From mboxrd@z Thu Jan 1 00:00:00 1970 From: mgreer@animalcreek.com (Mark A. Greer) Date: Thu, 17 Jan 2013 15:31:01 -0700 Subject: [PATCH] ARM: OMAP AM3517/05: hwmod data: block WFI when EMAC active In-Reply-To: References: <20130108204347.GC1876@animalcreek.com> Message-ID: <20130117223101.GB32446@animalcreek.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Thu, Jan 17, 2013 at 07:21:42PM +0000, Paul Walmsley wrote: > Hi Mark > > On Tue, 8 Jan 2013, Mark A. Greer wrote: > > > Sorry to nag but I think the comment needs to be updated to remove the > > sentence about the missing EMAC hwmod. > > You are absolutely right, and the correction is very much appreciated. > Updated patch follows. > > > - Paul > > From: Paul Walmsley > Date: Sun, 30 Dec 2012 10:36:36 -0700 > Subject: [PATCH] ARM: OMAP AM3517/05: hwmod data: block WFI when EMAC active > > According to Mark Greer, on OMAP AM3517/3505 chips, the EMAC is unable > to wake the ARM up from WFI: > > http://www.spinics.net/lists/arm-kernel/msg174734.html > > Further troubleshooting was unable to narrow the problem down. So we > don't have much choice other than to block WFI when the EMAC is active > with the HWMOD_BLOCK_WFI flag. > > Based on Mark's original patch. We're removing the omap_device-based > pm_lats code, so a different approach was needed. > > This third version contains some corrections thanks to Mark's review. > > Signed-off-by: Paul Walmsley > Cc: Mark A. Greer > --- FWIW, Acked-by: Mark A. Greer