From: Tejun Heo <tj@kernel.org>
To: Suman Tripathi <stripathi@apm.com>
Cc: Olof Johansson <olof@lixom.net>, Arnd Bergmann <arnd@arndb.de>,
Linux SCSI List <linux-scsi@vger.kernel.org>,
"linux-ide@vger.kernel.org" <linux-ide@vger.kernel.org>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
Mark Langsdorf <mlangsdo@redhat.com>,
Jon Masters <jcm@redhat.com>, patches <patches@apm.com>
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 [thread overview]
Message-ID: <20150505131854.GJ1971@htj.duckdns.org> (raw)
In-Reply-To: <CAOHikRBeM3MYohDgYgbLL1uhZp+Ch4hS+eduDVbx759321=EHg@mail.gmail.com>
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
next prev parent reply other threads:[~2015-05-05 13:18 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-03 15:33 [PATCH v3 0/2] ata: ahci_xgene: Add support for 2nd HW version of APM X-Gene SoC AHCI SATA Host controller driver Suman Tripathi
[not found] ` <1430667220-23477-1-git-send-email-stripathi-qTEPVZfXA3Y@public.gmane.org>
2015-05-03 15:33 ` [PATCH v3 1/2] libahci: Add support to handle HOST_IRQ_STAT as edge trigger latch Suman Tripathi
2015-05-04 13:08 ` Sergei Shtylyov
2015-05-04 15:47 ` Tejun Heo
2015-05-04 16:43 ` Suman Tripathi
2015-05-04 18:26 ` Tejun Heo
2015-05-05 5:55 ` Suman Tripathi
2015-05-05 13:18 ` Tejun Heo [this message]
2015-05-03 15:33 ` [PATCH v3 2/2] ata: ahci_xgene: Add AHCI Support for 2nd HW version of APM X-Gene SoC AHCI SATA Host controller Suman Tripathi
2015-05-04 0:26 ` Julian Calaby
2015-05-04 2:51 ` Suman Tripathi
2015-05-04 3:22 ` Julian Calaby
[not found] ` <CAGRGNgX8d0vMDzTH2mPnkwgBk7RJGWVReSyMC3nS=G0z0XvdYQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-05-04 4:33 ` Suman Tripathi
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