AM62P: Where Can I find Hardware irq

Hi Thummala, 

What behavior are you trying to achieve when GPIO1_23_INTn? Can you clarify how you’re planning to use GPIO1_23? Are you attempting to trigger an interrupt that notifies a userspace application, or is this GPIO meant to be managed by a kernel driver for a specific peripheral?

Regards,

Shriya

Hi Shriya,

I want to trigger an interrupt that is handled by the host kernel first and then signaled to a guest running on hypervisor.

Regards,
Vasanth

Hi Shriya,

Thank you for the reply.

I am not using Linux, I have QNXOS running on AM62P EVM board. The issue is I have a microtips-mf10hie panel for which the dts node is defined as:

&main_i2c0 {
#address-cells = <1>;
#size-cells = <0>;

touchscreen@41 {
compatible = "ilitek,ili251x";
reg = <0x41>;
interrupt-parent = <&exp1>;
interrupts = <0 IRQ_TYPE_EDGE_FALLING>;
reset-gpios = <&exp2 20 GPIO_ACTIVE_LOW>;
};
};

and its interrupt parent:

exp1: gpio@22 {
compatible = "ti,tca6424";
reg = <0x22>;
gpio-controller;
#gpio-cells = <2>;
gpio-line-names = "OLDI_INT#", "x8_NAND_DETECT",
"UART1_FET_SEL", "MMC1_SD_EN",
"VPP_EN", "EXP_PS_3V3_EN",
"UART1_FET_BUF_EN", "EXP_HAT_DETECT",
"DSI_GPIO0", "DSI_GPIO1",
"OLDI_EDID", "BT_UART_WAKE_SOC_3V3",
"USB_TYPEA_OC_INDICATION", "CSI_GPIO0",
"CSI_GPIO1", "WLAN_ALERTn",
"HDMI_INTn", "TEST_GPIO2",
"MCASP1_FET_EN", "MCASP1_BUF_BT_EN",
"MCASP1_FET_SEL", "DSI_EDID",
"PD_I2C_IRQ", "IO_EXP_TEST_LED";

interrupt-parent = <&main_gpio1>;
interrupts = <23 IRQ_TYPE_EDGE_FALLING>;
interrupt-controller;
#interrupt-cells = <2>;

pinctrl-names = "default";
pinctrl-0 = <&main_gpio1_ioexp_intr_pins_default>;
bootph-all;
};


I have to pass the same irq it is using from QNXOS to an android host through hypervisor.

Best regards,
Vasanth

Hi Vasanth, 

I am roping in our QNXOS expert for further assistance. 

Regards,

Shriya