Convert the Samsung SoC USB 2.0 PHY bindings to DT schema format. Except the conversion, add also vbus-supply property which was already used by the driver and DTS. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx> --- .../bindings/phy/samsung,usb2-phy.yaml | 102 ++++++++++++++++++ .../devicetree/bindings/phy/samsung-phy.txt | 60 ----------- MAINTAINERS | 2 +- 3 files changed, 103 insertions(+), 61 deletions(-) create mode 100644 Documentation/devicetree/bindings/phy/samsung,usb2-phy.yaml diff --git a/Documentation/devicetree/bindings/phy/samsung,usb2-phy.yaml b/Documentation/devicetree/bindings/phy/samsung,usb2-phy.yaml new file mode 100644 index 000000000000..056e270a4e88 --- /dev/null +++ b/Documentation/devicetree/bindings/phy/samsung,usb2-phy.yaml @@ -0,0 +1,102 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/phy/samsung,usb2-phy.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Samsung S5P/Exynos SoC USB 2.0 PHY + +maintainers: + - Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx> + - Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> + - Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx> + +description: | + The first phandle argument in the PHY specifier identifies the PHY, its + meaning is compatible dependent. For the currently supported SoCs (Exynos4210 + and Exynos4212) it is as follows:: + 0 - USB device ("device"), + 1 - USB host ("host"), + 2 - HSIC0 ("hsic0"), + 3 - HSIC1 ("hsic1"), + Exynos3250 has only USB device phy available as phy 0. + + Exynos4210 and Exynos4212 use mode switching and require that mode switch + register is supplied. + +properties: + compatible: + enum: + - samsung,exynos3250-usb2-phy + - samsung,exynos4210-usb2-phy + - samsung,exynos4x12-usb2-phy + - samsung,exynos5250-usb2-phy + - samsung,exynos5420-usb2-phy + - samsung,s5pv210-usb2-phy + + clocks: + items: + - description: PHY module gate clock. + - description: Reference rate clock of PHY module. + + clock-names: + items: + - const: phy + - const: ref + + "#phy-cells": + const: 1 + + reg: + maxItems: 1 + + samsung,pmureg-phandle: + $ref: /schemas/types.yaml#/definitions/phandle + description: + Phandle to PMU system controller interface. + + samsung,sysreg-phandle: + $ref: /schemas/types.yaml#/definitions/phandle + description: + Phandle to system registers interface. + + vbus-supply: + description: + VBUS power source. + +required: + - compatible + - clocks + - clock-names + - "#phy-cells" + - reg + - samsung,pmureg-phandle + +allOf: + - if: + properties: + compatible: + contains: + enum: + - samsung,exynos4x12-usb2-phy + - samsung,exynos5250-usb2-phy + - samsung,exynos5420-usb2-phy + then: + required: + - samsung,sysreg-phandle + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/exynos5420.h> + + phy@12130000 { + compatible = "samsung,exynos5420-usb2-phy"; + reg = <0x12130000 0x100>; + #phy-cells = <1>; + clocks = <&clock CLK_USBH20>, <&clock CLK_SCLK_USBPHY300>; + clock-names = "phy", "ref"; + samsung,sysreg-phandle = <&sysreg_system_controller>; + samsung,pmureg-phandle = <&pmu_system_controller>; + }; diff --git a/Documentation/devicetree/bindings/phy/samsung-phy.txt b/Documentation/devicetree/bindings/phy/samsung-phy.txt index 839ffe2a2d05..d26ac7401258 100644 --- a/Documentation/devicetree/bindings/phy/samsung-phy.txt +++ b/Documentation/devicetree/bindings/phy/samsung-phy.txt @@ -1,63 +1,3 @@ -Samsung S5P/Exynos SoC series USB PHY -------------------------------------------------- - -Required properties: -- compatible : should be one of the listed compatibles: - - "samsung,exynos3250-usb2-phy" - - "samsung,exynos4210-usb2-phy" - - "samsung,exynos4x12-usb2-phy" - - "samsung,exynos5250-usb2-phy" - - "samsung,exynos5420-usb2-phy" - - "samsung,s5pv210-usb2-phy" -- reg : a list of registers used by phy driver - - first and obligatory is the location of phy modules registers -- samsung,sysreg-phandle - handle to syscon used to control the system registers -- samsung,pmureg-phandle - handle to syscon used to control PMU registers -- #phy-cells : from the generic phy bindings, must be 1; -- clocks and clock-names: - - the "phy" clock is required by the phy module, used as a gate - - the "ref" clock is used to get the rate of the clock provided to the - PHY module - -Optional properties: -- vbus-supply: power-supply phandle for vbus power source - -The first phandle argument in the PHY specifier identifies the PHY, its -meaning is compatible dependent. For the currently supported SoCs (Exynos 4210 -and Exynos 4212) it is as follows: - 0 - USB device ("device"), - 1 - USB host ("host"), - 2 - HSIC0 ("hsic0"), - 3 - HSIC1 ("hsic1"), -Exynos3250 has only USB device phy available as phy 0. - -Exynos 4210 and Exynos 4212 use mode switching and require that mode switch -register is supplied. - -Example: - -For Exynos 4412 (compatible with Exynos 4212): - -usbphy: phy@125b0000 { - compatible = "samsung,exynos4x12-usb2-phy"; - reg = <0x125b0000 0x100>; - clocks = <&clock 305>, <&clock 2>; - clock-names = "phy", "ref"; - #phy-cells = <1>; - samsung,sysreg-phandle = <&sys_reg>; - samsung,pmureg-phandle = <&pmu_reg>; -}; - -Then the PHY can be used in other nodes such as: - -phy-consumer@12340000 { - phys = <&usbphy 2>; - phy-names = "phy"; -}; - -Refer to DT bindings documentation of particular PHY consumer devices for more -information about required PHYs and the way of specification. - Samsung SATA PHY Controller --------------------------- diff --git a/MAINTAINERS b/MAINTAINERS index ddcee331dc09..46f6ced8370a 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -17168,7 +17168,7 @@ SAMSUNG USB2 PHY DRIVER M: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx> L: linux-kernel@xxxxxxxxxxxxxxx S: Supported -F: Documentation/devicetree/bindings/phy/samsung-phy.txt +F: Documentation/devicetree/bindings/phy/samsung,usb2-phy.yaml F: Documentation/driver-api/phy/samsung-usb2.rst F: drivers/phy/samsung/phy-exynos4210-usb2.c F: drivers/phy/samsung/phy-exynos4x12-usb2.c -- 2.32.0
