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=-17.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,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 449FFC4338F for ; Tue, 27 Jul 2021 16:13:07 +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 1661F61B5F for ; Tue, 27 Jul 2021 16:13:07 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 1661F61B5F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=gateworks.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=FZzxXYKyjOhCqxeKXeKVlhsgR9LLnY1aa1R/lG3dr3o=; b=bxUgfIXRJmQu1f C0ahjtAAVH18b/xgURExoA5hhF/ebExrl/oyDu2KzfVSbvIeuq45wdj0x9AjDIzNdd0M4gGXpBLHm J8AIO4pdXTMFYBa3umGSHBYGJf0eGiRwCA7BqEOXyZ64Rp3ax1qinvMGPPvp44duBiGyB/k/2V64v ryy8EYKERsIARxDtYcNCd2plUUAQpIvlabPrVVdBuqIsNevkGELMDmZt4K1Mw06yL5GNSFx5YjqTE rC/ULhQVGaov56phdwIQnk1bF0yXDB3SGWikPAv+ylyFPQy6OSuenPyn4EvJu/W++ev4gqvX1oj91 WyMGqiEud+t9Bk4itoLQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1m8Pfr-00FJBn-5J; Tue, 27 Jul 2021 16:11:19 +0000 Received: from finn.gateworks.com ([108.161.129.64] helo=finn.localdomain) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1m8Pfn-00FJAB-Jn for linux-arm-kernel@lists.infradead.org; Tue, 27 Jul 2021 16:11:17 +0000 Received: from 068-189-091-139.biz.spectrum.com ([68.189.91.139] helo=tharvey.pdc.gateworks.com) by finn.localdomain with esmtp (Exim 4.93) (envelope-from ) id 1m8Pfe-005DjI-I3; Tue, 27 Jul 2021 16:11:06 +0000 From: Tim Harvey To: Rob Herring , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Tim Harvey Subject: [PATCH 4/5] arm64: dts: imx8mm-venice-gw7901: add support for USB hub subload Date: Tue, 27 Jul 2021 09:11:00 -0700 Message-Id: <20210727161101.32267-4-tharvey@gateworks.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210727161101.32267-1-tharvey@gateworks.com> References: <20210727161101.32267-1-tharvey@gateworks.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210727_091115_697352_9F8C1147 X-CRM114-Status: UNSURE ( 9.91 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The USB hub has it's reset as GPIO4_IO17 but can be sub-loaded and VBUS provided by a VBUS regulator with GPIO4_IO2 as the enable and GPIO1_IO15 as the active-low over-current. Enable pull-up for GPIO4_IO17 to keep hub out of reset and move VBUS enable to GPIO4_IO2. Additionally enable pull-up on GPIO1_IO15 so that if the hub is loaded it never over-currents. This allows USB to work in both configurations without a device-tree change. Signed-off-by: Tim Harvey --- arch/arm64/boot/dts/freescale/imx8mm-venice-gw7901.dts | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7901.dts b/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7901.dts index 5a1e9df39bec..db43ee28bdb6 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7901.dts +++ b/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7901.dts @@ -216,7 +216,7 @@ pinctrl-0 = <&pinctrl_reg_usb2>; compatible = "regulator-fixed"; regulator-name = "usb_usb2_vbus"; - gpio = <&gpio4 17 GPIO_ACTIVE_HIGH>; + gpio = <&gpio4 2 GPIO_ACTIVE_HIGH>; enable-active-high; regulator-min-microvolt = <5000000>; regulator-max-microvolt = <5000000>; @@ -824,8 +824,9 @@ pinctrl_reg_usb2: regusb1grp { fsl,pins = < - MX8MM_IOMUXC_SAI1_TXD5_GPIO4_IO17 0x41 - MX8MM_IOMUXC_GPIO1_IO15_USB2_OTG_OC 0x41 + MX8MM_IOMUXC_SAI1_RXD0_GPIO4_IO2 0x41 + MX8MM_IOMUXC_SAI1_TXD5_GPIO4_IO17 0x140 + MX8MM_IOMUXC_GPIO1_IO15_USB2_OTG_OC 0x140 >; }; -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel