From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nishanth Menon Subject: Re: [PATCH 0/2] bus: omap_l3_noc: Add resume hook to restore mask registers Date: Mon, 10 Nov 2014 09:29:25 -0600 Message-ID: <5460D9D5.2040108@ti.com> References: <1415595784-5646-1-git-send-email-j-keerthy@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: 7bit Return-path: Received: from bear.ext.ti.com ([192.94.94.41]:37416 "EHLO bear.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752787AbaKJP3a (ORCPT ); Mon, 10 Nov 2014 10:29:30 -0500 In-Reply-To: <1415595784-5646-1-git-send-email-j-keerthy@ti.com> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: Keerthy , linux-omap@vger.kernel.org Cc: tony@atomide.com On 11/09/2014 11:03 PM, Keerthy wrote: > l3_noc module loses context during both DS0 and RTC+DDR in self refresh modes. > This causes the previously masked l3 interrupts to trigger and the software > book keeping assumes the interrupts are masked and does nothing to mask. > This software/hardware out of sync leads to back to back l3 interrupts > and eventually causes a hang. Hence adding resume hook to restore the > mask registers based on the book keeping variables > > Keerthy (2): > bus: omap_l3_noc: Add resume hook to restore context minor comment on this patch, > bus: omap_l3_noc: Correct returning IRQ_HANDLED unconditionally in > the irq handler > > drivers/bus/omap_l3_noc.c | 63 +++++++++++++++++++++++++++++++++++++++++++-- > 1 file changed, 61 insertions(+), 2 deletions(-) > Otherwise: Acked-by: Nishanth Menon yep, AM437x did bring out some interesting surprises :(... thanks for catching them. -- Regards, Nishanth Menon