From: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
To: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: jeff@garzik.org, linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] ata: ahci: power off unused ports
Date: Thu, 8 May 2008 16:35:55 -0700 [thread overview]
Message-ID: <20080508163555.51380949@appleyard> (raw)
In-Reply-To: <20080508233713.GB15377@srcf.ucam.org>
On Fri, 9 May 2008 00:37:13 +0100
Matthew Garrett <mjg59@srcf.ucam.org> wrote:
> On Thu, May 08, 2008 at 04:10:08PM -0700, Kristen Carlson Accardi wrote:
>
> > +static int ahci_is_hotplug_capable(struct ata_port *ap)
> > +{
> > + void __iomem *port_mmio = ahci_port_base(ap);
> > + u8 cmd;
> > +
> > + if (!ahci_power_save)
> > + return 1;
> > +
> > + cmd = readl(port_mmio + PORT_CMD);
> > + return ((cmd & PORT_CMD_HPCP) || (cmd & PORT_CMD_ESP));
> > +}
>
> Just out of interest, is this set on laptop bays? (Are any of those even
> native SATA yet?)
I haven't seen any yet that are. Most of them are PATA. I expect
that will change in the future.
next prev parent reply other threads:[~2008-05-08 23:43 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-08 23:10 [PATCH] ata: ahci: power off unused ports Kristen Carlson Accardi
2008-05-08 23:37 ` Matthew Garrett
2008-05-08 23:35 ` Kristen Carlson Accardi [this message]
2008-05-09 0:14 ` Matthew Garrett
2008-05-09 0:28 ` Kristen Carlson Accardi
2008-05-09 15:58 ` Lennart Sorensen
2008-05-09 16:06 ` Matthew Garrett
2008-05-09 16:14 ` Lennart Sorensen
2008-05-09 17:14 ` Kristen Carlson Accardi
2008-05-09 15:06 ` Mark Lord
2008-05-09 15:28 ` Port control interface (was Re: [PATCH] ata: ahci: power off unused ports) Jeff Garzik
2008-05-27 3:08 ` [PATCH] ata: ahci: power off unused ports Theodore Tso
2008-05-27 21:32 ` Kristen Carlson Accardi
2008-05-27 22:59 ` Theodore Tso
2008-05-27 23:32 ` Kristen Carlson Accardi
2008-05-31 8:00 ` Pavel Machek
2008-06-01 19:16 ` Jeff Garzik
2008-06-02 7:04 ` Alan Cox
2008-06-02 7:43 ` Jeff Garzik
2008-06-02 8:22 ` Alan Cox
2008-06-02 9:48 ` Jeff Garzik
2008-06-02 13:54 ` Alan Cox
2008-06-02 16:55 ` Kristen Carlson Accardi
2008-06-02 13:03 ` Mark Lord
2008-06-02 16:07 ` Jeff Garzik
2008-06-02 17:00 ` Kristen Carlson Accardi
2008-06-02 17:45 ` Jeff Garzik
2008-06-02 17:47 ` Kristen Carlson Accardi
2008-06-02 18:15 ` Jeff Garzik
2008-06-02 18:16 ` Kristen Carlson Accardi
2008-06-02 18:30 ` Ric Wheeler
2008-06-02 18:40 ` Jeff Garzik
2008-06-02 18:49 ` Ric Wheeler
2008-06-02 18:52 ` Jeff Garzik
2008-06-02 20:00 ` Matthew Garrett
2008-06-02 18:38 ` Jeff Garzik
2008-06-03 16:49 ` Kristen Carlson Accardi
2008-06-02 17:07 ` Greg Freemyer
2008-06-02 16:57 ` Kristen Carlson Accardi
2008-06-02 17:44 ` Jeff Garzik
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