From patchwork Tue Aug 29 08:17:44 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tao Wang X-Patchwork-Id: 9926853 X-Patchwork-Delegate: eduardo.valentin@ti.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id B444A603B4 for ; Tue, 29 Aug 2017 08:25:09 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A176D28895 for ; Tue, 29 Aug 2017 08:25:09 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 965842889E; Tue, 29 Aug 2017 08:25:09 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 44960288A3 for ; Tue, 29 Aug 2017 08:25:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751422AbdH2IYN (ORCPT ); Tue, 29 Aug 2017 04:24:13 -0400 Received: from szxga04-in.huawei.com ([45.249.212.190]:5482 "EHLO szxga04-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751294AbdH2IYG (ORCPT ); Tue, 29 Aug 2017 04:24:06 -0400 Received: from 172.30.72.59 (EHLO DGGEMS401-HUB.china.huawei.com) ([172.30.72.59]) by dggrg04-dlp.huawei.com (MOS 4.4.6-GA FastPath queued) with ESMTP id DGC68823; Tue, 29 Aug 2017 16:24:04 +0800 (CST) Received: from HSH1000038028.huawei.com (10.177.161.152) by DGGEMS401-HUB.china.huawei.com (10.3.19.201) with Microsoft SMTP Server id 14.3.301.0; Tue, 29 Aug 2017 16:23:54 +0800 From: Tao Wang To: , , , , , , CC: , , , , , , , Subject: [PATCH v4 1/3] dt-bindings: Document the hi3660 thermal sensor bindings Date: Tue, 29 Aug 2017 16:17:44 +0800 Message-ID: <1503994666-13954-2-git-send-email-kevin.wangtao@hisilicon.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1503994666-13954-1-git-send-email-kevin.wangtao@hisilicon.com> References: <1503994666-13954-1-git-send-email-kevin.wangtao@hisilicon.com> MIME-Version: 1.0 X-Originating-IP: [10.177.161.152] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A090203.59A524A4.0059, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2014-11-16 11:51:01, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: bc4b412c19a7039dd17be252292c34a6 Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Tao Wang This adds documentation of device tree bindings for the thermal sensor controller of hi3660 SoC. Signed-off-by: Tao Wang --- .../devicetree/bindings/thermal/hisi-tsensor.txt | 37 ++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 Documentation/devicetree/bindings/thermal/hisi-tsensor.txt diff --git a/Documentation/devicetree/bindings/thermal/hisi-tsensor.txt b/Documentation/devicetree/bindings/thermal/hisi-tsensor.txt new file mode 100644 index 0000000..4643dbe --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/hisi-tsensor.txt @@ -0,0 +1,37 @@ +* Temperature Sensor on hisilicon SoC + +Hisilicon SoC supplies temperature sensor feature, each CPU cluster and G3D +area contains a temperture sensor. The temperture sensor produces an output +value which has a linear relationship with the temperture of the area. + +for Hi3660, +sensor0 monitors the temperture of A53; +sensor1 monitors the temperture of A72; +sensor2 monitors the temperture of GPU; +sensor3 is a virtual sensor, which produces the maximum value of all sensors; +sensor4 is a virtual sensor, which produces the average value of all sensors. + +** Required properties : +- compatible: "hisilicon,thermal-tsensor". +- reg: physical reg address of thermal sensor and length of memory mapped + region. +- hisi,tsensors: number of hardware tsensors +- hisi,coef: An array of integers (one signed cell) containing + coefficients to turn adc value to temperture. +- hisi,adc-range: adc value range, minimum value is followed by maximum value. +- #thermal-sensor-cells: Should be 1. See ./thermal.txt for a description. + +Example : +Hi3660: +tsensor: tsensor@fff30000 { + compatible = "hisilicon,hi3660-tsensor"; + #address-cells = <2>; + #size-cells = <2>; + reg = <0x0 0xfff3001c 0x0 0x4>, + <0x0 0xfff3005c 0x0 0x4>, + <0x0 0xfff3009c 0x0 0x4>; + hisi,tsensors = ; + hisi,coef = <165000 (-40000)>; + hisi,adc-range = <0x74 0x39A>; + #thermal-sensor-cells = <1>; +};