> diff --git a/Documentation/devicetree/bindings/clock/armada3700-uart-clock.yaml b/Documentation/devicetree/bindings/clock/armada3700-uart-clock.yaml > new file mode 100644 > index 000000000000..5ef04f3affda > --- /dev/null > +++ b/Documentation/devicetree/bindings/clock/armada3700-uart-clock.yaml > @@ -0,0 +1,49 @@ > +# SPDX-License-Identifier: GPL-2.0 > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/clock/marvell,armada-3700-uart-clock# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > +title: Marvell Armada 3720 UART clocks Please add a newline here > +properties: > + compatible: > + const: marvell,armada-3700-uart-clock Please add a newline here > + reg: > + items: > + - description: UART Clock Control Register > + - description: UART 2 Baud Rate Divisor Register Please add a newline here > + clocks: > + description: | > + List of parent clocks suitable for UART from following set: > + "TBG-A-P", "TBG-B-P", "TBG-A-S", "TBG-B-S", "xtal" > + UART clock can use one from this set and when more are provided > + then kernel would choose and configure the most suitable one. > + It is suggest to specify at least one TBG clock to achieve > + baudrates above 230400 and also to specify clock which bootloader > + used for UART (most probably xtal) for smooth boot log on UART. Please use items and const like clock-names for the clocks property. The description makes me feel like the DT is configuring the choices available. Ideally, the clocks and clock-names properties are fixed in length and never change unless the compatible changes. Please add a newline here > + clock-names: > + items: > + - const: TBG-A-P > + - const: TBG-B-P > + - const: TBG-A-S > + - const: TBG-B-S > + - const: xtal > + minItems: 1 > + maxItems: 5 Please add a newline here > + '#clock-cells': > + const: 1 Please add a newline here > +required: > + - compatible > + - reg > + - clocks > + - clock-names > + - '#clock-cells' Please add a newline here > +additionalProperties: false Please add a newline here > +examples: > + - | > + uartclk: uartclk@12000 { > + compatible = "marvell,armada-3700-uart-clock"; > + reg = <0x12010 0x4>, <0x12210 0x4>; > + clocks = <&tbg 0>, <&tbg 1>, <&tbg 2>, <&tbg 3>, <&xtalclk>; > + clock-names = "TBG-A-P", "TBG-B-P", "TBG-A-S", "TBG-B-S", "xtal"; > + #clock-cells = <1>; > + };
