From patchwork Tue Apr 12 10:14:06 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "J, KEERTHY" X-Patchwork-Id: 561149 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 23788C433FE for ; Tue, 12 Apr 2022 11:33:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1352483AbiDLLfv (ORCPT ); Tue, 12 Apr 2022 07:35:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47152 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343960AbiDLLf3 (ORCPT ); Tue, 12 Apr 2022 07:35:29 -0400 Received: from fllv0016.ext.ti.com (fllv0016.ext.ti.com [198.47.19.142]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8F1921EAEB; Tue, 12 Apr 2022 03:14:31 -0700 (PDT) Received: from fllv0035.itg.ti.com ([10.64.41.0]) by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id 23CAERCM014348; Tue, 12 Apr 2022 05:14:27 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1649758467; bh=goIf/+oHT3mTd+K70oXaHeKMvUYn/pb85zWP3XydD7o=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=eBlVPQBr+D9K66/tOzRN+L+pVzIHVbPka8xUnAxvInz7jOTCkagFMqNEHftWk7LCL FASqmKSv7DXMv24EEtC+kIQZyEhAE62nUrzFtG1QJW44iO0dzNMHdSw7YBNs+PzSvD AiuY+v/cVz/g4p6kHJt3J/BJUkAzB9lV0qUoI1p8= Received: from DLEE110.ent.ti.com (dlee110.ent.ti.com [157.170.170.21]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 23CAERf3037804 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 12 Apr 2022 05:14:27 -0500 Received: from DLEE105.ent.ti.com (157.170.170.35) by DLEE110.ent.ti.com (157.170.170.21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.14; Tue, 12 Apr 2022 05:14:26 -0500 Received: from fllv0040.itg.ti.com (10.64.41.20) by DLEE105.ent.ti.com (157.170.170.35) 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; Tue, 12 Apr 2022 05:14:26 -0500 Received: from keerthy.dhcp.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0040.itg.ti.com (8.15.2/8.15.2) with ESMTP id 23CAEJmO122452; Tue, 12 Apr 2022 05:14:23 -0500 From: Keerthy To: , , , , CC: , , , , Subject: [PATCH v5 1/4] dt-bindings: thermal: k3-j72xx: Add VTM bindings documentation Date: Tue, 12 Apr 2022 15:44:06 +0530 Message-ID: <20220412101409.7980-2-j-keerthy@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220412101409.7980-1-j-keerthy@ti.com> References: <20220412101409.7980-1-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 | 62 +++++++++++++++++++ 1 file changed, 62 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..8483c495cb9a --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/ti,j72xx-thermal.yaml @@ -0,0 +1,62 @@ +# 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: + const: ti,j721e-vtm + oneOf: + - enum: + - ti,j721e-vtm + - ti,j7200-vtm + + reg: + maxItems: 3 + + power-domains: + maxItems: 1 + + "#thermal-sensor-cells": + const: 1 + +required: + - compatible + - reg + - power-domains + - "#thermal-sensor-cells" + +additionalProperties: false + +examples: + - | + #include + wkup_vtm0: wkup_vtm0@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"; + }; + }; + }; +...