Re: [PATCH v3 07/11] power: supply: max77650: add support for battery charger

[Pavel Machek]

On Tue 2019-02-12 14:31:52, Bartosz Golaszewski wrote:
> wt., 12 lut 2019 o 13:07 Pavel Machek <pavel@xxxxxx> napisaÅ(a):
> >
> > Hi!
> >
> > > +#define MAX77650_CHARGER_ENABLED             BIT(0)
> > > +#define MAX77650_CHARGER_DISABLED            0x00
> > > +#define MAX77650_CHARGER_CHG_EN_MASK         BIT(0)
> > > +
> > > +#define MAX77650_CHARGER_CHG_DTLS_MASK               GENMASK(7, 4)
> > > +#define MAX77650_CHARGER_CHG_DTLS_BITS(_reg) \
> > > +             (((_reg) & MAX77650_CHARGER_CHG_DTLS_MASK) >> 4)
> > > +
> > > +#define MAX77650_CHARGER_CHG_OFF             0x00
> > > +#define MAX77650_CHARGER_CHG_PREQ            0x01
> > > +#define MAX77650_CHARGER_CHG_ON_CURR         0x02
> > > +#define MAX77650_CHARGER_CHG_ON_JCURR                0x03
> > > +#define MAX77650_CHARGER_CHG_ON_VOLT         0x04
> > > +#define MAX77650_CHARGER_CHG_ON_JVOLT                0x05
> > > +#define MAX77650_CHARGER_CHG_ON_TOPOFF               0x06
> > > +#define MAX77650_CHARGER_CHG_ON_JTOPOFF              0x07
> > > +#define MAX77650_CHARGER_CHG_DONE            0x08
> > > +#define MAX77650_CHARGER_CHG_JDONE           0x09
> > > +#define MAX77650_CHARGER_CHG_SUSP_PF         0x0a
> > > +#define MAX77650_CHARGER_CHG_SUSP_FCF                0x0b
> > > +#define MAX77650_CHARGER_CHG_SUSP_BTF                0x0c
> >
> > These are really bad define names. We are in charger driver, so
> > MAX77650_CHARGER_ really should be shortened/ommited. OTOH
> > more space should be given to "CHG_SUSP_BTF" as it is impossible to decipher.
> >
> 
> I disagree about the prefix bit. I prefer to use common prefixes for
> all symbols in a driver. I would rather add comments to every
> definition here.

So what about shortened? (And what about UVL/OVL below?)

And... what you prefer is not quite important. It is important that
other people can read your code. And what "PF" is is
important... unlike MAX77650_CHARGER_ which is long but unimportant.



> > > +#define MAX77650_CHARGER_CHGIN_DTLS_MASK     GENMASK(3, 2)
> > > +#define MAX77650_CHARGER_CHGIN_DTLS_BITS(_reg) \
> > > +             (((_reg) & MAX77650_CHARGER_CHGIN_DTLS_MASK) >> 2)
> > > +
> > > +#define MAX77650_CHARGER_CHGIN_UVL           0x00
> > > +#define MAX77650_CHARGER_CHGIN_OVL           0x01
> > > +#define MAX77650_CHARGER_CHGIN_OKAY          0x11
> >
> > UVL -> UNDERVOLTAGE, OVL -> OVERVOLTAGE?
> >
> >
> > --
> > (english) http://www.livejournal.com/~pavelmachek
> > (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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