From patchwork Tue Mar 31 06:59:21 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xinwei Kong X-Patchwork-Id: 6127651 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 A66AA9F1BE for ; Tue, 31 Mar 2015 06:59:33 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id D2F19201CD for ; Tue, 31 Mar 2015 06:59:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DF768201C0 for ; Tue, 31 Mar 2015 06:59:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750910AbbCaG65 (ORCPT ); Tue, 31 Mar 2015 02:58:57 -0400 Received: from szxga01-in.huawei.com ([58.251.152.64]:34174 "EHLO szxga01-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751155AbbCaG6y (ORCPT ); Tue, 31 Mar 2015 02:58:54 -0400 Received: from 172.24.2.119 (EHLO szxeml431-hub.china.huawei.com) ([172.24.2.119]) by szxrg01-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id CLN28611; Tue, 31 Mar 2015 14:58:38 +0800 (CST) Received: from localhost (10.46.108.143) by szxeml431-hub.china.huawei.com (10.82.67.208) with Microsoft SMTP Server id 14.3.158.1; Tue, 31 Mar 2015 14:58:29 +0800 From: Xinwei Kong To: , CC: , , , , , , , , , Subject: [PATCH v2 1/2] dt-bindings: Document the hi6220 thermal sensor bindings Date: Tue, 31 Mar 2015 14:59:21 +0800 Message-ID: <1427785162-15172-2-git-send-email-kong.kongxinwei@hisilicon.com> X-Mailer: git-send-email 1.9.4.msysgit.2 In-Reply-To: <1427785162-15172-1-git-send-email-kong.kongxinwei@hisilicon.com> References: <1427785162-15172-1-git-send-email-kong.kongxinwei@hisilicon.com> MIME-Version: 1.0 X-Originating-IP: [10.46.108.143] 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 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>; + } + ....... + }