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TPS voltage regulators
Required properties:
- compatible: Must be "regulator-tps".
- voltage-count: The number of configs used by the voltage selectors. Must be
1 or 2.
- regulator-min-microvolt: The minimum output voltage.
- regulator-max-microvolt: The maximum output voltage.
- en-gpios: The phandle for the enable gpio
- en-delay: Delay in microseconds, if any, after turning on enable gpio. 0 if no
delay.
- dis-delay: Delay in microseconds, if any, before turning off enable gpio. 0 if
no delay.
Optional properties:
- en-pin-only: Set this property if only one gpio (enable gpio) is needed. Any
sub-node will be ignored. The regulator will be a fixed voltage regulator
where the output voltage is the value of regulator-min-microvolt.
Required properties of the sub-nodes:
- voltage-level-uv: Must be 5000000 or 7000000.
- control-gpio-count: the number of gpios involved in controlling the
regulator.
- control-gpios: list of phandles for the control gpio.
- gpio-enable-sequence - gpio indexes for enabling the regulator.
- gpio-enable-delay - delays in microseconds, if any, after turning on
each gpio in gpio-enable-sequence. 0 if no delay.
- gpio-disable-sequence - gpio indexes for disabling the regulator.
- gpio-disable-delay - delays in microseconds, if any, after turning off
each gpio in gpio-disable-sequence. 0 if no delay.
Any property defined as part of the core regulator
binding, defined in regulator.txt, can also be used.
However a fixed voltage regulator is expected to have the
regulator-min-microvolt and regulator-max-microvolt
to be the same.
Example:
regulator@00{
compatible = "regulator-tps";
regulator-name = "ext_boost";
voltage-count = <2>;
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <7000000>;
en-gpios = <&pm8150_gpios 8 GPIO_ACTIVE_HIGH>;
en-delay = <1000>;
dis-delay = <0>;
status = "okay";
usb_5v {
voltage-level-uv = <5000000>;
control-gpio-count = <1>;
control-gpios = <&tlmm 93 GPIO_ACTIVE_HIGH>;
gpio-enable-sequence = <1>;
gpio-enable-delay = <0>;
gpio-disable-sequence = <1>;
gpio-disable-delay = <0>;
};
rtx_7v {
voltage-level-uv = <7000000>;
control-gpio-count = <1>;
control-gpios = <&tlmm 90 GPIO_ACTIVE_HIGH>;
gpio-enable-sequence = <1>;
gpio-enable-delay = <0>;
gpio-disable-sequence = <1>;
gpio-disable-delay = <0>;
};
};
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