On Tue, Jun 04, 2019 at 07:39:14PM +0800, min.guo@xxxxxxxxxxxx wrote: > From: Min Guo <min.guo@xxxxxxxxxxxx> > > This adds support for MediaTek musb controller in > host, peripheral and otg mode. > > Signed-off-by: Min Guo <min.guo@xxxxxxxxxxxx> > --- > changes in v6: > 1. Modify usb connector child node > > changes in v5: > suggested by Rob: > 1. Modify compatible as > - compatible : should be one of: > "mediatek,mt-2701" No, should be: mediatek,mt2701-musb > ... > followed by "mediatek,mtk-musb" > 2. Add usb connector child node > > changes in v4: > suggested by Sergei: > 1. String alignment > > changes in v3: > 1. no changes > > changes in v2: > suggested by Bin: > 1. Modify DRC to DRD > suggested by Rob: > 2. Drop the "<soc-model>-musb" in compatible > 3. Remove phy-names > 4. Add space after comma in clock-names > --- > .../devicetree/bindings/usb/mediatek,musb.txt | 55 ++++++++++++++++++++++ > 1 file changed, 55 insertions(+) > create mode 100644 Documentation/devicetree/bindings/usb/mediatek,musb.txt > > diff --git a/Documentation/devicetree/bindings/usb/mediatek,musb.txt b/Documentation/devicetree/bindings/usb/mediatek,musb.txt > new file mode 100644 > index 0000000..7434299 > --- /dev/null > +++ b/Documentation/devicetree/bindings/usb/mediatek,musb.txt > @@ -0,0 +1,55 @@ > +MediaTek musb DRD/OTG controller > +------------------------------------------- > + > +Required properties: > + - compatible : should be one of: > + "mediatek,mt-2701" > + ... > + 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 > + > +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>; > + connector{ > + compatible = "linux,typeb-conn-gpio", "usb-b-connector"; linux,typeb-conn-gpio is not an accepted compatible string. > + label = "micro-USB"; > + type = "micro"; > + id-gpios = <&pio 44 GPIO_ACTIVE_HIGH>; > + vbus-supply = <&usb_vbus>; > + }; > +}; > -- > 1.9.1 >