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=-2.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_PASS,T_DKIMWL_WL_HIGH,URIBL_BLOCKED, 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 81264C6778C for ; Sun, 1 Jul 2018 13:33:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 27A3925041 for ; Sun, 1 Jul 2018 13:33:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="RxyWKspx" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 27A3925041 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 S1752343AbeGANc6 (ORCPT ); Sun, 1 Jul 2018 09:32:58 -0400 Received: from mail.kernel.org ([198.145.29.99]:59304 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752109AbeGANc4 (ORCPT ); Sun, 1 Jul 2018 09:32:56 -0400 Received: from dragon (unknown [45.56.152.146]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 96CDA2500A; Sun, 1 Jul 2018 13:32:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1530451975; bh=+Wo12E95UAeicV9YTpoYCOhBEwrIrrIzU/RYikB7vGU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=RxyWKspxbhQl1CNQzORvFGja6H9YcQyIbnkLch1279Pl232RFU1O2O8KCwin6R6ia Y8gZwH/qtwHA8pi4bvxoTU6rnJWkhJHIpZNb8AFOWS4+YeFNkd19CTcYV40H5nGdFa OIH+HY2jTYCmuUrc+DnhGN1obE5HB6/fbSHv4gUg= Date: Sun, 1 Jul 2018 21:32:44 +0800 From: Shawn Guo To: Anson Huang Cc: s.hauer@pengutronix.de, kernel@pengutronix.de, fabio.estevam@nxp.com, robh+dt@kernel.org, mark.rutland@arm.com, devicetree@vger.kernel.org, Linux-imx@nxp.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH V3] ARM: dts: imx6sll-evk: make pfuze100 sw4 always on Message-ID: <20180701133243.GU4348@dragon> References: <1530062725-25779-1-git-send-email-Anson.Huang@nxp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1530062725-25779-1-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 Wed, Jun 27, 2018 at 09:25:25AM +0800, Anson Huang wrote: > On i.MX6SLL EVK board, PFuze100's SW4 is supplying > LPDDR3, it needs to be always on. This patch fixes > Linux kernel boot up hang caused by commit 5fe156f1cab4 > ("regulator: pfuze100: add enable/disable for switch"), > because SW4 is turned off unexpectedly: > > [ 1.693613] cfg80211: failed to load regulatory.db > [ 1.700063] SW4: disabling > [ 1.703973] SWBST: disabling > > Fixes: 5fe156f1cab4 ("regulator: pfuze100: add enable/disable for switch") > Signed-off-by: Anson Huang > Reviewed-by: Fabio Estevam Just want to understand if we agree to break the existing DTB with v4.18 kernel? Shawn > --- > changes since V2: > improve the way of referencing commit, and add fix tag. > arch/arm/boot/dts/imx6sll-evk.dts | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/arm/boot/dts/imx6sll-evk.dts b/arch/arm/boot/dts/imx6sll-evk.dts > index 4684ac4..2217c40 100644 > --- a/arch/arm/boot/dts/imx6sll-evk.dts > +++ b/arch/arm/boot/dts/imx6sll-evk.dts > @@ -142,6 +142,7 @@ > sw4_reg: sw4 { > regulator-min-microvolt = <800000>; > regulator-max-microvolt = <3300000>; > + regulator-always-on; > }; > > swbst_reg: swbst { > -- > 2.7.4 > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel From mboxrd@z Thu Jan 1 00:00:00 1970 From: shawnguo@kernel.org (Shawn Guo) Date: Sun, 1 Jul 2018 21:32:44 +0800 Subject: [PATCH V3] ARM: dts: imx6sll-evk: make pfuze100 sw4 always on In-Reply-To: <1530062725-25779-1-git-send-email-Anson.Huang@nxp.com> References: <1530062725-25779-1-git-send-email-Anson.Huang@nxp.com> Message-ID: <20180701133243.GU4348@dragon> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Wed, Jun 27, 2018 at 09:25:25AM +0800, Anson Huang wrote: > On i.MX6SLL EVK board, PFuze100's SW4 is supplying > LPDDR3, it needs to be always on. This patch fixes > Linux kernel boot up hang caused by commit 5fe156f1cab4 > ("regulator: pfuze100: add enable/disable for switch"), > because SW4 is turned off unexpectedly: > > [ 1.693613] cfg80211: failed to load regulatory.db > [ 1.700063] SW4: disabling > [ 1.703973] SWBST: disabling > > Fixes: 5fe156f1cab4 ("regulator: pfuze100: add enable/disable for switch") > Signed-off-by: Anson Huang > Reviewed-by: Fabio Estevam Just want to understand if we agree to break the existing DTB with v4.18 kernel? Shawn > --- > changes since V2: > improve the way of referencing commit, and add fix tag. > arch/arm/boot/dts/imx6sll-evk.dts | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/arm/boot/dts/imx6sll-evk.dts b/arch/arm/boot/dts/imx6sll-evk.dts > index 4684ac4..2217c40 100644 > --- a/arch/arm/boot/dts/imx6sll-evk.dts > +++ b/arch/arm/boot/dts/imx6sll-evk.dts > @@ -142,6 +142,7 @@ > sw4_reg: sw4 { > regulator-min-microvolt = <800000>; > regulator-max-microvolt = <3300000>; > + regulator-always-on; > }; > > swbst_reg: swbst { > -- > 2.7.4 > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel at lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel