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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,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 321FCCA9EC7 for ; Wed, 30 Oct 2019 15:49:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E3B1821906 for ; Wed, 30 Oct 2019 15:49:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572450586; bh=A8OJ0gmDn66ao2MoOx6aQnaAj57Lc5OKhEELCpvSyIg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=o8qTFkfdD1HOMZCQE1orKPt7phizKnx2GSCGu1SGvGHfTLQ6ZpWmMN3GGJ+l1Z0Ky JBiJBUeluE2HZlmK7zWmCw3NsiMUpVSlIkJD5Gx1cWSuRTF/Rq6vx2peqQfWEAObMo S+c01W9mN131Q1pphRTjP/aFIKPPm4ZswmobT1gY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727435AbfJ3Pto (ORCPT ); Wed, 30 Oct 2019 11:49:44 -0400 Received: from mail.kernel.org ([198.145.29.99]:50168 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727397AbfJ3Ptm (ORCPT ); Wed, 30 Oct 2019 11:49:42 -0400 Received: from sasha-vm.mshome.net (100.50.158.77.rev.sfr.net [77.158.50.100]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 240E221924; Wed, 30 Oct 2019 15:49:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572450581; bh=A8OJ0gmDn66ao2MoOx6aQnaAj57Lc5OKhEELCpvSyIg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kVOsCBVqZM5jKmwcgK6phzaFWQUh60CiC5PrXPjjPtkSVSurdKQHiEI1TGDFUo8uW pwzPv3AZpIlMuxvsJhlV7zI7jMVfz6jK6Z0hCe3raZABVmCPr9DjrusOpWCh0sz9Ub KkiboXVeF5PbBJHSvv/Fja1POTIFnt2ILHDhB3SU= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Jernej Skrabec , Ondrej Jirman , Maxime Ripard , Sasha Levin , devicetree@vger.kernel.org Subject: [PATCH AUTOSEL 5.3 06/81] arm64: dts: allwinner: a64: pine64-plus: Add PHY regulator delay Date: Wed, 30 Oct 2019 11:48:12 -0400 Message-Id: <20191030154928.9432-6-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191030154928.9432-1-sashal@kernel.org> References: <20191030154928.9432-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jernej Skrabec [ Upstream commit 2511366797fa6ab4a404b4b000ef7cd262aaafe8 ] Depending on kernel and bootloader configuration, it's possible that Realtek ethernet PHY isn't powered on properly. According to the datasheet, it needs 30ms to power up and then some more time before it can be used. Fix that by adding 100ms ramp delay to regulator responsible for powering PHY. Fixes: 94dcfdc77fc5 ("arm64: allwinner: pine64-plus: Enable dwmac-sun8i") Suggested-by: Ondrej Jirman Signed-off-by: Jernej Skrabec Signed-off-by: Maxime Ripard Signed-off-by: Sasha Levin --- arch/arm64/boot/dts/allwinner/sun50i-a64-pine64-plus.dts | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64-plus.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64-plus.dts index 24f1aac366d64..d5b6e8159a335 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64-plus.dts +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64-plus.dts @@ -63,3 +63,12 @@ reg = <1>; }; }; + +®_dc1sw { + /* + * Ethernet PHY needs 30ms to properly power up and some more + * to initialize. 100ms should be plenty of time to finish + * whole process. + */ + regulator-enable-ramp-delay = <100000>; +}; -- 2.20.1