Commit 980d1f2f authored by Thierry Reding's avatar Thierry Reding Committed by Lorenzo Pieralisi
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dt-bindings: pci: tegra: Remove PLL power supplies 

The XUSB pad controller, which provides access to various USB, PCI and
SATA pads (or PHYs), needs to bring up the PLLs associated with these
pads. In order to properly do so, it needs to control the power supplied
to these PLLs.

Remove the PLL power supplies from the PCIe controller because it does
not need direct access to them. Instead it will only use the configured
pads provided by the XUSB pad controller.

Link: https://lore.kernel.org/r/20200623145528.1658337-1-thierry.reding@gmail.com


Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
Signed-off-by: default avatarLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
parent e7b856df

Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt

+0 −12
Original line number Diff line number Diff line
@@ -112,28 +112,16 @@ Power supplies for Tegra124: 
- Required:

  - avddio-pex-supply: Power supply for analog PCIe logic. Must supply 1.05 V.

  - dvddio-pex-supply: Power supply for digital PCIe I/O. Must supply 1.05 V.

  - avdd-pex-pll-supply: Power supply for dedicated (internal) PCIe PLL. Must

    supply 1.05 V.

  - hvdd-pex-supply: High-voltage supply for PCIe I/O and PCIe output clocks.

    Must supply 3.3 V.

  - hvdd-pex-pll-e-supply: High-voltage supply for PLLE (shared with USB3).

    Must supply 3.3 V.

  - vddio-pex-ctl-supply: Power supply for PCIe control I/O partition. Must

    supply 2.8-3.3 V.

  - avdd-pll-erefe-supply: Power supply for PLLE (shared with USB3). Must

    supply 1.05 V.



Power supplies for Tegra210:

- Required:

  - avdd-pll-uerefe-supply: Power supply for PLLE (shared with USB3). Must

    supply 1.05 V.

  - hvddio-pex-supply: High-voltage supply for PCIe I/O and PCIe output

    clocks. Must supply 1.8 V.

  - dvddio-pex-supply: Power supply for digital PCIe I/O. Must supply 1.05 V.

  - dvdd-pex-pll-supply: Power supply for dedicated (internal) PCIe PLL. Must

    supply 1.05 V.

  - hvdd-pex-pll-e-supply: High-voltage supply for PLLE (shared with USB3).

    Must supply 3.3 V.

  - vddio-pex-ctl-supply: Power supply for PCIe control I/O partition. Must

    supply 1.8 V.

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