| Message ID | 20201216093012.24406-9-chunfeng.yun@mediatek.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | [v4,01/11] dt-bindings: usb: convert usb-device.txt to YAML schema | expand |
On Wed, Dec 16, 2020 at 05:30:10PM +0800, Chunfeng Yun wrote: > Convert mediatek,mtk-xhci.txt to YAML schema mediatek,mtk-xhci.yaml > > Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> > --- > v4: update it according to Rob's suggestion > 1. modify dictionary of phys > 2. fix endentation in "mediatek,syscon-wakeup" items > 3. remove reference to usb-hcd.yaml > > v3: > 1. fix yamllint warning > 2. remove pinctrl* properties supported by default suggested by Rob > 3. drop unused labels > 4. modify description of mediatek,syscon-wakeup > 5. remove type of imod-interval-ns > > v2: new patch > --- > .../bindings/usb/mediatek,mtk-xhci.txt | 121 ------------- > .../bindings/usb/mediatek,mtk-xhci.yaml | 171 ++++++++++++++++++ > 2 files changed, 171 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.txt b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt > deleted file mode 100644 > index 42d8814f903a..000000000000 > --- a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt > +++ /dev/null > @@ -1,121 +0,0 @@ > -MT8173 xHCI > - > -The device node for Mediatek SOC USB3.0 host controller > - > -There are two scenarios: the first one only supports xHCI driver; > -the second one supports dual-role mode, and the host is based on xHCI > -driver. Take account of backward compatibility, we divide bindings > -into two parts. > - > -1st: only supports xHCI driver > ------------------------------------------------------------------------- > - > -Required properties: > - - compatible : should be "mediatek,<soc-model>-xhci", "mediatek,mtk-xhci", > - soc-model is the name of SoC, such as mt8173, mt2712 etc, when using > - "mediatek,mtk-xhci" compatible string, you need SoC specific ones in > - addition, one of: > - - "mediatek,mt8173-xhci" > - - reg : specifies physical base address and size of the registers > - - reg-names: should be "mac" for xHCI MAC and "ippc" for IP port control > - - interrupts : interrupt used by the controller > - - power-domains : a phandle to USB power domain node to control USB's > - mtcmos > - - vusb33-supply : regulator of USB avdd3.3v > - > - - clocks : a list of phandle + clock-specifier pairs, one for each > - entry in clock-names > - - clock-names : must contain > - "sys_ck": controller clock used by normal mode, > - the following ones are optional: > - "ref_ck": reference clock used by low power mode etc, > - "mcu_ck": mcu_bus clock for register access, > - "dma_ck": dma_bus clock for data transfer by DMA, > - "xhci_ck": controller clock > - > - - phys : see usb-hcd.yaml in the current directory > - > -Optional properties: > - - wakeup-source : enable USB remote wakeup; > - - mediatek,syscon-wakeup : phandle to syscon used to access the register > - of the USB wakeup glue layer between xHCI and SPM; it depends on > - "wakeup-source", and has two arguments: > - - the first one : register base address of the glue layer in syscon; > - - the second one : hardware version of the glue layer > - - 1 : used by mt8173 etc > - - 2 : used by mt2712 etc > - - mediatek,u3p-dis-msk : mask to disable u3ports, bit0 for u3port0, > - bit1 for u3port1, ... etc; > - - vbus-supply : reference to the VBUS regulator; > - - usb3-lpm-capable : supports USB3.0 LPM > - - pinctrl-names : a pinctrl state named "default" must be defined > - - pinctrl-0 : pin control group > - See: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt > - - imod-interval-ns: default interrupt moderation interval is 5000ns > - > -additionally the properties from usb-hcd.yaml (in the current directory) are > -supported. > - > -Example: > -usb30: usb@11270000 { > - compatible = "mediatek,mt8173-xhci"; > - reg = <0 0x11270000 0 0x1000>, > - <0 0x11280700 0 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>, > - <&pericfg CLK_PERI_USB0>, > - <&pericfg CLK_PERI_USB1>; > - clock-names = "sys_ck", "ref_ck"; > - phys = <&phy_port0 PHY_TYPE_USB3>, > - <&phy_port1 PHY_TYPE_USB2>; > - vusb33-supply = <&mt6397_vusb_reg>; > - vbus-supply = <&usb_p1_vbus>; > - usb3-lpm-capable; > - mediatek,syscon-wakeup = <&pericfg 0x400 1>; > - wakeup-source; > - imod-interval-ns = <10000>; > -}; > - > -2nd: dual-role mode with xHCI driver > ------------------------------------------------------------------------- > - > -In the case, xhci is added as subnode to mtu3. An example and the DT binding > -details of mtu3 can be found in: > -Documentation/devicetree/bindings/usb/mediatek,mtu3.txt > - > -Required properties: > - - compatible : should be "mediatek,<soc-model>-xhci", "mediatek,mtk-xhci", > - soc-model is the name of SoC, such as mt8173, mt2712 etc, when using > - "mediatek,mtk-xhci" compatible string, you need SoC specific ones in > - addition, one of: > - - "mediatek,mt8173-xhci" > - - reg : specifies physical base address and size of the registers > - - reg-names: should be "mac" for xHCI MAC > - - interrupts : interrupt used by the host controller > - - power-domains : a phandle to USB power domain node to control USB's > - mtcmos > - - vusb33-supply : regulator of USB avdd3.3v > - > - - clocks : a list of phandle + clock-specifier pairs, one for each > - entry in clock-names > - - clock-names : must contain "sys_ck", and the following ones are optional: > - "ref_ck", "mcu_ck" and "dma_ck", "xhci_ck" > - > -Optional properties: > - - vbus-supply : reference to the VBUS regulator; > - - usb3-lpm-capable : supports USB3.0 LPM > - > -Example: > -usb30: usb@11270000 { > - compatible = "mediatek,mt8173-xhci"; > - reg = <0 0x11270000 0 0x1000>; > - reg-names = "mac"; > - 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"; > - vusb33-supply = <&mt6397_vusb_reg>; > - usb3-lpm-capable; > -}; > 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..e5e03f902802 > --- /dev/null > +++ b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml > @@ -0,0 +1,171 @@ > +# 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@mediatek.com> > + > +allOf: > + - $ref: "usb-hcd.yaml" This will need to reference Serge's xhci.yaml instead. > + > +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 You can drop maxItems, as that is implied by length of 'items'. > + 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: > + description: List of at most 5 USB2 PHYs and 4 USB3 PHYs on this HCD If it's less, how does one know what each phy is? > + minItems: 0 minItems: 0 is never correct. That's phys not being present. > + maxItems: 9 > + > + 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: > + 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 > + 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 3 cells long. > + items: > + 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: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: The mask to disable u3ports, bit0 for u3port0, > + bit1 for u3port1, ... etc > + > + "#address-cells": > + const: 1 > + > + "#size-cells": > + const: 0 > + > +patternProperties: > + "^[a-f]+@[0-9a-f]+$": [a-f]+ doesn't cover all possible node names. Just '@[0-9a-f]+$', though I assume you have some max number of ports less than 16? > + type: object > + description: The hard wired USB devices. This needs to reference usb-device.yaml. Or usb-hcd.yaml does and then this isn't needed. It depends if child nodes of USB host controller are always USB devices or not. Serge? > + > +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> > + > + 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 >
On Mon, 2020-12-21 at 12:23 -0700, Rob Herring wrote: > On Wed, Dec 16, 2020 at 05:30:10PM +0800, Chunfeng Yun wrote: > > Convert mediatek,mtk-xhci.txt to YAML schema mediatek,mtk-xhci.yaml > > > > Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> > > --- > > v4: update it according to Rob's suggestion > > 1. modify dictionary of phys > > 2. fix endentation in "mediatek,syscon-wakeup" items > > 3. remove reference to usb-hcd.yaml > > > > v3: > > 1. fix yamllint warning > > 2. remove pinctrl* properties supported by default suggested by Rob > > 3. drop unused labels > > 4. modify description of mediatek,syscon-wakeup > > 5. remove type of imod-interval-ns > > > > v2: new patch > > --- > > .../bindings/usb/mediatek,mtk-xhci.txt | 121 ------------- > > .../bindings/usb/mediatek,mtk-xhci.yaml | 171 ++++++++++++++++++ > > 2 files changed, 171 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.txt b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt > > deleted file mode 100644 > > index 42d8814f903a..000000000000 > > --- a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt > > +++ /dev/null [...] > > +$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@mediatek.com> > > + > > +allOf: > > + - $ref: "usb-hcd.yaml" > > This will need to reference Serge's xhci.yaml instead. Yes, I forgot it > > > + > > +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 > > You can drop maxItems, as that is implied by length of 'items'. Ok, will drop it for the following ones > > > + 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: > > + description: List of at most 5 USB2 PHYs and 4 USB3 PHYs on this HCD > > If it's less, how does one know what each phy is? The SoC's spec will tell how many phys used, but each project may use some phys of them, due to not all ports are used for some scenarios. > > > + minItems: 0 > > minItems: 0 is never correct. That's phys not being present. Ok, will modify it. But it's useful for the case that the phy is an external sub-board, and can works without initialization. (FPGA env.) > > > + maxItems: 9 > > + > > + 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: > > + 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 > > + 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 3 cells long. > > + items: > > + 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: > > + $ref: /schemas/types.yaml#/definitions/uint32 > > + description: The mask to disable u3ports, bit0 for u3port0, > > + bit1 for u3port1, ... etc > > + > > + "#address-cells": > > + const: 1 > > + > > + "#size-cells": > > + const: 0 > > + > > +patternProperties: > > + "^[a-f]+@[0-9a-f]+$": > > [a-f]+ doesn't cover all possible node names. Just '@[0-9a-f]+$', though > I assume you have some max number of ports less than 16? Yes, in fact, less than 6, will limit the allowed length > > > + type: object > > + description: The hard wired USB devices. > > This needs to reference usb-device.yaml. Or usb-hcd.yaml does and > then this isn't needed. usb-hcd.yaml aready does Thanks a lot > It depends if child nodes of USB host controller > are always USB devices or not. Serge? > > > + > > +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> > > + > > + 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 > >
diff --git a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt deleted file mode 100644 index 42d8814f903a..000000000000 --- a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt +++ /dev/null @@ -1,121 +0,0 @@ -MT8173 xHCI - -The device node for Mediatek SOC USB3.0 host controller - -There are two scenarios: the first one only supports xHCI driver; -the second one supports dual-role mode, and the host is based on xHCI -driver. Take account of backward compatibility, we divide bindings -into two parts. - -1st: only supports xHCI driver ------------------------------------------------------------------------- - -Required properties: - - compatible : should be "mediatek,<soc-model>-xhci", "mediatek,mtk-xhci", - soc-model is the name of SoC, such as mt8173, mt2712 etc, when using - "mediatek,mtk-xhci" compatible string, you need SoC specific ones in - addition, one of: - - "mediatek,mt8173-xhci" - - reg : specifies physical base address and size of the registers - - reg-names: should be "mac" for xHCI MAC and "ippc" for IP port control - - interrupts : interrupt used by the controller - - power-domains : a phandle to USB power domain node to control USB's - mtcmos - - vusb33-supply : regulator of USB avdd3.3v - - - clocks : a list of phandle + clock-specifier pairs, one for each - entry in clock-names - - clock-names : must contain - "sys_ck": controller clock used by normal mode, - the following ones are optional: - "ref_ck": reference clock used by low power mode etc, - "mcu_ck": mcu_bus clock for register access, - "dma_ck": dma_bus clock for data transfer by DMA, - "xhci_ck": controller clock - - - phys : see usb-hcd.yaml in the current directory - -Optional properties: - - wakeup-source : enable USB remote wakeup; - - mediatek,syscon-wakeup : phandle to syscon used to access the register - of the USB wakeup glue layer between xHCI and SPM; it depends on - "wakeup-source", and has two arguments: - - the first one : register base address of the glue layer in syscon; - - the second one : hardware version of the glue layer - - 1 : used by mt8173 etc - - 2 : used by mt2712 etc - - mediatek,u3p-dis-msk : mask to disable u3ports, bit0 for u3port0, - bit1 for u3port1, ... etc; - - vbus-supply : reference to the VBUS regulator; - - usb3-lpm-capable : supports USB3.0 LPM - - pinctrl-names : a pinctrl state named "default" must be defined - - pinctrl-0 : pin control group - See: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt - - imod-interval-ns: default interrupt moderation interval is 5000ns - -additionally the properties from usb-hcd.yaml (in the current directory) are -supported. - -Example: -usb30: usb@11270000 { - compatible = "mediatek,mt8173-xhci"; - reg = <0 0x11270000 0 0x1000>, - <0 0x11280700 0 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>, - <&pericfg CLK_PERI_USB0>, - <&pericfg CLK_PERI_USB1>; - clock-names = "sys_ck", "ref_ck"; - phys = <&phy_port0 PHY_TYPE_USB3>, - <&phy_port1 PHY_TYPE_USB2>; - vusb33-supply = <&mt6397_vusb_reg>; - vbus-supply = <&usb_p1_vbus>; - usb3-lpm-capable; - mediatek,syscon-wakeup = <&pericfg 0x400 1>; - wakeup-source; - imod-interval-ns = <10000>; -}; - -2nd: dual-role mode with xHCI driver ------------------------------------------------------------------------- - -In the case, xhci is added as subnode to mtu3. An example and the DT binding -details of mtu3 can be found in: -Documentation/devicetree/bindings/usb/mediatek,mtu3.txt - -Required properties: - - compatible : should be "mediatek,<soc-model>-xhci", "mediatek,mtk-xhci", - soc-model is the name of SoC, such as mt8173, mt2712 etc, when using - "mediatek,mtk-xhci" compatible string, you need SoC specific ones in - addition, one of: - - "mediatek,mt8173-xhci" - - reg : specifies physical base address and size of the registers - - reg-names: should be "mac" for xHCI MAC - - interrupts : interrupt used by the host controller - - power-domains : a phandle to USB power domain node to control USB's - mtcmos - - vusb33-supply : regulator of USB avdd3.3v - - - clocks : a list of phandle + clock-specifier pairs, one for each - entry in clock-names - - clock-names : must contain "sys_ck", and the following ones are optional: - "ref_ck", "mcu_ck" and "dma_ck", "xhci_ck" - -Optional properties: - - vbus-supply : reference to the VBUS regulator; - - usb3-lpm-capable : supports USB3.0 LPM - -Example: -usb30: usb@11270000 { - compatible = "mediatek,mt8173-xhci"; - reg = <0 0x11270000 0 0x1000>; - reg-names = "mac"; - 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"; - vusb33-supply = <&mt6397_vusb_reg>; - usb3-lpm-capable; -}; 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..e5e03f902802 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml @@ -0,0 +1,171 @@ +# 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@mediatek.com> + +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: + description: List of at most 5 USB2 PHYs and 4 USB3 PHYs on this HCD + minItems: 0 + maxItems: 9 + + 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: + 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 + 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 3 cells long. + items: + 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: + $ref: /schemas/types.yaml#/definitions/uint32 + description: The mask to disable u3ports, bit0 for u3port0, + bit1 for u3port1, ... etc + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + +patternProperties: + "^[a-f]+@[0-9a-f]+$": + 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> + + 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; + }; +...
Convert mediatek,mtk-xhci.txt to YAML schema mediatek,mtk-xhci.yaml Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> --- v4: update it according to Rob's suggestion 1. modify dictionary of phys 2. fix endentation in "mediatek,syscon-wakeup" items 3. remove reference to usb-hcd.yaml v3: 1. fix yamllint warning 2. remove pinctrl* properties supported by default suggested by Rob 3. drop unused labels 4. modify description of mediatek,syscon-wakeup 5. remove type of imod-interval-ns v2: new patch --- .../bindings/usb/mediatek,mtk-xhci.txt | 121 ------------- .../bindings/usb/mediatek,mtk-xhci.yaml | 171 ++++++++++++++++++ 2 files changed, 171 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