dt-bindings: phy: meson-g12a-usb3-pcie-phy: convert to yaml

Now that we have the DT validation in place, let's convert the device tree
bindings for the Amlogic G12A USB3 + PCIE Combo PHY over to a YAML schemas.

While the original phy bindings specifies phy-supply as required,
the examples and implementations makes it optional, thus phy-supply
is not present in the properties and required lists.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Neil Armstrong 2019-08-08 10:51:37 +02:00 committed by Rob Herring
parent da86d286cc
commit 87a55485f2
2 changed files with 57 additions and 22 deletions

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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
# Copyright 2019 BayLibre, SAS
%YAML 1.2
---
$id: "http://devicetree.org/schemas/phy/amlogic,meson-g12a-usb3-pcie-phy.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Amlogic G12A USB3 + PCIE Combo PHY
maintainers:
- Neil Armstrong <narmstrong@baylibre.com>
properties:
compatible:
enum:
- amlogic,meson-g12a-usb3-pcie-phy
reg:
maxItems: 1
clocks:
maxItems: 1
clock-names:
items:
- const: ref_clk
resets:
maxItems: 1
reset-names:
items:
- const: phy
"#phy-cells":
const: 1
required:
- compatible
- reg
- clocks
- clock-names
- resets
- reset-names
- "#phy-cells"
examples:
- |
phy@46000 {
compatible = "amlogic,meson-g12a-usb3-pcie-phy";
reg = <0x46000 0x2000>;
clocks = <&ref_clk>;
clock-names = "ref_clk";
resets = <&phy_reset>;
reset-names = "phy";
#phy-cells = <1>;
};

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* Amlogic G12A USB3 + PCIE Combo PHY binding
Required properties:
- compatible: Should be "amlogic,meson-g12a-usb3-pcie-phy"
- #phys-cells: must be 1. The cell number is used to select the phy mode
as defined in <dt-bindings/phy/phy.h> between PHY_TYPE_USB3 and PHY_TYPE_PCIE
- reg: The base address and length of the registers
- clocks: a phandle to the 100MHz reference clock of this PHY
- clock-names: must be "ref_clk"
- resets: phandle to the reset lines for the PHY control
- reset-names: must be "phy"
Example:
usb3_pcie_phy: phy@46000 {
compatible = "amlogic,g12a-usb3-pcie-phy";
reg = <0x0 0x46000 0x0 0x2000>;
clocks = <&clkc CLKID_PCIE_PLL>;
clock-names = "ref_clk";
resets = <&reset RESET_PCIE_PHY>;
reset-names = "phy";
#phy-cells = <1>;
};