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=-8.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,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 DF955C4360F for ; Tue, 2 Apr 2019 19:32:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A298F2070D for ; Tue, 2 Apr 2019 19:32:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="rWimYmqH" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731040AbfDBTcU (ORCPT ); Tue, 2 Apr 2019 15:32:20 -0400 Received: from mail-it1-f196.google.com ([209.85.166.196]:50474 "EHLO mail-it1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726168AbfDBTcT (ORCPT ); Tue, 2 Apr 2019 15:32:19 -0400 Received: by mail-it1-f196.google.com with SMTP id q14so7211695itk.0; Tue, 02 Apr 2019 12:32:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=xHwX7N1RZtbO0BzmhJG1pDFtWgUBQ/UisLEym+aQ4Nc=; b=rWimYmqHtDgbCxlsnXvUGJpIxkI63OM170yLErYsFvxcd0vSq+zQtc/Par6O9kvNBJ zFyHykGVP5PntmHKHrLZy9brHjVRBth/XvNlJnGi3nehxf+Vn7TvtVt2bskBOFyuUO09 qU5rtiBWvt5sj088KSdfoICC8PJQY40rUoqLrv1ac2IHHyjkYaQCJ+qYxtDtelCdsGhm eXbQ8KxmhAccexzQXNs9Fa39Ex6omZrSdeSvtagVxHTMW8gqQeNoLwmc1cb3S65Zaxfc RDmLBPNCpFTB4JAsjHexnYKs0XeEhp8jmfe2mRZrrDHKavzMfEMDGdB1h2w4e5ZEm8XN zLqg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=xHwX7N1RZtbO0BzmhJG1pDFtWgUBQ/UisLEym+aQ4Nc=; b=ach9M5Z+0oeMbUzajDKNAt9iDC6I09WSF3HtV0CQkSXZAS6mn3u2At1vwjTCpdKYsb jj2OgWkDLcKVXU+Ax7IB2uZLewPx8mPTijeLu9Qlhhv36BNp0hJklxeCxIfsnznsZjeI bEtUftHii/W//Zs4SfWcLbhC2ZRbUQtTFV90IZad5bZjLLlS0r/95ac+906rwUoHrqC0 QqlDbLGQgY3P2XMaLM3MZGXV88MjqUN4MZ/1q/pspm9khLtynB/BXqKCW3mGQOrXrwSi H8iG/9WfOiewJenYQzTLoP0Gji/GQD+o13MDfb5yWiujefnGoneqF3q2l1oJgdWAeODZ uV6g== X-Gm-Message-State: APjAAAXWL5BmFTDwCIKPTpvNAE6UT+wyjINxRMZwkU2/M5a3A9agLp29 yut8D8ji1LD19QA3YGJwqdE= X-Google-Smtp-Source: APXvYqyShfHs+0zc4tkF4ve19J8mwhfRPFCnfbhA5gj3uHrWM4YLWiMnVmH5dx7yFoW8Y5RRAaj38g== X-Received: by 2002:a24:d45:: with SMTP id 66mr2231163itx.9.1554233538962; Tue, 02 Apr 2019 12:32:18 -0700 (PDT) Received: from localhost.localdomain (c-73-37-219-234.hsd1.mn.comcast.net. [73.37.219.234]) by smtp.gmail.com with ESMTPSA id f204sm7654219itc.26.2019.04.02.12.32.17 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 02 Apr 2019 12:32:17 -0700 (PDT) From: Adam Ford To: linux-arm-kernel@lists.infradead.org Cc: adam.ford@logicpd.com, Adam Ford , Rob Herring , Mark Rutland , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] ARM: dts: imx6q-logicpd: Reduce inrush current on USBH1 Date: Tue, 2 Apr 2019 14:32:04 -0500 Message-Id: <20190402193204.4745-1-aford173@gmail.com> X-Mailer: git-send-email 2.17.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Some USB peripherals draw more power, and the sourcing regulator take a little time to turn on. This patch fixes an issue where some devices occasionally do not get detected, because the power isn't quite ready when communication starts, so we add a bit of a delay. Fixes: 1c207f911fe9 ("ARM: dts: imx: Add support for Logic PD i.MX6QD EVM") Signed-off-by: Adam Ford diff --git a/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi b/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi index db6b5b900826..7731db493cb0 100644 --- a/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi +++ b/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi @@ -88,6 +88,7 @@ regulator-min-microvolt = <5000000>; regulator-max-microvolt = <5000000>; gpio = <&gpio7 12 GPIO_ACTIVE_HIGH>; + startup-delay-us = <70000>; enable-active-high; }; -- 2.17.1