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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,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 DCF57C76186 for ; Wed, 24 Jul 2019 19:36:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B471C214AF for ; Wed, 24 Jul 2019 19:36:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1563997019; bh=7Y9poKPEgUGuoZRHPAlC4esT87CFOv4Dtq1zAnbwfYQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=uWcu5AZUUvIQsdgtHaqqqMGXWCbnjPn03p1xxfmiDVY2+lgL+hAdnT8csyR91BzN8 qWd9yxS+431NpG3ef6XfS5+8Nmz1YEpKK6saZeylggvjJzxXEhqO6tiBEWWrtPKbXT 7x+B/erHMoxeydyl18aYiBbGiRY18s7k38w9xPBo= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389357AbfGXTg6 (ORCPT ); Wed, 24 Jul 2019 15:36:58 -0400 Received: from mail.kernel.org ([198.145.29.99]:36842 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389365AbfGXTg6 (ORCPT ); Wed, 24 Jul 2019 15:36:58 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 3465720665; Wed, 24 Jul 2019 19:36:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1563997017; bh=7Y9poKPEgUGuoZRHPAlC4esT87CFOv4Dtq1zAnbwfYQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KFcMLwJDl4IMjXxG8NwzIIxuf8KniAoHK7guU7duwfXkZvEv4PCdH/ImmYtJeJ8Gs K954RKz08WTkZjy8l7EDiCEdvPB0z3jagmAAXl8O25Ul3Jc6HaU0k0apYB/MvnA3jV AMV75UyRtQVJquGdjXoz8nGIDlvBMXNJsha27bZ4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jon Hunter , Thierry Reding Subject: [PATCH 5.2 292/413] arm64: tegra: Update Jetson TX1 GPU regulator timings Date: Wed, 24 Jul 2019 21:19:43 +0200 Message-Id: <20190724191757.075181627@linuxfoundation.org> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190724191735.096702571@linuxfoundation.org> References: <20190724191735.096702571@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Jon Hunter commit ece6031ece2dd64d63708cfe1088016cee5b10c0 upstream. The GPU regulator enable ramp delay for Jetson TX1 is set to 1ms which not sufficient because the enable ramp delay has been measured to be greater than 1ms. Furthermore, the downstream kernels released by NVIDIA for Jetson TX1 are using a enable ramp delay 2ms and a settling delay of 160us. Update the GPU regulator enable ramp delay for Jetson TX1 to be 2ms and add a settling delay of 160us. Cc: stable@vger.kernel.org Signed-off-by: Jon Hunter Fixes: 5e6b9a89afce ("arm64: tegra: Add VDD_GPU regulator to Jetson TX1") Signed-off-by: Thierry Reding Signed-off-by: Greg Kroah-Hartman --- arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi @@ -328,7 +328,8 @@ regulator-max-microvolt = <1320000>; enable-gpios = <&pmic 6 GPIO_ACTIVE_HIGH>; regulator-ramp-delay = <80>; - regulator-enable-ramp-delay = <1000>; + regulator-enable-ramp-delay = <2000>; + regulator-settling-time-us = <160>; }; }; };