Hi,
I’m trying to read some sensors through the I2C bus.
In order to power them up, the Jetson has to provide 3v3, 2v8, and 1v8 voltages. But I’m not really sure how to enable these regulators. For the 2v8, I added “regulator-always-on” to the node in the tegra234-p3737-fixed-regulator.dtsi, like this:
p3737_avdd_cam_2v8: regulator@106 {
compatible = "regulator-fixed";
reg = <106>;
regulator-name = "avdd-cam-2v8";
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
vin-supply = <&p3737_vdd_3v3_sys>;
gpio = <&tegra_main_gpio TEGRA234_MAIN_GPIO(Q, 1) 0>;
regulator-always-on;//Added to turn on the regulator
enable-active-high;
};
But for the 1v8 and 3v3 regulators I’m not really sure how to enable them (I read that they are always on, but I just want to make sure that I’m right).
Best,