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Signed-off-by: Chunyan Zhang --- .../bindings/clock/sprd,ums512-clk.yaml | 106 ++++++++++++++++++ 1 file changed, 106 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/sprd,ums512-clk.yaml diff --git a/Documentation/devicetree/bindings/clock/sprd,ums512-clk.yaml b/Documentation/devicetree/bindings/clock/sprd,ums512-clk.yaml new file mode 100644 index 000000000000..be3c37180279 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/sprd,ums512-clk.yaml @@ -0,0 +1,106 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright 2019-2021 Unisoc Inc. +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/clock/sprd,ums512-clk.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: UMS512 Clock Control Unit Device Tree Bindings + +maintainers: + - Orson Zhai + - Baolin Wang + - Chunyan Zhang + +properties: + "#clock-cells": + const: 1 + + compatible: + enum: + - sprd,ums512-apahb-gate + - sprd,ums512-ap-clk + - sprd,ums512-aonapb-clk + - sprd,ums512-pmu-gate + - sprd,ums512-g0-pll + - sprd,ums512-g2-pll + - sprd,ums512-g3-pll + - sprd,ums512-gc-pll + - sprd,ums512-aon-gate + - sprd,ums512-audcpapb-gate + - sprd,ums512-audcpahb-gate + - sprd,ums512-gpu-clk + - sprd,ums512-mm-clk + - sprd,ums512-mm-gate-clk + - sprd,ums512-apapb-gate + + clocks: + minItems: 1 + maxItems: 4 + description: | + The input parent clock(s) phandle for this clock, only list fixed + clocks which are declared in devicetree. + + clock-names: + minItems: 1 + maxItems: 4 + items: + - const: ext-26m + - const: ext-32k + - const: ext-4m + - const: rco-100m + + reg: + maxItems: 1 + +required: + - compatible + - '#clock-cells' + +if: + properties: + compatible: + enum: + - sprd,ums512-ap-clk + - sprd,ums512-aonapb-clk + - sprd,ums512-mm-clk +then: + required: + - reg + +else: + description: | + Other UMS512 clock nodes should be the child of a syscon node in + which compatible string should be: + "sprd,ums512-glbregs", "syscon", "simple-mfd" + + The 'reg' property for the clock node is also required if there is a sub + range of registers for the clocks. + +additionalProperties: false + +examples: + - | + ap_clk: clock-controller@20200000 { + compatible = "sprd,ums512-ap-clk"; + reg = <0x20200000 0x1000>; + clocks = <&ext_26m>; + clock-names = "ext-26m"; + #clock-cells = <1>; + }; + + - | + ap_apb_regs: syscon@71000000 { + compatible = "sprd,ums512-glbregs", "syscon", "simple-mfd"; + reg = <0x71000000 0x3000>; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0 0x71000000 0x3000>; + + apahb_gate: clock-controller@0 { + compatible = "sprd,ums512-apahb-gate"; + reg = <0x0 0x2000>; + #clock-cells = <1>; + }; + }; +... -- 2.25.1