From patchwork Wed Feb 19 07:43:10 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "J, KEERTHY" X-Patchwork-Id: 11390567 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 2A3A0138D for ; Wed, 19 Feb 2020 07:43:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0AB1921D56 for ; Wed, 19 Feb 2020 07:43:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="h64cn8WI" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726663AbgBSHne (ORCPT ); Wed, 19 Feb 2020 02:43:34 -0500 Received: from fllv0015.ext.ti.com ([198.47.19.141]:43048 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726593AbgBSHne (ORCPT ); Wed, 19 Feb 2020 02:43:34 -0500 Received: from fllv0035.itg.ti.com ([10.64.41.0]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 01J7hOdE040693; Wed, 19 Feb 2020 01:43:24 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1582098204; bh=39unl09EiHVV1q7RtYXNt3apDWs2Z8nNFnTZL5Gg2lk=; h=From:To:CC:Subject:Date; b=h64cn8WI7kZBbPY9GFJVjgdBk0BJshC67I4ZGt4y9tPsrBZA+XNMha1PoIJoOQyv6 XOkG76suiFwei3F8vQDGtLBw5MLPgwrkvi3nqpILUOAOWASIKX9S4ij+DPr4U8scty NtoROU/1bVyjeyVjHytZmXL/RfWF8FCXLQDZDEQI= Received: from DFLE104.ent.ti.com (dfle104.ent.ti.com [10.64.6.25]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTP id 01J7hOLm009995; Wed, 19 Feb 2020 01:43:24 -0600 Received: from DFLE102.ent.ti.com (10.64.6.23) by DFLE104.ent.ti.com (10.64.6.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3; Wed, 19 Feb 2020 01:43:24 -0600 Received: from lelv0326.itg.ti.com (10.180.67.84) 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 via Frontend Transport; Wed, 19 Feb 2020 01:43:24 -0600 Received: from a0393675ula.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 01J7hKCY068778; Wed, 19 Feb 2020 01:43:20 -0600 From: Keerthy To: , , CC: , , , , , , , Subject: [PATCH v3 0/4] thermal: k3: Add support for bandgap sensors Date: Wed, 19 Feb 2020 13:13:10 +0530 Message-ID: <20200219074314.22829-1-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. 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 | 57 +++ arch/arm64/boot/dts/ti/k3-am65-wakeup.dtsi | 11 + .../dts/ti/k3-am654-industrial-thermal.dtsi | 45 +++ drivers/thermal/Kconfig | 12 + drivers/thermal/Makefile | 1 + drivers/thermal/k3_bandgap.c | 342 ++++++++++++++++++ 6 files changed, 468 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