From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751435AbdE2JRP (ORCPT ); Mon, 29 May 2017 05:17:15 -0400 Received: from mx.socionext.com ([202.248.49.38]:16071 "EHLO mx.socionext.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750787AbdE2JRN (ORCPT ); Mon, 29 May 2017 05:17:13 -0400 From: Kunihiko Hayashi To: rui.zhang@intel.com, edubezval@gmail.com Cc: linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, robh+dt@kernel.org, mark.rutland@arm.com, devicetree@vger.kernel.org, yamada.masahiro@socionext.com, masami.hiramatsu@linaro.org, jaswinder.singh@linaro.org, Kunihiko Hayashi Subject: [PATCH 2/4] dt-bindings: thermal: add binding documentation for UniPhier thermal monitor Date: Mon, 29 May 2017 18:15:43 +0900 Message-Id: <1496049345-14649-3-git-send-email-hayashi.kunihiko@socionext.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1496049345-14649-1-git-send-email-hayashi.kunihiko@socionext.com> References: <1496049345-14649-1-git-send-email-hayashi.kunihiko@socionext.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add devicetree binding documentation for thermal monitor implemented on Socionext UniPhier SoCs. Signed-off-by: Kunihiko Hayashi --- .../bindings/thermal/uniphier-thermal.txt | 54 ++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 Documentation/devicetree/bindings/thermal/uniphier-thermal.txt diff --git a/Documentation/devicetree/bindings/thermal/uniphier-thermal.txt b/Documentation/devicetree/bindings/thermal/uniphier-thermal.txt new file mode 100644 index 0000000..72834e1 --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/uniphier-thermal.txt @@ -0,0 +1,54 @@ +* UniPhier Thermal bindings + +This describes the devicetree bindings for thermal monitor supported by +PVT(Process, Voltage and Temperature) monitoring unit implemented on Socionext +UniPhier SoCs. + +Required properties: +- compatible : + - "socionext,uniphier-pxs2-thermal" : For UniPhier PXs2 SoC + - "socionext,uniphier-ld20-thermal" : For UniPhier LD20 SoC +- reg : Offset address of the thermal registers from sysctrl +- interrupts : IRQ for the temperature alarm +- #thermal-sensor-cells : Should be 0. See ./thermal.txt for details. + +Optional properties: +- socionext,tmod-calibration: A pair of calibrated values referred from PVT, + in case that the values aren't set on SoC, + like a reference board. + +Example: + + sysctrl@61840000 { + compatible = "socionext,uniphier-ld20-sysctrl", + "simple-mfd", "syscon"; + reg = <0x61840000 0x10000>; + ... + pvtctl: pvtctl { + compatible = "socionext,uniphier-ld20-thermal"; + interrupts = <0 3 1>; + #thermal-sensor-cells = <0>; + }; + ... + }; + + thermal-zones { + cpu_thermal { + polling-delay-passive = <250>; /* 250ms */ + polling-delay = <1000>; /* 1000ms */ + thermal-sensors = <&pvtctl>; + + trips { + cpu_crit: cpu_crit { + temperature = <95000>; /* 95C */ + hysteresis = <2000>; + type = "critical"; + }; + cpu_alert: cpu_alert { + temperature = <85000>; /* 85C */ + hysteresis = <2000>; + type = "passive"; + }; + }; + }; + }; -- 2.7.4