Convert Renesas R-Car generation 3 USB 3.0 PHY bindings documentation to json-schema. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx> --- Changes from v1: - Remove oneOf from compatible. - Make renesas,ssc-range values a schema. https://patchwork.kernel.org/patch/11197807/ .../devicetree/bindings/phy/rcar-gen3-phy-usb3.txt | 52 --------------- .../devicetree/bindings/phy/renesas,usb3-phy.yaml | 78 ++++++++++++++++++++++ 2 files changed, 78 insertions(+), 52 deletions(-) delete mode 100644 Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb3.txt create mode 100644 Documentation/devicetree/bindings/phy/renesas,usb3-phy.yaml diff --git a/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb3.txt b/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb3.txt deleted file mode 100644 index 0fe433b..00000000 --- a/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb3.txt +++ /dev/null @@ -1,52 +0,0 @@ -* Renesas R-Car generation 3 USB 3.0 PHY - -This file provides information on what the device node for the R-Car generation -3 and RZ/G2 USB 3.0 PHY contain. -If you want to enable spread spectrum clock (ssc), you should use USB_EXTAL -instead of USB3_CLK. However, if you don't want to these features, you don't -need this driver. - -Required properties: -- compatible: "renesas,r8a774a1-usb3-phy" if the device is a part of an R8A774A1 - SoC. - "renesas,r8a774b1-usb3-phy" if the device is a part of an R8A774B1 - SoC. - "renesas,r8a7795-usb3-phy" if the device is a part of an R8A7795 - SoC. - "renesas,r8a7796-usb3-phy" if the device is a part of an R8A7796 - SoC. - "renesas,r8a77965-usb3-phy" if the device is a part of an - R8A77965 SoC. - "renesas,rcar-gen3-usb3-phy" for a generic R-Car Gen3 or RZ/G2 - compatible device. - - When compatible with the generic version, nodes must list the - SoC-specific version corresponding to the platform first - followed by the generic version. - -- reg: offset and length of the USB 3.0 PHY register block. -- clocks: A list of phandles and clock-specifier pairs. -- clock-names: Name of the clocks. - - The funcional clock must be "usb3-if". - - The usb3's external clock must be "usb3s_clk". - - The usb2's external clock must be "usb_extal". If you want to use the ssc, - the clock-frequency must not be 0. -- #phy-cells: see phy-bindings.txt in the same directory, must be <0>. - -Optional properties: -- renesas,ssc-range: Enable/disable spread spectrum clock (ssc) by using - the following values as u32: - - 0 (or the property doesn't exist): disable the ssc - - 4980: enable the ssc as -4980 ppm - - 4492: enable the ssc as -4492 ppm - - 4003: enable the ssc as -4003 ppm - -Example (R-Car H3): - - usb-phy@e65ee000 { - compatible = "renesas,r8a7795-usb3-phy", - "renesas,rcar-gen3-usb3-phy"; - reg = <0 0xe65ee000 0 0x90>; - clocks = <&cpg CPG_MOD 328>, <&usb3s0_clk>, <&usb_extal>; - clock-names = "usb3-if", "usb3s_clk", "usb_extal"; - }; diff --git a/Documentation/devicetree/bindings/phy/renesas,usb3-phy.yaml b/Documentation/devicetree/bindings/phy/renesas,usb3-phy.yaml new file mode 100644 index 00000000..dcd1cd5 --- /dev/null +++ b/Documentation/devicetree/bindings/phy/renesas,usb3-phy.yaml @@ -0,0 +1,78 @@ +# SPDX-License-Identifier: GPL-2.0-only +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/phy/renesas,usb3-phy.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Renesas R-Car generation 3 USB 3.0 PHY + +maintainers: + - Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx> + +properties: + compatible: + items: + - enum: + - renesas,r8a774a1-usb3-phy # RZ/G2M + - renesas,r8a774b1-usb3-phy # RZ/G2N + - renesas,r8a7795-usb3-phy # R-Car H3 + - renesas,r8a7796-usb3-phy # R-Car M3-W + - renesas,r8a77965-usb3-phy # R-Car M3-N + - const: renesas,rcar-gen3-usb3-phy + + reg: + # base address and length of the registers block for the PHY. + maxItems: 1 + + clocks: + # A list of phandles and clock-specifier pairs. + maxItems: 3 + + clock-names: + # If you want to use the ssc, the clock-frequency of usb_extal + # must not be 0. + maxItems: 3 + items: + - const: usb3-if # The funcional clock + - const: usb3s_clk # The usb3's external clock + - const: usb_extal # The usb2's external clock + + '#phy-cells': + # see phy-bindings.txt in the same directory + const: 0 + + power-domains: + maxItems: 1 + + resets: + maxItems: 1 + + renesas,ssc-range: + description: | + Enable/disable spread spectrum clock (ssc). 0 or the property doesn't + exist means disabliing the ssc. + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + - enum: [ 0, 4003, 4492, 4980 ] + +required: + - compatible + - reg + - clocks + - clock-names + - '#phy-cells' + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/r8a7795-cpg-mssr.h> + #include <dt-bindings/power/r8a7795-sysc.h> + + usb-phy@e65ee000 { + compatible = "renesas,r8a7795-usb3-phy", "renesas,rcar-gen3-usb3-phy"; + reg = <0 0xe65ee000 0 0x90>; + clocks = <&cpg CPG_MOD 328>, <&usb3s0_clk>, <&usb_extal>; + clock-names = "usb3-if", "usb3s_clk", "usb_extal"; + #phy-cells = <0>; + }; -- 2.7.4
