[PATCH V3 2/6] dt-bindings: PCI: tegra: Add PCIe slot supplies regulator entries
From: Vidya Sagar <hidden>
Date: 2019-08-28 17:29:14
Also in:
linux-devicetree, linux-pci, linux-tegra, lkml
Subsystem:
open firmware and flattened device tree bindings, pci native host bridge and endpoint drivers, pci subsystem, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Lorenzo Pieralisi, Krzysztof Wilczyński, Manivannan Sadhasivam, Bjorn Helgaas, Linus Torvalds
Add optional bindings "vpcie3v3-supply" and "vpcie12v-supply" to describe regulators of a PCIe slot's supplies 3.3V and 12V provided the platform is designed to have regulator controlled slot supplies. Signed-off-by: Vidya Sagar <redacted> --- V3: * None V2: * None .../devicetree/bindings/pci/nvidia,tegra194-pcie.txt | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.txt b/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.txt
index 0ac1b867ac24..b739f92da58e 100644
--- a/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.txt@@ -104,6 +104,12 @@ Optional properties: specified in microseconds - nvidia,aspm-l0s-entrance-latency-us: ASPM L0s entrance latency to be specified in microseconds +- vpcie3v3-supply: A phandle to the regulator node that supplies 3.3V to the slot + if the platform has one such slot. (Ex:- x16 slot owned by C5 controller + in p2972-0000 platform). +- vpcie12v-supply: A phandle to the regulator node that supplies 12V to the slot + if the platform has one such slot. (Ex:- x16 slot owned by C5 controller + in p2972-0000 platform). Examples: =========
@@ -156,6 +162,8 @@ Tegra194: 0xc2000000 0x18 0x00000000 0x18 0x00000000 0x4 0x00000000>; /* prefetchable memory (16GB) */ vddio-pex-ctl-supply = <&vdd_1v8ao>; + vpcie3v3-supply = <&vdd_3v3_pcie>; + vpcie12v-supply = <&vdd_12v_pcie>; phys = <&p2u_hsio_2>, <&p2u_hsio_3>, <&p2u_hsio_4>, <&p2u_hsio_5>;
--
2.17.1
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