linux-kernel - Re: [PATCH v2 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: Windows password security audit tool. GUI, reports in PDF.

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

Message-ID: <20260113122049.GH1902656@google.com>
Date: Tue, 13 Jan 2026 12:20:49 +0000
From: Lee Jones <lee@...nel.org>
To: michael.reeves077@...il.com
Cc: Sebastian Reichel <sre@...nel.org>, Sven Peter <sven@...nel.org>,
	Janne Grunau <j@...nau.net>, Neal Gompa <neal@...pa.dev>,
	linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
	asahi@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
	Hector Martin <marcan@...can.st>
Subject: Re: [PATCH v2 0/2] Add Apple Silicon SMC power driver

On Fri, 09 Jan 2026, Michael Reeves via B4 Relay wrote:

> 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>
> ---
> Changes in v2:
> - Added Reviewed-by: Neal Gompa <neal@...pa.dev> to all patches.
> - Fixed Makefile alignment by using tabs for the macsmc-power entry.
> - Upgraded physical battery exhaustion log level to EMERG.
> - Downgraded software-triggered orderly poweroff log level to CRIT.
> - Added check for CHIS key to skip AC registration on desktop models.
> - Link to v1: https://lore.kernel.org/r/20260105-b4-macsmc-power-v1-0-62954c42a555@gmail.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 | 883 ++++++++++++++++++++++++++++++++++++
>  5 files changed, 897 insertions(+)

Let me know when the Power driver has been merged and I'll take the MFD part.

-- 
Lee Jones [李琼斯]