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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, 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 0498CC47404 for ; Wed, 9 Oct 2019 07:06:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D8DA820B7C for ; Wed, 9 Oct 2019 07:06:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726765AbfJIHGs (ORCPT ); Wed, 9 Oct 2019 03:06:48 -0400 Received: from inva021.nxp.com ([92.121.34.21]:56064 "EHLO inva021.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725962AbfJIHGs (ORCPT ); Wed, 9 Oct 2019 03:06:48 -0400 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 Cc: Linux-imx@nxp.com 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 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.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 { -- 2.7.4