On Thu, 2016-02-18 at 11:00 +0800, Pi-Cheng Chen wrote:
> > > + vboot = regulator_get_voltage(svs->reg) / 1000;
> > > + if (mvolt_to_config(vboot) !=
> > > + mvolt_to_config(svs_bank_cfgs[i].vboot)) {
> > > + dev_err(svs->dev, "Vboot value mismatch!\n");
> > > + ret = -EINVAL;
> > > + break;
> > > + }
> > > +
> > > + ret = regulator_set_mode(svs->reg, REGULATOR_MODE_FAST);
> > > + if (ret) {
> > > + dev_err(svs->dev,
> > > + "Failed to set regulator in PWM mode\n");
> > > + ret = -EINVAL;
> > > + break;
> > > + }
> >
> > Shouldn't this be best effort?
> > If we can't set the regulator to fast mode, can we continue anyway?
> >
>
> AFAIK, we need to set the regulator to fast mode to get stable voltage as
> possible. I am sure about the details.
>
> @Henry,
> Would you please comment it?
Hi,
Yes, as you said, PTPOD need the more precisely voltage as possible when
driver initialize, there has two mode in mt6397: pwm/auto mode, the pwm
mode which can get the more stable Vout than auto mode.
Thanks,
Henry
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