[PATCH v2 0/3] soc: apple: Add "PMGR misc" power controls driver
Sasha Finkelstein
k at chaosmail.tech
Fri Jul 3 05:44:10 PDT 2026
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 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 | 179 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
7 files changed, 251 insertions(+)
---
base-commit: e5d9690657844a2645a518cdf838206f6daf513e
change-id: 20260702-pmgr-misc-ae1cbd5bc2c7
Best regards,
--
Sasha Finkelstein <k at chaosmail.tech>
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