| Message ID | 20191211015446.11477-2-min.guo@mediatek.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add MediaTek MUSB Controller Driver | expand |
On Wed, Dec 11, 2019 at 09:54:41AM +0800, min.guo@mediatek.com wrote: > From: Min Guo <min.guo@mediatek.com> > > This adds support for MediaTek musb controller in > host, peripheral and otg mode. > > Signed-off-by: Min Guo <min.guo@mediatek.com> > --- > changes in v9: > 1. Add usb-role-switch > 2. Remove label of usb connector child node > 3. Change usb connector child node compatible as "gpio-usb-b-connector", "usb-b-connector"; > > changes in v8: > 1. Add reviewed by Rob > > changes in v7: > 1. Modify compatible as > - compatible : should be one of: > "mediatek,mt2701-musb" > ... > followed by "mediatek,mtk-musb" > 2. Change usb connector child node compatible as "gpio-usb-b-connector" > > 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" > ... > 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 | 57 +++++++++++++++++++ > 1 file changed, 57 insertions(+) > create mode 100644 Documentation/devicetree/bindings/usb/mediatek,musb.txt Reviewed-by: Rob Herring <robh@kernel.org>
diff --git a/Documentation/devicetree/bindings/usb/mediatek,musb.txt b/Documentation/devicetree/bindings/usb/mediatek,musb.txt new file mode 100644 index 000000000000..2b8a87c90d9e --- /dev/null +++ b/Documentation/devicetree/bindings/usb/mediatek,musb.txt @@ -0,0 +1,57 @@ +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>; + }; +};