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: 11509895 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B8B8B912 for ; Sat, 25 Apr 2020 12:38:41 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 96CB4205C9 for ; Sat, 25 Apr 2020 12:38:41 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="beZS4G4o" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 96CB4205C9 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=nxp.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To: References:List-Owner; bh=A9TOw2VP/5is1DV828VJGLMocSv7j6wbyCHqpaVhOvU=; b=beZ S4G4ogO6VvCELmpsbAQ7Cnp7Ft8LI5qLUS4Ovo38Vr8Hggd7icFskp+/2p1RSr6e9PasCzl0PGKSO KRKoLr1ivU/W9m42NmQvevjHsBSWjMAxMG54UqZ4Fs9ijCu6EgV1USS4Yb2pU2CZ3MiKJUurDLTH9 c5NnvOPEaSJLzVXokxjvsto9YU9RPu8T9jpQNtZ2oE0r+RLfXj0dKmKsQPK3fukPuSP8fF2H5kuXW aoDjGBZb7ZuJJHenA/IMi8vkulITv3XFCAWIp794tE/8QmgiS4O+J46uubOHyB0ulhtjRbUfrv1cm ETm75SgjESVNhEgQNDNSlAe95wDndtA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jSK4p-0006Hz-H8; Sat, 25 Apr 2020 12:38:35 +0000 Received: from inva020.nxp.com ([92.121.34.13]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jSK4m-0006Gw-Hz for linux-arm-kernel@lists.infradead.org; Sat, 25 Apr 2020 12:38:34 +0000 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 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200425_053832_734985_B877EE88 X-CRM114-Status: UNSURE ( 8.15 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [92.121.34.13 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Linux-imx@nxp.com MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.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;