From patchwork Tue Feb 7 13:09:52 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Balsam CHIHI X-Patchwork-Id: 5079 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:adf:eb09:0:0:0:0:0 with SMTP id s9csp2839338wrn; Tue, 7 Feb 2023 05:11:33 -0800 (PST) X-Google-Smtp-Source: AK7set+K/7WrIPbNYPwxOxvN4XYExSVRB0XvfXrfVK8AnpQQVFes6ZOyCGCOADSAQJPqTCMftmgq X-Received: by 2002:a17:906:1f06:b0:878:714b:5e16 with SMTP id w6-20020a1709061f0600b00878714b5e16mr3611639ejj.28.1675775493541; Tue, 07 Feb 2023 05:11:33 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1675775493; cv=none; d=google.com; s=arc-20160816; b=fwxYWXuOUe0HMNKo6tT0s5jZTcV38J6K1EvwnRE0A2cW/+5i3lMjmITLzrj+un42r6 6OxvjTGO0h+HGhTc23L8iF6PenNZgd1q6j3EWTi/1T93qj1jkURm0qWEDD6olM2eI19o CtK9kwPdIcZQW+iNtVXXwfCis7DyTbE6Ttow7ksjst1ErIjCbW1XkxJibZ+5Kk+ZFnll Qb2SkHJTmD+3AgnrBxuc9INEjUNKJKx5Qrh8WwfTeYV+v7EmAfu0cNBoVc4OvWy6DSPd b3Civ6+EcA1aVrieZxTvq55GpXVv5HioCyGwnNMrU9OB8LMEtXyvHzZ3/2wJWfORjunT TdVw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from:dkim-signature; bh=zHHYbQWTXArEvDpNJJ6Ec38YulVcoF1CmHnyxseWv/o=; b=Xj3RdfmNAOqDVFiTNe5ULFqQf9D7D2WJ1VEpTx5pYk6mamjCmxAqMyoMsURmFwUbVr bTN5Xn7RHcxOWTiwXIf8TyLQ3hx/SoZ3LPA8PxU++nlw7tzWvl328HlUDc0s2GI0cZKX x/c3ZihfjVWAi9EwaIKbuO/rYrS2PgDa1JTuLdKZkHGF+W8kYQGZIghsSJ7F+qfbiPqJ 8OCVw3R/dmlLcR6PCwbT/DcbZKO7up3thwNUU9qagfbKJwSSZUL9Lud63EW9BEE4Iyh5 jITIEee0DB957NEENoD8Hl5PE8OR6kfs4f5UjDs+98zZVRRw3jNELpKS9PMGDWDbwDOk UpPA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@baylibre-com.20210112.gappssmtp.com header.s=20210112 header.b=hrcPy6ly; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id gc21-20020a1709072b1500b0088d90504560si15365522ejc.30.2023.02.07.05.11.10; Tue, 07 Feb 2023 05:11:33 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@baylibre-com.20210112.gappssmtp.com header.s=20210112 header.b=hrcPy6ly; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232425AbjBGNKi (ORCPT + 99 others); Tue, 7 Feb 2023 08:10:38 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59838 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232346AbjBGNKd (ORCPT ); Tue, 7 Feb 2023 08:10:33 -0500 Received: from mail-wm1-x335.google.com (mail-wm1-x335.google.com [IPv6:2a00:1450:4864:20::335]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AE8BB9008 for ; Tue, 7 Feb 2023 05:10:03 -0800 (PST) Received: by mail-wm1-x335.google.com with SMTP id az4-20020a05600c600400b003dff767a1f1so6136436wmb.2 for ; Tue, 07 Feb 2023 05:10:03 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20210112.gappssmtp.com; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=zHHYbQWTXArEvDpNJJ6Ec38YulVcoF1CmHnyxseWv/o=; b=hrcPy6lygRPAqNPp68oWhIxCSjNXqTBb2jThr91mU4GdhIGg5lgoVAkT2PFKb6fkZy j4Zky8tzxae7gzFiXjCl1drM8rV2Mo68ORaRjdAN9xmPrghlyXq9F8ytzewbZbJLOFuK pkKSlHA+7B537tTMOqrcqqZB4oEdXfqD5HbZo6U8mOFZ/y4hOpuvrg2PXygmle8V4okp jjQS/8aEPPY40umBsIfahaJ4TMmqSIwGQ7QLaaJG/R78l8Kmf4pFaqRYyNQ9UIz9UQIb OtKV5RRPA4hm7Vl/+2M2NAKG548KJHiO42bQ8tcglt46HugQkNRPjPX3uQhj7AENIsl9 WnRw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=zHHYbQWTXArEvDpNJJ6Ec38YulVcoF1CmHnyxseWv/o=; b=xAKTMTG/tvwucj5htLkfU9WWAijx+CKLL8o/+1p7asffzCLWUJ2ml0yVrDO/l2aQmg c+m9GYO0VFNcxaT+LiR8TWMTSwyDyTQ3DF9YBg7FqD2MPbX+tkjBZ4XManUb1DZs3Vch WX6oJDlx1I/rEA7I8KQ2QIn1lMlsKNIrEpj67sDPzG/x+Rj9jVd8KaYhjUO/4asrNQHS tlH2thRsuxBozVB3kJZMdqbJYk5jKWRsHPVKSPuUSpLXNzbXWXyWeVejAtHJguglnR/i NGqtWZw/fzd9wqtmfIsLCXDrs7zdmokn7PwuCcf6lkG9QLZl71OUMDN0IwpQQUnNHlpZ yp3Q== X-Gm-Message-State: AO0yUKXTis+X+yzDtTWQj36vPq0GN14PT1lTwVck9y/KcbhsWcW+QF/4 taw2QTDh8LCpi5hzeLCtmKi8+w== X-Received: by 2002:a05:600c:18a0:b0:3df:3bd6:63e5 with SMTP id x32-20020a05600c18a000b003df3bd663e5mr2932315wmp.12.1675775400789; Tue, 07 Feb 2023 05:10:00 -0800 (PST) Received: from t480-bl003.civfrance.com (58.188.158.77.rev.sfr.net. [77.158.188.58]) by smtp.gmail.com with ESMTPSA id g24-20020a7bc4d8000000b003df30c94850sm17987385wmk.25.2023.02.07.05.09.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Feb 2023 05:10:00 -0800 (PST) From: bchihi@baylibre.com To: daniel.lezcano@linaro.org, angelogioacchino.delregno@collabora.com, rafael@kernel.org, amitk@kernel.org, rui.zhang@intel.com, matthias.bgg@gmail.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, rdunlap@infradead.org, ye.xingchen@zte.com.cn, p.zabel@pengutronix.de Cc: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, devicetree@vger.kernel.org, khilman@baylibre.com, james.lo@mediatek.com, rex-bc.chen@mediatek.com Subject: [PATCH v13 0/6] Add LVTS Thermal Architecture Date: Tue, 7 Feb 2023 14:09:52 +0100 Message-Id: <20230207130958.608305-1-bchihi@baylibre.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-Spam-Status: No, score=1.4 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_NONE,RCVD_IN_SBL_CSS,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.6 X-Spam-Level: * X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1757177963945260195?= X-GMAIL-MSGID: =?utf-8?q?1757177963945260195?= From: Balsam CHIHI The LVTS (Low Voltage Thermal Sensor) driver is capable of monitoring multiple hot points. For that, it contains 7 thermal control blocks dedicated to specific devices on the die. Each control block can handle up to 4 sensors. The thermal controller supports several interrupts. One for the cold trip point, the hot trip point, the return to the normal trip point, and a specific programmable trip point to monitor the temperature dynamically. The temperature measurement can be done in two ways, the immediate mode where the temperature read is instantaneous and the filtered mode where the controller uses, by configuration, an average of a set of values removing the minimum and the maximum. Finally, it is composed of 2 finite-state machines responsible for the state of the temperature (cold, hot, hot 2 normal, hot hot), the triggering of the interrupts, and the monitoring of the temperature. As requested, the thermal driver has been reworked to reduce the complexity of the code. At this time, the 4 little CPUs and the 4 big CPUs are supported by the thermal driver.They are described in a data structure and more devices can be added later. The calibration routine has been simplified also. The series provide the following changes: - Move the Mediatek drivers inside a dedicated folder as their number is increasing - Add the DT bindings for the controller - Add the efuse node for the mt8195 - The LVTS driver - The thermal zones description in the DT Changelog: v13: - Rebase on top of "thermal/linux-next" : base-commit: a2c81dc59d41e92362ab7d41d0c15471ea50637d - Fix coding style issues - Remove "__init" from all functions - Remove "lvts_ctrl_enable" and "lvts_ctrl_disable" wrappers - Use "dev_err_probe" instead of "dev_dbg" in "lvts_probe" - Fix subject prefix - Add "mt8192" to dt-binding definition - Change dt-binding license to "GPL-2.0-only OR BSD-2-Clause" - Fix debugfs mutli-instance support v12: - Fix subject prefix - Add dual licenses to dt-binding - Rename "include/dt-bindings/thermal/mediatek-lvts.h" to "include/dt-bindings/thermal/mediatek,lvts-thermal.h" v11: - Rebase on top of "thermal/linux-next" : base=0d568e144ead70189e7f16066dcb155b78ff9266 - Remove unsupported SoC (mt8192) from dt-binding definition - Fix coding style issues : - Move litterals to define - Add interrupt macros - Remove wildcard : only mt8195 is supported for now v10: - Rebase on top of "thermal/linux-next" : thermal-v6.3-rc1 - Rework the LVTS driver - Add the thermal trip temperature and cooling devices for the sensors supported by the driver v9: - Rebase on top of 6.0.0-rc1 - Fix coding style issues - Fix commit titles and commit messages - Update dt-bindings : - Add "allOf:if:then:" - Use mt8192 as example (instead of mt8195) - Fix dt-binding errors - Fix DTS errors v8: - Fix coding style issues - Rebase on top of next-20220803 - Add multi-instance support : - Rewrite DT-binding and DTS : - Add DT-binding and DTS for LVTS_v4 (MT8192 and MT8195) - One LVTS node for each HW Domain (AP and MCU) - One SW Instance for each HW Domain - Add a Kconfig sub-menu entry for LVTS and LVTS_v4 SoCs - Replace platform_get_resource by platform_get_mem_or_io to get Base Address - Replace platform_get_resource by platform_get_irq to get Interrupt Number - Add "lvts_" prefix to functions and structs v7: - Fix coding style issues - Rewrite dt bindings - was not accurate - Use mt8195 for example (instead of mt8192) - Rename mt6873 to mt8192 - Remove clock name - Rebased on top of to series: - patchwork.kernel.org/project/linux-mediatek/list/?series=637849 - patchwork.kernel.org/project/linux-pm/list/?series=639386 v6: - Remove temperature aggregation (it will be added in another series) - Update the way to read the temperature (read one sensor instead of all) - Add support of mt8195 v5: - Use 'git mv' for the relocated file. v4: - Rebase to kernel-v5.13-rc1 v3: - change the expression in the lvts_temp_to_raw to dev_s64. v2: - Rebase to kernel-5.11-rc1. - sort headers - remove initial value 0 of msr_raw in the lvts_temp_to_raw. - disconstruct the api of lvts_read_tc_msr_raw. - add the initial value max_temp = 0 and compare e.q. in the lvts_read_all_tc_temperature. - add the return with an invalid number in the lvts_init. Balsam CHIHI (6): thermal: drivers: mediatek: Relocate driver to mediatek folder dt-bindings: thermal: mediatek: Add LVTS thermal controllers arm64: dts: mt8195: Add efuse node to mt8195 thermal: drivers: mediatek: Add the Low Voltage Thermal Sensor driver arm64: dts: mediatek: mt8195: Add thermal zones and thermal nodes arm64: dts: mediatek: mt8195: Add temperature mitigation threshold .../thermal/mediatek,lvts-thermal.yaml | 142 ++ arch/arm64/boot/dts/mediatek/mt8195.dtsi | 272 ++++ drivers/thermal/Kconfig | 14 +- drivers/thermal/Makefile | 2 +- drivers/thermal/mediatek/Kconfig | 37 + drivers/thermal/mediatek/Makefile | 2 + .../auxadc_thermal.c} | 2 +- drivers/thermal/mediatek/lvts_thermal.c | 1224 +++++++++++++++++ .../thermal/mediatek,lvts-thermal.h | 19 + 9 files changed, 1702 insertions(+), 12 deletions(-) create mode 100644 Documentation/devicetree/bindings/thermal/mediatek,lvts-thermal.yaml create mode 100644 drivers/thermal/mediatek/Kconfig create mode 100644 drivers/thermal/mediatek/Makefile rename drivers/thermal/{mtk_thermal.c => mediatek/auxadc_thermal.c} (99%) create mode 100644 drivers/thermal/mediatek/lvts_thermal.c create mode 100644 include/dt-bindings/thermal/mediatek,lvts-thermal.h base-commit: a2c81dc59d41e92362ab7d41d0c15471ea50637d