[PATCH v6 2/8] mfd: simple-mfd-i2c: specify max_register

Lee Jones lee at kernel.org
Wed Jul 2 09:26:20 PDT 2025


On Wed, 02 Jul 2025, Alex Elder wrote:

> On 7/2/25 10:26 AM, Lee Jones wrote:
> > On Fri, 27 Jun 2025, Alex Elder wrote:
> > 
> > > All devices supported by simple MFD use the same 8-bit register
> > > 8-bit value regmap configuration.  There is an option available
> > > for a device to specify a custome configuration, but no existing
> > > device uses it.
> > > 
> > > Lee Jones suggested modifying the simple MFD implementation to
> > > remove the generality of the full regmap configuration and add a
> > > max_register value to the simple_mfd_data structure.  This can
> > > be used in the regmap configuration to limit the valid register
> > > addresses if desired.  It's simpler, and covers all existing and
> > > anticipated device types.
> > 
> > Woah, not like this.  I wanted to make the framework _more_ flexible.
> 
> OK, sorry I misunderstood.  I'll send another new version today
> that does what you suggest.

No worries.  Perhaps I wasn't clear enough.

-- 
Lee Jones [李琼斯]



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