From patchwork Wed May 11 11:06:56 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "J, KEERTHY" X-Patchwork-Id: 574178 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2610EC4332F for ; Wed, 11 May 2022 11:07:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240272AbiEKLHY (ORCPT ); Wed, 11 May 2022 07:07:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51386 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240017AbiEKLHX (ORCPT ); Wed, 11 May 2022 07:07:23 -0400 Received: from lelv0143.ext.ti.com (lelv0143.ext.ti.com [198.47.23.248]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 993CC46668; Wed, 11 May 2022 04:07:22 -0700 (PDT) Received: from lelv0265.itg.ti.com ([10.180.67.224]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id 24BB7JPL129945; Wed, 11 May 2022 06:07:19 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1652267239; bh=iugcDhDqvJ4Y7siaxoSSrn1UCCQSX0p9lNVWUJ7FsCg=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=aC0Wso3ADA+1oSR4qGeqioegGuZwMMi9N1WivgFzyUXa2w3Q4E+Eea9C/QnKPGnrl FScAFOURpeDMi+70F0XWRUvxlmsX6FTTok9HPG6qiFqZpSPef/xdVuGe0jkElHrqYj wJ3WB/cxxKvAML4eqaJqhLi9MFdq/9IH0Ps34Epg= Received: from DFLE101.ent.ti.com (dfle101.ent.ti.com [10.64.6.22]) by lelv0265.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 24BB7JcD012359 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 11 May 2022 06:07:19 -0500 Received: from DFLE113.ent.ti.com (10.64.6.34) by DFLE101.ent.ti.com (10.64.6.22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.14; Wed, 11 May 2022 06:07:18 -0500 Received: from lelv0326.itg.ti.com (10.180.67.84) by DFLE113.ent.ti.com (10.64.6.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.14 via Frontend Transport; Wed, 11 May 2022 06:07:18 -0500 Received: from keerthy.dhcp.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0326.itg.ti.com (8.15.2/8.15.2) with ESMTP id 24BB7ChT001558; Wed, 11 May 2022 06:07:16 -0500 From: Keerthy To: , , , , CC: , , , Subject: [PATCH v7 1/2] dt-bindings: thermal: k3-j72xx: Add VTM bindings documentation Date: Wed, 11 May 2022 16:36:56 +0530 Message-ID: <20220511110657.16305-2-j-keerthy@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220511110657.16305-1-j-keerthy@ti.com> References: <20220511110657.16305-1-j-keerthy@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Add VTM bindings documentation. In the Voltage Thermal Management Module(VTM), K3 J72XX supplies a voltage reference and a temperature sensor feature that are gathered in the band gap voltage and temperature sensor (VBGAPTS) module. The band gap provides current and voltage reference for its internal circuits and other analog IP blocks. The analog-to-digital converter (ADC) produces an output value that is proportional to the silicon temperature. Signed-off-by: Keerthy --- .../bindings/thermal/ti,j72xx-thermal.yaml | 64 +++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 Documentation/devicetree/bindings/thermal/ti,j72xx-thermal.yaml diff --git a/Documentation/devicetree/bindings/thermal/ti,j72xx-thermal.yaml b/Documentation/devicetree/bindings/thermal/ti,j72xx-thermal.yaml new file mode 100644 index 000000000000..83f8f444a133 --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/ti,j72xx-thermal.yaml @@ -0,0 +1,64 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/thermal/ti,j72xx-thermal.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Texas Instruments J72XX VTM (DTS) binding + +maintainers: + - Keerthy + +properties: + compatible: + items: + - enum: + - ti,j721e-vtm + - ti,j7200-vtm + + reg: + items: + - description: VTM cfg1 register space + - description: VTM cfg2 register space + - description: VTM efuse register space + + power-domains: + maxItems: 1 + + "#thermal-sensor-cells": + const: 1 + +required: + - compatible + - reg + - power-domains + - "#thermal-sensor-cells" + +additionalProperties: false + +examples: + - | + #include + wkup_vtm0: thermal-sensor@42040000 { + compatible = "ti,j721e-vtm"; + reg = <0x42040000 0x350>, + <0x42050000 0x350>, + <0x43000300 0x10>; + power-domains = <&k3_pds 154 TI_SCI_PD_EXCLUSIVE>; + #thermal-sensor-cells = <1>; + }; + + mpu_thermal: mpu-thermal { + polling-delay-passive = <250>; /* milliseconds */ + polling-delay = <500>; /* milliseconds */ + thermal-sensors = <&wkup_vtm0 0>; + + trips { + mpu_crit: mpu-crit { + temperature = <125000>; /* milliCelsius */ + hysteresis = <2000>; /* milliCelsius */ + type = "critical"; + }; + }; + }; +...