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=-9.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,T_DKIMWL_WL_HIGH,URIBL_BLOCKED,USER_AGENT_GIT 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 01A30C04AB3 for ; Wed, 29 May 2019 06:49:28 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CC02521670 for ; Wed, 29 May 2019 06:49:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Dl+YTs9Z" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CC02521670 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=nxp.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To: References:List-Owner; bh=n1UqbbSqix0HPD1Z6MpJpJutlVvoiXIkG6HSbb1poQM=; b=Dl+ YTs9Zz2O8H/4Ey+zWyi4i41xxgxIjHS0AIM+J4uyD9VhbxzZQrUCLPKX6+fNe8Azo+6JMeMKSRytH rd2w5GFCWe82jXWwxfbQSBpCRS0g0PzD6MMVDsk5Z9AWJOom9uCsJ3Cv+tQNQg1eaTbuhVkeDkcJs HRYTPJM174h0zf6meBckZPfQUtiO/1xFARc4vpoH6ROfT1z7ORZEapkCmXp7ENWplNHUFo0zrfAiA hM4YFtcsn5n1R/TBRva65p4dr9TfazHCgU83KdgS8YAt30jOmatGY9MxniO9fWgghSYwWKnxAR6QD zNdVweQCb43sjD9L05sKUKxiQgTrd1w==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hVsOl-0000gu-N0; Wed, 29 May 2019 06:49:19 +0000 Received: from inva020.nxp.com ([92.121.34.13]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hVsOh-0000fg-Vy for linux-arm-kernel@lists.infradead.org; Wed, 29 May 2019 06:49:17 +0000 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 071191A023D; Wed, 29 May 2019 08:49:11 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 7A4931A0002; Wed, 29 May 2019 08:49:06 +0200 (CEST) Received: from localhost.localdomain (mega.ap.freescale.net [10.192.208.232]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id 916C1402CB; Wed, 29 May 2019 14:49:00 +0800 (SGT) From: Anson.Huang@nxp.com To: robh+dt@kernel.org, mark.rutland@arm.com, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH] ARM: dts: imx7d-sdb: Make SW2's voltage fixed Date: Wed, 29 May 2019 14:50:56 +0800 Message-Id: <20190529065056.27516-1-Anson.Huang@nxp.com> X-Mailer: git-send-email 2.17.1 X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190528_234916_168783_5CBBC4BF X-CRM114-Status: UNSURE ( 8.54 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Linux-imx@nxp.com MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Anson Huang On i.MX7D SDB board, SW2 supplies a lot of peripheral devices, its voltage should be fixed at 1.8V. The commit 43967d9b5a7c ("ARM: dts: imx7d-sdb: Assign corresponding power supply for LDOs") assigns SW2 as the supplier of vdd1p0d, and when its comsumers pcie-phy/mipi-phy try to set the vdd1p0d to 1.0V, regulator core will also set SW2 to its best(min) voltage to 1.5V, and it will lead to board reset. This patch makes SW2's voltage fixed at 1.8V to avoid this issue. Fixes: 43967d9b5a7c ("ARM: dts: imx7d-sdb: Assign corresponding power supply for LDOs") Reported-by: Leonard Crestez Signed-off-by: Anson Huang --- arch/arm/boot/dts/imx7d-sdb.dts | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/imx7d-sdb.dts b/arch/arm/boot/dts/imx7d-sdb.dts index efc83bc..a5365b8 100644 --- a/arch/arm/boot/dts/imx7d-sdb.dts +++ b/arch/arm/boot/dts/imx7d-sdb.dts @@ -263,8 +263,8 @@ }; sw2_reg: sw2 { - regulator-min-microvolt = <1500000>; - regulator-max-microvolt = <1850000>; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; regulator-boot-on; regulator-always-on; }; -- 2.7.4 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel