and sleep state residency > via debugfs for observation: > /sys/kernel/debugfs/pmc_atom/dev_state > /sys/kernel/debugfs/pmc_atom/sleep_state > > This driver also provides a native power off function via PMC PCI > IO port. > What is the reason for putting this in debugfs? -hpa