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Tegra124 CPU frequency scaling driver bindings
----------------------------------------------
Both required and optional properties listed below must be defined
under node /cpus/cpu@0.
Required properties:
- clocks: Must contain an entry for each entry in clock-names.
See ../clocks/clock-bindings.txt for details.
- clock-names: Must include the following entries:
- cpu_g: Clock mux for the fast CPU cluster.
- cpu_lp: Clock mux for the low-power CPU cluster.
- pll_x: Fast PLL clocksource.
- pll_p: Auxiliary PLL used during fast PLL rate changes.
- dfll: Fast DFLL clocksource that also automatically scales CPU voltage.
- vdd-cpu-supply: Regulator for CPU voltage
Optional properties:
- clock-latency: Specify the possible maximum transition latency for clock,
in unit of nanoseconds.
Example:
--------
cpus {
#address-cells = <1>;
#size-cells = <0>;
cpu@0 {
device_type = "cpu";
compatible = "arm,cortex-a15";
reg = <0>;
clocks = <&tegra_car TEGRA124_CLK_CCLK_G>,
<&tegra_car TEGRA124_CLK_CCLK_LP>,
<&tegra_car TEGRA124_CLK_PLL_X>,
<&tegra_car TEGRA124_CLK_PLL_P>,
<&dfll>;
clock-names = "cpu_g", "cpu_lp", "pll_x", "pll_p", "dfll";
clock-latency = <300000>;
vdd-cpu-supply: <&vdd_cpu>;
};
<...>
};
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