From mboxrd@z Thu Jan 1 00:00:00 1970 From: Len Brown Subject: [PATCH 24/37] ACPI: clear GPE earily in resume to avoid warning Date: Thu, 31 Jan 2008 23:36:55 -0500 Message-ID: <4e29bddd1bc13fe78da1d1a11dcb335f7fe36f6e.1201840183.git.len.brown@intel.com> References: <1201840628-23136-1-git-send-email-lenb@kernel.org> Return-path: Received: from mga10.intel.com ([192.55.52.92]:46275 "EHLO fmsmga102.fm.intel.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1757722AbYBAEl4 (ORCPT ); Thu, 31 Jan 2008 23:41:56 -0500 In-Reply-To: <1201840628-23136-1-git-send-email-lenb@kernel.org> In-Reply-To: References: Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: linux-pm@lists.linux-foundation.org Cc: linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, Shaohua Li , Len Brown From: Shaohua Li Wakeup GPE hasn't a handler. If system is waked up by such GPE like a USB hotplug, I saw a lot of error reporting the GPE hasn't handler. acpi_leave_sleep_state will clear the GPE but it's too late, we should do it before interrupt is re-enabled. Signed-off-by: Shaohua Li Acked-by: Rafael J. Wysocki Signed-off-by: Len Brown --- drivers/acpi/sleep/main.c | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-) diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c index cbfa058..96d23b3 100644 --- a/drivers/acpi/sleep/main.c +++ b/drivers/acpi/sleep/main.c @@ -146,6 +146,13 @@ static int acpi_pm_enter(suspend_state_t pm_state) if (ACPI_SUCCESS(status) && (acpi_state == ACPI_STATE_S3)) acpi_clear_event(ACPI_EVENT_POWER_BUTTON); + /* + * Disable and clear GPE status before interrupt is enabled. Some GPEs + * (like wakeup GPE) haven't handler, this can avoid such GPE misfire. + * acpi_leave_sleep_state will reenable specific GPEs later + */ + acpi_hw_disable_all_gpes(); + local_irq_restore(flags); printk(KERN_DEBUG "Back to C!\n"); -- 1.5.4.rc5.16.gc0279