dt-bindings: clock: sprd,sc9860-clk: convert to YAML
Convert the Spreadtrum SC9860 clock bindings to DT schema. Signed-off-by: Stanislav Jakubek <stano.jakubek@gmail.com> Link: https://lore.kernel.org/r/ZobghvwZAyMjl4eB@standask-GA-A55M-S2HP Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Stanislav Jakubek
Stephen Boyd
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commit
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Spreadtrum SC9860 Clock Binding
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------------------------
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Required properties:
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- compatible: should contain the following compatible strings:
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- "sprd,sc9860-pmu-gate"
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- "sprd,sc9860-pll"
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- "sprd,sc9860-ap-clk"
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- "sprd,sc9860-aon-prediv"
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- "sprd,sc9860-apahb-gate"
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- "sprd,sc9860-aon-gate"
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- "sprd,sc9860-aonsecure-clk"
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- "sprd,sc9860-agcp-gate"
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- "sprd,sc9860-gpu-clk"
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- "sprd,sc9860-vsp-clk"
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- "sprd,sc9860-vsp-gate"
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- "sprd,sc9860-cam-clk"
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- "sprd,sc9860-cam-gate"
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- "sprd,sc9860-disp-clk"
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- "sprd,sc9860-disp-gate"
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- "sprd,sc9860-apapb-gate"
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- #clock-cells: must be 1
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- clocks : Should be the input parent clock(s) phandle for the clock, this
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property here just simply shows which clock group the clocks'
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parents are in, since each clk node would represent many clocks
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which are defined in the driver. The detailed dependency
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relationship (i.e. how many parents and which are the parents)
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are implemented in driver code.
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Optional properties:
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- reg: Contain the registers base address and length. It must be configured
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only if no 'sprd,syscon' under the node.
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- sprd,syscon: phandle to the syscon which is in the same address area with
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the clock, and so we can get regmap for the clocks from the
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syscon device.
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Example:
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pmu_gate: pmu-gate {
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compatible = "sprd,sc9860-pmu-gate";
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sprd,syscon = <&pmu_regs>;
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clocks = <&ext_26m>;
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#clock-cells = <1>;
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};
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pll: pll {
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compatible = "sprd,sc9860-pll";
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sprd,syscon = <&ana_regs>;
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clocks = <&pmu_gate 0>;
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#clock-cells = <1>;
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};
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ap_clk: clock-controller@20000000 {
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compatible = "sprd,sc9860-ap-clk";
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reg = <0 0x20000000 0 0x400>;
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clocks = <&ext_26m>, <&pll 0>,
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<&pmu_gate 0>;
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#clock-cells = <1>;
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};
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159
Documentation/devicetree/bindings/clock/sprd,sc9860-clk.yaml
Normal file
159
Documentation/devicetree/bindings/clock/sprd,sc9860-clk.yaml
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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/clock/sprd,sc9860-clk.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Spreadtrum SC9860 clock
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maintainers:
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- Orson Zhai <orsonzhai@gmail.com>
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- Baolin Wang <baolin.wang7@gmail.com>
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- Chunyan Zhang <zhang.lyra@gmail.com>
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properties:
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compatible:
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enum:
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- sprd,sc9860-agcp-gate
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- sprd,sc9860-aonsecure-clk
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- sprd,sc9860-aon-gate
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- sprd,sc9860-aon-prediv
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- sprd,sc9860-apahb-gate
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- sprd,sc9860-apapb-gate
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- sprd,sc9860-ap-clk
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- sprd,sc9860-cam-clk
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- sprd,sc9860-cam-gate
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- sprd,sc9860-disp-clk
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- sprd,sc9860-disp-gate
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- sprd,sc9860-gpu-clk
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- sprd,sc9860-pll
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- sprd,sc9860-pmu-gate
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- sprd,sc9860-vsp-clk
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- sprd,sc9860-vsp-gate
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reg:
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maxItems: 1
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clocks:
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minItems: 1
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maxItems: 3
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'#clock-cells':
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const: 1
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sprd,syscon:
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$ref: /schemas/types.yaml#/definitions/phandle
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description:
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phandle to the syscon which is in the same address area with the
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clock, and so we can get regmap for the clocks from the syscon device
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required:
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- compatible
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- clocks
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- '#clock-cells'
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allOf:
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- if:
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properties:
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compatible:
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contains:
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enum:
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- sprd,sc9860-agcp-gate
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- sprd,sc9860-aon-gate
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- sprd,sc9860-apahb-gate
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- sprd,sc9860-apapb-gate
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- sprd,sc9860-cam-gate
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- sprd,sc9860-disp-gate
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- sprd,sc9860-gpu-clk
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- sprd,sc9860-pll
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- sprd,sc9860-pmu-gate
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- sprd,sc9860-vsp-gate
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then:
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properties:
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clocks:
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maxItems: 1
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- if:
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properties:
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compatible:
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contains:
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enum:
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- sprd,sc9860-aonsecure-clk
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- sprd,sc9860-cam-clk
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- sprd,sc9860-disp-clk
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- sprd,sc9860-vsp-clk
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then:
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properties:
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clocks:
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minItems: 2
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maxItems: 2
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- if:
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properties:
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compatible:
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contains:
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enum:
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- sprd,sc9860-aon-prediv
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- sprd,sc9860-ap-clk
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then:
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properties:
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clocks:
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minItems: 3
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- if:
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properties:
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compatible:
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contains:
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enum:
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- sprd,sc9860-aonsecure-clk
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- sprd,sc9860-aon-prediv
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- sprd,sc9860-ap-clk
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- sprd,sc9860-cam-clk
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- sprd,sc9860-disp-clk
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- sprd,sc9860-gpu-clk
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- sprd,sc9860-vsp-clk
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then:
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required:
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- reg
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properties:
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sprd,syscon: false
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- if:
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properties:
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compatible:
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contains:
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enum:
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- sprd,sc9860-agcp-gate
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- sprd,sc9860-aon-gate
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- sprd,sc9860-apahb-gate
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- sprd,sc9860-apapb-gate
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- sprd,sc9860-cam-gate
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- sprd,sc9860-disp-gate
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- sprd,sc9860-pll
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- sprd,sc9860-pmu-gate
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- sprd,sc9860-vsp-gate
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then:
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required:
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- sprd,syscon
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properties:
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reg: false
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additionalProperties: false
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examples:
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- |
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soc {
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#address-cells = <2>;
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#size-cells = <2>;
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pmu-gate {
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compatible = "sprd,sc9860-pmu-gate";
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clocks = <&ext_26m>;
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#clock-cells = <1>;
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sprd,syscon = <&pmu_regs>;
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};
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clock-controller@20000000 {
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compatible = "sprd,sc9860-ap-clk";
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reg = <0 0x20000000 0 0x400>;
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clocks = <&ext_26m>, <&pll 0>, <&pmu_gate 0>;
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#clock-cells = <1>;
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};
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};
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...
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