On Mon, Aug 16, 2021 at 2:11 PM Rob Herring <robh+dt@xxxxxxxxxx> wrote: > > On Mon, Aug 16, 2021 at 3:43 PM Saravana Kannan <saravanak@xxxxxxxxxx> wrote: > > > > On Sat, Aug 14, 2021 at 8:22 AM Andrew Lunn <andrew@xxxxxxx> wrote: > > > > > > Hi Saravana > > > > > > > Hi Andrew, > > > > > > > > > > > Also there > > > > are so many phy related properties that my head is spinning. Is there a > > > > "phy" property (which is different from "phys") that treated exactly as > > > > "phy-handle"? > > > > > > Sorry, i don't understand your question. > > > > Sorry. I was just saying I understand the "phy-handle" DT property > > (seems specific to ethernet PHY) and "phys" DT property (seems to be > > for generic PHYs -- used mostly by display and USB?). But I noticed > > there's yet another "phy" DT property which I'm not sure I understand. > > It seems to be used by display and ethernet and seems to be a > > deprecated property. If you can explain that DT property in the > > context of networking and how to interpret it as a human, that'd be > > nice. > > For net devices, you can have 2 PHYs. 'phys' is the serdes phy and > 'phy-handle' is the ethernet (typically) phy. On some chips, a serdes > phy can do PCS (ethernet), SATA, PCIe. > > 'phy' is deprecated, so ignore it. The one case for displays I see in > display/exynos/exynos_hdmi.txt should be deprecated as well. > > There's also 'usb-phy' which should be deprecated. Thanks for the explanation Rob. I'll ignore phy and usb-phy unless it becomes an issue for any future changes/improvements. -Saravana -Saravana
