[PATCH v3 0/3] soc: apple: Add "PMGR misc" power controls driver
From: Sasha Finkelstein <k@chaosmail.tech>
Date: 2026-07-05 08:16:45
Also in:
asahi, linux-devicetree, lkml
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@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 [off-list ref]