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- ON Semiconductor NCP6335d regulator
- NCP6335d is able to deliver up to 5.0 A, with programmable output voltage from
- 0.6 V to 1.87 V in 10mV steps, with synchronous rectification and automatic PWM/
- PFM transitions, enable pins and power good/fail signaling.
- The NCP6335d interface is via I2C bus.
- Required Properties:
- - compatible: Must be "onnn,ncp6335d-regulator".
- - reg: The device 8-bit I2C address.
- - regulator-min-microvolt: Minimum voltage in microvolts supported by this
- regulator.
- - regulator-max-microvolt: Maximum voltage in microvolts supported by this
- regulator.
- - onnn,min-setpoint: Minimum setpoint voltage in microvolts supported
- by this regulator.
- - onnn,step-size: The step size of the regulator, in uV.
- - onnn,min-slew-ns: Minimum time in ns needed to change voltage by
- one step size. This value corresponds to DVS
- mode bit of 00b in command register.
- - onnn,max-slew-ns: Maximum time in ns needed to change voltage by
- one step size. This value corresponds to DVS
- mode bit of 11b in command register.
- - onnn,vsel: Working vsel register. Supported value are 0
- or 1.
- - onnn,slew-ns: Time in ns needed to change voltage by one step
- size. Supported value are 333, 666, 1333, 2666.
- Optional Properties:
- - onnn,discharge-enable: Present: discharge enabled.
- Not Present: discharge disabled.
- - onnn,restore-reg: Present: Restore vsel register from backup register.
- Not Present: No restore.
- - onnn,vsel-gpio: Present: GPIO connects to the VSEL pin and set the
- VSEL pin according to device tree flag.
- Not Present: No GPIO is connected to vsel pin.
- - onnn,sleep-enable: Present: Forced in sleep mode when EN and VSEL
- pins are low.
- Not Present: Low quiescent current mode when EN and VSEL
- pins are low.
- - onnn,tlmm-config: Array of 2 elements to indicate the mask value and the value
- to write in the masked bits.
- This property is used to allow the VSEL GPIO to toggle on certain
- Qualcomm processors. If it is not specified, then no register write is required.
- The 2 elements with index[0..1] are:
- [0] => the mask value;
- [1] => the value to write into the masked bits.
- - onnn,mode: A string which specifies the initial mode to use for the regulator.
- Supported values are "pwm" and "auto". PWM mode is more
- robust, but draws more current than auto mode. If this propery
- is not specified, then the regulator will be in the hardware default mode.
- Example:
- i2c_0 {
- ncp6335d-regulator@1c {
- compatible = "onnn,ncp6335d-regulator";
- reg = <0x1c>;
- onnn,vsel = <0>;
- onnn,slew-rate-ns = <2666>;
- onnn,discharge-enable;
- onnn,step-size = <10000>;
- onnn,min-slew-ns = <333>;
- onnn,max-slew-ns = <2666>;
- regulator-min-microvolt = <1050000>;
- regulator-max-microvolt = <1350000>;
- onnn,min-setpoint = <600000>;
- onnn,vsel-gpio = <&msmgpio 2 1>;
- };
- };
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