Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame^] | 1 | Spreadtrum SC9860 Clock Binding |
| 2 | ------------------------ |
| 3 | |
| 4 | Required properties: |
| 5 | - compatible: should contain the following compatible strings: |
| 6 | - "sprd,sc9860-pmu-gate" |
| 7 | - "sprd,sc9860-pll" |
| 8 | - "sprd,sc9860-ap-clk" |
| 9 | - "sprd,sc9860-aon-prediv" |
| 10 | - "sprd,sc9860-apahb-gate" |
| 11 | - "sprd,sc9860-aon-gate" |
| 12 | - "sprd,sc9860-aonsecure-clk" |
| 13 | - "sprd,sc9860-agcp-gate" |
| 14 | - "sprd,sc9860-gpu-clk" |
| 15 | - "sprd,sc9860-vsp-clk" |
| 16 | - "sprd,sc9860-vsp-gate" |
| 17 | - "sprd,sc9860-cam-clk" |
| 18 | - "sprd,sc9860-cam-gate" |
| 19 | - "sprd,sc9860-disp-clk" |
| 20 | - "sprd,sc9860-disp-gate" |
| 21 | - "sprd,sc9860-apapb-gate" |
| 22 | |
| 23 | - #clock-cells: must be 1 |
| 24 | |
| 25 | - clocks : Should be the input parent clock(s) phandle for the clock, this |
| 26 | property here just simply shows which clock group the clocks' |
| 27 | parents are in, since each clk node would represent many clocks |
| 28 | which are defined in the driver. The detailed dependency |
| 29 | relationship (i.e. how many parents and which are the parents) |
| 30 | are implemented in driver code. |
| 31 | |
| 32 | Optional properties: |
| 33 | |
| 34 | - reg: Contain the registers base address and length. It must be configured |
| 35 | only if no 'sprd,syscon' under the node. |
| 36 | |
| 37 | - sprd,syscon: phandle to the syscon which is in the same address area with |
| 38 | the clock, and so we can get regmap for the clocks from the |
| 39 | syscon device. |
| 40 | |
| 41 | Example: |
| 42 | |
| 43 | pmu_gate: pmu-gate { |
| 44 | compatible = "sprd,sc9860-pmu-gate"; |
| 45 | sprd,syscon = <&pmu_regs>; |
| 46 | clocks = <&ext_26m>; |
| 47 | #clock-cells = <1>; |
| 48 | }; |
| 49 | |
| 50 | pll: pll { |
| 51 | compatible = "sprd,sc9860-pll"; |
| 52 | sprd,syscon = <&ana_regs>; |
| 53 | clocks = <&pmu_gate 0>; |
| 54 | #clock-cells = <1>; |
| 55 | }; |
| 56 | |
| 57 | ap_clk: clock-controller@20000000 { |
| 58 | compatible = "sprd,sc9860-ap-clk"; |
| 59 | reg = <0 0x20000000 0 0x400>; |
| 60 | clocks = <&ext_26m>, <&pll 0>, |
| 61 | <&pmu_gate 0>; |
| 62 | #clock-cells = <1>; |
| 63 | }; |