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. Rob
