From patchwork Wed Mar 25 07:50:25 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xinwei Kong X-Patchwork-Id: 6089051 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 1281A9F350 for ; Wed, 25 Mar 2015 07:53:08 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 2C6B92037D for ; Wed, 25 Mar 2015 07:53:07 +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 1D8DF20364 for ; Wed, 25 Mar 2015 07:53:06 +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 1Yag5u-0005CI-QO; Wed, 25 Mar 2015 07:51:18 +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 1Yag5H-0003Qu-KJ for linux-arm-kernel@lists.infradead.org; Wed, 25 Mar 2015 07:50:41 +0000 Received: from 172.24.2.119 (EHLO szxeml433-hub.china.huawei.com) ([172.24.2.119]) by szxrg02-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id CIY23231; Wed, 25 Mar 2015 15:49:45 +0800 (CST) Received: from localhost (10.46.109.98) by szxeml433-hub.china.huawei.com (10.82.67.210) with Microsoft SMTP Server id 14.3.158.1; Wed, 25 Mar 2015 15:49:34 +0800 From: Xinwei Kong To: , , Subject: [PATCH v1 2/2] dt-bindings: Document the hi6220 thermal sensor bindings Date: Wed, 25 Mar 2015 15:50:25 +0800 Message-ID: <1427269825-11324-3-git-send-email-kong.kongxinwei@hisilicon.com> X-Mailer: git-send-email 1.9.4.msysgit.2 In-Reply-To: <1427269825-11324-1-git-send-email-kong.kongxinwei@hisilicon.com> References: <1427269825-11324-1-git-send-email-kong.kongxinwei@hisilicon.com> MIME-Version: 1.0 X-Originating-IP: [10.46.109.98] X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150325_005040_387628_2D11E3D8 X-CRM114-Status: UNSURE ( 8.36 ) 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 From: kongxinwei 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 | 45 ++++++++++++++++++++++ 1 file changed, 45 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..ceb6e2e --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/hisilicon-thermal.txt @@ -0,0 +1,45 @@ +* 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: physical base address of thermal sensor and length of memory mapped + region. +- interrupt: The interrupt number to the cpu. Defines the interrupt used + by SOCTHERM. +- clock-names: Input clock name, should be 'thermal_clk'. +- clocks: phandles for clock specified in "clock-names" property. +- #thermal-sensor-cells: Should be 1. See ./thermal.txt for a description. + +** Required properties for child nodes : + +- hisilicon,tsensor-id: the index of thermal sensor and use it to distinguish + thermal sensor. For example: <0> stands for local sensor; <1> stands for + acpu1 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>; + } + ....... + }