Re: [PATCH v4 1/6] dt-bindings: usb: musb: Add support for MediaTek musb controller
From: Rob Herring <robh@kernel.org>
Date: 2019-01-21 15:14:23
Also in:
linux-devicetree, linux-mediatek, linux-usb, lkml
On Mon, Jan 21, 2019 at 08:22:26PM +0800, min.guo@mediatek.com wrote:
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 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
This is not what I said. I gave you the exact text to put.
quoted hunk ↗ jump to hunk
3. Remove phy-names 4. Add space after comma in clock-names --- .../devicetree/bindings/usb/mediatek,musb.txt | 43 ++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/mediatek,musb.txtdiff --git a/Documentation/devicetree/bindings/usb/mediatek,musb.txt b/Documentation/devicetree/bindings/usb/mediatek,musb.txt new file mode 100644 index 0000000..4305770 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/mediatek,musb.txt@@ -0,0 +1,43 @@ +MediaTek musb DRD/OTG controller +------------------------------------------- + +Required properties: + - compatible : should be "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: + - extcon : external connector for VBUS and ID pin changes detection, + needed when supports dual-role mode
Again, do not use extcon in new bindings.
+ - vbus-supply : reference to the VBUS regulator, needed when supports
+ dual-role mode
+ - power-domains : a phandle to USB power domain node to control USB's
+ MTCMOS
+
+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>;
+ vbus-supply = <&usb_vbus>;
+ extcon = <&extcon_usb>;
+ 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>;
+};
--
1.9.1
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