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发表于 2016-8-30 10:16:27
楼主
pwm_regulator {
compatible = "rockchip_pwm_regulator";
pwms = <&pwm1 0 2000>;
rockchip,pwm_id= <1>;
rockchip,pwm_voltage_map= <925000 950000 975000 1000000 1025000 1050000 1075000 1100000 1125000 1150000 1175000 1200000 1225000 1250000 1275000 1300000 1325000 1350000 1375000 1400000>;
rockchip,pwm_voltage= <1100000>;
rockchip,pwm_min_voltage= <925000>;
rockchip,pwm_max_voltage= <1400000>;
rockchip,pwm_suspend_voltage= <950000>;
rockchip,pwm_coefficient= <475>;
regulators {
#address-cells = <1>;
#size-cells = <0>;
pwm_reg0: regulator@0 {
regulator-compatible = "pwm_dcdc1";
regulator-name= "vdd_logic";
regulator-min-microvolt = <925000>;
regulator-max-microvolt = <1400000>;
regulator-always-on;
regulator-boot-on;
};
};
};
dts中有这么一段,好像已经占用了pwm1,所以申请会失败,
但是这个是用来做电源控制吗,对应的硬件设备是什么? |
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