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Message-Id: <20251020-imx91tmu-v7-0-48d7d9f25055@nxp.com>
Date: Mon, 20 Oct 2025 15:00:39 -0400
From: Frank Li <Frank.Li@....com>
To: "Rafael J. Wysocki" <rafael@...nel.org>,
Daniel Lezcano <daniel.lezcano@...aro.org>, Zhang Rui <rui.zhang@...el.com>,
Lukasz Luba <lukasz.luba@....com>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
Sascha Hauer <s.hauer@...gutronix.de>,
Pengutronix Kernel Team <kernel@...gutronix.de>,
Fabio Estevam <festevam@...il.com>, Pengfei Li <pengfei.li_1@....com>,
Marco Felsch <m.felsch@...gutronix.de>
Cc: linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org, ye.li@....com, joy.zou@....com,
Frank Li <Frank.Li@....com>,
Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
Peng Fan <peng.fan@....com>
Subject: [PATCH v7 0/3] thermal: imx91: Add support for i.MX91 thermal
monitoring unit
- Add binding doc
- Add imx91 thermal driver
Signed-off-by: Frank Li <Frank.Li@....com>
---
Changes in v7:
- Add dts change
- rework irq handle (see change logs in patch2)
- Link to v6: https://lore.kernel.org/r/20250219-imx91tmu-v6-0-7af2281bcada@nxp.com
Changes in v6:
- use set_trips
- remove mutex
- Link to v5: https://lore.kernel.org/r/20250218-imx91tmu-v5-0-76c0b27673e6@nxp.com
Changes in v5:
- Add irq support.
- change to period mode.
- Link to v4: https://lore.kernel.org/r/20241216-imx91tmu-v4-0-75caef7481b8@nxp.com
Changes in v4:
- Add Kryz's review tag for binding
- Add Marco's review tag for driver
- Use devm_add_action()
- Move pm_runtim_put before thermal_of_zone_register()
- Link to v3: https://lore.kernel.org/r/20241212-imx91tmu-v3-0-85e756b29437@nxp.com
Changes in v3:
- add ref thermal-sensor
- restrict #thermal-sensor-cells to 0 only
- Change to unevaluatedProperties
- add IMX91_TMU_ prefix for register define
- remove unused register define
- fix missed pm_runtime_put() at error path in imx91_tmu_get_temp()
- use dev variable in probe function
- use pm_runtime_set_active() in probe
- move START to imx91_tmu_get_temp()
- use DEFINE_RUNTIME_DEV_PM_OPS()
- keep set reset value because there are not sw "reset" bit in controller,
uboot may change and enable tmu.
- Link to v2: https://lore.kernel.org/r/20241210-imx91tmu-v2-0-5032aad4d88e@nxp.com
Changes in v2:
- use low case for hexvalue
- combine struct imx91_tmu and tmu_sensor
- simplify imx91_tmu_start() and imx91_tmu_enable()
- use s16 for imx91_tmu_get_temp(), which may negative value
- use reverse christmas tree style
- use run time pm
- use oneshot to sample temp
- register thermal zone after hardware init
- Link to v1: https://lore.kernel.org/r/20241209-imx91tmu-v1-0-7859c5387f31@nxp.com
---
Frank Li (1):
arm64: dts: imx91: Add thermal-sensor and thermal-zone support
Pengfei Li (2):
dt-bindings: thermal: fsl,imx91-tmu: add bindings for NXP i.MX91 thermal module
thermal: imx91: Add support for i.MX91 thermal monitoring unit
.../devicetree/bindings/thermal/fsl,imx91-tmu.yaml | 87 +++++
arch/arm64/boot/dts/freescale/imx91.dtsi | 58 ++++
drivers/thermal/Kconfig | 10 +
drivers/thermal/Makefile | 1 +
drivers/thermal/imx91_thermal.c | 384 +++++++++++++++++++++
5 files changed, 540 insertions(+)
---
base-commit: 2433b84761658ef123ae683508bc461b07c5b0f0
change-id: 20241209-imx91tmu-af2a7c042d8d
Best regards,
--
Frank Li <Frank.Li@....com>
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