linux-kernel - [PATCH v9,0/7] Add LVTS thermal architecture

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Message-Id: <20220817080757.352021-1-bchihi@baylibre.com>
Date:   Wed, 17 Aug 2022 10:07:50 +0200
From:   bchihi@...libre.com
To:     rafael@...nel.org, rui.zhang@...el.com, daniel.lezcano@...aro.org,
        amitk@...nel.org
Cc:     linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        khilman@...libre.com, mka@...omium.org, robh+dt@...nel.org,
        krzk+dt@...nel.org, matthias.bgg@...il.com, p.zabel@...gutronix.de,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, james.lo@...iatek.com,
        fan.chen@...iatek.com, louis.yu@...iatek.com,
        rex-bc.chen@...iatek.com, abailon@...libre.com
Subject: [PATCH v9,0/7] Add LVTS thermal architecture

From: Balsam CHIHI <bchihi@...libre.com>

Move thermal files related to MediaTek to the mediatek folder.
Introduce the new thermal architecture LVTS (Low Voltage Thermal Sensor) driver
to report the highest temperature in the SoC and record the highest temperature sensor,
each sensor as a thermal zone.
The LVTS body is divided into two parts, the LVTS controller and the LVTS device,
the LVTS controller can connect up to 4 LVTS devices, and each LVTS device
can connect up to 7 TSMCUs.

The architecture will be first used on mt8192 and mt8195.

Changelog:
Changes in 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

Changes in 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

Changes in 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:
          - https://patchwork.kernel.org/project/linux-mediatek/list/?series=637849
          - https://patchwork.kernel.org/project/linux-pm/list/?series=639386

Changes in 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

Changes in v5 :
        - Use 'git mv' for the relocated file.

Changes in v4 :
        - Rebase to kernel-v5.13-rc1
        - Resend

Changes in v3 :
        - change the expression in the lvts_temp_to_raw to dev_s64.

Changes in 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.

Alexandre Bailon (2):
  dt-bindings: thermal: Add dt-binding document for LVTS thermal
    controllers
  arm64: dts: mt8195: Add efuse node to mt8195

Balsam CHIHI (1):
  arm64: dts: mt8192: Add thermal zones and thermal nodes

Michael Kao (3):
  thermal: mediatek: Relocate driver to mediatek folder
  thermal: mediatek: Add LVTS driver for mt8192 thermal zones
  thermal: mediatek: Add LVTS driver settings for mt8195 thermal zones

Tinghan Shen (1):
  arm64: dts: mt8195: Add thermal zones and thermal nodes

 .../thermal/mediatek,lvts-thermal.yaml        | 152 ++++
 arch/arm64/boot/dts/mediatek/mt8192.dtsi      | 111 +++
 arch/arm64/boot/dts/mediatek/mt8195.dtsi      | 123 +++
 drivers/thermal/Kconfig                       |  14 +-
 drivers/thermal/Makefile                      |   2 +-
 drivers/thermal/mediatek/Kconfig              |  43 +
 drivers/thermal/mediatek/Makefile             |   3 +
 .../auxadc_thermal.c}                         |   2 +-
 drivers/thermal/mediatek/lvts_thermal.c       | 861 ++++++++++++++++++
 drivers/thermal/mediatek/lvts_thermal.h       | 386 ++++++++
 drivers/thermal/mediatek/lvts_v4.c            | 479 ++++++++++
 11 files changed, 2164 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 drivers/thermal/mediatek/lvts_thermal.h
 create mode 100644 drivers/thermal/mediatek/lvts_v4.c

-- 
2.34.1