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Message-ID: <20080508172859.4b0cd9af@appleyard> Date: Thu, 8 May 2008 17:28:59 -0700 From: Kristen Carlson Accardi <kristen.c.accardi@...el.com> To: Matthew Garrett <mjg59@...f.ucam.org> Cc: jeff@...zik.org, linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH] ata: ahci: power off unused ports On Fri, 9 May 2008 01:14:58 +0100 Matthew Garrett <mjg59@...f.ucam.org> wrote: > On Thu, May 08, 2008 at 04:35:55PM -0700, Kristen Carlson Accardi wrote: > > On Fri, 9 May 2008 00:37:13 +0100 > > Matthew Garrett <mjg59@...f.ucam.org> wrote: > > > 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. > > Yeah. My vague concern would be that on laptops, we can probably power > down the port even if it's declared as being hotplug capable - we'll > probably get an out of band signal from ACPI anyway. Not an issue at the > moment, but possibly something we'll hit in future. > well - when drive bays on laptops are able to be controlled by AHCI, they may not actually use _EJ0 or send notifications anymore, since ACPI will not longer be necessary for hotplugging. We'll have to see what happens. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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