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: 333387 Return-Path: X-Original-To: incoming-imx@patchwork.ozlabs.org Delivered-To: patchwork-incoming-imx@bilbo.ozlabs.org Received: from casper.infradead.org (unknown [IPv6:2001:770:15f::2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id ADDA1140089 for ; Tue, 25 Mar 2014 21:51:25 +1100 (EST) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WSOws-0006Gt-Ul; Tue, 25 Mar 2014 10:51:15 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1WSOwq-00008O-Ea; Tue, 25 Mar 2014 10:51:12 +0000 Received: from mail-pa0-f53.google.com ([209.85.220.53]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WSOwm-000079-8j for linux-arm-kernel@lists.infradead.org; Tue, 25 Mar 2014 10:51:10 +0000 Received: by mail-pa0-f53.google.com with SMTP id ld10so268308pab.40 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=YSvckUkMSK4IVp1VN4qh2FljklN3JjmysnCL0u7wY9tfyw/+PDukvCdH2TjKmZYb6H +2C1fuBfFmChLF1nQTlHooft2cKZg1NvYYTNlD2gTCUciWxzbaOtYaGbQCLLIhna1t8s 6UnzRuSqGcRPGwqyzYQjwLezO96MUfHxRRK5tx6EeiAxCeTJAtTUqpH/IzLbl+yklt6Y Uey4paSXHtFOCZtQpmjuUoOXV1oIOaE+spKGhdSQtY8odisiAPDwLyBsvh65gbUf7Y0s //JRO6ml0lhEGi/ae+a0UVUKgjiPUDeXEj+WKjZfOBq2GnkOmxOzluU8UsQxnOXfQQRa rMxg== X-Gm-Message-State: ALoCoQmLV9vU6MjMrs0jnc9rkVU0k562IbJSEIWmAyStaufQQzbkgXijWqiKkaPzkBMgoay6PraH 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 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140325_065108_381759_0F0F1C4E X-CRM114-Status: GOOD ( 13.89 ) X-Spam-Score: -2.6 (--) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-2.6 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [209.85.220.53 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: Mark Rutland , devicetree@vger.kernel.org, Russell King , Ian Campbell , Pawel Moll , Stephen Warren , Tony Lindgren , linux-kernel@vger.kernel.org, Rob Herring , =?UTF-8?q?Beno=C3=AEt=20Cousson?= , Alex Shi , linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org List-Id: linux-imx-kernel.lists.patchwork.ozlabs.org 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>; + }; + }; +};