On Tue, Feb 13, 2024 at 05:32:37PM +0100, Sebastian Reichel wrote: > Add device tree binding document for Rockchip USBDP Combo PHY > with Samsung IP block. > > Co-developed-by: Frank Wang <frank.wang@xxxxxxxxxxxxxx> > Signed-off-by: Frank Wang <frank.wang@xxxxxxxxxxxxxx> > Signed-off-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxx> > --- > .../bindings/phy/phy-rockchip-usbdp.yaml | 169 ++++++++++++++++++ > 1 file changed, 169 insertions(+) > create mode 100644 Documentation/devicetree/bindings/phy/phy-rockchip-usbdp.yaml > > diff --git a/Documentation/devicetree/bindings/phy/phy-rockchip-usbdp.yaml b/Documentation/devicetree/bindings/phy/phy-rockchip-usbdp.yaml > new file mode 100644 > index 000000000000..4ac1825144d7 > --- /dev/null > +++ b/Documentation/devicetree/bindings/phy/phy-rockchip-usbdp.yaml > @@ -0,0 +1,169 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/phy/phy-rockchip-usbdp.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Rockchip USBDP Combo PHY with Samsung IP block > + > +maintainers: > + - Frank Wang <frank.wang@xxxxxxxxxxxxxx> > + - Zhang Yubing <yubing.zhang@xxxxxxxxxxxxxx> > + > +properties: > + compatible: > + enum: > + - rockchip,rk3588-usbdp-phy > + > + reg: > + maxItems: 1 > + > + clocks: > + maxItems: 4 > + > + clock-names: > + items: > + - const: refclk > + - const: immortal > + - const: pclk > + - const: utmi > + > + resets: > + maxItems: 5 > + > + reset-names: > + items: > + - const: init > + - const: cmn > + - const: lane > + - const: pcs_apb > + - const: pma_apb > + > + rockchip,dp-lane-mux: > + $ref: /schemas/types.yaml#/definitions/uint32-array > + minItems: 2 > + maxItems: 4 items: maximum: 3 > + description: > + An array of physical Type-C lanes indexes. Position of an entry > + determines the DisplayPort (DP) lane index, while the value of an entry > + indicates physical Type-C lane. The supported DP lanes number are 2 or 4. > + e.g. for 2 lanes DP lanes map, we could have "rockchip,dp-lane-mux = <2, > + 3>;", assuming DP lane0 on Type-C phy lane2, DP lane1 on Type-C phy > + lane3. For 4 lanes DP lanes map, we could have "rockchip,dp-lane-mux = > + <0, 1, 2, 3>;", assuming DP lane0 on Type-C phy lane0, DP lane1 on Type-C > + phy lane1, DP lane2 on Type-C phy lane2, DP lane3 on Type-C phy lane3. If > + DP lane map by DisplayPort Alt mode, this property is not need. > + > + rockchip,u2phy-grf: > + $ref: /schemas/types.yaml#/definitions/phandle > + description: > + Phandle to the syscon managing the 'usb2 phy general register files'. > + > + rockchip,usb-grf: > + $ref: /schemas/types.yaml#/definitions/phandle > + description: > + Phandle to the syscon managing the 'usb general register files'. > + > + rockchip,usbdpphy-grf: > + $ref: /schemas/types.yaml#/definitions/phandle > + description: > + Phandle to the syscon managing the 'usbdp phy general register files'. > + > + rockchip,vo-grf: > + $ref: /schemas/types.yaml#/definitions/phandle > + description: > + Phandle to the syscon managing the 'video output general register files'. > + When select the DP lane mapping will request its phandle. > + > + sbu1-dc-gpios: > + description: > + GPIO connected to the SBU1 line of the USB-C connector via a big resistor > + (~100K) to apply a DC offset for signalling the connector orientation. > + maxItems: 1 > + > + sbu2-dc-gpios: > + description: > + GPIO connected to the SBU2 line of the USB-C connector via a big resistor > + (~100K) to apply a DC offset for signalling the connector orientation. > + maxItems: 1 > + > + orientation-switch: > + description: Flag the port as possible handler of orientation switching > + type: boolean > + > + mode-switch: > + description: Flag the port as possible handler of altmode switching > + type: boolean > + > + dp-port: > + type: object > + additionalProperties: false > + > + properties: > + "#phy-cells": > + const: 0 > + > + required: > + - "#phy-cells" > + > + usb3-port: > + type: object > + additionalProperties: false > + > + properties: > + "#phy-cells": > + const: 0 > + > + required: > + - "#phy-cells" I don't see why these child nodes are needed. Just use a cell to define DP and USB3 phys. > + > + port: > + $ref: /schemas/graph.yaml#/properties/port > + description: > + A port node to link the PHY to a TypeC controller for the purpose of > + handling orientation switching. > + > +required: > + - compatible > + - reg > + - clocks > + - clock-names > + - resets > + - reset-names > + - dp-port > + - usb3-port > + > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/clock/rockchip,rk3588-cru.h> > + #include <dt-bindings/reset/rockchip,rk3588-cru.h> > + > + usbdp_phy0: phy@fed80000 { > + compatible = "rockchip,rk3588-usbdp-phy"; > + reg = <0xfed80000 0x10000>; > + clocks = <&cru CLK_USBDPPHY_MIPIDCPPHY_REF>, > + <&cru CLK_USBDP_PHY0_IMMORTAL>, > + <&cru PCLK_USBDPPHY0>, > + <&u2phy0>; > + clock-names = "refclk", "immortal", "pclk", "utmi"; > + resets = <&cru SRST_USBDP_COMBO_PHY0_INIT>, > + <&cru SRST_USBDP_COMBO_PHY0_CMN>, > + <&cru SRST_USBDP_COMBO_PHY0_LANE>, > + <&cru SRST_USBDP_COMBO_PHY0_PCS>, > + <&cru SRST_P_USBDPPHY0>; > + reset-names = "init", "cmn", "lane", "pcs_apb", "pma_apb"; > + rockchip,u2phy-grf = <&usb2phy0_grf>; > + rockchip,usb-grf = <&usb_grf>; > + rockchip,usbdpphy-grf = <&usbdpphy0_grf>; > + rockchip,vo-grf = <&vo0_grf>; > + > + usbdp_phy0_dp: dp-port { > + #phy-cells = <0>; > + }; > + > + usbdp_phy0_u3: usb3-port { > + #phy-cells = <0>; > + }; > + }; > -- > 2.43.0 >
