linux-kernel - Re: [PATCH 0/3] Apple Silicon SMC RTC driver

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Message-ID: <CAEg-Je84XxLWH7vznQmPRfjf6GxWOu75ZetwN7AdseAwfMLLrQ@mail.gmail.com>
Date: Thu, 14 Aug 2025 06:06:35 -0700
From: Neal Gompa <neal@...pa.dev>
To: Sven Peter <sven@...nel.org>
Cc: Janne Grunau <j@...nau.net>, Alyssa Rosenzweig <alyssa@...enzweig.io>, Lee Jones <lee@...nel.org>, 
	Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Alexandre Belloni <alexandre.belloni@...tlin.com>, asahi@...ts.linux.dev, 
	linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-rtc@...r.kernel.org, 
	Hector Martin <marcan@...can.st>
Subject: Re: [PATCH 0/3] Apple Silicon SMC RTC driver

On Tue, Aug 12, 2025 at 11:25 AM Sven Peter <sven@...nel.org> wrote:
>
> Hi,
>
> Now that the core mfd device has been upstream I've prepared one of the
> child drivers that is still missing: RTC support.
> This driver is required to read and set the hardware clock and requires
> a reference to an additional NVMEM cell to store the offset and thus
> requires a device tree node.
>
> The series applies cleanly to 6.17-rc1 but is based on a tree with three
> additional commits to add the SMC nodes to the DTS which didn't make it
> into 6.17. You can just ignore that and pretend this is based on
> 6.17-rc1 since I'll take the dts update through my tree anyway.
>
> Next to this SMC child driver we're still working on an input/misc HID
> driver for the powerbutton, a hwmon driver for the various sensors and a
> power-supply driver to manage the batteries.
>
> Best,
>
> Sven
>
> Signed-off-by: Sven Peter <sven@...nel.org>
> ---
> Hector Martin (1):
>       rtc: Add new rtc-macsmc driver for Apple Silicon Macs
>
> Sven Peter (2):
>       dt-bindings: rtc: Add Apple SMC RTC
>       arm64: dts: apple: t8103,t600x,t8112: Add SMC RTC node
>
>  .../devicetree/bindings/mfd/apple,smc.yaml         |   9 ++
>  .../devicetree/bindings/rtc/apple,smc-rtc.yaml     |  35 +++++
>  MAINTAINERS                                        |   2 +
>  arch/arm64/boot/dts/apple/t600x-die0.dtsi          |   6 +
>  arch/arm64/boot/dts/apple/t8103.dtsi               |   6 +
>  arch/arm64/boot/dts/apple/t8112.dtsi               |   6 +
>  drivers/mfd/macsmc.c                               |   1 +
>  drivers/rtc/Kconfig                                |  11 ++
>  drivers/rtc/Makefile                               |   1 +
>  drivers/rtc/rtc-macsmc.c                           | 141 +++++++++++++++++++++
>  10 files changed, 218 insertions(+)
> ---
> base-commit: 772c260c9c7f916c9a2508839df4f03fc19f3773
> change-id: 20250812-wip-smc-rtc-e856b6f24603
>

Series looks good to me, thanks for submitting them!

Reviewed-by: Neal Gompa <neal@...pa.dev>


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