[PATCH v7 1/6] dt-bindings: usb: musb: Add support for MediaTek musb controller
From: <hidden>
Date: 2019-08-30 08:23:01
Also in:
linux-arm-kernel, linux-mediatek, linux-usb, lkml
Subsystem:
mediatek usb3 drd ip driver, open firmware and flattened device tree bindings, the rest, usb subsystem · Maintainers:
Chunfeng Yun, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds, Greg Kroah-Hartman
From: Min Guo <redacted>
This adds support for MediaTek musb controller in
host, peripheral and otg mode.
Signed-off-by: Min Guo <redacted>
---
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 | 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..2cb9e91
--- /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,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 + +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 = "gpio-usb-b-connector"; + label = "micro-USB"; + type = "micro"; + id-gpios = <&pio 44 GPIO_ACTIVE_HIGH>; + vbus-supply = <&usb_vbus>; + }; +};
--
1.9.1