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 16731C76186 for ; Mon, 29 Jul 2019 19:30:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E05CA21655 for ; Mon, 29 Jul 2019 19:30:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1564428622; bh=faUFouGVsvnKvzfagFEBAOX962ina06t1NfPmZeNwOE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=idc1ykQwsHN10J9idDfaXWl2Le7vrJaD6UKcr6mirHvuTncC5cNJHZyY/2eYjZ2FL opopJzElcRS+KzhZAkzwSQo8Q5wrvDWzlQAKJkUwvlS+FfVsc2zl8eNK3UoypYO0+5 +Mk3lnhh9W51RO83FGzBWoK/W0ls7WV+yyYGVFn8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387622AbfG2TaU (ORCPT ); Mon, 29 Jul 2019 15:30:20 -0400 Received: from mail.kernel.org ([198.145.29.99]:43068 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728364AbfG2TaU (ORCPT ); Mon, 29 Jul 2019 15:30:20 -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 9AA8A21655; Mon, 29 Jul 2019 19:30:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1564428619; bh=faUFouGVsvnKvzfagFEBAOX962ina06t1NfPmZeNwOE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KS9QXyaukvyZJlspk2/N9zATBA8vnxlD11j6W/spY0X343kGRG3JbyhopK0rCOIos gVoqIgoedrWbi0aDEO3prs1Pn5IARep53SCdkTb809oGtpmoa6A+IapYO0G+GTOoqu iZPn90Oy+nQADyd4ISmd73HOXeu8XaWRlKYKWsMY= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jon Hunter , Thierry Reding Subject: [PATCH 4.14 132/293] arm64: tegra: Update Jetson TX1 GPU regulator timings Date: Mon, 29 Jul 2019 21:20:23 +0200 Message-Id: <20190729190834.673617776@linuxfoundation.org> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190729190820.321094988@linuxfoundation.org> References: <20190729190820.321094988@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 @@ -307,7 +307,8 @@ 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>; }; }; };