linux-kernel - Re: (subset) [PATCH v5 0/2] driver: reset: spacemit-p1: add driver for poweroff/reboot

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Message-ID: <E205F88FB1EE06C5+aQscI0Uy7pgiMzEt@kernel.org>
Date: Wed, 5 Nov 2025 17:42:59 +0800
From: Troy Mitchell <troy.mitchell@...ux.spacemit.com>
To: Lee Jones <lee@...nel.org>,
	Troy Mitchell <troy.mitchell@...ux.spacemit.com>
Cc: Sebastian Reichel <sebastian.reichel@...labora.com>,
	linux-kernel@...r.kernel.org, Sebastian Reichel <sre@...nel.org>,
	Yixun Lan <dlan@...too.org>, Paul Walmsley <pjw@...nel.org>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>, Alexandre Ghiti <alex@...ti.fr>,
	linux-riscv@...ts.infradead.org, spacemit@...ts.linux.dev,
	Aurelien Jarno <aurelien@...el32.net>, linux-pm@...r.kernel.org
Subject: Re: (subset) [PATCH v5 0/2] driver: reset: spacemit-p1: add driver
 for poweroff/reboot

On Wed, Nov 05, 2025 at 09:34:21AM +0000, Lee Jones wrote:
> On Tue, 04 Nov 2025, Troy Mitchell wrote:
> 
> > On Mon, Nov 03, 2025 at 01:48:33AM +0100, Sebastian Reichel wrote:
> > > 
> > > On Mon, 03 Nov 2025 00:01:58 +0100, Aurelien Jarno wrote:
> > > > This adds poweroff/reboot support for the SpacemiT P1 PMIC chip, which is
> > > > commonly paired with the SpacemiT K1 SoC.
> > > > 
> > > > Note: For reliable operation, this driver depends on a this patch that adds
> > > > atomic transfer support to the SpacemiT I2C controller driver:
> > > >   https://lore.kernel.org/spacemit/20251009-k1-i2c-atomic-v4-1-a89367870286@linux.spacemit.com/
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
dependency is here.
> > > > 
> > > > [...]
> > > 
> > > Applied, thanks!
> > > 
> > > [1/2] driver: reset: spacemit-p1: add driver for poweroff/reboot
> > >       commit: 28124cc0fb8c7dc01a6834d227351e25d9a92c58
> > Should we apply it now? The dependency patch hasn’t been merged yet...
> 
> What is the dependency?
I point it out above.
Without this patch, reboot and shutdown would end up calling the non-atomic i2c_transfer.

                                  - Troy
> 
> -- 
> Lee Jones [李琼斯]
>