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SubjectRe: [PATCH v3 07/11] power: supply: max77650: add support for battery charger
wt., 12 lut 2019 o 13:07 Pavel Machek <pavel@ucw.cz> napisał(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.

Bart

> > +#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

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