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cpufreq-spear.txt

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linux-6.19.14/Documentation/devicetree/bindings/cpufreq/cpufreq-spear.txt PLAIN TEXT
 1SPEAr cpufreq driver
 2-------------------
 3
 4SPEAr SoC cpufreq driver for CPU frequency scaling.
 5It supports both uniprocessor (UP) and symmetric multiprocessor (SMP) systems
 6which share clock across all CPUs.
 7
 8Required properties:
 9- cpufreq_tbl: Table of frequencies CPU could be transitioned into, in the
10  increasing order.
11
12Optional properties:
13- clock-latency: Specify the possible maximum transition latency for clock, in
14  unit of nanoseconds.
15
16Both required and optional properties listed above must be defined under node
17/cpus/cpu@0.
18
19Examples:
20--------
21cpus {
22
23	<...>
24
25	cpu@0 {
26		compatible = "arm,cortex-a9";
27		reg = <0>;
28
29		<...>
30
31		cpufreq_tbl = < 166000
32				200000
33				250000
34				300000
35				400000
36				500000
37				600000 >;
38	};
39
40	<...>
41
42};
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