On Fri, 2020-10-16 at 12:14 -0500, Rob Herring wrote: > On Tue, Oct 13, 2020 at 04:52:05PM +0800, Chunfeng Yun wrote: > > Convert mediatek,mtk-xhci.txt to YAML schema mediatek,mtk-xhci.yaml > > > > There's some refactoring of usb-hcd.yaml and XHCI schema under review > and this may need some refactoring on top of it. Ok, will do it > > > Signed-off-by: Chunfeng Yun <chunfeng.yun@xxxxxxxxxxxx> > > --- > > v2: new patch > > --- > > .../bindings/usb/mediatek,mtk-xhci.txt | 121 ------------ > > .../bindings/usb/mediatek,mtk-xhci.yaml | 180 ++++++++++++++++++ > > 2 files changed, 180 insertions(+), 121 deletions(-) > > delete mode 100644 Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt > > create mode 100644 Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml > > > > diff --git a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml > > new file mode 100644 > > index 000000000000..ea696c8f1269 > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml > > @@ -0,0 +1,180 @@ > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > > +# Copyright (c) 2020 MediaTek > > +%YAML 1.2 > > +--- > > +$id: http://devicetree.org/schemas/usb/mediatek,mtk-xhci.yaml# > > +$schema: http://devicetree.org/meta-schemas/core.yaml# > > + > > +title: MediaTek USB3 xHCI Device Tree Bindings > > + > > +maintainers: > > + - Chunfeng Yun <chunfeng.yun@xxxxxxxxxxxx> > > + > > +allOf: > > + - $ref: "usb-hcd.yaml" > > + > > +description: | > > + There are two scenarios: > > + case 1: only supports xHCI driver; > > + case 2: supports dual-role mode, and the host is based on xHCI driver. > > + > > +properties: > > + #common properties for both case 1 and case 2 > > + compatible: > > + items: > > + - enum: > > + - mediatek,mt2712-xhci > > + - mediatek,mt7622-xhci > > + - mediatek,mt7629-xhci > > + - mediatek,mt8173-xhci > > + - mediatek,mt8183-xhci > > + - const: mediatek,mtk-xhci > > + > > + reg: > > + minItems: 1 > > + maxItems: 2 > > + items: > > + - description: the registers of xHCI MAC > > + - description: the registers of IP Port Control > > + > > + reg-names: > > + minItems: 1 > > + maxItems: 2 > > + items: > > + - const: mac > > + - const: ippc #optional, only needed for case 1. > > + > > + interrupts: > > + maxItems: 1 > > + > > + power-domains: > > + description: A phandle to USB power domain node to control USB's MTCMOS > > + maxItems: 1 > > + > > + clocks: > > + minItems: 1 > > + maxItems: 5 > > + items: > > + - description: Controller clock used by normal mode > > + - description: Reference clock used by low power mode etc > > + - description: Mcu bus clock for register access > > + - description: DMA bus clock for data transfer > > + - description: controller clock > > + > > + clock-names: > > + minItems: 1 > > + maxItems: 5 > > + items: > > + - const: sys_ck #required, the following ones are optional > > + - const: ref_ck > > + - const: mcu_ck > > + - const: dma_ck > > + - const: xhci_ck > > + > > + phys: > > + $ref: /usb/usb-hcd.yaml# > > That doesn't look right... No need refer to it again? usb-hcd.yaml describes how to use phys/phy-names > > > + > > + vusb33-supply: > > + description: Regulator of USB AVDD3.3v > > + > > + vbus-supply: > > + description: Regulator of USB VBUS5v > > + > > + usb3-lpm-capable: > > + description: supports USB3.0 LPM > > + type: boolean > > + > > + imod-interval-ns: > > + $ref: /schemas/types.yaml#/definitions/uint32 > > + description: | > > + Interrupt moderation interval value, it is 8 times as much as that > > + defined in the xHCI spec on MTK's controller. > > + default: 5000 > > + > > + #the following properties are only used for case 1 > > + pinctrl-0: > > + description: A phandle to the default pinctrl state. > > + > > + pinctrl-names: > > + description: A pinctrl state named "default" must be defined. > > + See pinctrl/pinctrl-bindings.txt > > + const: default > > Don't need pinctrl-* properties. They are always allowed. Ok > > > + > > + wakeup-source: > > + description: enable USB remote wakeup, see power/wakeup-source.txt > > + type: boolean > > + > > + mediatek,syscon-wakeup: > > + $ref: /schemas/types.yaml#/definitions/phandle-array > > + maxItems: 1 > > + description: | > > + A phandle to syscon used to access the register of the USB wakeup glue > > + layer between xHCI and SPM, the field should always be a multiple of > > + 3 cells long. > > A multiple of 3? Seems wrong, only support one, will modify it > How would there be more than 3 cells? others will be ignored > > > + > > + items: > > + - description: > > + The first cell represents a phandle to syscon > > + - description: > > + The second cell represents the register base address of the glue > > + layer in syscon > > + - description: > > + The third cell represents the hardware version of the glue layer, > > + 1 is used by mt8173 etc, 2 is used by mt2712 etc > > + enum: [1, 2] > > + > > + mediatek,u3p-dis-msk: > > + $ref: /schemas/types.yaml#/definitions/uint32 > > + description: The mask to disable u3ports, bit0 for u3port0, > > + bit1 for u3port1, ... etc > > + > > + "#address-cells": > > + const: 1 > > + > > + "#size-cells": > > + const: 0 > > + > > +patternProperties: > > + "^[a-f]+@[0-9a-f]+$": > > + $ref: /usb/usb-hcd.yaml# > > + type: object > > + description: The hard wired USB devices. > > + > > +dependencies: > > + wakeup-source: [ 'mediatek,syscon-wakeup' ] > > + > > +required: > > + - compatible > > + - reg > > + - reg-names > > + - interrupts > > + - clocks > > + - clock-names > > + > > +additionalProperties: false > > + > > +examples: > > + - | > > + #include <dt-bindings/clock/mt8173-clk.h> > > + #include <dt-bindings/interrupt-controller/arm-gic.h> > > + #include <dt-bindings/interrupt-controller/irq.h> > > + #include <dt-bindings/phy/phy.h> > > + #include <dt-bindings/power/mt8173-power.h> > > + > > + usb3: usb@11270000 { > > + compatible = "mediatek,mt8173-xhci", "mediatek,mtk-xhci"; > > + reg = <0x11270000 0x1000>, <0x11280700 0x0100>; > > + reg-names = "mac", "ippc"; > > + interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_LOW>; > > + power-domains = <&scpsys MT8173_POWER_DOMAIN_USB>; > > + clocks = <&topckgen CLK_TOP_USB30_SEL>, <&clk26m>; > > + clock-names = "sys_ck", "ref_ck"; > > + phys = <&u3port0 PHY_TYPE_USB3>, <&u2port1 PHY_TYPE_USB2>; > > + vusb33-supply = <&mt6397_vusb_reg>; > > + vbus-supply = <&usb_p1_vbus>; > > + imod-interval-ns = <10000>; > > + mediatek,syscon-wakeup = <&pericfg 0x400 1>; > > + wakeup-source; > > + usb3-lpm-capable; > > + }; > > +... > > -- > > 2.18.0
