From patchwork Wed Apr 27 06:46:32 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "J, KEERTHY" X-Patchwork-Id: 568718 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 0E7D1C433F5 for ; Wed, 27 Apr 2022 06:47:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346420AbiD0GuL (ORCPT ); Wed, 27 Apr 2022 02:50:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48004 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233526AbiD0GuK (ORCPT ); Wed, 27 Apr 2022 02:50:10 -0400 Received: from lelv0143.ext.ti.com (lelv0143.ext.ti.com [198.47.23.248]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C466E4F44F; Tue, 26 Apr 2022 23:46:59 -0700 (PDT) Received: from fllv0035.itg.ti.com ([10.64.41.0]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id 23R6kte7058373; Wed, 27 Apr 2022 01:46:55 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1651042015; bh=ltmqJfmKEgeBcMnx1ndgzNfG+vhgSs/dz39mj7pbFVI=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=JmRlTSRqM6CwFNAKxS0mzb2xtg+/KYwjlwGOwwKV3oQ0SarmcOWBzUgK/lqCXWkXh lZm6TMO+3/yGWnfpr/voHan7fPrnLEFOVKOuwEzg3+qbKuVwrIZ7g80ZxII1zajbzz DXct3io9FKWsAoixnPcx5sT+q/gA82+RI0C4D3cg= Received: from DLEE113.ent.ti.com (dlee113.ent.ti.com [157.170.170.24]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 23R6kt3m042465 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 27 Apr 2022 01:46:55 -0500 Received: from DLEE106.ent.ti.com (157.170.170.36) by DLEE113.ent.ti.com (157.170.170.24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.14; Wed, 27 Apr 2022 01:46:55 -0500 Received: from lelv0326.itg.ti.com (10.180.67.84) by DLEE106.ent.ti.com (157.170.170.36) 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, 27 Apr 2022 01:46:55 -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 23R6kjX7031550; Wed, 27 Apr 2022 01:46:51 -0500 From: Keerthy To: , , , , , , CC: , , , Subject: [PATCH v6 1/4] dt-bindings: thermal: k3-j72xx: Add VTM bindings documentation Date: Wed, 27 Apr 2022 12:16:32 +0530 Message-ID: <20220427064635.24898-2-j-keerthy@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220427064635.24898-1-j-keerthy@ti.com> References: <20220427064635.24898-1-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 Reviewed-by: Rob Herring --- .../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..84b70fb108da --- /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: + maxItems: 3 + description: + Must be 3, in order to specify three register spaces for VTM cfg1, cfg2 + and 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"; + }; + }; + }; +...