Document "nvidia,plat-gpios" optional property which supports configuring
of platform specific gpios.
Signed-off-by: Manikanta Maddireddy <mmaddireddy@xxxxxxxxxx>
---
Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt | 3 +++
1 file changed, 3 insertions(+)
diff --git a/Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt b/Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt
index fbbd3bcb3435..dca8393b86d1 100644
--- a/Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt
@@ -73,6 +73,8 @@ Optional properties:
pinctrl phandle to allow driver to explicitly put PCIe IO in DPD state.
- pinctrl-1: PCIe IO(bias & REFCLK) deep power down(DPD) enable state.
Pass pinctrl phandle to allow driver bring PCIe IO out of DPD state.
+- nvidia,plat-gpios: A list of platform specific gpios which controls
+ endpoint's internal regulator or PCIe logic.
Required properties on Tegra124 and later (deprecated):
- phys: Must contain an entry for each entry in phy-names.
@@ -567,6 +569,7 @@ Board DTS:
pci@2,0 {
phys = <&{/padctl@7009f000/pads/pcie/lanes/pcie-4}>;
phy-names = "pcie-0";
+ nvidia,plat-gpios = <&gpio TEGRA_GPIO(X, 3) GPIO_ACTIVE_HIGH>;
status = "okay";
};
};
--
2.17.1
