From patchwork Thu Feb 13 10:24:36 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "J, KEERTHY" X-Patchwork-Id: 11380129 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 50954109A for ; Thu, 13 Feb 2020 10:25:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2DB0524650 for ; Thu, 13 Feb 2020 10:25:18 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="JNxjVO4s" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729511AbgBMKZR (ORCPT ); Thu, 13 Feb 2020 05:25:17 -0500 Received: from lelv0142.ext.ti.com ([198.47.23.249]:37374 "EHLO lelv0142.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729428AbgBMKZR (ORCPT ); Thu, 13 Feb 2020 05:25:17 -0500 Received: from fllv0034.itg.ti.com ([10.64.40.246]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id 01DAOv5H103276; Thu, 13 Feb 2020 04:24:57 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1581589497; bh=txHZv0otXJyIYJZzcbb6130T3NOshgUyHxIn6qc3fv8=; h=From:To:CC:Subject:Date; b=JNxjVO4sms3FgjgLVnw0JAYNTpfkMkN7+WW1ldfXT9hbEMoNxMqawc6QIjVPv5RV9 LiOS/P3uNmwyNynXRZt7PC7EwXIiURd2zR5m1qhtanO+DTjrliLQIdu6jcOu6WKkm9 /TpDSuUL1wHXuOSMXPoLfgQFf4U50jjtV5XQrkq0= Received: from DFLE102.ent.ti.com (dfle102.ent.ti.com [10.64.6.23]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 01DAOvEl074336 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 13 Feb 2020 04:24:57 -0600 Received: from DFLE115.ent.ti.com (10.64.6.36) by DFLE102.ent.ti.com (10.64.6.23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3; Thu, 13 Feb 2020 04:24:56 -0600 Received: from lelv0327.itg.ti.com (10.180.67.183) by DFLE115.ent.ti.com (10.64.6.36) 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; Thu, 13 Feb 2020 04:24:56 -0600 Received: from a0393675ula.dhcp.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 01DAOqpX011317; Thu, 13 Feb 2020 04:24:53 -0600 From: Keerthy To: , , CC: , , , , , , , Subject: [PATCH 0/4] thermal: k3: Add support for bandgap sensors Date: Thu, 13 Feb 2020 15:54:36 +0530 Message-ID: <20200213102440.20539-1-j-keerthy@ti.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org 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. 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 | 59 +++ .../boot/dts/ti/am654-industrial-thermal.dtsi | 45 +++ arch/arm64/boot/dts/ti/k3-am65-wakeup.dtsi | 11 + drivers/thermal/Kconfig | 12 + drivers/thermal/Makefile | 1 + drivers/thermal/k3_bandgap.c | 342 ++++++++++++++++++ 6 files changed, 470 insertions(+) create mode 100644 Documentation/devicetree/bindings/thermal/ti,am654-thermal.yaml create mode 100644 arch/arm64/boot/dts/ti/am654-industrial-thermal.dtsi create mode 100644 drivers/thermal/k3_bandgap.c