From patchwork Thu Oct 23 09:40:04 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wang Caesar X-Patchwork-Id: 5138851 Return-Path: X-Original-To: patchwork-linux-rockchip@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 369EDC11AC for ; Thu, 23 Oct 2014 09:41:42 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 627C82025A for ; Thu, 23 Oct 2014 09:41:41 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 85D2620222 for ; Thu, 23 Oct 2014 09:41:40 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1XhEtn-0004g6-Id; Thu, 23 Oct 2014 09:41:39 +0000 Received: from regular1.263xmail.com ([211.150.99.140]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1XhEtE-0004LX-VO; Thu, 23 Oct 2014 09:41:06 +0000 Received: from wxt?rock-chips.com (unknown [192.168.167.87]) by regular1.263xmail.com (Postfix) with SMTP id B1EF4408D; Thu, 23 Oct 2014 17:40:38 +0800 (CST) X-263anti-spam: KSV:0; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-KSVirus-check: 0 X-ABS-CHECKED: 4 Received: from localhost (localhost.localdomain [127.0.0.1]) by smtp.263.net (Postfix) with ESMTP id D02A24406; Thu, 23 Oct 2014 17:40:38 +0800 (CST) X-RL-SENDER: wxt@rock-chips.com X-FST-TO: heiko@sntech.de X-SENDER-IP: 58.22.7.114 X-LOGIN-NAME: wxt@rock-chips.com X-UNIQUE-TAG: X-ATTACHMENT-NUM: 0 X-SENDER: wxt@rock-chips.com X-DNS-TYPE: 0 Received: from localhost (unknown [58.22.7.114]) by smtp.263.net (Postfix) whith ESMTP id 1540PXRDUD; Thu, 23 Oct 2014 17:40:40 +0800 (CST) From: Caesar Wang To: heiko@sntech.de, rui.zhang@intel.com, edubezval@gmail.com Subject: [PATCH v13 2/5] dt-bindings: document Rockchip thermal Date: Thu, 23 Oct 2014 17:40:04 +0800 Message-Id: <1414057207-1576-3-git-send-email-caesar.wang@rock-chips.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1414057207-1576-1-git-send-email-caesar.wang@rock-chips.com> References: <1414057207-1576-1-git-send-email-caesar.wang@rock-chips.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20141023_024105_397815_CA8B529C X-CRM114-Status: UNSURE ( 7.18 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.5 (/) Cc: huangtao@rock-chips.com, devicetree@vger.kernel.org, dbasehore@chromium.org, dmitry.torokhov@gmail.com, linux-pm@vger.kernel.org, linux-doc@vger.kernel.org, dianders@chromium.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, Caesar Wang , cf@rock-chips.com, cjf@rock-chips.com, zhengsq@rock-chips.com, linux-arm-kernel@lists.infradead.org, zyf@rock-chips.com X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-3.3 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE, 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 This add the necessary binding documentation for the thermal found on Rockchip SoCs Signed-off-by: zhaoyifeng Signed-off-by: Caesar Wang --- .../bindings/thermal/rockchip-thermal.txt | 53 ++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 Documentation/devicetree/bindings/thermal/rockchip-thermal.txt diff --git a/Documentation/devicetree/bindings/thermal/rockchip-thermal.txt b/Documentation/devicetree/bindings/thermal/rockchip-thermal.txt new file mode 100644 index 0000000..2860a93 --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/rockchip-thermal.txt @@ -0,0 +1,53 @@ +* Temperature Sensor ADC (TSADC) on rockchip SoCs + +Required properties: +- compatible: "rockchip,rk3288-tsadc" +- reg: physical base address of the controller and length of memory mapped + region. +- interrupts: The interrupt number to the cpu. The interrupt specifier format + depends on the interrupt controller. +- clocks: Must contain an entry for each entry in clock-names. +- clock-names: Shall be "tsadc" for the converter-clock, and "apb_pclk" for + the peripheral clock. +- #thermal-sensor-cells: Should be 1. See ./thermal.txt for a description. + +Exiample: +tsadc: tsadc@ff280000 { + compatible = "rockchip,rk3288-tsadc"; + reg = <0xff280000 0x100>; + interrupts = ; + clocks = <&cru SCLK_TSADC>, <&cru PCLK_TSADC>; + clock-names = "tsadc", "apb_pclk"; +}; + +Example: referring to thermal sensors: +thermal-zones { + cpu_thermal: cpu_thermal { + polling-delay-passive = <500>; /* milliseconds */ + polling-delay = <1000>; /* milliseconds */ + + /* sensor ID */ + thermal-sensors = <&tsadc 1>; + + trips { + cpu_alert0: cpu_alert { + temperature = <80000>; /* 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>; + }; + }; + }; +};