From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:38779 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754573AbcHCFYR (ORCPT ); Wed, 3 Aug 2016 01:24:17 -0400 Subject: Patch "pinctrl: single: Fix missing flush of posted write for a wakeirq" has been added to the 3.14-stable tree To: tony@atomide.com, gregkh@linuxfoundation.org, linus.walleij@linaro.org, nm@ti.com Cc: , From: Date: Wed, 03 Aug 2016 07:23:57 +0200 Message-ID: <147020183778165@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled pinctrl: single: Fix missing flush of posted write for a wakeirq to the 3.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: pinctrl-single-fix-missing-flush-of-posted-write-for-a-wakeirq.patch and it can be found in the queue-3.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 0ac3c0a4025f41748a083bdd4970cb3ede802b15 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Tue, 31 May 2016 14:17:06 -0700 Subject: pinctrl: single: Fix missing flush of posted write for a wakeirq From: Tony Lindgren commit 0ac3c0a4025f41748a083bdd4970cb3ede802b15 upstream. With many repeated suspend resume cycles, the pin specific wakeirq may not always work on omaps. This is because the write to enable the pin interrupt may not have reached the device over the interconnect before suspend happens. Let's fix the issue with a flush of posted write with a readback. Reported-by: Nishanth Menon Signed-off-by: Tony Lindgren Signed-off-by: Linus Walleij Signed-off-by: Greg Kroah-Hartman --- drivers/pinctrl/pinctrl-single.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/pinctrl/pinctrl-single.c +++ b/drivers/pinctrl/pinctrl-single.c @@ -1616,6 +1616,9 @@ static inline void pcs_irq_set(struct pc else mask &= ~soc_mask; pcs->write(mask, pcswi->reg); + + /* flush posted write */ + mask = pcs->read(pcswi->reg); raw_spin_unlock(&pcs->lock); } Patches currently in stable-queue which might be from tony@atomide.com are queue-3.14/pinctrl-single-fix-missing-flush-of-posted-write-for-a-wakeirq.patch