RE: [PATCH v3 1/2] phy: keystone: serdes driver for gbe 10gbe and pcie

[Kwok, WingMan]

> -----Original Message-----
> From: Rob Herring [mailto:robh+dt@xxxxxxxxxx]
> Sent: Wednesday, October 21, 2015 6:55 PM
> To: Kwok, WingMan
> Cc: Pawel Moll; Mark Rutland; Ian Campbell; Kumar Gala; KISHON VIJAY ABRAHAM;
> Quadros, Roger; Karicheri, Muralidharan; Bjorn Helgaas; Santosh Shilimkar;
> Russell King - ARM Linux; devicetree@xxxxxxxxxxxxxxx; linux-
> kernel@xxxxxxxxxxxxxxx; linux-pci@xxxxxxxxxxxxxxx; linux-arm-
> kernel@xxxxxxxxxxxxxxxxxxx
> Subject: Re: [PATCH v3 1/2] phy: keystone: serdes driver for gbe 10gbe and
> pcie
> 
> On Wed, Oct 21, 2015 at 7:56 AM, WingMan Kwok <w-kwok2@xxxxxx> wrote:
> > On TI's Keystone platforms, several peripherals such as the
> > gbe ethernet switch, 10gbe ethernet switch and PCIe controller
> > require the use of a SerDes for converting SoC parallel data into
> > serialized data that can be output over a high-speed electrical
> > interface, and also converting high-speed serial input data
> > into parallel data that can be processed by the SoC.  The
> > SerDeses used by those peripherals, though they may be different,
> > are largely similar in functionality and setup.
> >
> > This patch provides a SerDes phy driver implementation that can be
> > used by the above mentioned peripheral drivers to configure their
> > respective SerDeses.
> >
> > Signed-off-by: WingMan Kwok <w-kwok2@xxxxxx>
> > ---
> >  Documentation/devicetree/bindings/phy/ti-phy.txt |  239 +++
> 
> For the binding:
> 
> Acked-by: Rob Herring <robh@xxxxxxxxxx>
> 
> 
> One other comment:
> 
> > +       if (of_device_is_compatible(np, "ti,keystone-serdes-gbe")) {
> > +               sc->phy_type = KSERDES_PHY_SGMII;
> > +       } else if (of_device_is_compatible(np, "ti,keystone-serdes-xgbe"))
> {
> > +               sc->phy_type = KSERDES_PHY_XGE;
> > +       } else if (of_device_is_compatible(np, "ti,keystone-serdes-pcie"))
> {
> > +               sc->phy_type = KSERDES_PHY_PCIE;
> > +       } else {
> > +               dev_err(dev, "unknown phy type\n");
> > +               return -EINVAL;
> > +       }
> 
> Use the match data to set the type:
> 

will do.

> > +static const struct of_device_id kserdes_of_match[] = {
> > +       { .compatible = "ti,keystone-serdes-gbe" },
> > +       { .compatible = "ti,keystone-serdes-pcie" },
> > +       { .compatible = "ti,keystone-serdes-xgbe" },
> > +       { },
> > +};
> > +MODULE_DEVICE_TABLE(of, kserdes_of_match);
> 
> Rob

Thanks,
WingMan