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: 6047271 Return-Path: X-Original-To: patchwork-linux-arm@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 1AF9B9F440 for ; Thu, 19 Mar 2015 08:01:35 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 3265520523 for ; Thu, 19 Mar 2015 08:01:34 +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 439D3202F8 for ; Thu, 19 Mar 2015 08:01:33 +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 1YYVM6-0000cv-QJ; Thu, 19 Mar 2015 07:59:02 +0000 Received: from szxga02-in.huawei.com ([119.145.14.65]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1YYVLB-000096-Bc for linux-arm-kernel@lists.infradead.org; Thu, 19 Mar 2015 07:58:07 +0000 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: , 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150319_005806_083981_D588BDA6 X-CRM114-Status: UNSURE ( 8.48 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -2.3 (--) Cc: devicetree@vger.kernel.org, linux-pm@vger.kernel.org, linuxarm@huawei.com, xuwei5@hisilicon.com, linux-kernel@vger.kernel.org, liguozhu@hisilicon.com, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, 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; + } + ....... + }