mirror of
https://github.com/torvalds/linux.git
synced 2024-12-11 13:41:55 +00:00
96e9dd55eb
Introduce a new binding with its documentation for Spreadtrum clock sub-framework. Signed-off-by: Chunyan Zhang <chunyan.zhang@spreadtrum.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
64 lines
1.7 KiB
Plaintext
64 lines
1.7 KiB
Plaintext
Spreadtrum Clock Binding
|
|
------------------------
|
|
|
|
Required properties:
|
|
- compatible: should contain the following compatible strings:
|
|
- "sprd,sc9860-pmu-gate"
|
|
- "sprd,sc9860-pll"
|
|
- "sprd,sc9860-ap-clk"
|
|
- "sprd,sc9860-aon-prediv"
|
|
- "sprd,sc9860-apahb-gate"
|
|
- "sprd,sc9860-aon-gate"
|
|
- "sprd,sc9860-aonsecure-clk"
|
|
- "sprd,sc9860-agcp-gate"
|
|
- "sprd,sc9860-gpu-clk"
|
|
- "sprd,sc9860-vsp-clk"
|
|
- "sprd,sc9860-vsp-gate"
|
|
- "sprd,sc9860-cam-clk"
|
|
- "sprd,sc9860-cam-gate"
|
|
- "sprd,sc9860-disp-clk"
|
|
- "sprd,sc9860-disp-gate"
|
|
- "sprd,sc9860-apapb-gate"
|
|
|
|
- #clock-cells: must be 1
|
|
|
|
- clocks : Should be the input parent clock(s) phandle for the clock, this
|
|
property here just simply shows which clock group the clocks'
|
|
parents are in, since each clk node would represent many clocks
|
|
which are defined in the driver. The detailed dependency
|
|
relationship (i.e. how many parents and which are the parents)
|
|
are implemented in driver code.
|
|
|
|
Optional properties:
|
|
|
|
- reg: Contain the registers base address and length. It must be configured
|
|
only if no 'sprd,syscon' under the node.
|
|
|
|
- sprd,syscon: phandle to the syscon which is in the same address area with
|
|
the clock, and so we can get regmap for the clocks from the
|
|
syscon device.
|
|
|
|
Example:
|
|
|
|
pmu_gate: pmu-gate {
|
|
compatible = "sprd,sc9860-pmu-gate";
|
|
sprd,syscon = <&pmu_regs>;
|
|
clocks = <&ext_26m>;
|
|
#clock-cells = <1>;
|
|
};
|
|
|
|
pll: pll {
|
|
compatible = "sprd,sc9860-pll";
|
|
sprd,syscon = <&ana_regs>;
|
|
clocks = <&pmu_gate 0>;
|
|
#clock-cells = <1>;
|
|
};
|
|
|
|
ap_clk: clock-controller@20000000 {
|
|
compatible = "sprd,sc9860-ap-clk";
|
|
reg = <0 0x20000000 0 0x400>;
|
|
clocks = <&ext_26m>, <&pll 0>,
|
|
<&pmu_gate 0>;
|
|
#clock-cells = <1>;
|
|
};
|