From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lv Zheng Subject: [PATCH 0/6] ACPI/EC: Cleanups of command flushing and event polling. Date: Mon, 3 Nov 2014 13:16:07 +0800 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Return-path: Sender: linux-kernel-owner@vger.kernel.org To: "Rafael J. Wysocki" , Len Brown Cc: Lv Zheng , Lv Zheng , linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org List-Id: linux-acpi@vger.kernel.org This patchset contains 2 cleanups related to the EC driver: 1. Command flushing This patchset flushes EC commands before suspending/resuming, so that there won't be timeout for the incomplete commands after resuming. 2. Event polling thread It is not proper to send QR_EC command using the same work queue as the _Qxx/_Lxx/_Exx evaluations. This patchset moves the QR_EC issuing to a seperate thread. This also allows us to extend the EC driver in the future to be aware of the events even when SCI_EVT is failed to be set by the firmware. This patchset is split from an EC GPE storming prevention enhancement series. The original discussion can be found at: http://www.spinics.net/lists/linux-acpi/msg51698.html Lv Zheng (6): ACPI/EC: Introduce STARTED/STOPPED flags to replace BLOCKED flag. ACPI/EC: Enhance the checks to apply to QR_EC transactions. ACPI/EC: Add reference counting for query handlers. ACPI/EC: Add command flushing support. ACPI/EC: Cleanup QR_SC command processing by adding a kernel thread to poll EC events. ACPI/EC: Add GPE reference counting debugging messages. drivers/acpi/ec.c | 379 ++++++++++++++++++++++++++++++++++++++--------- drivers/acpi/internal.h | 2 + 2 files changed, 313 insertions(+), 68 deletions(-) -- 1.7.10