From patchwork Tue Feb 28 11:22:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Daniel Lezcano X-Patchwork-Id: 657502 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 A0625C7EE45 for ; Tue, 28 Feb 2023 11:23:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231487AbjB1LXA (ORCPT ); Tue, 28 Feb 2023 06:23:00 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42456 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231484AbjB1LW5 (ORCPT ); Tue, 28 Feb 2023 06:22:57 -0500 Received: from mail-wm1-x332.google.com (mail-wm1-x332.google.com [IPv6:2a00:1450:4864:20::332]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7122D1E9D0 for ; Tue, 28 Feb 2023 03:22:50 -0800 (PST) Received: by mail-wm1-x332.google.com with SMTP id az36so6166514wmb.1 for ; Tue, 28 Feb 2023 03:22:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1677583369; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=9u3avS53dP4bLZ/KQ4MlcvGbwd00ahwus1BaYxgHcWk=; b=zSTSPLq0Sc8Dregfpit8qSU3LOq3N17gRSFq05Nd2J6jCiabXAViYBr9dyUUI57DNS KXzvLJxgubeg+9FKPfDnMBixeGI1YS/KHtrxEFvtDiHxcnC22IfUBtpyUAYiXEjCgPW2 NGrSkeYVJ/BlNyxgZJfvGN3lmBvN624+1XUEOmaAyk+JcjFPAZPEx0JG+a+pCZe3CvAU DokCFzOCFjJMFkRCgqUe6HZIlNORwKI2P0LvuOsMGAlGYax8zfezh/x1r9TFM6jlmU2b huudGOEZRAmD1+eX2qtfLM9nmhLh8VLueddpyUcIXD9TegnQcT0vLA5hPXRNEnbj1BIo 041g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1677583369; 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=9u3avS53dP4bLZ/KQ4MlcvGbwd00ahwus1BaYxgHcWk=; b=lvkAhcGSw5nZozJIQnfbz01EPEU0Y64MucIvXLxMb5VKfYJToEAFlMYSQdnPnbqAsV QOAg74CCpiKAKXvyJezs71oxdFKef8UwiYAh1mj7ZJ/P2dJENrQ4m4Lj2Gw9L/tW/rwg RFicipNp49p8Ke9+/ZVpMA1HDiaKwyYiwXWS7z9LU94/6VlwqnEPOWqFKz5Iit7aEEPn 0FEPNz/q8znW32MsjAfKwzsGxzRpoyfSdIQHs1rj9Vbdb1/xEvWLDWQB/WxqIbTmkBtM nNaBP9xWi1ihAA05+p0lC9e8zK7Ek5E6lwpe9HdAqiqOEQAQQjfCRT6jJDGspWyjLCqL ZybA== X-Gm-Message-State: AO0yUKWUStzWNEVxs5tEQOzQuteUTkfEVxBsd0DwBoaEY/kMCyXS3SBM uT5oCX2LYdW3J0FgwYJQtWO/pg== X-Google-Smtp-Source: AK7set/BWDie4qSThB1QZG0XDbGp1+sfK0fQVCBHGw+K1Mv3xY4WCqftw9soN9raT/rQBGEAAomcIw== X-Received: by 2002:a05:600c:35cf:b0:3eb:3104:efec with SMTP id r15-20020a05600c35cf00b003eb3104efecmr1866647wmq.16.1677583368710; Tue, 28 Feb 2023 03:22:48 -0800 (PST) Received: from mai.box.freepro.com ([2a05:6e02:1041:c10:6830:6390:2815:b6a5]) by smtp.gmail.com with ESMTPSA id z5-20020a5d6545000000b002c5501a5803sm9598130wrv.65.2023.02.28.03.22.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 28 Feb 2023 03:22:48 -0800 (PST) From: Daniel Lezcano To: rafael@kernel.org, daniel.lezcano@linaro.org Cc: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, Zhang Rui , Len Brown , Damien Le Moal , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , Jean Delvare , Guenter Roeck , Jonathan Cameron , Lars-Peter Clausen , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Dmitry Torokhov , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Ido Schimmel , Petr Machata , Gregory Greenman , Kalle Valo , Sebastian Reichel , Liam Girdwood , Mark Brown , Miquel Raynal , Amit Kucheria , Florian Fainelli , Broadcom internal kernel review list , Ray Jui , Scott Branden , Markus Mayer , Support Opensource , Andy Gross , Bjorn Andersson , Konrad Dybcio , Thara Gopinath , =?utf-8?q?Niklas_S=C3=B6derlund?= , Heiko Stuebner , Bartlomiej Zolnierkiewicz , Krzysztof Kozlowski , Alim Akhtar , Orson Zhai , Baolin Wang , Chunyan Zhang , Vasily Khoruzhick , Yangtao Li , Thierry Reding , Jonathan Hunter , Talel Shenhar , Eduardo Valentin , Keerthy , Kunihiko Hayashi , Masami Hiramatsu , Matthias Brugger , AngeloGioacchino Del Regno , Stefan Wahren , Zheng Yongjun , Yang Li , Srinivas Pandruvada , Daniel Golle , Balsam CHIHI , Mikko Perttunen , linux-acpi@vger.kernel.org, linux-ide@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-hwmon@vger.kernel.org, linux-iio@vger.kernel.org, linux-sunxi@lists.linux.dev, linux-input@vger.kernel.org, netdev@vger.kernel.org, linux-wireless@vger.kernel.org, linux-rpi-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-tegra@vger.kernel.org, linux-omap@vger.kernel.org, linux-mediatek@lists.infradead.org Subject: [PATCH v4 00/19] Self-encapsulate the thermal zone device structure Date: Tue, 28 Feb 2023 12:22:19 +0100 Message-Id: <20230228112238.2312273-1-daniel.lezcano@linaro.org> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org The exported thermal headers expose the thermal core structure while those should be private to the framework. The initial idea was the thermal sensor drivers use the thermal zone device structure pointer to pass it around from the ops to the thermal framework API like a handler. Unfortunately, different drivers are using and abusing the internals of this structure to hook the associated struct device, read the internals values, take the lock, etc ... In order to fix this situation, let's encapsulate the structure leaking the more in the different drivers: the thermal_zone_device structure. This series revisit the existing drivers using the thermal zone private structure internals to change the access to something else. For instance, the get_temp() ops is using the tz->dev to write a debug trace. Despite the trace is not helpful, we can check the return value for the get_temp() ops in the call site and show the message in this place. With this set of changes, the thermal_zone_device is almost self-encapsulated. As usual, the acpi driver needs a more complex changes, so that will come in a separate series along with the structure moved the private core headers. Changelog: - V4: - Collected more tags - Fixed a typo therma_zone_device_priv() for db8500 - Remove traces patch [20/20] to be submitted separetely - V3: - Split the first patch into three to reduce the number of recipients per change - Collected more tags - Added missing changes for ->devdata in some drivers - Added a 'type' accessor - Replaced the 'type' to 'id' changes by the 'type' accessor - Used the 'type' accessor in the drivers - V2: - Collected tags - Added missing changes for ->devdata for the tsens driver - Renamed thermal_zone_device_get_data() to thermal_zone_priv() - Added stubs when CONFIG_THERMAL is not set - Dropped hwmon change where we remove the tz->lock usage Thank you all for your comments Cc: "Rafael J. Wysocki" Cc: Zhang Rui Cc: Len Brown Cc: Damien Le Moal Cc: Shawn Guo Cc: Sascha Hauer Cc: Pengutronix Kernel Team Cc: Fabio Estevam Cc: NXP Linux Team Cc: Jean Delvare Cc: Guenter Roeck Cc: Jonathan Cameron Cc: Lars-Peter Clausen Cc: Chen-Yu Tsai Cc: Jernej Skrabec Cc: Samuel Holland Cc: Dmitry Torokhov Cc: "David S. Miller" Cc: Eric Dumazet Cc: Jakub Kicinski Cc: Paolo Abeni Cc: Ido Schimmel Cc: Petr Machata Cc: Gregory Greenman Cc: Kalle Valo Cc: Sebastian Reichel Cc: Liam Girdwood Cc: Mark Brown Cc: Miquel Raynal Cc: Daniel Lezcano Cc: Amit Kucheria Cc: Florian Fainelli Cc: Broadcom internal kernel review list Cc: Ray Jui Cc: Scott Branden Cc: Markus Mayer Cc: Support Opensource Cc: Andy Gross Cc: Bjorn Andersson Cc: Konrad Dybcio Cc: Thara Gopinath Cc: "Niklas Söderlund" Cc: Heiko Stuebner Cc: Bartlomiej Zolnierkiewicz Cc: Krzysztof Kozlowski Cc: Alim Akhtar Cc: Orson Zhai Cc: Baolin Wang Cc: Chunyan Zhang Cc: Vasily Khoruzhick Cc: Yangtao Li Cc: Thierry Reding Cc: Jonathan Hunter Cc: Talel Shenhar Cc: Eduardo Valentin Cc: Keerthy Cc: Kunihiko Hayashi Cc: Masami Hiramatsu Cc: Matthias Brugger Cc: AngeloGioacchino Del Regno Cc: Stefan Wahren Cc: Zheng Yongjun Cc: Yang Li Cc: Srinivas Pandruvada Cc: Daniel Golle Cc: Balsam CHIHI Cc: Mikko Perttunen Cc: linux-acpi@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-ide@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-hwmon@vger.kernel.org Cc: linux-iio@vger.kernel.org Cc: linux-sunxi@lists.linux.dev Cc: linux-input@vger.kernel.org Cc: netdev@vger.kernel.org Cc: linux-wireless@vger.kernel.org Cc: linux-pm@vger.kernel.org Cc: linux-rpi-kernel@lists.infradead.org Cc: linux-arm-msm@vger.kernel.org Cc: linux-renesas-soc@vger.kernel.org Cc: linux-rockchip@lists.infradead.org Cc: linux-samsung-soc@vger.kernel.org Cc: linux-tegra@vger.kernel.org Cc: linux-omap@vger.kernel.org Cc: linux-mediatek@lists.infradead.org Daniel Lezcano (19): thermal/core: Add a thermal zone 'devdata' accessor thermal/core: Use the thermal zone 'devdata' accessor in thermal located drivers thermal/core: Use the thermal zone 'devdata' accessor in hwmon located drivers thermal/core: Use the thermal zone 'devdata' accessor in remaining drivers thermal/core: Show a debug message when get_temp() fails thermal: Remove debug or error messages in get_temp() ops thermal/hwmon: Do not set no_hwmon before calling thermal_add_hwmon_sysfs() thermal/hwmon: Use the right device for devm_thermal_add_hwmon_sysfs() thermal: Don't use 'device' internal thermal zone structure field thermal/core: Add thermal_zone_device structure 'type' accessor thermal/drivers/spear: Don't use tz->device but pdev->dev thermal: Add a thermal zone id accessor thermal: Use thermal_zone_device_type() accessor thermal/drivers/da9062: Don't access the thermal zone device fields thermal/hwmon: Use the thermal_core.h header thermal/drivers/tegra: Remove unneeded lock when setting a trip point thermal/tegra: Do not enable the thermal zone, it is already enabled thermal/drivers/acerhdf: Make interval setting only at module load time thermal/drivers/acerhdf: Remove pointless governor test drivers/acpi/thermal.c | 18 +++---- drivers/ata/ahci_imx.c | 2 +- drivers/hwmon/hwmon.c | 4 +- drivers/hwmon/pmbus/pmbus_core.c | 2 +- drivers/hwmon/scmi-hwmon.c | 4 +- drivers/hwmon/scpi-hwmon.c | 2 +- drivers/iio/adc/sun4i-gpadc-iio.c | 2 +- drivers/input/touchscreen/sun4i-ts.c | 2 +- .../ethernet/chelsio/cxgb4/cxgb4_thermal.c | 2 +- .../ethernet/mellanox/mlxsw/core_thermal.c | 16 +++---- drivers/net/wireless/intel/iwlwifi/mvm/tt.c | 4 +- drivers/platform/x86/acerhdf.c | 19 ++------ drivers/power/supply/power_supply_core.c | 2 +- drivers/regulator/max8973-regulator.c | 2 +- drivers/thermal/amlogic_thermal.c | 4 +- drivers/thermal/armada_thermal.c | 14 ++---- drivers/thermal/broadcom/bcm2711_thermal.c | 3 +- drivers/thermal/broadcom/bcm2835_thermal.c | 3 +- drivers/thermal/broadcom/brcmstb_thermal.c | 8 ++-- drivers/thermal/broadcom/ns-thermal.c | 2 +- drivers/thermal/broadcom/sr-thermal.c | 2 +- drivers/thermal/da9062-thermal.c | 13 +++-- drivers/thermal/db8500_thermal.c | 2 +- drivers/thermal/dove_thermal.c | 7 +-- drivers/thermal/hisi_thermal.c | 5 +- drivers/thermal/imx8mm_thermal.c | 4 +- drivers/thermal/imx_sc_thermal.c | 9 ++-- drivers/thermal/imx_thermal.c | 47 +++++-------------- .../intel/int340x_thermal/int3400_thermal.c | 2 +- .../int340x_thermal/int340x_thermal_zone.c | 4 +- .../processor_thermal_device_pci.c | 4 +- drivers/thermal/intel/intel_pch_thermal.c | 2 +- .../thermal/intel/intel_quark_dts_thermal.c | 6 +-- drivers/thermal/intel/intel_soc_dts_iosf.c | 13 ++--- drivers/thermal/intel/x86_pkg_temp_thermal.c | 4 +- drivers/thermal/k3_bandgap.c | 4 +- drivers/thermal/k3_j72xx_bandgap.c | 2 +- drivers/thermal/kirkwood_thermal.c | 7 +-- drivers/thermal/max77620_thermal.c | 6 +-- drivers/thermal/mediatek/auxadc_thermal.c | 4 +- drivers/thermal/mediatek/lvts_thermal.c | 10 ++-- drivers/thermal/qcom/qcom-spmi-adc-tm5.c | 6 +-- drivers/thermal/qcom/qcom-spmi-temp-alarm.c | 6 +-- drivers/thermal/qcom/tsens.c | 6 +-- drivers/thermal/qoriq_thermal.c | 4 +- drivers/thermal/rcar_gen3_thermal.c | 5 +- drivers/thermal/rcar_thermal.c | 8 +--- drivers/thermal/rockchip_thermal.c | 8 +--- drivers/thermal/rzg2l_thermal.c | 3 +- drivers/thermal/samsung/exynos_tmu.c | 4 +- drivers/thermal/spear_thermal.c | 10 ++-- drivers/thermal/sprd_thermal.c | 2 +- drivers/thermal/st/st_thermal.c | 5 +- drivers/thermal/st/stm_thermal.c | 4 +- drivers/thermal/sun8i_thermal.c | 4 +- drivers/thermal/tegra/soctherm.c | 6 +-- drivers/thermal/tegra/tegra-bpmp-thermal.c | 6 ++- drivers/thermal/tegra/tegra30-tsensor.c | 31 ++++++------ drivers/thermal/thermal-generic-adc.c | 7 ++- drivers/thermal/thermal_core.c | 18 +++++++ drivers/thermal/thermal_helpers.c | 3 ++ drivers/thermal/thermal_hwmon.c | 9 ++-- drivers/thermal/thermal_hwmon.h | 4 +- drivers/thermal/thermal_mmio.c | 2 +- .../ti-soc-thermal/ti-thermal-common.c | 10 ++-- drivers/thermal/uniphier_thermal.c | 2 +- include/linux/thermal.h | 19 ++++++++ 67 files changed, 217 insertions(+), 247 deletions(-)