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authorManikanta Maddireddy <mmaddireddy@nvidia.com>2019-06-18 23:32:04 +0530
committerLorenzo Pieralisi <lorenzo.pieralisi@arm.com>2019-06-20 17:40:48 +0100
commit0fc8b82f31c4a7bea4c487d380a10d1271bf8d4d (patch)
tree281838dfcb11abef4db53cb9645b59a9540c9263 /Documentation/devicetree/bindings/pci/pci.txt
parentPCI: tegra: Put PEX CLK & BIAS pads in DPD mode (diff)
downloadwireguard-linux-0fc8b82f31c4a7bea4c487d380a10d1271bf8d4d.tar.xz
wireguard-linux-0fc8b82f31c4a7bea4c487d380a10d1271bf8d4d.zip
PCI: Add DT binding for "reset-gpios" property
Add DT binding for "reset-gpios" property which supports GPIO based PERST# signal. Signed-off-by: Manikanta Maddireddy <mmaddireddy@nvidia.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'Documentation/devicetree/bindings/pci/pci.txt')
-rw-r--r--Documentation/devicetree/bindings/pci/pci.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pci/pci.txt b/Documentation/devicetree/bindings/pci/pci.txt
index 92c01db610df..2a5d91024059 100644
--- a/Documentation/devicetree/bindings/pci/pci.txt
+++ b/Documentation/devicetree/bindings/pci/pci.txt
@@ -24,6 +24,9 @@ driver implementation may support the following properties:
unsupported link speed, for instance, trying to do training for
unsupported link speed, etc. Must be '4' for gen4, '3' for gen3, '2'
for gen2, and '1' for gen1. Any other values are invalid.
+- reset-gpios:
+ If present this property specifies PERST# GPIO. Host drivers can parse the
+ GPIO and apply fundamental reset to endpoints.
PCI-PCI Bridge properties
-------------------------