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dt-bindings: usb: convert mediatek, musb.txt to YAML schema
Convert mediatek,musb.txt to YAML schema mediatek,musb.yaml Cc: Min Guo <min.guo@mediatek.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Link: https://lore.kernel.org/r/20201225075258.33352-8-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Chunfeng Yun
Greg Kroah-Hartman
parent
6a0d64fc5a
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f9924caf5d
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MediaTek musb DRD/OTG controller
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-------------------------------------------
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Required properties:
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- compatible : should be one of:
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"mediatek,mt2701-musb"
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...
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followed by "mediatek,mtk-musb"
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- reg : specifies physical base address and size of
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the registers
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- interrupts : interrupt used by musb controller
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- interrupt-names : must be "mc"
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- phys : PHY specifier for the OTG phy
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- dr_mode : should be one of "host", "peripheral" or "otg",
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refer to usb/generic.txt
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- clocks : a list of phandle + clock-specifier pairs, one for
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each entry in clock-names
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- clock-names : must contain "main", "mcu", "univpll"
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for clocks of controller
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Optional properties:
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- power-domains : a phandle to USB power domain node to control USB's
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MTCMOS
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Required child nodes:
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usb connector node as defined in bindings/connector/usb-connector.yaml
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Optional properties:
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- id-gpios : input GPIO for USB ID pin.
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- vbus-gpios : input GPIO for USB VBUS pin.
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- vbus-supply : reference to the VBUS regulator, needed when supports
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dual-role mode
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- usb-role-switch : use USB Role Switch to support dual-role switch, see
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usb/generic.txt.
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Example:
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usb2: usb@11200000 {
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compatible = "mediatek,mt2701-musb",
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"mediatek,mtk-musb";
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reg = <0 0x11200000 0 0x1000>;
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interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_LOW>;
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interrupt-names = "mc";
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phys = <&u2port2 PHY_TYPE_USB2>;
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dr_mode = "otg";
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clocks = <&pericfg CLK_PERI_USB0>,
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<&pericfg CLK_PERI_USB0_MCU>,
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<&pericfg CLK_PERI_USB_SLV>;
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clock-names = "main","mcu","univpll";
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power-domains = <&scpsys MT2701_POWER_DOMAIN_IFR_MSC>;
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usb-role-switch;
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connector{
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compatible = "gpio-usb-b-connector", "usb-b-connector";
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type = "micro";
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id-gpios = <&pio 44 GPIO_ACTIVE_HIGH>;
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vbus-supply = <&usb_vbus>;
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};
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};
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@ -0,0 +1,113 @@
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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# Copyright (c) 2020 MediaTek
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/usb/mediatek,musb.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: MediaTek MUSB DRD/OTG Controller Device Tree Bindings
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maintainers:
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- Min Guo <min.guo@mediatek.com>
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properties:
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$nodename:
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pattern: '^usb@[0-9a-f]+$'
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compatible:
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items:
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- enum:
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- mediatek,mt2701-musb
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- const: mediatek,mtk-musb
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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interrupt-names:
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items:
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- const: mc
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clocks:
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items:
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- description: The main/core clock
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- description: The system bus clock
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- description: The 48Mhz clock
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clock-names:
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items:
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- const: main
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- const: mcu
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- const: univpll
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phys:
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maxItems: 1
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usb-role-switch:
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$ref: /schemas/types.yaml#/definitions/flag
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description: Support role switch. See usb/generic.txt
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type: boolean
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dr_mode:
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enum:
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- host
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- otg
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- peripheral
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power-domains:
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description: A phandle to USB power domain node to control USB's MTCMOS
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maxItems: 1
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connector:
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$ref: /connector/usb-connector.yaml#
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description: Connector for dual role switch
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type: object
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dependencies:
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usb-role-switch: [ 'connector' ]
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connector: [ 'usb-role-switch' ]
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required:
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- compatible
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- reg
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- interrupts
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- interrupt-names
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- phys
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- clocks
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- clock-names
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/clock/mt2701-clk.h>
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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#include <dt-bindings/interrupt-controller/irq.h>
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#include <dt-bindings/phy/phy.h>
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#include <dt-bindings/power/mt2701-power.h>
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usb@11200000 {
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compatible = "mediatek,mt2701-musb", "mediatek,mtk-musb";
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reg = <0x11200000 0x1000>;
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interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_LOW>;
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interrupt-names = "mc";
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phys = <&u2port2 PHY_TYPE_USB2>;
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dr_mode = "otg";
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clocks = <&pericfg CLK_PERI_USB0>,
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<&pericfg CLK_PERI_USB0_MCU>,
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<&pericfg CLK_PERI_USB_SLV>;
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clock-names = "main","mcu","univpll";
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power-domains = <&scpsys MT2701_POWER_DOMAIN_IFR_MSC>;
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usb-role-switch;
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connector {
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compatible = "gpio-usb-b-connector", "usb-b-connector";
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type = "micro";
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id-gpios = <&pio 44 GPIO_ACTIVE_HIGH>;
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vbus-supply = <&usb_vbus>;
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};
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};
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...
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