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=unavailable 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 ABD1AC76186 for ; Wed, 24 Jul 2019 20:13:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 76FF82083B for ; Wed, 24 Jul 2019 20:13:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1563999229; bh=PzZjDBqROPAlAzof2XSQLBLA+qt6LlWh0YVuc2T7/2k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=LPQMtUiPiQcRpKzJE/iFaTgAGsQCJzxyyzLjQTPTNNtVCC0eZ7rKbLt5FuZ6uSrfo sn82kCR1b0gTgRYTcC5wAKBOdlpP7eRIqRpxppVo63fKdwODku9z3xXrYETh3rAOR8 cQN8ZrHy4XP7e3s7rRTuTqtgUxoaY/jo3QOoXXgg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2392246AbfGXUNs (ORCPT ); Wed, 24 Jul 2019 16:13:48 -0400 Received: from mail.kernel.org ([198.145.29.99]:40076 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2404581AbfGXT4A (ORCPT ); Wed, 24 Jul 2019 15:56:00 -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 37037205C9; Wed, 24 Jul 2019 19:55:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1563998159; bh=PzZjDBqROPAlAzof2XSQLBLA+qt6LlWh0YVuc2T7/2k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=0y8eAxpt2eRU4uxgxZxRXXbiA9qfFEKT35rOYnorCzli42xlUFz75XfRGO1Hv8SAZ hpv2dZXN73CDdV1NNpblFNJ9WhOs9lld545vWAD7qyd2f9kutZKl6doYxwNjOuulYb p5DEexHk2TUr4xps7KuVEyYQQM5eJUpFAzcCjD0k= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jon Hunter , Thierry Reding Subject: [PATCH 5.1 268/371] arm64: tegra: Update Jetson TX1 GPU regulator timings Date: Wed, 24 Jul 2019 21:20:20 +0200 Message-Id: <20190724191744.504149475@linuxfoundation.org> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190724191724.382593077@linuxfoundation.org> References: <20190724191724.382593077@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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 @@ -322,7 +322,8 @@ 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>; }; }; };