Jetson nano pin mux as a GPIO

Autonomous Machines Jetson & Embedded Systems Jetson Nano
18

hello babbelal.patel1,

you’ve already have definition, no need to export the pin via sys nodes for the usage.
you may use that in kernel layer to control these pins.

	cam1_pwdn_ps7 {
				nvidia,pins = "cam1_pwdn_ps7";
				nvidia,pull = <TEGRA_PIN_PULL_NONE>;
				nvidia,tristate = <TEGRA_PIN_DISABLE>;
				nvidia,enable-input = <TEGRA_PIN_DISABLE>;
				nvidia,open-drain = <TEGRA_PIN_DISABLE>;
		};

note,
there’re some camera device trees to use this pin as reset-gpio, please check you’ve already exclude those device trees.
for example,

#define CAM1_PWDN		TEGRA_GPIO(S, 7)
...
				reset-gpios = <&gpio CAM1_PWDN GPIO_ACTIVE_HIGH>;

according to device tree configuration. this pin has already configured as output.

	spi1_cs1_pc4 {
				nvidia,pins = "spi1_cs1_pc4";
				nvidia,enable-input = <TEGRA_PIN_DISABLE>;