Add the device tree bindings for the Realtek DHC(Digital Home Center) RTD SoCs PCIe PHY. Signed-off-by: Tzuyi Chang <tychang@xxxxxxxxxxx> --- .../bindings/phy/realtek,rtd-pcie-phy.yaml | 61 +++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 Documentation/devicetree/bindings/phy/realtek,rtd-pcie-phy.yaml diff --git a/Documentation/devicetree/bindings/phy/realtek,rtd-pcie-phy.yaml b/Documentation/devicetree/bindings/phy/realtek,rtd-pcie-phy.yaml new file mode 100644 index 000000000000..44ff23f698e6 --- /dev/null +++ b/Documentation/devicetree/bindings/phy/realtek,rtd-pcie-phy.yaml @@ -0,0 +1,61 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright 2023 Realtek Semiconductor Corporation +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/phy/realtek,rtd-pcie-phy.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Realtek DHC PCIe PHY + +maintainers: + - Tzuyi Chang <tychang@xxxxxxxxxxx> + +description: + Realtek PCIe PHY supports the DHC(Digital Home Center) RTD series SoCs. + The PCIe PHY driver is designed to support physical layer functionality + of the PCIe controller. + +properties: + compatible: + enum: + - realtek,rtd1319-pcie0-phy + - realtek,rtd1319-pcie1-phy + - realtek,rtd1319-pcie2-phy + - realtek,rtd1619b-pcie1-phy + - realtek,rtd1619b-pcie2-phy + - realtek,rtd1319d-pcie1-phy + - realtek,rtd1315e-pcie1-phy + + "#phy-cells": + const: 0 + + nvmem-cells: + maxItems: 1 + description: + Phandle to nvmem cell that contains 'Tx swing trim' + tuning parameter value for PCIe phy. + + nvmem-cell-names: + items: + - const: tx_swing_trim + + realtek,pcie-syscon: + $ref: /schemas/types.yaml#/definitions/phandle + description: phandle of syscon used to control PCIe MDIO register. + +required: + - compatible + - realtek,pcie-syscon + - "#phy-cells" + +additionalProperties: false + +examples: + - | + pcie1_phy { + compatible = "realtek,rtd1319d-pcie1-phy"; + realtek,pcie-syscon = <&pcie1>; + #phy-cells = <0>; + nvmem-cells = <&otp_pcie_tx_swing_trim>; + nvmem-cell-names = "tx_swing_trim"; + }; -- 2.43.0
