From patchwork Thu Mar 19 07:57:29 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xinwei Kong X-Patchwork-Id: 6047231 X-Patchwork-Delegate: eduardo.valentin@ti.com Return-Path: X-Original-To: patchwork-linux-pm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 298B89F440 for ; Thu, 19 Mar 2015 07:58:44 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 328FA2052A for ; Thu, 19 Mar 2015 07:58:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EC0A020524 for ; Thu, 19 Mar 2015 07:58:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750778AbbCSH6L (ORCPT ); Thu, 19 Mar 2015 03:58:11 -0400 Received: from szxga02-in.huawei.com ([119.145.14.65]:26195 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750799AbbCSH6J (ORCPT ); Thu, 19 Mar 2015 03:58:09 -0400 Received: from 172.24.2.119 (EHLO szxeml431-hub.china.huawei.com) ([172.24.2.119]) by szxrg02-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id CIS05296; Thu, 19 Mar 2015 15:57:17 +0800 (CST) Received: from localhost (10.46.60.225) by szxeml431-hub.china.huawei.com (10.82.67.208) with Microsoft SMTP Server id 14.3.158.1; Thu, 19 Mar 2015 15:57:04 +0800 From: kongxinwei To: , CC: , , , , , , Subject: [PATCH 3/3] dt-bindings: Document the hi6220 thermal sensor bindings Date: Thu, 19 Mar 2015 15:57:29 +0800 Message-ID: <1426751849-10604-4-git-send-email-kong.kongxinwei@hisilicon.com> X-Mailer: git-send-email 1.9.5.msysgit.0 In-Reply-To: <1426751849-10604-1-git-send-email-kong.kongxinwei@hisilicon.com> References: <1426751849-10604-1-git-send-email-kong.kongxinwei@hisilicon.com> MIME-Version: 1.0 X-Originating-IP: [10.46.60.225] X-CFilter-Loop: Reflected Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_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 adds documentation of device tree bindings for the thermal sensor controller of hi6220 SoC. Signed-off-by: Leo Yan Signed-off-by: kongxinwei --- .../bindings/thermal/hisilicon-thermal.txt | 51 ++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 Documentation/devicetree/bindings/thermal/hisilicon-thermal.txt diff --git a/Documentation/devicetree/bindings/thermal/hisilicon-thermal.txt b/Documentation/devicetree/bindings/thermal/hisilicon-thermal.txt new file mode 100644 index 0000000..b75c48e --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/hisilicon-thermal.txt @@ -0,0 +1,51 @@ +* Hisilicon Thermal + +This driver is for hi6220 SoC which contain 4 thermal sensor. + + 1. sensor 0: local sensor; + 2. sensor 1: remote sensor for ACPU cluster 1; + 3. sensor 2: remote sensor for ACPU cluster 2; + 4. sensor 3: remote sensor for GPU. + +Every sensor use one child node to represent it, so thermal sensor include +parent node and four child node. The parent node describe common feature and +child node describe private feature for thermal sensor; + +** Required properties : + +- compatible : "hisilicon,tsensor"; +- reg : address range of the thermal sensor registers; +- interrupt : Standard way to define interrupt numbr; +- clock-names : Should be "thermal_clk". + See: Documentation/devicetree/bindings/resource-names.txt; +- clocks : Phandle of the clock used by the thermal sensor. + See: Documentation/devicetree/bindings/clock/clock-bindingm.txt +- #thermal-sensor-cells : Should be 1. See ./thermal.txt for a description; + +** Required properties for child nodes : + +- hisilicon,tsensor-id : the index of thermal senor; +- hisilicon,tsensor-thres-temp : the interrupt threshold temperature of + thermal senor; +- hisilicon,tsensor-reset-temp : the reset temperature of the hardware SoC; +- hisilicon,tsensor-bind-irq : systerm interrupt binding thermal sensor; + +Example : + + tsensor: tsensor@0,f7030700 { + compatible = "hisilicon,tsensor"; + reg = <0x0 0xf7030700 0x0 0x1000>; + interrupts = <0 7 0x4>; + clocks = <&clock_sys HI6220_TSENSOR_CLK>; + clock-names = "thermal_clk"; + #thermal-sensor-cells = <1>; + + local_sensor { + hisilicon,tsensor-id = <0>; + hisilicon,tsensor-lag-value = <10>; + hisilicon,tsensor-thres-temp = <35000>; + hisilicon,tsensor-reset-temp = <100000>; + hisilicon,tsensor-bind-irq; + } + ....... + }