linux-kernel - [PATCH v2 0/2] Add a generic virtual thermal sensor

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Message-Id: <20210917072732.611140-1-abailon@baylibre.com>
Date:   Fri, 17 Sep 2021 09:27:30 +0200
From:   Alexandre Bailon <abailon@...libre.com>
To:     rui.zhang@...el.com, daniel.lezcano@...aro.org, amitk@...nel.org
Cc:     linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        ben.tseng@...iatek.com, khilman@...libre.com, mka@...omium.org,
        Alexandre Bailon <abailon@...libre.com>
Subject: [PATCH v2 0/2]  Add a generic virtual thermal sensor

This series add a virtual thermal sensor.
It could be used to get a temperature using some thermal sensors.
Currently, the supported operations are max, min and avg.
The virtual sensor could be easily extended to support others operations.

Note:
Currently, thermal drivers must explicitly register their sensors to make them
available to the virtual sensor.
This doesn't seem a good solution to me and I think it would be preferable to
update the framework to register the list of each available sensors.

Changes in v2:
- Fix some warnings / errors reported by kernel test robot
- rename some struct and functions with a more accurate name
- update the dt bindings: rename type attribute to aggregation-function
- factorize a little bit the aggregation functions

Alexandre Bailon (2):
  dt-bindings: Add bindings for the virtual thermal sensor
  thermal: add a virtual sensor to aggregate temperatures

 .../thermal/virtual,thermal-sensor.yaml       |  67 +++
 drivers/thermal/Kconfig                       |   8 +
 drivers/thermal/Makefile                      |   1 +
 drivers/thermal/virtual-sensor.h              |  51 +++
 drivers/thermal/virtual_sensor.c              | 400 ++++++++++++++++++
 include/dt-bindings/thermal/virtual-sensor.h  |  15 +
 6 files changed, 542 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/thermal/virtual,thermal-sensor.yaml
 create mode 100644 drivers/thermal/virtual-sensor.h
 create mode 100644 drivers/thermal/virtual_sensor.c
 create mode 100644 include/dt-bindings/thermal/virtual-sensor.h

-- 
2.31.1