Re: [PATCH 2/6] mfd: spacemit: add support for SpacemiT PMICs

From: Lee Jones <lee@kernel.org>
To: Alex Elder <elder@riscstar.com>
Cc: lgirdwood@gmail.com, broonie@kernel.org, robh@kernel.org,
	krzk+dt@kernel.org, conor+dt@kernel.org, dlan@gentoo.org,
	paul.walmsley@sifive.com, palmer@dabbelt.com,
	aou@eecs.berkeley.edu, alex@ghiti.fr, troymitchell988@gmail.com,
	guodong@riscstar.com, devicetree@vger.kernel.org,
	linux-riscv@lists.infradead.org, spacemit@lists.linux.dev,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/6] mfd: spacemit: add support for SpacemiT PMICs
Date: Thu, 19 Jun 2025 15:41:47 +0100	[thread overview]
Message-ID: <20250619144147.GH795775@google.com> (raw)
In-Reply-To: <20250619144023.GG795775@google.com>

On Thu, 19 Jun 2025, Lee Jones wrote:

> On Fri, 13 Jun 2025, Alex Elder wrote:
> 
> > Add support for SpacemiT PMICs. Initially only the P1 PMIC is supported
> > but the driver is structured to allow support for others to be added.
> > 
> > The P1 PMIC is controlled by I2C, and is normally implemented with the
> > SpacemiT K1 SoC.  This PMIC provides six buck converters and 12 LDO
> 
> six or 12.  Please pick a format and remain consistent.
> 
> > regulators.  It also implements a switch, watchdog timer, real-time clock,
> > and more, but initially we will only support its regulators.
> 
> You have to provide support for more than one device for this to be
> accepted into MFD.
> 
> > Signed-off-by: Alex Elder <elder@riscstar.com>
> > ---
> >  drivers/mfd/Kconfig         | 11 +++++
> >  drivers/mfd/Makefile        |  1 +
> >  drivers/mfd/spacemit-pmic.c | 91 +++++++++++++++++++++++++++++++++++++
> >  3 files changed, 103 insertions(+)
> >  create mode 100644 drivers/mfd/spacemit-pmic.c

Right now, it looks like all you need is:

drivers/mfd/simple-mfd-i2c.c

-- 
Lee Jones [李琼斯]

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