From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS, USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AC0B2C04EBF for ; Thu, 6 Dec 2018 01:56:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6F1972146D for ; Thu, 6 Dec 2018 01:56:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1544061377; bh=hHQot3haubOn0EISoJdz3Gss44BqWaF7LI+cDKkcJ+Y=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=0XZzbGwJ3ym7ss0Y8BwYYfdoPmyFvH9nPCU2KnFOzqGVb87308E9awkU3Y0oTtaHv vbao0HU3kUkFIfCjyQ4kbZOoC6vdw6a3dr8j1FYdxVnvnz5i0WIXdyigFBigIEUXbP 6GXmi1XJ+E+M7BunqthfV4Ft8VX05D3DuYUs4VNI= DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6F1972146D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728810AbeLFB4Q (ORCPT ); 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.