This series adds support for the temperature sensor unit (TSU) found on the
Renesas RZ/G3E SoC.
The series consists of 5 patches (one of which is not related to the thermal
framework) that progressively add TSU support as follows:
- patch 1/6: adds syscon/regmap support for accessing system controller
registers, enabling access to TSU calibration values
- patch 2-6/6: adds dt-bindings, actual driver, DT node, and config symbol.
Patch 1/6 has been duplicated at [1] in USB series. This series addresses comments
got from there.
Changes:
v1 -> v2
* Fix yaml warnings from dt-binding
* Update IRQ names to reflect TSU expectations
v2 -> v3
* Remove useless 'renesas,tsu-operating-mode' property
v3 -> v4
* Improve commit messages
v4 -> v5
* Remove useless curly braces on single line-protected scoped guards
v5 -> v6
* Minor typo fix
* Constify regmap config in patch 1/5
v6 -> v7
* Update DTS trim priperty name and specifier, updading the documentation
accordingly
* Refactor main driver: remove spinlock usage, using polling timeout as computed
from datasheet. Also use polling for get_temp() while using IRQ for trip-point
cross detection, and finally add both runtime and sleep PM support.
* Add new patch to update sys #address-cells as trim specifier now requires an
offet from sys base
Regards,
[1] https://lore.kernel.org/all/20250808061806.2729274-2-claudiu.beznea.uj@xxxxxxxxxxxxxx/
John Madieu (6):
soc: renesas: rz-sysc: Add syscon/regmap support
dt-bindings: thermal: r9a09g047-tsu: Document the TSU unit
thermal: renesas: rzg3e: Add thermal driver for the Renesas RZ/G3E SoC
arm64: dts: renesas: r9a09g047: Add #address-cells property in sys
node
arm64: dts: renesas: r9a09g047: Add TSU node
arm64: defconfig: Enable the Renesas RZ/G3E thermal driver
.../thermal/renesas,r9a09g047-tsu.yaml | 87 +++
MAINTAINERS | 7 +
arch/arm64/boot/dts/renesas/r9a09g047.dtsi | 49 ++
arch/arm64/configs/defconfig | 1 +
drivers/soc/renesas/Kconfig | 1 +
drivers/soc/renesas/r9a08g045-sysc.c | 1 +
drivers/soc/renesas/r9a09g047-sys.c | 1 +
drivers/soc/renesas/r9a09g057-sys.c | 1 +
drivers/soc/renesas/rz-sysc.c | 28 +-
drivers/soc/renesas/rz-sysc.h | 2 +
drivers/thermal/renesas/Kconfig | 7 +
drivers/thermal/renesas/Makefile | 1 +
drivers/thermal/renesas/rzg3e_thermal.c | 575 ++++++++++++++++++
13 files changed, 760 insertions(+), 1 deletion(-)
create mode 100644 Documentation/devicetree/bindings/thermal/renesas,r9a09g047-tsu.yaml
create mode 100644 drivers/thermal/renesas/rzg3e_thermal.c
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2.25.1
