Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752113AbdHEPSc (ORCPT ); Sat, 5 Aug 2017 11:18:32 -0400 Received: from mail-pf0-f173.google.com ([209.85.192.173]:36439 "EHLO mail-pf0-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751436AbdHEPSa (ORCPT ); Sat, 5 Aug 2017 11:18:30 -0400 Subject: Re: [PATCH] platform/x86: ideapad-laptop: Expose conservation mode switch To: Andy Shevchenko Cc: Platform Driver , "linux-kernel@vger.kernel.org" , Darren Hart , Ike Panhc References: <264a8ced-4336-06b9-d760-babc08ccde5c@angelsl.xyz> From: Hao Wei Tee Message-ID: Date: Sat, 5 Aug 2017 23:18:26 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:55.0) Gecko/20100101 Thunderbird/55.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-GB Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 883 Lines: 21 On 30/5/2017 21:22, Andy Shevchenko wrote: > On Sun, May 28, 2017 at 4:47 PM, Hao Wei Tee wrote: >> On 5/27/17 3:31 PM, Hao Wei Tee wrote: >>> This exposes the battery conservation mode present on some (?) IdeaPads. >>> The mode is set by calling ACPI method SBMC with argument 3 (on) or >>> 5 (off). Status is reported in bit 5 of the return value of ACPI method >>> GBMD. >>> >>> This patch was written based on an IdeaPad U430p. I'm not sure if the ACPI >>> methods are the same across all IdeaPads, so it would be great if this got more >>> testing across other models before it's merged. >> >> I got someone to test on an IdeaPad Y510p. It works on that too. > > Do we have any other option that expose something via sysfs? It's been 2 months, what can I do to get this patch merged, or alternatively some other way of exposing this switch? -- Hao Wei