Re: [PATCH v3 4/7] usb: typec: tcpci_rt1711h: Add initial phy setting

Guenter Roeck
2022-08-02T08:58:58Z

On Tue, Aug 02, 2022 at 11:19:15AM +0300, Heikki Krogerus wrote:
> Hi Gene,
>
> On Mon, Aug 01, 2022 at 06:14:44PM +0800, Gene Chen wrote:
> > From: Gene Chen <gene_chen@richtek.com>
> >
> > Add initial phy setting about phy dicard retry,
> > rx filter deglitech time and BMC-encoded wait time
>
> I'm sorry, but what does "deglitech" mean? Is it just a typo?
>

deglitch ?

> > Signed-off-by: Gene Chen <gene_chen@richtek.com>
> > Reviewed-by: Guenter Roeck <linux@roeck-us.net>
> > ---
> > drivers/usb/typec/tcpm/tcpci_rt1711h.c | 15 ++++++++++++++-
> > 1 file changed, 14 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/usb/typec/tcpm/tcpci_rt1711h.c b/drivers/usb/typec/tcpm/tcpci_rt1711h.c
> > index df7bfe299987..33d8ea95b7c1 100644
> > --- a/drivers/usb/typec/tcpm/tcpci_rt1711h.c
> > +++ b/drivers/usb/typec/tcpm/tcpci_rt1711h.c
> > @@ -20,6 +20,9 @@
> > #define RT1711H_VID 0x29CF
> > #define RT1711H_PID 0x1711
> >
> > +#define RT1711H_PHYCTRL1 0x80
> > +#define RT1711H_PHYCTRL2 0x81
> > +
> > #define RT1711H_RTCTRL8 0x9B
> >
> > /* Autoidle timeout = (tout * 2 + 1) * 6.4ms */
> > @@ -107,8 +110,18 @@ static int rt1711h_init(struct tcpci *tcpci, struct tcpci_data *tdata)
> > return ret;
> >
> > /* dcSRC.DRP : 33% */
> > - return rt1711h_write16(chip, RT1711H_RTCTRL16, 330);
> > + ret = rt1711h_write16(chip, RT1711H_RTCTRL16, 330);
> > + if (ret < 0)
> > + return ret;
> > +
> > + /* Enable phy discard retry, retry count 7, rx filter deglitech 100 us */
> > + ret = rt1711h_write8(chip, RT1711H_PHYCTRL1, 0xF1);
> > + if (ret < 0)
> > + return ret;
> >
> > + /* Decrease wait time of BMC-encoded 1 bit from 2.67us to 2.55us */
> > + /* wait time : (val * .4167) us */
> > + return rt1711h_write8(chip, RT1711H_PHYCTRL2, 62);
> > }
> >
> > static int rt1711h_set_vbus(struct tcpci *tcpci, struct tcpci_data *tdata,
> > --
> > 2.25.1
>
> thanks,
>
> --
> heikki