On 23-02-07 15:03:39, Dmitry Baryshkov wrote:
> On Tue, 7 Feb 2023 at 14:25, Abel Vesa <abel.vesa@xxxxxxxxxx> wrote:
> >
> > On 23-02-03 18:51:13, Dmitry Baryshkov wrote:
> > > On 02/02/2023 15:38, Abel Vesa wrote:
> > > > PM8550B contains a eUSB2 repeater used for making the eUSB2 from
> > > > SM8550 USB 2.0 compliant. This can be modelled SW-wise as a Phy.
> > > > So add a new phy driver for it.
> > > >
> > > > Signed-off-by: Abel Vesa <abel.vesa@xxxxxxxxxx>
> > > > ---
> > > > drivers/phy/qualcomm/Kconfig | 9 +
> > > > drivers/phy/qualcomm/Makefile | 1 +
> > > > .../phy/qualcomm/phy-qcom-eusb2-repeater.c | 278 ++++++++++++++++++
> > > > 3 files changed, 288 insertions(+)
> > > > create mode 100644 drivers/phy/qualcomm/phy-qcom-eusb2-repeater.c
> > > >
> >
> > [ ... ]
> >
> > > > +
> > > > +static int eusb2_repeater_init(struct phy *phy)
> > > > +{
> > > > + struct eusb2_repeater *rptr = phy_get_drvdata(phy);
> > > > + const struct eusb2_repeater_init_tbl *init_tbl = rptr->cfg->init_tbl;
> > > > + int num = rptr->cfg->init_tbl_num;
> > > > + int ret = 0;
> > > > + u32 val;
> > > > + int i;
> > > > +
> > > > + ret = regulator_bulk_enable(rptr->cfg->num_vregs, rptr->vregs);
> > > > + if (ret)
> > > > + return ret;
> > > > +
> > > > + regmap_update_bits(rptr->regmap, rptr->base + EUSB2_EN_CTL1,
> > > > + EUSB2_RPTR_EN, EUSB2_RPTR_EN);
> > > > +
> > > > + for (i = 0; i < num; i++)
> > > > + regmap_update_bits(rptr->regmap,
> > > > + rptr->base + init_tbl[i].offset,
> > > > + init_tbl[i].val, init_tbl[i].val);
> > >
> > > I'd move this to a separate function. Then you can use it in the set_mode()
> > > too.
> > >
> >
> > I don't think this is necessary in set_mode.
>
> It's not necessary. However as set_mode() is also a sequence of simple
> register updates, it might be easy to have everything as an
> offset-mask-value table.
Yeah, but then you would reinit the repeater on set_mode, which should
not be done.
>
> >
> > > > +
> > > > + ret = regmap_read_poll_timeout(rptr->regmap,
> > > > + rptr->base + EUSB2_RPTR_STATUS, val,
> > > > + val & RPTR_OK, 10, 5);
> > > > + if (ret)
> > > > + dev_err(rptr->dev, "initialization timed-out\n");
> > > > +
> > > > + return ret;
> > > > +}
> > > > +
> >
> > [ ... ]
>
>
>
> --
> With best wishes
> Dmitry
