linux-kernel - Re: [RFC PATCH v4 2/5] mfd: add driver for Marvell 88PM886 PMIC

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Message-ID: <45079e37-dde9-4310-a112-7af49f35ac77@sirena.org.uk>
Date: Thu, 21 Mar 2024 17:17:40 +0000
From: Mark Brown <broonie@...nel.org>
To: Karel Balej <balejk@...fyz.cz>
Cc: Lee Jones <lee@...nel.org>, Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Liam Girdwood <lgirdwood@...il.com>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-input@...r.kernel.org,
	Duje Mihanović <duje.mihanovic@...le.hr>,
	~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org
Subject: Re: [RFC PATCH v4 2/5] mfd: add driver for Marvell 88PM886 PMIC

On Thu, Mar 21, 2024 at 06:08:16PM +0100, Karel Balej wrote:
> Mark Brown, 2024-03-21T16:58:44+00:00:

> > > > > > > +static const struct regmap_config pm886_i2c_regmap = {
> > > > > > > +	.reg_bits = 8,
> > > > > > > +	.val_bits = 8,
> > > > > > > +	.max_register = PM886_REGMAP_CONF_MAX_REG,
> > > > > > > +};

..

> > You shouldn't be creating two regmaps for the same set of registers,
> > that just opens the potential for confusion.

> Just the regmap config is the same. Otherwise, each regmap lives at a
> different I2C address.

Do they both genuinely have the same maximum register?

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