From patchwork Sat Apr 25 12:29:50 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anson Huang X-Patchwork-Id: 201510 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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, 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 CBC30C54FCB for ; Sat, 25 Apr 2020 12:38:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A7FDF205C9 for ; Sat, 25 Apr 2020 12:38:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726050AbgDYMib (ORCPT ); Sat, 25 Apr 2020 08:38:31 -0400 Received: from inva020.nxp.com ([92.121.34.13]:58456 "EHLO inva020.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725925AbgDYMib (ORCPT ); Sat, 25 Apr 2020 08:38:31 -0400 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 2B23D1A07FC; Sat, 25 Apr 2020 14:38:29 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 47A8B1A07F7; Sat, 25 Apr 2020 14:38:24 +0200 (CEST) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id EAD19402BB; Sat, 25 Apr 2020 20:38:17 +0800 (SGT) From: Anson Huang To: robh+dt@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, leonard.crestez@nxp.com, horia.geanta@nxp.com, peng.fan@nxp.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Linux-imx@nxp.com Subject: [PATCH] arm64: dts: imx8mn: Update VDD_ARM 1.2GHz setpoint voltage Date: Sat, 25 Apr 2020 20:29:50 +0800 Message-Id: <1587817790-21698-1-git-send-email-Anson.Huang@nxp.com> X-Mailer: git-send-email 2.7.4 X-Virus-Scanned: ClamAV using ClamSMTP Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org The latest datasheet Rev. 0.1, 03/2020 removes below constrain: "If VDD_SOC/GPU/DDR = 0.95V, then VDD_ARM must be >= 0.95V." So, for 1.2GHz setpoint VDD_ARM can use its typical voltage directly. The datasheet can be downloaded from below link: https://www.nxp.com/docs/en/data-sheet/IMX8MNCEC.pdf Signed-off-by: Anson Huang --- arch/arm64/boot/dts/freescale/imx8mn.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mn.dtsi b/arch/arm64/boot/dts/freescale/imx8mn.dtsi index fa78f01..de6e2cf 100644 --- a/arch/arm64/boot/dts/freescale/imx8mn.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mn.dtsi @@ -121,7 +121,7 @@ opp-1200000000 { opp-hz = /bits/ 64 <1200000000>; - opp-microvolt = <950000>; + opp-microvolt = <850000>; opp-supported-hw = <0xb00>, <0x7>; clock-latency-ns = <150000>; opp-suspend;