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2023-12-08 01573e231f18eb2d99162747186f59511f56b64d

 kernel/Documentation/devicetree/bindings/usb/mediatek,mtu3.txt
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@@ -16,8 +16,8 @@
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 	entry in clock-names
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  - clock-names : must contain "sys_ck" for clock of controller,
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 	the following clocks are optional:
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-	"ref_ck", "mcu_ck" and "dam_ck";
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- - phys : see usb-hcd.txt in the current directory
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+	"ref_ck", "mcu_ck" and "dma_ck";
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+ - phys : see usb-hcd.yaml in the current directory
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  - dr_mode : should be one of "host", "peripheral" or "otg",
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 	refer to usb/generic.txt
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@@ -28,8 +28,13 @@
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 	parent's address space
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  - extcon : external connector for vbus and idpin changes detection, needed
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 	when supports dual-role mode.
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+	it's considered valid for compatibility reasons, not allowed for
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+	new bindings, and use "usb-role-switch" property instead.
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  - vbus-supply : reference to the VBUS regulator, needed when supports
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 	dual-role mode.
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+	it's considered valid for compatibility reasons, not allowed for
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+	new bindings, and put into a usb-connector node.
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+	see connector/usb-connector.yaml.
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  - pinctrl-names : a pinctrl state named "default" is optional, and need be
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 	defined if auto drd switch is enabled, that means the property dr_mode
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 	is set as "otg", and meanwhile the property "mediatek,enable-manual-drd"
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@@ -39,6 +44,8 @@
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  - maximum-speed : valid arguments are "super-speed", "high-speed" and
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 	"full-speed"; refer to usb/generic.txt
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+ - usb-role-switch : use USB Role Switch to support dual-role switch, but
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+	not extcon; see usb/generic.txt.
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  - enable-manual-drd : supports manual dual-role switch via debugfs; usually
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 	used when receptacle is TYPE-A and also wants to support dual-role
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 	mode.
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@@ -53,7 +60,7 @@
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  - mediatek,u3p-dis-msk : mask to disable u3ports, bit0 for u3port0,
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 	bit1 for u3port1, ... etc;
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-additionally the properties from usb-hcd.txt (in the current directory) are
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+additionally the properties from usb-hcd.yaml (in the current directory) are
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 supported.
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 Sub-nodes:
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@@ -61,6 +68,9 @@
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 if host mode is enabled. The DT binding details of xhci can be found in:
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 Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt
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+The port would be added as subnode if use "usb-role-switch" property.
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+	see graph.txt
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+
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 Example:
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 ssusb: usb@11271000 {
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 	compatible = "mediatek,mt8173-mtu3";