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Date: Wed, 21 May 2014 15:08:07 -0700 From: Tony Lindgren <tony@...mide.com> To: Sebastian Reichel <sre@...nel.org> Cc: Linus Walleij <linus.walleij@...aro.org>, Shubhrajyoti Datta <omaplinuxkernel@...il.com>, Carlos Chinea <cch.devel@...il.com>, Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>, Mark Rutland <mark.rutland@....com>, Kumar Gala <galak@...eaurora.org>, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org, Pali Rohár <pali.rohar@...il.com>, Ивайло Димитров <freemangordon@....bg>, Joni Lapilainen <joni.lapilainen@...il.com>, Aaro Koskinen <aaro.koskinen@....fi>, Pavel Machek <pavel@....cz>, Paul Walmsley <paul@...an.com> Subject: Re: [PATCHv5 09/10] DTS: ARM: OMAP3-N900: Add SSI support * Sebastian Reichel <sre@...nel.org> [140521 14:51]: > On Wed, May 21, 2014 at 12:45:28PM -0700, Tony Lindgren wrote: > > Right. The only documentation of the SSI module is existing > code sent by Carlos / included in the maemo kernel. That's probably better than any documentation though :) > > > It's probably something with the sysc or idlemodes that > > > keeps things from idling. Maybe wrong address? Or wrong > > > flags? I'm pretty sure it was the first .dts patch out of > > > these two as the second one alone did not apply. > > > > Hmm yeah below is probably how it should be, does this > > work for you? With this fix applied and your ssi dts > > patches n900 keeps hitting off-idle for me. > > I can confirm, that the N900 hits idle states when the DT > patch and the hwmod patch is applied. I have not actually > tested if it also works without your hwmod patch. > > There are still problems with the idle state if the driver is > actually loaded (and I see 100% runtime pm usage in powertop), > but that can be fixed later. > > Feel free to add Tested-by/Acked-By to the hwmod patch. OK thanks for testing. I'll apply your dts changes as soon as I have an ack from Paul on the hwmod changes. Probably best to queue them together to avoid PM breaking. Regards, Tony -- 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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