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.
Of course, the PCIe host on Tegra isn't yet a platform device, so would
have to be converted.
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