Other Parts Discussed in Thread: AM3351
AM3351 Custom Board
SDK 8.02
I am trying to define GPIO interrupts in my DTS but they are not configured after boot. I first define the pin(s) in the pinmux_gpio_pins node, and then define the GPIO in the &gpio2 node with the interrupt_parent and interrupts as seen below.
&am33xx_pinmux {
pinctrl-names = "default";
pinctrl-0 = <&gpio_pins>;
gpio_pins: pinmux_gpio_pins {
pinctrl-single,pins = <
/* gpiochip1: GPIOs 32-63 */
AM33XX_IOPAD(0x878, PIN_INPUT | MUX_MODE7) /* nPFO (V18) gpmc_be1n.gpio1[28]) */
>;
};
};
&gpio1 {
nPFO {
gpio-hog;
gpios = <28 GPIO_ACTIVE_LOW>;
input;
interrupt-parent = <&gpio1>;
interrupts = <60 IRQ_TYPE_LEVEL_LOW>;
};
};
After boot, I `cat /proc/interrupts` but do not see my interrupt.
# cat /proc/interrupts
CPU0
16: 98945 INTC 68 Level clockevent
17: 0 INTC 3 Level arm-pmu
19: 0 INTC 96 Level 44e07000.gpio
20: 404 INTC 72 Level 44e09000.serial
21: 96 INTC 70 Level 44e0b000.i2c
28: 0 INTC 65 Level 48030000.spi
34: 0 INTC 98 Level 4804c000.gpio
35: 14443 INTC 64 Level mmc0
37: 0 INTC 125 Level 481a0000.spi
38: 0 INTC 32 Level 481ac000.gpio
39: 0 INTC 62 Level 481ae000.gpio
40: 0 INTC 111 Level 48310000.rng
42: 261 INTC 41 Level 4a100000.switch
43: 126 INTC 42 Level 4a100000.switch
44: 32 INTC 43 Level 4a100000.switch
45: 4807 INTC 12 Level 49000000.dma_ccint
47: 4 INTC 14 Level 49000000.dma_ccerrint
53: 0 INTC 17 Level 47400000.dma-controller
56: 0 INTC 0 Level tps65218
Err: 0
I expect to see something like
60: 0 4804c000.gpio 28 Edge nPFO
What additional steps are required to configure this interrupt on the GPIO pin?
