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authorKishon Vijay Abraham I <kishon@ti.com>2015-07-28 19:09:09 +0530
committerBjorn Helgaas <bhelgaas@google.com>2015-08-11 15:57:34 -0500
commit78bdcad05ea17fa1fe4644324b877162b1df4e16 (patch)
tree0c8ec8fd142c406aa8f38ef56ffb0b80bbc695af /Documentation/devicetree/bindings/pci/ti-pci.txt
parent389c7094ec241ee8ebe358ba10fe392018692c8c (diff)
PCI: dra7xx: Add support to make GPIO drive PERST# line
The PERST# line in am57x-evm is connected to a GPIO line and PERST# should be driven high to indicate the clocks are stable (As per Figure 2-10: Power Up of the PCIe CEM spec 3.0). Add support to make GPIO drive PERST# line. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'Documentation/devicetree/bindings/pci/ti-pci.txt')
-rw-r--r--Documentation/devicetree/bindings/pci/ti-pci.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pci/ti-pci.txt b/Documentation/devicetree/bindings/pci/ti-pci.txt
index 3d217911b313..60e25161f351 100644
--- a/Documentation/devicetree/bindings/pci/ti-pci.txt
+++ b/Documentation/devicetree/bindings/pci/ti-pci.txt
@@ -23,6 +23,9 @@ PCIe Designware Controller
interrupt-map-mask,
interrupt-map : as specified in ../designware-pcie.txt
+Optional Property:
+ - gpios : Should be added if a gpio line is required to drive PERST# line
+
Example:
axi {
compatible = "simple-bus";