standyby mode for input control of transciever

Hi all,

i'am working on can transceiver this is the dts file of rzg2l

in the dts file the standby mode for input control is enabled, but iam not able to find the .c file where they are using the below gpio to control the standby mode can anyone tell me in which .c file it is being controlled

canfd0_en {
gpio-hog;
gpios = <RZG2L_GPIO(42, 2) GPIO_ACTIVE_LOW>;
output-high;
line-name = "canfd0_en";
};

canfd1_en {
gpio-hog;
gpios = <RZG2L_GPIO(42, 3) GPIO_ACTIVE_LOW>;
output-high;
line-name = "canfd1_en";
};

Regards

Tushar