Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753455AbcKITXL (ORCPT ); Wed, 9 Nov 2016 14:23:11 -0500 Received: from muru.com ([72.249.23.125]:58340 "EHLO muru.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752699AbcKITXG (ORCPT ); Wed, 9 Nov 2016 14:23:06 -0500 Date: Wed, 9 Nov 2016 12:23:02 -0700 From: Tony Lindgren To: Hans de Goede , Jacek Anaszewski Cc: linux-leds@vger.kernel.org, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: PM regression with LED changes in next-20161109 Message-ID: <20161109192301.GS26979@atomide.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.7.1 (2016-10-04) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 428 Lines: 15 Hi, Looks like commit 883d32ce3385 ("leds: core: Add support for poll()ing the sysfs brightness attr for changes.") breaks runtime PM for me. On my omap dm3730 based test system, idle power consumption is over 70 times higher now with this patch! It goes from about 6mW for the core system to over 440mW during idle meaning there's some busy timer now active. Reverting this patch fixes the issue. Any ideas? Regards, Tony