| Message ID | 20200318083028.9984-1-j-keerthy@ti.com |
|---|---|
| Headers | show
Return-Path: <SRS0=uBtF=5D=vger.kernel.org=devicetree-owner@kernel.org> X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.9 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4A4E1C5ACD7 for <linux-devicetree@archiver.kernel.org>; Wed, 18 Mar 2020 08:30:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 165AA2076F for <linux-devicetree@archiver.kernel.org>; Wed, 18 Mar 2020 08:30:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="VIwNlZNt" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727319AbgCRIao (ORCPT <rfc822;linux-devicetree@archiver.kernel.org>); Wed, 18 Mar 2020 04:30:44 -0400 Received: from lelv0143.ext.ti.com ([198.47.23.248]:36046 "EHLO lelv0143.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726786AbgCRIao (ORCPT <rfc822; devicetree@vger.kernel.org>); Wed, 18 Mar 2020 04:30:44 -0400 Received: from fllv0035.itg.ti.com ([10.64.41.0]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id 02I8UUaG041006; Wed, 18 Mar 2020 03:30:30 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1584520230; bh=jGa+GktmlDStzmVOTq3HJze3DKU2zZ2qyKfIt2MEWjc=; h=From:To:CC:Subject:Date; b=VIwNlZNtM2IJ9ZRJQeWs07/yGjX+i5jXirzSLjOYuc3xPOFnKdTU2Quiobr4v1YH+ dxNW7K3BcaOQGj9JXNer0j/EZ9qTLGI2QsTIMp4TFKlXyM+1Wlncn3uXgoUypwyVfk FStEFSqXt6ALPmqVdR3JRznHwk3wlE+9xESFpipk= Received: from DLEE100.ent.ti.com (dlee100.ent.ti.com [157.170.170.30]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTP id 02I8UUMF029778; Wed, 18 Mar 2020 03:30:30 -0500 Received: from DLEE105.ent.ti.com (157.170.170.35) by DLEE100.ent.ti.com (157.170.170.30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3; Wed, 18 Mar 2020 03:30:30 -0500 Received: from fllv0039.itg.ti.com (10.64.41.19) 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 15.1.1847.3 via Frontend Transport; Wed, 18 Mar 2020 03:30:30 -0500 Received: from a0393675ula.dhcp.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id 02I8UQ8E108598; Wed, 18 Mar 2020 03:30:27 -0500 From: Keerthy <j-keerthy@ti.com> To: <rui.zhang@intel.com>, <robh+dt@kernel.org>, <daniel.lezcano@linaro.org> CC: <j-keerthy@ti.com>, <amit.kucheria@verdurent.com>, <t-kristo@ti.com>, <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org>, <linux-pm@vger.kernel.org>, <mark.rutland@arm.com> Subject: [PATCH v4 0/4] thermal: k3: Add support for bandgap sensors Date: Wed, 18 Mar 2020 14:00:24 +0530 Message-ID: <20200318083028.9984-1-j-keerthy@ti.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 Content-Type: text/plain X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: <devicetree.vger.kernel.org> X-Mailing-List: devicetree@vger.kernel.org |
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thermal: k3: Add support for bandgap sensors
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Add VTM thermal support. In the Voltage Thermal Management Module(VTM), K3 AM654 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. Add support for bandgap sensors. Currently reading temperatures and trend computing is supported. Changes in v4: * Fixed comments from Daniel to remove trend function. * Mostly cleaned up all the unused variables. * Driver from bool to tristate. Changes in v3: * Fixed errors seen with: dt_binding_check DT_SCHEMA_FILES=Documentation/devicetree/bindings/thermal/ti,am654-thermal.yaml Changes in v2: * Fixed yaml errors * renamed am654-industrial-thermal.dtsi to k3-am654-industrial-thermal.dtsi to follow the convention for k3 family. Keerthy (4): dt-bindings: thermal: k3: Add VTM bindings documentation thermal: k3: Add support for bandgap sensors arm64: dts: ti: am654: Add thermal zones arm64: dts: ti: am6: Add VTM node .../bindings/thermal/ti,am654-thermal.yaml | 56 ++++ arch/arm64/boot/dts/ti/k3-am65-wakeup.dtsi | 11 + .../dts/ti/k3-am654-industrial-thermal.dtsi | 45 +++ drivers/thermal/Kconfig | 11 + drivers/thermal/Makefile | 1 + drivers/thermal/k3_bandgap.c | 288 ++++++++++++++++++ 6 files changed, 412 insertions(+) create mode 100644 Documentation/devicetree/bindings/thermal/ti,am654-thermal.yaml create mode 100644 arch/arm64/boot/dts/ti/k3-am654-industrial-thermal.dtsi create mode 100644 drivers/thermal/k3_bandgap.c