From: Tony Lindgren <tony@atomide.com> To: Hans de Goede <hdegoede@redhat.com>, Jacek Anaszewski <j.anaszewski@samsung.com> 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 Date: Wed, 9 Nov 2016 12:23:02 -0700 [thread overview] Message-ID: <20161109192301.GS26979@atomide.com> (raw) 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
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From: tony@atomide.com (Tony Lindgren) To: linux-arm-kernel@lists.infradead.org Subject: PM regression with LED changes in next-20161109 Date: Wed, 9 Nov 2016 12:23:02 -0700 [thread overview] Message-ID: <20161109192301.GS26979@atomide.com> (raw) 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
next reply other threads:[~2016-11-09 19:23 UTC|newest] Thread overview: 102+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-11-09 19:23 Tony Lindgren [this message] 2016-11-09 19:23 ` PM regression with LED changes in next-20161109 Tony Lindgren 2016-11-09 20:45 ` Jacek Anaszewski 2016-11-09 20:45 ` Jacek Anaszewski 2016-11-10 8:49 ` Hans de Goede 2016-11-10 8:49 ` Hans de Goede 2016-11-10 12:56 ` Jacek Anaszewski 2016-11-10 12:56 ` Jacek Anaszewski 2016-11-10 13:04 ` Hans de Goede 2016-11-10 13:04 ` Hans de Goede 2016-11-10 13:55 ` Jacek Anaszewski 2016-11-10 13:55 ` Jacek Anaszewski 2016-11-10 16:36 ` Pavel Machek 2016-11-10 16:36 ` Pavel Machek 2016-11-10 16:29 ` Pavel Machek 2016-11-10 16:29 ` Pavel Machek 2016-11-10 16:44 ` Hans de Goede 2016-11-10 16:44 ` Hans de Goede 2016-11-10 20:48 ` Pavel Machek 2016-11-10 20:48 ` Pavel Machek 2016-11-11 8:25 ` Hans de Goede 2016-11-11 8:25 ` Hans de Goede 2016-11-10 17:55 ` Tony Lindgren 2016-11-10 17:55 ` Tony Lindgren 2016-11-10 20:29 ` Pavel Machek 2016-11-10 20:29 ` Pavel Machek 2016-11-10 21:34 ` Jacek Anaszewski 2016-11-10 21:34 ` Jacek Anaszewski 2016-11-11 12:01 ` Pavel Machek 2016-11-11 12:01 ` Pavel Machek 2016-11-11 17:03 ` Jacek Anaszewski 2016-11-11 17:03 ` Jacek Anaszewski 2016-11-11 19:28 ` Hans de Goede 2016-11-11 19:28 ` Hans de Goede 2016-11-11 22:12 ` Pavel Machek 2016-11-11 22:12 ` Pavel Machek 2016-11-12 8:03 ` Hans de Goede 2016-11-12 8:03 ` Hans de Goede 2016-11-13 9:10 ` Three different LED brightnesses (was Re: PM regression with LED changes in next-20161109) Pavel Machek 2016-11-13 9:10 ` Pavel Machek 2016-11-13 9:44 ` Hans de Goede 2016-11-13 9:44 ` Hans de Goede 2016-11-13 20:45 ` Pavel Machek 2016-11-13 20:45 ` Pavel Machek 2016-11-12 10:24 ` PM regression with LED changes in next-20161109 Jacek Anaszewski 2016-11-12 10:24 ` Jacek Anaszewski 2016-11-12 10:33 ` Hans de Goede 2016-11-12 10:33 ` Hans de Goede 2016-11-12 10:33 ` Hans de Goede 2016-11-12 19:14 ` Jacek Anaszewski 2016-11-12 19:14 ` Jacek Anaszewski 2016-11-12 21:14 ` Hans de Goede 2016-11-12 21:14 ` Hans de Goede 2016-11-13 11:44 ` Jacek Anaszewski 2016-11-13 11:44 ` Jacek Anaszewski 2016-11-13 13:52 ` Hans de Goede 2016-11-13 13:52 ` Hans de Goede 2016-11-14 9:12 ` Jacek Anaszewski 2016-11-14 9:12 ` Jacek Anaszewski 2016-11-14 9:12 ` Jacek Anaszewski 2016-11-14 12:51 ` Hans de Goede 2016-11-14 12:51 ` Hans de Goede 2016-11-15 10:01 ` Jacek Anaszewski 2016-11-15 10:01 ` Jacek Anaszewski 2016-11-15 10:09 ` Hans de Goede 2016-11-15 10:09 ` Hans de Goede 2016-11-15 10:31 ` LEDs that change brightness "itself" -- that's a trigger. " Pavel Machek 2016-11-15 10:31 ` Pavel Machek 2016-11-15 10:58 ` Jacek Anaszewski 2016-11-15 10:58 ` Jacek Anaszewski 2016-11-15 11:11 ` Pavel Machek 2016-11-15 11:11 ` Pavel Machek 2016-11-15 11:21 ` Hans de Goede 2016-11-15 11:21 ` Hans de Goede 2016-11-15 11:48 ` Pavel Machek 2016-11-15 11:48 ` Pavel Machek 2016-11-15 12:06 ` Hans de Goede 2016-11-15 12:06 ` Hans de Goede 2016-11-15 12:11 ` Pavel Machek 2016-11-15 12:11 ` Pavel Machek 2016-11-15 13:28 ` Jacek Anaszewski 2016-11-15 13:28 ` Jacek Anaszewski 2016-11-15 13:48 ` Hans de Goede 2016-11-15 13:48 ` Hans de Goede 2016-11-15 14:04 ` Jacek Anaszewski 2016-11-15 14:04 ` Jacek Anaszewski 2016-11-15 14:30 ` Hans de Goede 2016-11-15 14:30 ` Hans de Goede 2016-11-15 14:41 ` Jacek Anaszewski 2016-11-15 14:41 ` Jacek Anaszewski 2016-11-17 22:12 ` Hans de Goede 2016-11-17 22:12 ` Hans de Goede 2016-11-15 11:17 ` Hans de Goede 2016-11-15 11:17 ` Hans de Goede 2016-11-14 8:31 ` Pavel Machek 2016-11-14 8:31 ` Pavel Machek 2016-11-11 22:06 ` Pavel Machek 2016-11-11 22:06 ` Pavel Machek 2016-11-10 8:34 ` Hans de Goede 2016-11-10 8:34 ` Hans de Goede 2016-11-10 15:11 ` Tony Lindgren 2016-11-10 15:11 ` Tony Lindgren
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