From: Ramuthevar Vadivel Murugan <vadivel.muruganx.ramuthevar@xxxxxxxxxxxxxxx> Add a YAML schema to use the host controller driver with the eMMC PHY on Intel's Lightning Mountain SoC. Signed-off-by: Ramuthevar Vadivel Murugan <vadivel.muruganx.ramuthevar@xxxxxxxxxxxxxxx> --- changes in v2: As per Rob Herring review comments, the following updates - change GPL-2.0 -> (GPL-2.0-only OR BSD-2-Clause) - filename is the compatible string plus .yaml - LGM: Lightning Mountain - update maintainer - add intel,syscon under property list - keep one example instead of two --- .../bindings/phy/intel,lgm-emmc-phy.yaml | 72 ++++++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml diff --git a/Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml b/Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml new file mode 100644 index 000000000000..ec177573aca6 --- /dev/null +++ b/Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml @@ -0,0 +1,72 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/phy/intel,lgm-emmc-phy.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Intel Lightning Mountain(LGM) eMMC PHY Device Tree Bindings + +maintainers: + - Ramuthevar Vadivel Murugan <vadivel.muruganx.ramuthevar@xxxxxxxxxxxxxxx> + + +description: + - Add a new compatible to use the host controller driver with the + eMMC PHY on Intel's Lightning Mountain SoC. + +$ref: /schemas/types.yaml#definitions/phandle + description: + - It also requires a "syscon" node with compatible = "intel,lgm-chiptop", + "syscon" to access the eMMC PHY register. + +properties: + "#phy-cells": + const: 0 + + compatible: + const: intel,lgm-emmc-phy + + reg: + maxItems: 1 + + intel,syscon: + items: + - description: + - | + e-MMC phy module should include the following properties + * reg, Access the e-MMC, get the base address from syscon. + * reset, reset the e-MMC module. + + clocks: + items: + - description: e-MMC phy module clock + + clock-names: + items: + - const: emmcclk + + resets: + maxItems: 1 + +required: + - "#phy-cells" + - compatible + - reg + - clocks + - clock-names + - resets + +additionalProperties: false + +examples: + - | + emmc_phy: emmc_phy { + compatible = "intel,lgm-emmc-phy"; + reg = <0xe0020000 0x100>; + intel,syscon = <&sysconf>; + clocks = <&emmc>; + clock-names = "emmcclk"; + #phy-cells = <0>; + }; + +... -- 2.11.0
