From patchwork Wed Oct 9 07:04:19 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anson Huang X-Patchwork-Id: 11180565 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1EB8F14ED for ; Wed, 9 Oct 2019 07:06:52 +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 E810420B7C for ; Wed, 9 Oct 2019 07:06:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="nT99CY4F" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E810420B7C 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+patchwork-linux-arm=patchwork.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=mMyrHlUCX+ZZGfyMAw0V4DZlM9CaSowiVhomuSJwBRg=; b=nT9 9CY4FLDp9BYlOMS0na7PWRKUdKgyGX7pl6QoX07JmLLzGKin9ozBnZjxiykBoaR3inUlTXXxp32Ur QSmuh00qW6FqspzOAa5tWyOzmH1fTXuk62GZT6EmuByvQxcntBmqOV6yt6bLvUJYtc+WC29rd+XKq LVy9pFNiJRJvTmyYleAoJSiwVlBMchMIovAqrGMk4Mybk3/24LhTg3SplwiIbqm8u0K1PkUogxzNT FlLOcGaqh0FeTe28QizrE3fIjShiTU9S8C+lnI7iSjCQA+utOxWRcNY1a1+DbVEseXaRehiD90ZOJ KOfhGSg5u40aCRfPcrEgTkFnVthQ/dw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.2 #3 (Red Hat Linux)) id 1iI63e-0008QT-RQ; Wed, 09 Oct 2019 07:06:50 +0000 Received: from inva021.nxp.com ([92.121.34.21]) by bombadil.infradead.org with esmtps (Exim 4.92.2 #3 (Red Hat Linux)) id 1iI63b-0008Q3-Vz for linux-arm-kernel@lists.infradead.org; Wed, 09 Oct 2019 07:06:49 +0000 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 040F92000D3; Wed, 9 Oct 2019 09:06:46 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 0E870200391; Wed, 9 Oct 2019 09:06:39 +0200 (CEST) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id 5E978402DA; Wed, 9 Oct 2019 15:06:30 +0800 (SGT) From: Anson Huang To: robh+dt@kernel.org, mark.rutland@arm.com, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, l.stach@pengutronix.de, ccaione@baylibre.com, daniel.baluta@nxp.com, andrew.smirnov@gmail.com, abel.vesa@nxp.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH] arm64: dts: imx8mq-evk: VDD_ARM power rail is always ON Date: Wed, 9 Oct 2019 15:04:19 +0800 Message-Id: <1570604659-28314-1-git-send-email-Anson.Huang@nxp.com> X-Mailer: git-send-email 2.7.4 X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191009_000648_168506_92F95CD5 X-CRM114-Status: UNSURE ( 6.91 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [92.121.34.21 listed in list.dnswl.org] X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Linux-imx@nxp.com MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org On i.MX8MQ EVK board, VDD_ARM is from a DC-DC converter which is always ON, the GPIO1_IO13 is ONLY to switch VDD_ARM's voltage between 0.9V and 1V for CPU DVFS, so VDD_ARM's GPIO regulator should be always ON to avoid below confusion after kernel boot up: imx8mqevk login: [ 31.776619] vdd_arm: disabling Signed-off-by: Anson Huang --- arch/arm64/boot/dts/freescale/imx8mq-evk.dts | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts index 6ede46f..4e0a281 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts @@ -48,6 +48,8 @@ gpios = <&gpio1 13 GPIO_ACTIVE_HIGH>; states = <1000000 0x0 900000 0x1>; + regulator-boot-on; + regulator-always-on; }; wm8524: audio-codec {