The newer Allwinner SoCs feature a bus designed for the PMIC, similar to I2C called RSB. Let's convert the device tree bindings for that bus over to a YAML schemas. Signed-off-by: Maxime Ripard <maxime.ripard@xxxxxxxxxxx> --- .../bindings/bus/allwinner,sun8i-a23-rsb.yaml | 79 +++++++++++++++++++ .../devicetree/bindings/bus/sunxi-rsb.txt | 47 ----------- 2 files changed, 79 insertions(+), 47 deletions(-) create mode 100644 Documentation/devicetree/bindings/bus/allwinner,sun8i-a23-rsb.yaml delete mode 100644 Documentation/devicetree/bindings/bus/sunxi-rsb.txt diff --git a/Documentation/devicetree/bindings/bus/allwinner,sun8i-a23-rsb.yaml b/Documentation/devicetree/bindings/bus/allwinner,sun8i-a23-rsb.yaml new file mode 100644 index 000000000000..fc2f63860cc8 --- /dev/null +++ b/Documentation/devicetree/bindings/bus/allwinner,sun8i-a23-rsb.yaml @@ -0,0 +1,79 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/bus/allwinner,sun8i-a23-rsb.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Allwinner A23 RSB Device Tree Bindings + +maintainers: + - Chen-Yu Tsai <wens@xxxxxxxx> + - Maxime Ripard <maxime.ripard@xxxxxxxxxxx> + +properties: + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + + compatible: + oneOf: + - const: allwinner,sun8i-a23-rsb + - items: + - const: allwinner,sun8i-a83t-rsb + - const: allwinner,sun8i-a23-rsb + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 1 + + resets: + maxItems: 1 + + clock-frequency: + minimum: 1 + maximum: 20000000 + +patternProperties: + "^.*@[0-9a-fA-F]+$": + properties: + reg: + maxItems: 1 + + required: + - reg + +required: + - compatible + - reg + - interrupts + - clocks + - resets + +examples: + - | + rsb@1f03400 { + compatible = "allwinner,sun8i-a23-rsb"; + reg = <0x01f03400 0x400>; + interrupts = <0 39 4>; + clocks = <&apb0_gates 3>; + clock-frequency = <3000000>; + resets = <&apb0_rst 3>; + #address-cells = <1>; + #size-cells = <0>; + + pmic@3e3 { + compatible = "..."; + reg = <0x3e3>; + + /* ... */ + }; + }; + +additionalProperties: false diff --git a/Documentation/devicetree/bindings/bus/sunxi-rsb.txt b/Documentation/devicetree/bindings/bus/sunxi-rsb.txt deleted file mode 100644 index eb3ed628c6f1..000000000000 --- a/Documentation/devicetree/bindings/bus/sunxi-rsb.txt +++ /dev/null @@ -1,47 +0,0 @@ -Allwinner Reduced Serial Bus (RSB) controller - -The RSB controller found on later Allwinner SoCs is an SMBus like 2 wire -serial bus with 1 master and up to 15 slaves. It is represented by a node -for the controller itself, and child nodes representing the slave devices. - -Required properties : - - - reg : Offset and length of the register set for the controller. - - compatible : Shall be "allwinner,sun8i-a23-rsb". - - interrupts : The interrupt line associated to the RSB controller. - - clocks : The gate clk associated to the RSB controller. - - resets : The reset line associated to the RSB controller. - - #address-cells : shall be 1 - - #size-cells : shall be 0 - -Optional properties : - - - clock-frequency : Desired RSB bus clock frequency in Hz. Maximum is 20MHz. - If not set this defaults to 3MHz. - -Child nodes: - -An RSB controller node can contain zero or more child nodes representing -slave devices on the bus. Child 'reg' properties should contain the slave -device's hardware address. The hardware address is hardwired in the device, -which can normally be found in the datasheet. - -Example: - - rsb@1f03400 { - compatible = "allwinner,sun8i-a23-rsb"; - reg = <0x01f03400 0x400>; - interrupts = <0 39 4>; - clocks = <&apb0_gates 3>; - clock-frequency = <3000000>; - resets = <&apb0_rst 3>; - #address-cells = <1>; - #size-cells = <0>; - - pmic@3e3 { - compatible = "..."; - reg = <0x3e3>; - - /* ... */ - }; - }; -- 2.21.0
