[PATCH v3 0/3] Add SiFive power provider driver

[Nick Hu]

This patch introduces the SiFive power provider driver, which sets up a
generic power domain (genpd) provider to coordinate with the RISC-V SBI
cpuidle driver.

To enable this coordination, several functions from the cpuidle-riscv-sbi
driver are exposed for use by the external power provider. This allows
coordination between power domain management and CPU idle states on
SiFive platforms.

Changes in v3:
- Update the explanation for the absence of the SoC-specific compatible
  string.
- Drop the smc3/tmc3/cmc3 bindings.
- Separate the genpd init and the idle driver init. The genpd remains
  functional even when the idle state is absent.
- Address the warning from the kernel test robot

Changes in v2:
- Add the driver for SiFive TMC, CMC and SMC
- Drop the `sifive,feature-level` property

Nick Hu (3):
  dt-bindings: power: Add SiFive Domain Management controllers
  cpuidle: riscv-sbi: Work with the external pmdomain driver
  cpuidle: Add SiFive power provider

 .../devicetree/bindings/power/sifive,tmc.yaml |  58 ++++++++++
 drivers/cpuidle/Kconfig.riscv                 |  11 ++
 drivers/cpuidle/Makefile                      |   1 +
 drivers/cpuidle/cpuidle-riscv-sbi.c           |  46 ++++----
 drivers/cpuidle/cpuidle-riscv-sbi.h           |  20 ++++
 drivers/cpuidle/cpuidle-sifive-dmc-pd.c       | 102 ++++++++++++++++++
 6 files changed, 220 insertions(+), 18 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/power/sifive,tmc.yaml
 create mode 100644 drivers/cpuidle/cpuidle-riscv-sbi.h
 create mode 100644 drivers/cpuidle/cpuidle-sifive-dmc-pd.c

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2.17.1