From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754623Ab3BCPK4 (ORCPT ); Sun, 3 Feb 2013 10:10:56 -0500 Received: from shadbolt.e.decadent.org.uk ([88.96.1.126]:34388 "EHLO shadbolt.e.decadent.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754504Ab3BCO4q (ORCPT ); Sun, 3 Feb 2013 09:56:46 -0500 Message-Id: <20130203144650.239683596@decadent.org.uk> User-Agent: quilt/0.60-1 Date: Sun, 03 Feb 2013 15:47:54 +0100 From: Ben Hutchings To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: akpm@linux-foundation.org, Thomas Schlichter , "Rafael J. Wysocki" Subject: [ 070/128] ACPI / processor: Get power info before updating the C-states In-Reply-To: <20130203144644.035172954@decadent.org.uk> X-SA-Exim-Connect-IP: 151.216.67.5 X-SA-Exim-Mail-From: ben@decadent.org.uk X-SA-Exim-Scanned: No (on shadbolt.decadent.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.2-stable review patch. If anyone has any objections, please let me know. ------------------ From: Thomas Schlichter commit f427e5f1cf75bba84cccdac1d8a90552d9ae1065 upstream. acpi_processor_get_power_info() has to be called before acpi_processor_setup_cpuidle_states() to have the latest information available. This fixes the missing C-state information after AC-->DC transition. Signed-off-by: Thomas Schlichter Signed-off-by: Rafael J. Wysocki Signed-off-by: Ben Hutchings --- drivers/acpi/processor_idle.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index fea6f8d..ed9a1cc 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -1152,6 +1152,7 @@ int acpi_processor_cst_has_changed(struct acpi_processor *pr) } /* Populate Updated C-state information */ + acpi_processor_get_power_info(pr); acpi_processor_setup_cpuidle_states(pr); /* Enable all cpuidle devices */