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-rw-r--r--Documentation/devicetree/bindings/phy/phy-mtk-tphy.txt10
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/phy/phy-mtk-tphy.txt b/Documentation/devicetree/bindings/phy/phy-mtk-tphy.txt
index a859b0db4051..dd75b676b71d 100644
--- a/Documentation/devicetree/bindings/phy/phy-mtk-tphy.txt
+++ b/Documentation/devicetree/bindings/phy/phy-mtk-tphy.txt
@@ -14,6 +14,16 @@ Required properties (controller (parent) node):
make use of "mediatek,generic-tphy-v1" on mt2701 instead and
"mediatek,generic-tphy-v2" on mt2712 instead.
+- #address-cells: the number of cells used to represent physical
+ base addresses.
+- #size-cells: the number of cells used to represent the size of an address.
+- ranges: the address mapping relationship to the parent, defined with
+ - empty value: if optional 'reg' is used.
+ - non-empty value: if optional 'reg' is not used. should set
+ the child's base address to 0, the physical address
+ within parent's address space, and the length of
+ the address map.
+
Required nodes : a sub-node is required for each port the controller
provides. Address range information including the usual
'reg' property is used inside these nodes to describe