From patchwork Fri Dec 15 17:16:42 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dave Gerlach X-Patchwork-Id: 122145 Delivered-To: patch@linaro.org Received: by 10.140.22.227 with SMTP id 90csp744753qgn; Fri, 15 Dec 2017 09:18:24 -0800 (PST) X-Google-Smtp-Source: ACJfBot4yGpfnk+pPDw2pnXggjZdBqeoTXMy07f+g88phZZC0CF0/4MR0Ea741C/p+muAwkUV03Y X-Received: by 10.98.51.6 with SMTP id z6mr14194340pfz.34.1513358304623; Fri, 15 Dec 2017 09:18:24 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1513358304; cv=none; d=google.com; s=arc-20160816; b=a668YTXAgYUa+3mewD77hDYRWS1Pja5yjaHmCnPweRHqKO7gIH6nZTeXnIFcHs6PG7 sWR2N6HUXy3hS07ka7BPV5rEQAOYVfEd1LPxBOrR8zwPQXwuJZGhuE21jmyR0nnhSAZq vtwcH++8PcSn/R4PHNSSd+oqWApxC75NMD8s8qg27X4LzUv1zL1VpsS1l+n+jfShkcOw 1KyaZpGuzBqrLvqyWuC0P+JlvsTnmm4z78EO3DXpEi1ibq3tXuQmqoNhf6S3qe50OvjU RZZzVyYKCdiTcft1NtAIZxfBepQNKG6J+Z6seMKYpXwm/+7ctFFnjwZVE/a/iA6yEuRy Y73Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:dkim-signature :arc-authentication-results; bh=4uAQ3rYCx+aFHYpXr0em4t835Btao7e7Afh/e0nGG6k=; b=LjkDr/FeO9F//RoASMnmkEp3fD6IPC2+J5RDtD6CZrbrckF11Xa/yJG2S5HY/lwDeY faarevi0z61ZmM4OSlxQTsVJ8xyeY+hhHZPfpTIK0Wgv+eZ0FG8ZcU3IByoPCygVm00H 8G/X9EBDO4VTweheI018eOVtbGKfV1oMCIJw4BgQ55ePhQoP3kioXwE9u1JaUlXPwGaM 0sPaTrk1CyluLSnnRlDzKRZxerU6F8TeZT0uNPxnbbgfouE36+JgmEDuVq6kLJNlY70h Xl2mA1a48aruzpZmtLiiKUtKv8Z5f+KMLZuoZWpB4SKpHwHw047R/HEXbbCArB5yUfNM JqOQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=neutral (body hash did not verify) header.i=@ti.com header.s=ti-com-17Q1 header.b=rHs0n28r; spf=pass (google.com: best guess record for domain of devicetree-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=devicetree-owner@vger.kernel.org; dmarc=fail (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id s25si5411042pfg.318.2017.12.15.09.18.24; Fri, 15 Dec 2017 09:18:24 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of devicetree-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=neutral (body hash did not verify) header.i=@ti.com header.s=ti-com-17Q1 header.b=rHs0n28r; spf=pass (google.com: best guess record for domain of devicetree-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=devicetree-owner@vger.kernel.org; dmarc=fail (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755415AbdLORSX (ORCPT + 6 others); Fri, 15 Dec 2017 12:18:23 -0500 Received: from fllnx209.ext.ti.com ([198.47.19.16]:21774 "EHLO fllnx209.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755361AbdLORSW (ORCPT ); Fri, 15 Dec 2017 12:18:22 -0500 Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by fllnx209.ext.ti.com (8.15.1/8.15.1) with ESMTP id vBFHGvS4022358; Fri, 15 Dec 2017 11:16:57 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ti.com; s=ti-com-17Q1; t=1513358217; bh=GOsd042AvkzTyqoLTFvtqyA0SdCqbAWUwE0taaZ7nE8=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=rHs0n28raZPz0aXhW4kIUsUoGdMg7qwS8GFbjhnSpFVX2jnk84X1dpB91Gn6KOPUl 2tDzs0Xc/Bvricv6rIgiMy0pnqVdMa+RMZmdgSEj1h21OIOILm5+i1tkeApqYMyWCl gEHF+7p6dVSSKPQWmNnHeSPaemKaKP2xlruEFKo8= Received: from DFLE100.ent.ti.com (dfle100.ent.ti.com [10.64.6.21]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id vBFHGq4m023696; Fri, 15 Dec 2017 11:16:52 -0600 Received: from DFLE104.ent.ti.com (10.64.6.25) by DFLE100.ent.ti.com (10.64.6.21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1261.35; Fri, 15 Dec 2017 11:16:52 -0600 Received: from dlep33.itg.ti.com (157.170.170.75) by DFLE104.ent.ti.com (10.64.6.25) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.1.1261.35 via Frontend Transport; Fri, 15 Dec 2017 11:16:52 -0600 Received: from legion.dal.design.ti.com (legion.dal.design.ti.com [128.247.22.53]) by dlep33.itg.ti.com (8.14.3/8.13.8) with ESMTP id vBFHGqfm023061; Fri, 15 Dec 2017 11:16:52 -0600 Received: from localhost (uda0274052.dhcp.ti.com [128.247.59.203]) by legion.dal.design.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id vBFHGqx08183; Fri, 15 Dec 2017 11:16:52 -0600 (CST) From: Dave Gerlach To: Tony Lindgren CC: , , , Dave Gerlach Subject: [PATCH 1/2] ARM: dts: am437x-idk-evm: Disable OPP50 for MPU Date: Fri, 15 Dec 2017 11:16:42 -0600 Message-ID: <20171215171643.8345-2-d-gerlach@ti.com> X-Mailer: git-send-email 2.15.1 In-Reply-To: <20171215171643.8345-1-d-gerlach@ti.com> References: <20171215171643.8345-1-d-gerlach@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org AM437x IDK has a TPS386000 supply voltage supervisor on the VDD_MPU rail set to trigger undervoltage condition at 0.96V. Because of this, OPP50, which is normally configured to 300MHz at 0.95V, must be disabled to avoid triggering the undervoltage condition. Also mark OPP100 as the suspend-opp as it is now our lowest OPP. Signed-off-by: Dave Gerlach --- arch/arm/boot/dts/am437x-idk-evm.dts | 14 ++++++++++++++ 1 file changed, 14 insertions(+) -- 2.15.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/arch/arm/boot/dts/am437x-idk-evm.dts b/arch/arm/boot/dts/am437x-idk-evm.dts index 5e364473067f..20132477a871 100644 --- a/arch/arm/boot/dts/am437x-idk-evm.dts +++ b/arch/arm/boot/dts/am437x-idk-evm.dts @@ -519,3 +519,17 @@ &cpu { cpu0-supply = <&tps>; }; + +&cpu0_opp_table { + /* + * Supply voltage supervisor on board will not allow opp50 so + * disable it and set opp100 as suspend OPP. + */ + opp50@300000000 { + status = "disabled"; + }; + + opp100@600000000 { + opp-suspend; + }; +};