From: Thierry Reding <treding@xxxxxxxxxx>
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.
Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
---
Hi Rob,
I already made this change as part of the conversion series, but wanted
to send this out as part of this subseries since it addresses a fairly
long-standing issue that I'd like to clean up irrespective of the DT
binding conversion. Since it looks like the conversion series will take
a bit longer, I think it makes sense to send this out separately.
Thierry
.../devicetree/bindings/pci/nvidia,tegra20-pcie.txt | 12 ------------
1 file changed, 12 deletions(-)
diff --git a/Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt b/Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt
index 7939bca47861..d099f3476ccc 100644
--- a/Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt
@@ -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.
--
2.27.0
