Received: by 2002:ad5:474a:0:0:0:0:0 with SMTP id i10csp10175211imu; Wed, 5 Dec 2018 17:57:08 -0800 (PST) X-Google-Smtp-Source: AFSGD/UWNPQxObXW/bElIB/0SrhjpVudbPlgWbLfw+7r8m4exTK3Nl/8DWK63qXaQ33UQwkxLoSV X-Received: by 2002:a63:2c82:: with SMTP id s124mr22033332pgs.73.1544061428216; Wed, 05 Dec 2018 17:57:08 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1544061428; cv=none; d=google.com; s=arc-20160816; b=mrGCSu/aTwOrQdnRPKJ3jy4rSrUHMbR9NLtAsQpMU9wc1JAM673OEKW0e98KBgid3d 1IEVJ0/yqnN5trw7BZxDAERCA37+xDzUMr9zy/kLsX+Ob5ujHDAIreq7RidzNhdH2Yyq EK6pQzdU0Gc+t/3R1wsVEUPvO5OrydjGbP8Lzg4onKzJ5JgIqgZ4maHzTSdKErlMxaDN hCJgN8nx1lsz1M9Uj7ktti+R6twwOhsVb6eXtqinfvv/Gosg5MZRdtnLesU2YkEfzJow op/0rzZmDCbzCaq7COIrWqBSoeNQvQtWLKKLhPBBekcdFneaOQvnf8LJILMItrIiSn46 iOtg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:dkim-signature; bh=UmKfjQYCnA3H2RwWOC4/eu5wLhD205v1NqCp5Ph3kwE=; b=HeU6HoxmXeRtO0tBPuI5koApk00MV2hbW/rhAe2VJwclbOxDlHweK5vxFj0xm5Qpfr tJwU7RYRx8/SQkohqy/VxBQWZC8j7c4q6tcCD00H7AW2QN4lFTJ0QVBjKlg5np4vQyJv VuojtEcz0YPCCWMIysB5r6xGM/DkfJbS4sNBsEz+dA4bx/bnPqmdgxZO41ENGHAVsPSz NUN9hYiFwjNdmjuKyU+10iQOlSi6/psuG5TKBF2C27Cf+vOGKrycE0bgfLjhXu/tcwXy o527i6Exnj23XSaqnn7+51MDI4L91afMBKISrOjQbEggNTup3ts3p5VBg3UGmaoBlte3 E3ug== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=KBxaouHk; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id cb1si23362786plb.37.2018.12.05.17.56.52; Wed, 05 Dec 2018 17:57:08 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=KBxaouHk; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728742AbeLFB4Q (ORCPT + 99 others); Wed, 5 Dec 2018 20:56:16 -0500 Received: from mail.kernel.org ([198.145.29.99]:39284 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727514AbeLFB4P (ORCPT ); Wed, 5 Dec 2018 20:56:15 -0500 Received: from dragon (61-216-91-114.HINET-IP.hinet.net [61.216.91.114]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 1EC80213A2; Thu, 6 Dec 2018 01:56:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1544061375; bh=hHQot3haubOn0EISoJdz3Gss44BqWaF7LI+cDKkcJ+Y=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=KBxaouHknapEmjCsBohSj/RHGnyWF/TI8qYxxe6rlBuTqLgas/eQh0ZUxh3jl9wIP pKjMBUnpnoxKKhMt9VBgDVCOsWBbcgAHZuehevpeaRcIwT2XSOcrSucFqi91BtDgKp M6IevfUhZjl18B0GvOu+qN3yJCndtL21B1Ju0Eoo= Date: Thu, 6 Dec 2018 09:55:34 +0800 From: Shawn Guo To: Anson Huang Cc: "s.hauer@pengutronix.de" , "kernel@pengutronix.de" , Fabio Estevam , "linux@armlinux.org.uk" , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" , dl-linux-imx Subject: Re: [PATCH V2] ARM: imx: update the cpu power up timing setting on i.mx6sx Message-ID: <20181206015533.GW3987@dragon> References: <1543893119-3716-1-git-send-email-Anson.Huang@nxp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1543893119-3716-1-git-send-email-Anson.Huang@nxp.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Dec 04, 2018 at 03:17:45AM +0000, Anson Huang wrote: > The sw2iso count should cover ARM LDO ramp-up time, > the MAX ARM LDO ramp-up time may be up to more than > 100us on some boards, this patch sets sw2iso to 0xf > (~384us) which is the reset value, and it is much > more safe to cover different boards, since we have > observed that some customer boards failed with current > setting of 0x2. > > Fixes: 05136f0897b5 ("ARM: imx: support arm power off in cpuidle for i.mx6sx") > Signed-off-by: Anson Huang > Reviewed-by: Fabio Estevam Applied, thanks.