From patchwork Tue Mar 25 10:49:22 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Alex Shi X-Patchwork-Id: 3887101 Return-Path: X-Original-To: patchwork-linux-omap@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 710519F334 for ; Tue, 25 Mar 2014 10:52:44 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id D176D2021B for ; Tue, 25 Mar 2014 10:52:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CDFAA2020E for ; Tue, 25 Mar 2014 10:52:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753756AbaCYKuu (ORCPT ); Tue, 25 Mar 2014 06:50:50 -0400 Received: from mail-pb0-f47.google.com ([209.85.160.47]:54234 "EHLO mail-pb0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753754AbaCYKur (ORCPT ); Tue, 25 Mar 2014 06:50:47 -0400 Received: by mail-pb0-f47.google.com with SMTP id up15so280061pbc.20 for ; Tue, 25 Mar 2014 03:50:46 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-type:content-transfer-encoding; bh=k3MDdGWZq4xUMANlybzpM08NR1VDmlGt0JVnVYDurHY=; b=Hrfq6gM7E+V8KeKPAoPg3iK5qtKoe2EsbGhdPhY1cHmPtnhKlnJ6zcnneTTYzUCPiu lucC0bORmQcpJdsHGEqDSMy+Odb1rnB7JfCzOMLmw5JbCTPzGYQR8WcjAOKdGhWjWchc PSrkbXWdvwgL2o+BDLiIri67xu/Ap532h/qeILcilwm5WjqaExJ++vaAnvUKnm3nzLc0 mUcCPFzv0ud/vsLUnC3yC58v4ZtXhIy4DMkjYak9z19e8H7hsbH01YqyPrf5DC7m589n Z85vI1dckQRmWAGGlkfqucEpa9qWNBpDA3HkhwhZjIyihQoJ3369xvIiet5OQn3oyEF5 hlpQ== X-Gm-Message-State: ALoCoQkrnuqhaLQPaIdGs0zKNUwGLkrHNTCxDj3wa7tP89JGQU3/ff4ijx7Dg5YL/4VFL7sMQFzf X-Received: by 10.66.142.233 with SMTP id rz9mr78212129pab.71.1395744646740; Tue, 25 Mar 2014 03:50:46 -0700 (PDT) Received: from localhost.localdomain ([162.243.130.63]) by mx.google.com with ESMTPSA id db3sm42987987pbb.10.2014.03.25.03.50.38 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 25 Mar 2014 03:50:46 -0700 (PDT) From: Alex Shi To: mark.hambleton@broadcom.com, mark.brown@linaro.org, eduardo.valentin@ti.com, mporter@linaro.org, lsk-interest@linaro.org, linaro-kernel@linaro.org Cc: =?UTF-8?q?Beno=C3=AEt=20Cousson?= , Tony Lindgren , Rob Herring , Pawel Moll , Mark Rutland , Stephen Warren , Ian Campbell , Russell King , linux-omap@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Alex Shi Subject: [PATCH 09/19] arm: dts: add omap4 CPU thermal data Date: Tue, 25 Mar 2014 18:49:22 +0800 Message-Id: <1395744572-20014-10-git-send-email-alex.shi@linaro.org> X-Mailer: git-send-email 1.8.1.2 In-Reply-To: <1395744572-20014-1-git-send-email-alex.shi@linaro.org> References: <1395744572-20014-1-git-send-email-alex.shi@linaro.org> MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Spam-Status: No, score=-7.3 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Eduardo Valentin This patch changes a dtsi file to contain the thermal data for MPU domain on OMAP4 and later SoCs. This data will enable the passive cooling with CPUfreq cooling device at 100C and the system will do a thermal shutdown at 125C. This thermal data can be reused across TI SoC devices. Cc: "Benoît Cousson" Cc: Tony Lindgren Cc: Rob Herring Cc: Pawel Moll Cc: Mark Rutland Cc: Stephen Warren Cc: Ian Campbell Cc: Russell King Cc: linux-omap@vger.kernel.org Cc: devicetree@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Eduardo Valentin (cherry picked from commit 0bbf6c54d100836db40ba020b7c9793ea3e6be0b) Signed-off-by: Alex Shi --- arch/arm/boot/dts/omap4-cpu-thermal.dtsi | 41 ++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 arch/arm/boot/dts/omap4-cpu-thermal.dtsi diff --git a/arch/arm/boot/dts/omap4-cpu-thermal.dtsi b/arch/arm/boot/dts/omap4-cpu-thermal.dtsi new file mode 100644 index 0000000..cb9458f --- /dev/null +++ b/arch/arm/boot/dts/omap4-cpu-thermal.dtsi @@ -0,0 +1,41 @@ +/* + * Device Tree Source for OMAP4/5 SoC CPU thermal + * + * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/ + * Contact: Eduardo Valentin + * + * This file is licensed under the terms of the GNU General Public License + * version 2. This program is licensed "as is" without any warranty of any + * kind, whether express or implied. + */ + +#include + +cpu_thermal: cpu_thermal { + polling-delay-passive = <250>; /* milliseconds */ + polling-delay = <1000>; /* milliseconds */ + + /* sensor ID */ + thermal-sensors = <&bandgap 0>; + + trips { + cpu_alert0: cpu_alert { + temperature = <100000>; /* millicelsius */ + hysteresis = <2000>; /* millicelsius */ + type = "passive"; + }; + cpu_crit: cpu_crit { + temperature = <125000>; /* millicelsius */ + hysteresis = <2000>; /* millicelsius */ + type = "critical"; + }; + }; + + cooling-maps { + map0 { + trip = <&cpu_alert0>; + cooling-device = + <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + }; +};