[Linux-stm32] [PATCH 0/7] arm64: dts: st: add STM32MP2 power domains

[Patrick Delaunay]

Hello,

This series adds support for the D1 power domain used by the STM32MP2
families.

The new power-domain driver uses runtime PM and the clock framework to
keep the Cortex-A35 cluster in Run1 for devices that require it, while
S2Idle wake-up is handled through EXTI1 and retention PSCI power domain
(RET_PD).

The power sub-domain D1 without GENPD_FLAG_ACTIVE_WAKEUP is required
because PSCI domains manage the wake-up path since the commit
bfd5859709ee ("cpuidle: psci: Activate GENPD_FLAG_ACTIVE_WAKEUP with
OSI").

This patch is a preliminary step to support PSCI OSI in STM32MP2
platform and the same power domain will be used also in STM32MP1
series.

The first 3 patches introduce the new power domain drivers.

The next patches add this power domain in device tree for each STM32MP2
SoCs: STM32MP25, STM32MP23 and STM32MP21.

Regards,
Patrick


Patrick Delaunay (7):
  dt-bindings: power: st: add STM32MP PM domain binding
  pmdomain: st: add STM32MP power domain
  MAINTAINERS: add entry for ST STM32 power domain driver
  arm64: dts: st: add D1 domain for STM32MP25 family
  arm64: dts: st: fix power-domain labels DT coding style in STM32MP25
  arm64: dts: st: add D1 domain for STM32MP23 family
  arm64: dts: st: add power domains for STM32MP21 family

 .../bindings/power/st,stm32mp-pm-domain.yaml  |  46 +++++++
 MAINTAINERS                                   |   7 +
 arch/arm64/boot/dts/st/stm32mp211.dtsi        |  37 +++++
 arch/arm64/boot/dts/st/stm32mp231.dtsi        |  54 +++++---
 arch/arm64/boot/dts/st/stm32mp233.dtsi        |   1 +
 arch/arm64/boot/dts/st/stm32mp235.dtsi        |   2 +-
 arch/arm64/boot/dts/st/stm32mp251.dtsi        | 126 ++++++++++-------
 arch/arm64/boot/dts/st/stm32mp253.dtsi        |   9 +-
 arch/arm64/boot/dts/st/stm32mp255.dtsi        |   2 +-
 drivers/pmdomain/st/Kconfig                   |  14 ++
 drivers/pmdomain/st/Makefile                  |   1 +
 drivers/pmdomain/st/stm32mp-pm-domain.c       | 128 ++++++++++++++++++
 12 files changed, 353 insertions(+), 74 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/power/st,stm32mp-pm-domain.yaml
 create mode 100644 drivers/pmdomain/st/stm32mp-pm-domain.c

---
base-commit: 7b3f3e772d5107c3a59b9f2278e9aeab227b26db
branch: master

-- 
2.43.0