[RESEND,v5,05/11] dt-bindings: phy-mtk-tphy: add the properties about address mapping
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Message ID 4a18346dc774a4365713ad449bf2b1f991816762.1581389234.git.chunfeng.yun@mediatek.com
State In Next
Commit 297d1c1554f153d9b845493407ca825cbdf6ba60
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  • [RESEND,v5,01/11] dt-bindings: phy-mtk-tphy: add two optional properties for u2phy
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Chunfeng Yun Feb. 11, 2020, 3:21 a.m. UTC
Add three required properties about the address mapping, including
'#address-cells', '#size-cells' and 'ranges'

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Reviewed-by: Rob Herring <robh@kernel.org>
v3~v5: no changes

v2: add Reviewed-by Rob
 Documentation/devicetree/bindings/phy/phy-mtk-tphy.txt | 10 ++++++++++
 1 file changed, 10 insertions(+)

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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