From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nishanth Menon Subject: Re: omap4 ehci sporadic resume issue Date: Tue, 2 Jul 2013 09:57:28 -0500 Message-ID: <20130702145727.GA4018@kahuna> References: <51CC5105.4070301@ti.com> <20130627175623.GB21364@panicking> <20130627192413.GA14115@panicking> <20130628113314.GA25536@panicking> <51CD7783.8030907@ti.com> <20130628164751.GA1281@panicking> <51D2E6DA.6030000@ti.com> <51D2E88A.7050202@amarulasolutions.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Return-path: Received: from devils.ext.ti.com ([198.47.26.153]:51925 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752977Ab3GBO5a (ORCPT ); Tue, 2 Jul 2013 10:57:30 -0400 Content-Disposition: inline In-Reply-To: <51D2E88A.7050202@amarulasolutions.com> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: Michael Trimarchi Cc: Roger Quadros , Ruslan Bilovol , USB list , Linux OMAP Mailing List , Alan Stern On 16:49-20130702, Michael Trimarchi wrote: > Last question: > If one domain is in RET mode and not OFF mode what happen during SAR restore in OFF mode? Without going to the depth of what TRM says already: SAR comes into play only if device-off sequence was triggered. Depending on which domain and what level of retention state was programmed, device-off sequence may not even start. Note: Generically speaking, not achieving device OFF may not mean other powerdomains cannot achieve OFF and loose context. Specific example of USB tied on core domain, the behavior could be different. -- Regards, Nishanth Menon