From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: [PATCH v3 1/2] libahci: Add support to handle HOST_IRQ_STAT as edge trigger latch. Date: Tue, 5 May 2015 09:18:54 -0400 Message-ID: <20150505131854.GJ1971@htj.duckdns.org> References: <1430667220-23477-1-git-send-email-stripathi@apm.com> <1430667220-23477-2-git-send-email-stripathi@apm.com> <20150504154726.GA1971@htj.duckdns.org> <20150504182618.GG1971@htj.duckdns.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-scsi-owner@vger.kernel.org To: Suman Tripathi Cc: Olof Johansson , Arnd Bergmann , Linux SCSI List , "linux-ide@vger.kernel.org" , "devicetree@vger.kernel.org" , linux-arm-kernel , Mark Langsdorf , Jon Masters , patches List-Id: devicetree@vger.kernel.org On Tue, May 05, 2015 at 11:25:14AM +0530, Suman Tripathi wrote: > Yeah it's very simple. The clearing of irq_stat needs to move up. > That's it. tried and it worked. Thanks a lot !! > Just a quick question : Why edge trigger handling is not yet present > in libahci yet? I mean no one has used it yet ?? Yeah, no other ahci controller uses edge triggered latches. I think ahci spec says irq is supposed to be level triggered. Thanks. -- tejun