* Stephen Warren wrote:
> Thierry Reding wrote at Monday, March 05, 2012 8:22 AM:
> > I'm working on getting DT support for PCIe on Tegra working. The Tegra PCIe
> > controller needs a specific voltage supplied by a regulator on the board
> > that
> > I use (Harmony-compatible), so what I did was add DT support for the PMU
> > (tps6586x) to provide the corresponding regulator:
> ...
> > Within the device node of the PCIe controller, I reference the ldo0
> > regulator
> > like so:
> >
> > pcie@80000000 {
> > pex-clk-supply = <&ldo0_reg>;
> > };
> >
> > This all works well, except there seems to be no API to obtain a regulator
> > from the DT phandle.
>
> regulator_get(pcie_dev, "pex-clk") should work.Ah, I see. That would call regulator_dev_lookup(), which would call of_get_regulator() which will lookup the pex-clk-supply property. I will give that a shot. > Of course, the PCIe host on Tegra isn't yet a platform device, so would > have to be converted. I've already converted that. I was going to send the patch when I've tested that this works in a DT setup as well. So far I have only tested it on non- DT Harmony. Thierry
pgp4tcaKDpxpe.pgp
Description: PGP signature
_______________________________________________ devicetree-discuss mailing list [email protected] https://lists.ozlabs.org/listinfo/devicetree-discuss
