[PATCH v3 0/3] soc: apple: Add "PMGR misc" power controls driver

[Sasha Finkelstein]

Certain Apple SoCs have additional power state controls that are using
a separate "misc" mmio interface. Currently this includes the fabric
and memory controllers on pro/max/ultra SoCs.

This series adds a driver to put those in a low power state when the
machine enters sleep. The power savings are SoC-dependent and are
around 1W.

Signed-off-by: Sasha Finkelstein <k at chaosmail.tech>
---
Changes in v3:
- Remove ability to probe only one control, it is not used anyway
- Allow building as module
- Style fixes
- Link to v2: https://patch.msgid.link/20260703-pmgr-misc-v2-0-4b26ba10c5a4@chaosmail.tech

Changes in v2:
- Error handling fixes
- Reword binding description
- Link to v1: https://patch.msgid.link/20260702-pmgr-misc-v1-0-4f075a3a95c1@chaosmail.tech

---
Hector Martin (1):
      soc: apple: Add driver for Apple PMGR misc controls

Sasha Finkelstein (2):
      dt-bindings: soc: apple: Add Apple PMGR misc controls
      arm64: dts: apple: Add pmgr-misc nodes to t60xx

 Documentation/devicetree/bindings/soc/apple/apple,t6000-pmgr-misc.yaml |  45 +++++++++++++++++++++++++++
 MAINTAINERS                                                            |   1 +
 arch/arm64/boot/dts/apple/t600x-die0.dtsi                              |   7 +++++
 arch/arm64/boot/dts/apple/t602x-die0.dtsi                              |   7 +++++
 drivers/soc/apple/Kconfig                                              |  10 ++++++
 drivers/soc/apple/Makefile                                             |   2 ++
 drivers/soc/apple/apple-pmgr-misc.c                                    | 181 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 7 files changed, 253 insertions(+)
---
base-commit: e5d9690657844a2645a518cdf838206f6daf513e
change-id: 20260702-pmgr-misc-ae1cbd5bc2c7

Best regards,
--  
Sasha Finkelstein <k at chaosmail.tech>