linux-kernel - Re: [PATCH v2] mfd: ntxec: Support for EC in Tolino Shine 2 HD

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Date:   Sat, 13 Mar 2021 16:07:57 +0100
From:   Andreas Kemnade <andreas@...nade.info>
To:     Jonathan Neuschäfer <j.neuschaefer@....net>
Cc:     Lee Jones <lee.jones@...aro.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] mfd: ntxec: Support for EC in Tolino Shine 2 HD

On Sat, 13 Mar 2021 12:17:34 +0100
Jonathan Neuschäfer <j.neuschaefer@....net> wrote:

> On Wed, Mar 10, 2021 at 09:55:45AM +0000, Lee Jones wrote:
> > On Mon, 08 Mar 2021, Andreas Kemnade wrote:  
> [...]
> > > -static const struct mfd_cell ntxec_subdevices[] = {
> > > +static const struct mfd_cell ntxec_subdev[] = {
> > >  	{ .name = "ntxec-rtc" },
> > >  	{ .name = "ntxec-pwm" },
> > >  };
> > >  
> > > +static const struct mfd_cell ntxec_subdev_pwm[] = {
> > > +	{ .name = "ntxec-pwm" },
> > > +};  
> > 
> > To put across what you're trying to achieve, maybe call this:
> > 
> >   ntxec_subdev_no_rtc[]
> > 
> > Then if other devices are added, the semantics/intent stays the same
> > and it won't have to be renamed.  
> 
> Andreas, what is the full amount of functionality this version of the EC
> can ever provide?
> 
> If it's only PWM, I think ntxec_subdev_pwm fits well.
> 
I think it is only PWM. At least I could not see any other I2C access.

> [ The next subdevice that I can foresee is battery monitoring. ]
> 
That is done via the RC5T619 on that device.

Regards,
Andreas