From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lv Zheng Subject: [PATCH 0/2] ACPICA: Events: Fix GPE enabling issues related to edge-triggered GPEs Date: Fri, 11 Aug 2017 13:57:23 +0800 Message-ID: Return-path: Received: from mga02.intel.com ([134.134.136.20]:53819 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750815AbdHKF5a (ORCPT ); Fri, 11 Aug 2017 01:57:30 -0400 Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: "Rafael J . Wysocki" , Len Brown , Robert Moore , Lv Zheng , "David E . Box" Cc: Lv Zheng , linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, devel@acpica.org There are 2 issues related to the enabling of GPEs: 1. Currently, our code clears GPE before enabling it. In case of edge triggered GPEs, doing this risks GPE losses. 2. For edge-triggered GPEs, enabling it is not sufficiently to trigger an already triggered GPE, we need to poll the GPE once it is enabled. This patchset fixes these 2 problems. Lv Zheng (2): ACPICA: Events: Stop unconditionally clearing ACPI IRQs during suspend/resume ACPICA: Events: Dispatch GPEs after enabling for the first time drivers/acpi/acpica/evgpe.c | 7 ------- drivers/acpi/acpica/evxfgpe.c | 22 ++++++++++++++++++++++ drivers/acpi/acpica/hwgpe.c | 1 - drivers/acpi/acpica/hwsleep.c | 11 ++--------- drivers/acpi/acpica/hwxfsleep.c | 2 +- 5 files changed, 25 insertions(+), 18 deletions(-) -- 2.7.4