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Commit 45ca0dad authored by Min Guo's avatar Min Guo Committed by Macpaul Lin
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UPSTREAM: dt-bindings: usb: musb: Add support for MediaTek musb controller 



This adds support for MediaTek musb controller in
host, peripheral and otg mode.

Bug: 158724613
Signed-off-by: default avatarMin Guo <min.guo@mediatek.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarBin Liu <b-liu@ti.com>
Link: https://lore.kernel.org/r/20200115132547.364-20-b-liu@ti.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarMacpaul Lin <macpaul.lin@mediatek.com>
(cherry picked from commit 8d817d79349d953c8b05559e4cfd448785550e78)
Change-Id: Ia87cc819fd084fd15a166ace3ec55bbd1349db2e
parent d8cc60ec

Documentation/devicetree/bindings/usb/mediatek,musb.txt

0 → 100644
+57 −0
Original line number Diff line number Diff line 
MediaTek musb DRD/OTG controller

-------------------------------------------



Required properties:

 - compatible      : should be one of:

                     "mediatek,mt2701-musb"

                     ...

                     followed by "mediatek,mtk-musb"

 - reg             : specifies physical base address and size of

                     the registers

 - interrupts      : interrupt used by musb controller

 - interrupt-names : must be "mc"

 - phys            : PHY specifier for the OTG phy

 - dr_mode         : should be one of "host", "peripheral" or "otg",

                     refer to usb/generic.txt

 - clocks          : a list of phandle + clock-specifier pairs, one for

                     each entry in clock-names

 - clock-names     : must contain "main", "mcu", "univpll"

                     for clocks of controller



Optional properties:

 - power-domains   : a phandle to USB power domain node to control USB's

                     MTCMOS



Required child nodes:

 usb connector node as defined in bindings/connector/usb-connector.txt

Optional properties:

 - id-gpios        : input GPIO for USB ID pin.

 - vbus-gpios      : input GPIO for USB VBUS pin.

 - vbus-supply     : reference to the VBUS regulator, needed when supports

                     dual-role mode

 - usb-role-switch : use USB Role Switch to support dual-role switch, see

                     usb/generic.txt.



Example:



usb2: usb@11200000 {

	compatible = "mediatek,mt2701-musb",

		     "mediatek,mtk-musb";

	reg = <0 0x11200000 0 0x1000>;

	interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_LOW>;

	interrupt-names = "mc";

	phys = <&u2port2 PHY_TYPE_USB2>;

	dr_mode = "otg";

	clocks = <&pericfg CLK_PERI_USB0>,

		 <&pericfg CLK_PERI_USB0_MCU>,

		 <&pericfg CLK_PERI_USB_SLV>;

	clock-names = "main","mcu","univpll";

	power-domains = <&scpsys MT2701_POWER_DOMAIN_IFR_MSC>;

	usb-role-switch;

	connector{

		compatible = "gpio-usb-b-connector", "usb-b-connector";

		type = "micro";

		id-gpios = <&pio 44 GPIO_ACTIVE_HIGH>;

		vbus-supply = <&usb_vbus>;

	};

};