From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752661AbbHEMZy (ORCPT ); Wed, 5 Aug 2015 08:25:54 -0400 Received: from metis.ext.pengutronix.de ([92.198.50.35]:56180 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752498AbbHEMZw (ORCPT ); Wed, 5 Aug 2015 08:25:52 -0400 From: Sascha Hauer To: linux-pm@vger.kernel.org, Zhang Rui , Eduardo Valentin Cc: linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, Daniel Kurtz , kernel@pengutronix.de, Matthias Brugger , Sascha Hauer Subject: [PATCH 1/3] dt-bindings: thermal: Add binding document for Mediatek thermal controller Date: Wed, 5 Aug 2015 14:25:36 +0200 Message-Id: <1438777538-1269-2-git-send-email-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.4.6 In-Reply-To: <1438777538-1269-1-git-send-email-s.hauer@pengutronix.de> References: <1438777538-1269-1-git-send-email-s.hauer@pengutronix.de> X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::7 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: Sascha Hauer --- .../bindings/thermal/mediatek-thermal.txt | 38 ++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 Documentation/devicetree/bindings/thermal/mediatek-thermal.txt diff --git a/Documentation/devicetree/bindings/thermal/mediatek-thermal.txt b/Documentation/devicetree/bindings/thermal/mediatek-thermal.txt new file mode 100644 index 0000000..c425a0f --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/mediatek-thermal.txt @@ -0,0 +1,38 @@ +* Mediatek Thermal + +This describes the device tree binding for the Mediatek thermal controller +which measures the on-SoC temperatures. This device does not have its own ADC, +instead it directly controls the AUXADC via AHB bus accesses. For this reason +this device needs phandles to the AUXADC. Also it controls a mux in the +apmixedsys register space via AHB bus accesses, so a phandle to the APMIXEDSYS +is also needed. + +Required properties: +- compatible: "mediatek,mt8173-thermal" +- reg: Address range of the thermal controller +- interrupts: IRQ for the thermal controller +- clocks, clock-names: Clocks needed for the thermal controller. required + clocks are: + "therm": Main clock needed for register access + "auxadc": The AUXADC clock +- resets, reset-names: Reference to the reset controller controlling the thermal + controller. Required reset-names: + "therm": The main reset line +- mediatek,auxadc: A phandle to the AUXADC which the thermal controller uses +- mediatek,apmixedsys: A phandle to the APMIXEDSYS controller. +- #thermal-sensor-cells : Should be 1. See ./thermal.txt for a description + +Example: + + thermal: thermal@1100b000 { + #thermal-sensor-cells = <1>; + compatible = "mediatek,mt8173-thermal"; + reg = <0 0x1100b000 0 0x1000>; + interrupts = <0 70 IRQ_TYPE_LEVEL_LOW>; + clocks = <&pericfg CLK_PERI_THERM>, <&pericfg CLK_PERI_AUXADC>; + clock-names = "therm", "auxadc"; + resets = <&pericfg MT8173_PERI_THERM_SW_RST>; + reset-names = "therm"; + mediatek,auxadc = <&auxadc>; + mediatek,apmixedsys = <&apmixedsys>; + }; -- 2.4.6