From patchwork Tue Feb 7 00:56:39 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Baoyou Xie X-Patchwork-Id: 9558981 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 EA1E3602B1 for ; Tue, 7 Feb 2017 00:58:50 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D5E1D26E4C for ; Tue, 7 Feb 2017 00:58:50 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C967628159; Tue, 7 Feb 2017 00:58:50 +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=-5.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, HK_RANDOM_FROM, RCVD_IN_DNSWL_HI, T_DKIM_INVALID 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 7747E26E4C for ; Tue, 7 Feb 2017 00:58:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751618AbdBGA6J (ORCPT ); Mon, 6 Feb 2017 19:58:09 -0500 Received: from mail-pg0-f49.google.com ([74.125.83.49]:33314 "EHLO mail-pg0-f49.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752672AbdBGA6I (ORCPT ); Mon, 6 Feb 2017 19:58:08 -0500 Received: by mail-pg0-f49.google.com with SMTP id 204so33068328pge.0 for ; Mon, 06 Feb 2017 16:58:08 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id; bh=Nr3g6Ob6yuAp+jdmPXgDKE1sALERrj4AaNGpLF9xOdQ=; b=f1YfUwhdVfWx2Hahf8MgJ1zHJk6omM5KUmDZCWlDqC59cO3zmGvFzZsLW7xhSwmH3n vEyIJ4fyQFxTR292t9mEeV+mZ8cUWt8h8r/FpSBsYlpxsQiNVZiiCU5K/uTF/3lp1qq9 zADBbB1L/t36X3zevEq6RYb85qJIVOkxN2LCw= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=Nr3g6Ob6yuAp+jdmPXgDKE1sALERrj4AaNGpLF9xOdQ=; b=WJn2AGz6LI/nXgThWMdXfBZ+x4hikXd8D65ynZf6m5zymqtoMLUxeYgQ/ogHr6lkhq Rndz+tvjHqlk8zw9utSAyBaWQgR+9O53nGuIX9eWuOafVKd6mOH4K0QaTJC51pw2CND2 +BUNLqiDhMUXyII6mWN61sDm3uVvV2ek0xdV+y8coyq87hZiIJIYwkSwH+MKpTqCDzCr PkKRKVQ0XzmYbbYjr2Iup8ncqP48P5GjkXB5JWViB4sk+vFok2toV3y/VeC7w/cBKy4O hldOXaEX7pQtcgqXqqDzKFUezwbsfTBXpQS905zMRM7bh7itkvPVkCQxvHl8IdlTxX0e PY7A== X-Gm-Message-State: AIkVDXJivKc2L1OAgL+TzqfPLXNihr7F7i+PRdRzYTEkwmDA20BqSWc3345oq8ugTFX/VS+8 X-Received: by 10.84.232.78 with SMTP id f14mr21787397pln.27.1486429087832; Mon, 06 Feb 2017 16:58:07 -0800 (PST) Received: from localhost.localdomain ([104.237.91.105]) by smtp.gmail.com with ESMTPSA id z74sm5423255pfd.70.2017.02.06.16.58.01 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 06 Feb 2017 16:58:06 -0800 (PST) From: Baoyou Xie To: mathieu.poirier@linaro.org, jun.nie@linaro.org, rui.zhang@intel.com, edubezval@gmail.com, robh+dt@kernel.org, mark.rutland@arm.com Cc: linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, shawnguo@kernel.org, baoyou.xie@linaro.org, xie.baoyou@zte.com.cn, chen.chaokai@zte.com.cn, wang.qiang01@zte.com.cn Subject: [PATCH v9 1/3] dt: bindings: add documentation for zx2967 family thermal sensor Date: Tue, 7 Feb 2017 08:56:39 +0800 Message-Id: <1486429001-31940-1-git-send-email-baoyou.xie@linaro.org> X-Mailer: git-send-email 2.7.4 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 This patch adds dt-binding documentation for zx2967 family thermal sensor. Signed-off-by: Baoyou Xie Acked-by: Rob Herring Reviewed-by: Shawn Guo --- .../devicetree/bindings/thermal/zx2967-thermal.txt | 116 +++++++++++++++++++++ 1 file changed, 116 insertions(+) create mode 100644 Documentation/devicetree/bindings/thermal/zx2967-thermal.txt diff --git a/Documentation/devicetree/bindings/thermal/zx2967-thermal.txt b/Documentation/devicetree/bindings/thermal/zx2967-thermal.txt new file mode 100644 index 0000000..0810644 --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/zx2967-thermal.txt @@ -0,0 +1,116 @@ +* ZTE zx2967 family Thermal + +Required Properties: +- compatible: should be one of the following. + * zte,zx296718-thermal +- reg: physical base address of the controller and length of memory mapped + region. +- clocks : Pairs of phandle and specifier referencing the controller's clocks. +- clock-names: "topcrm" for the topcrm clock. + "apb" for the apb clock. +- #thermal-sensor-cells: must be 0. + +Please note: slope coefficient defined in thermal-zones section need to be +multiplied by 1000. + +Example for tempsensor: + + tempsensor: tempsensor@148a000 { + compatible = "zte,zx296718-thermal"; + reg = <0x0148a000 0x20>; + clocks = <&topcrm TEMPSENSOR_GATE>, <&audiocrm AUDIO_TS_PCLK>; + clock-names = "topcrm", "apb"; + #thermal-sensor-cells = <0>; + }; + +Example for cooling device: + + cooling_dev: cooling_dev { + cluster0_cooling_dev: cluster0-cooling-dev { + #cooling-cells = <2>; + cpumask = <0xf>; + capacitance = <1500>; + }; + + cluster1_cooling_dev: cluster1-cooling-dev { + #cooling-cells = <2>; + cpumask = <0x30>; + capacitance = <2000>; + }; + }; + +Example for thermal zones: + + thermal-zones { + zx296718_thermal: zx296718_thermal { + polling-delay-passive = <500>; + polling-delay = <1000>; + sustainable-power = <6500>; + + thermal-sensors = <&tempsensor 0>; + /* + * slope need to be multiplied by 1000. + */ + coefficients = <1951 (-922)>; + + trips { + trip0: switch_on_temperature { + temperature = <90000>; + hysteresis = <2000>; + type = "passive"; + }; + + trip1: desired_temperature { + temperature = <100000>; + hysteresis = <2000>; + type = "passive"; + }; + + crit: critical_temperature { + temperature = <110000>; + hysteresis = <2000>; + type = "critical"; + }; + }; + + cooling-maps { + map0 { + trip = <&trip0>; + cooling-device = <&gpu 2 5>; + }; + + map1 { + trip = <&trip0>; + cooling-device = <&cluster0_cooling_dev 1 2>; + }; + + map2 { + trip = <&trip1>; + cooling-device = <&cluster0_cooling_dev 1 2>; + }; + + map3 { + trip = <&crit>; + cooling-device = <&cluster0_cooling_dev 1 2>; + }; + + map4 { + trip = <&trip0>; + cooling-device = <&cluster1_cooling_dev 1 2>; + contribution = <9000>; + }; + + map5 { + trip = <&trip1>; + cooling-device = <&cluster1_cooling_dev 1 2>; + contribution = <4096>; + }; + + map6 { + trip = <&crit>; + cooling-device = <&cluster1_cooling_dev 1 2>; + contribution = <4096>; + }; + }; + }; + };