This series introduces the generic thermal MMIO driver that will use memory mapped reads to get the temperature. Any HW/System that allows temperature reading by a single memory-mapped reading, be it register or shared memory, is a potential candidate to work with this driver. This driver is most suitable for cases such as the following: - The entire thermal HW setup is done by another SW entity (e.g. bootloader) and all that is left is to read the current temperature from a register. - The thermal HW setup is done via an external CPU (e.g. micro-controller) and that CPU has is using shared memory that can be memory-mapped to this driver. - The thermal HW setup and reading is done via CPLD, which exports the current temperature to the system via a register. - The thermal HW is working out-of-the-box and only reports temperature via a single register access. Talel Shenhar (2): dt-bindings: thermal: thermal_mmio: Add binding documentation thermal: Introduce thermal MMIO .../devicetree/bindings/thermal/thermal_mmio.txt | 173 +++++++++++++++++ drivers/thermal/Kconfig | 11 ++ drivers/thermal/Makefile | 3 + drivers/thermal/thermal_mmio.c | 214 +++++++++++++++++++++ 4 files changed, 401 insertions(+) create mode 100644 Documentation/devicetree/bindings/thermal/thermal_mmio.txt create mode 100644 drivers/thermal/thermal_mmio.c -- 2.7.4
