From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753908AbbALXMB (ORCPT ); Mon, 12 Jan 2015 18:12:01 -0500 Received: from mail-yh0-f51.google.com ([209.85.213.51]:41871 "EHLO mail-yh0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752169AbbALXL6 (ORCPT ); Mon, 12 Jan 2015 18:11:58 -0500 Message-ID: <54B454B8.4000202@gmail.com> Date: Mon, 12 Jan 2015 15:11:52 -0800 From: Florian Fainelli User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.3.0 MIME-Version: 1.0 To: Gregory Fong , Brian Norris CC: Russell King , "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" Subject: Re: [PATCH] ARM: brcmstb: update CPU power management sequence References: <1418786030-23455-1-git-send-email-computersforpeace@gmail.com> In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 17/12/14 15:25, Gregory Fong wrote: > On Tue, Dec 16, 2014 at 7:13 PM, Brian Norris > wrote: >> The automatic CPU power state machine for B15 CPUs does not work >> reliably as-is. This patch implements a manual sequence in software to >> replace it. >> >> This was tested successfully with over 10,000 hotplug cycles of >> something like this: >> >> echo 0 > /sys/devices/system/cpu/cpu1/online >> echo 1 > /sys/devices/system/cpu/cpu1/online >> >> whereas the existing sequence often locks up after a few hundred cycles. >> >> Fixes: 62639c2f5332 ("ARM: brcmstb: reintroduce SMP support") >> Signed-off-by: Brian Norris > > Acked-by: Gregory Fong > Applied, and queued up for 3.20, thanks! -- Florian