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To handle the VBUS on/off by a regulator driver, this patch adds regulator APIs calling in the driver and description about vbus-supply in the rcar-gen3-phy-usb2.txt. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
41 lines
1.5 KiB
Plaintext
41 lines
1.5 KiB
Plaintext
* Renesas R-Car generation 3 USB 2.0 PHY
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This file provides information on what the device node for the R-Car generation
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3 USB 2.0 PHY contains.
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Required properties:
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- compatible: "renesas,usb2-phy-r8a7795" if the device is a part of an R8A7795
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SoC.
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"renesas,rcar-gen3-usb2-phy" for a generic R-Car Gen3 compatible device.
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When compatible with the generic version, nodes must list the
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SoC-specific version corresponding to the platform first
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followed by the generic version.
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- reg: offset and length of the partial USB 2.0 Host register block.
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- clocks: clock phandle and specifier pair(s).
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- #phy-cells: see phy-bindings.txt in the same directory, must be <0>.
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Optional properties:
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To use a USB channel where USB 2.0 Host and HSUSB (USB 2.0 Peripheral) are
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combined, the device tree node should set interrupt properties to use the
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channel as USB OTG:
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- interrupts: interrupt specifier for the PHY.
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- vbus-supply: Phandle to a regulator that provides power to the VBUS. This
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regulator will be managed during the PHY power on/off sequence.
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Example (R-Car H3):
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usb-phy@ee080200 {
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compatible = "renesas,usb2-phy-r8a7795", "renesas,rcar-gen3-usb2-phy";
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reg = <0 0xee080200 0 0x700>;
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interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&mstp7_clks R8A7795_CLK_EHCI0>;
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};
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usb-phy@ee0a0200 {
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compatible = "renesas,usb2-phy-r8a7795", "renesas,rcar-gen3-usb2-phy";
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reg = <0 0xee0a0200 0 0x700>;
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clocks = <&mstp7_clks R8A7795_CLK_EHCI0>;
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};
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