DRA829V: EXTINTn as a GPIO pin

Hi Kevin,

Few questions:

1) Are you using a custom board or standard TI TDA4 EVM board?
2) What is the issue that you are facing?
3) Can you share the changes you have done to enable GPIO0_0.

The pinmux tool: https://dev.ti.com/sysconfig/?fromPinmux=true#/

Output for configuring gpio0_0 is:

&main_pmx0 {
	mygpio1_pins_default: mygpio1_pins_default {
		pinctrl-single,pins = <
			J721E_IOPAD(0x0, PIN_INPUT, 7) /* (AC18) EXTINTn.GPIO0_0 */
		>;
	};

};

If you are using the SDK by default this is configured in gpio0_0 & used for SWITCH10 on the board.

        gpio_keys: gpio-keys {
                compatible = "gpio-keys";
                autorepeat;
                pinctrl-names = "default";
                pinctrl-0 = <&sw10_button_pins_default &sw11_button_pins_default>;

                sw10: sw10 {
                        label = "GPIO Key USER1";
                        linux,code = <BTN_0>;
                        gpios = <&main_gpio0 0 GPIO_ACTIVE_LOW>;
                };

File: arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts

The GPIO0_0 is working perfectly fine. You can press SW10 i.e switch 10 if you are using TDA4 EVM
& you can see that gpio interrupts are firing.

Let me know if you have all the questions answered.

Best Regards,
Keerthy