linux-kernel - [PATCH 0/2] Add Apple Silicon SMC power driver

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20260105-b4-macsmc-power-v1-0-62954c42a555@gmail.com>
Date: Mon, 05 Jan 2026 23:56:35 +1100
From: Michael Reeves via B4 Relay <devnull+michael.reeves077.gmail.com@...nel.org>
To: Sebastian Reichel <sre@...nel.org>, Sven Peter <sven@...nel.org>, 
 Janne Grunau <j@...nau.net>, Neal Gompa <neal@...pa.dev>, 
 Lee Jones <lee@...nel.org>
Cc: linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org, 
 asahi@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org, 
 Michael Reeves <michael.reeves077@...il.com>, 
 Hector Martin <marcan@...can.st>
Subject: [PATCH 0/2] Add Apple Silicon SMC power driver

This series adds a power supply driver for the Apple SMC found on
Apple Silicon devices. This allows the kernel to report AC status,
battery charging status, and power metrics, and modify the charging
behaviour.

The first patch adds the driver itself, and the second patch wires it
up to the MFD core.

The driver is based on an original out-of-tree implementation by
Hector Martin. It has been refactored for upstream inclusion, 
including support for newer SMC firmwares, devices without batteries,
dynamic property detection and improved state management.

Tested on: Apple M3 (MacBook Air, J613)

Signed-off-by: Michael Reeves <michael.reeves077@...il.com>
---
Michael Reeves (2):
      power: supply: Add macsmc-power driver for Apple Silicon
      mfd: macsmc: Wire up Apple SMC power driver

 MAINTAINERS                         |   1 +
 drivers/mfd/macsmc.c                |   1 +
 drivers/power/supply/Kconfig        |  11 +
 drivers/power/supply/Makefile       |   1 +
 drivers/power/supply/macsmc-power.c | 872 ++++++++++++++++++++++++++++++++++++
 5 files changed, 886 insertions(+)
---
base-commit: cc3aa43b44bdb43dfbac0fcb51c56594a11338a8
change-id: 20260105-b4-macsmc-power-d017cc7f53ac

Best regards,
-- 
Michael Reeves <michael.reeves077@...il.com>