Add devicetree binding document for the Loongson-1 clock driver. Signed-off-by: Keguang Zhang <keguang.zhang@xxxxxxxxx> --- .../bindings/clock/loongson,ls1x-clk.yaml | 81 +++++++++++++++++++ 1 file changed, 81 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/loongson,ls1x-clk.yaml diff --git a/Documentation/devicetree/bindings/clock/loongson,ls1x-clk.yaml b/Documentation/devicetree/bindings/clock/loongson,ls1x-clk.yaml new file mode 100644 index 000000000000..4709c6757f1e --- /dev/null +++ b/Documentation/devicetree/bindings/clock/loongson,ls1x-clk.yaml @@ -0,0 +1,81 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/loongson,ls1x-clk.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Loongson-1 Clock Controller + +maintainers: + - Keguang Zhang <keguang.zhang@xxxxxxxxx> + +properties: + "#clock-cells": + const: 0 + + compatible: + enum: + - loongson,ls1b-clk-pll + - loongson,ls1b-clk-cpu + - loongson,ls1b-clk-ahb + - loongson,ls1c-clk-pll + - loongson,ls1c-clk-cpu + - loongson,ls1c-clk-ahb + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + +required: + - "#clock-cells" + - compatible + - clocks + - reg + +additionalProperties: false + +examples: + - | + clocks { + #address-cells = <1>; + #size-cells = <1>; + ranges; + + xtal: xtal { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <33000000>; + }; + + pll: pll@1fe78030 { + compatible = "loongson,ls1b-clk-pll"; + #clock-cells = <0>; + clocks = <&xtal>; + reg = <0x1fe78030 0x4>; + }; + + cpu_clk: cpu_clk@1fe78034 { + compatible = "loongson,ls1b-clk-cpu"; + #clock-cells = <0>; + clocks = <&pll>; + reg = <0x1fe78034 0x4>; + }; + + ahb_clk: ahb_clk@1fe78034 { + compatible = "loongson,ls1b-clk-ahb"; + #clock-cells = <0>; + clocks = <&pll>; + reg = <0x1fe78034 0x4>; + }; + + apb_clk: apb_clk { + compatible = "fixed-factor-clock"; + #clock-cells = <0>; + clocks = <&ahb_clk>; + clock-div = <2>; + clock-mult = <1>; + }; + }; +... -- 2.34.1
