[U-Boot] [PATCH 3/4] ZOOM2 Add power reset button

Menon, Nishanth
2009-06-10T14:43:13Z

> -----Original Message-----
> From: Peter Tyser [mailto:ptyser at xes-inc.com]
> Sent: Wednesday, June 10, 2009 9:27 AM
> > diff --git a/drivers/i2c/twl4030_i2c.c b/drivers/i2c/twl4030_i2c.c
> > index 774f813..549f974 100644
> > --- a/drivers/i2c/twl4030_i2c.c
> > +++ b/drivers/i2c/twl4030_i2c.c
> > @@ -35,3 +35,25 @@ static inline int twl4030_i2c_read_u8(u8 chip_no, u8
> *val, u8 reg)
> > return i2c_read(chip_no, reg, 1, val, 1);
> > }
> >
> > +/*
> > + * Power Reset
> > + */
> > +void twl4030_power_reset_init(void)
> > +{
> > +#ifdef CONFIG_OMAP3_ZOOM2
> > + u8 val = 0;
> > + if (twl4030_i2c_read_u8(TWL4030_CHIP_PM_MASTER, &val,
> > + TWL4030_PM_MASTER_P1_SW_EVENTS)) {
> > + printf("Error:TWL4030: failed to read the power register\n");
> > + printf("Could not initialize hardware reset\n");
> > + } else {
> > + val |= TWL4030_PM_MASTER_SW_EVENTS_STOPON_PWRON;
> > + if (twl4030_i2c_write_u8(TWL4030_CHIP_PM_MASTER, val,
> > + TWL4030_PM_MASTER_P1_SW_EVENTS)) {
> > + printf("Error:TWL4030: failed to write the power
> register\n");
> > + printf("Could not initialize hardware reset\n");
> > + }
> > + }
> > +#endif
> > +}
> > +
>
> All other drivers in drivers/i2c are host adapter drivers. Ie they
> implement i2c_read(), i2c_write(), i2c_probe(), and i2c_init(). The
> twl4030_i2c.c driver doesn't seem to fit this mold. Perhaps it would be
> better placed in drivers/misc or a new drivers/power directory similar
> to Linux?

This function probably belongs to board/omap3/common/power.c -> or even better to the board file itself?
Regards,
Nishanth Menon