IRQ Register error while interfacing bmi270 on i2c0 of rzg2n-Kernel-5.10.158

Hi Nagaraja,
The pins you are using for IRQ are GPIO2_04 only. Also, you are using the same pin for GPIO.
Please use a different one.
Kind Regards.

Hi,

Thanks for the reply,

Acutally My  dts entries line below,

&i2c0 {
        clock-frequency = <400000>;
        status = "okay";
        bmi2xy@69 {
                label = "GPIO2_04 Interrupt";
                compatible = "bosch,bmi2xy";
                reg = <0x69>;
                interrupt-parent = <&intc_ex>; // I can use  iinterrupt-parent = <&gpio2>;
                interrupts = <4 IRQ_TYPE_EDGE_FALLING>;
                bmi270,gpio_irq = <&gpio2 4 0>;
        };
};

And schematic is :

When I do insert the modules it is saying probe is sucess but not getting any intestrrupt:

GPIO2_04 INT_ACC

GPIO2_03 INT_GYRO.

root@hihope-rzg2n:~/old# insmod bmi270_i2c_driver.ko                                                                                                                  
[  145.241222]
[  145.241222] [I]6<BS_LOG><bmi2xy_probe><3298>bmi2xy sensor probe
[  145.248896] input: bmi2xy as /devices/virtual/input/input1
[  145.267183]
[  145.267183] [D]7<BS_LOG><bmi2xy_request_irq><3232>Interrupt mapped to GPIO Pin: 333
[  145.276514]
[  145.276514] [I]6<BS_LOG><bmi2xy_probe><3328>sensor bmi2xy probed successfully
root@hihope-rzg2n:~/old# [  316.384200] EXT4-fs (mmcblk1p2): error count since last fsck:

only problem I have is  not able to get interrupts for the device.

311:          0          0  gpio-rcar   3 Edge      ee140000.mmc cd
313:          0          0     GIC-0 403 Level     ec500000.sound
323:          0          0     GIC-0 385 Level     ec500000.sound
332:          0          0  gpio-rcar  12 Edge      ee100000.mmc cd
333:          0          0      irqc   4 Edge      bmi2xy
IPI0:      8440      22158       Rescheduling interrupts
IPI1:       315        260       Function call interrupts
IPI2:         0          0       CPU stop interrupts
IPI3:         0          0       CPU stop (for crash dump) interrupts
IPI4:         0      25343       Timer broadcast interrupts
IPI5:         1          9       IRQ work interrupts
IPI6:         0          0       CPU wake-up interrupts
Err:          0
root@hihope-rzg2n:~/old#

Please guide is it correct to configure the GPIO2_04 as interrupt like above or something need to be changed

Thanks and Regards,

Nagaraja

Hi,
Please take a look here.
Have you tried to probe with a scope to make sure the interrupt is generated?
Kind Regards.

Hi Tried as given in the document,

     gpio_keys {
       compatible = "gpio-keys";
        pinctrl-names = "default";
   //   pinctrl-0 = <&pinctrl_gpio_keys>;
        key1 {
            label = "GPIO2_04 Interrupt";
            gpios = <&gpio2 4 GPIO_ACTIVE_LOW>;  // GPIO2_04
   //         linux,code = <KEY_ENTER>;           // Example keycode
            interrupt-parent = <&gpio2>;
            interrupts = <4 IRQ_TYPE_EDGE_FALLING>; // Edge type can be rising, falling, or both
        };
    };
};
/*&pinctrl_gpio_keys: gpio_keys_pins {
    pins = "GPIO2_04";
    function = "gpio2";
    bias-pull-up;
};*/

&i2c0 {
        clock-frequency = <400000>;
        status = "okay";
        bmi2xy@69 {
                label = "GPIO2_04 Interrupt";
                compatible = "bosch,bmi2xy";
                reg = <0x69>;
                gpio = <&gpio2 4 GPIO_ACTIVE_LOW>;
                interrupt-parent = <&intc_ex>;
                interrupts = <4 IRQ_TYPE_LEVEL_LOW>;
        //      bmi270,gpio_irq = <&gpio2 68 IRQ_TYPE_LEVEL_LOW>;
        };
};

We are not getting any interrupts. And getting below error:

=============================================

root@hihope-rzg2n:~# insmod bmi270_i2c_driver.ko
[   27.604790]
[   27.604790] [I]6<BS_LOG><bmi2xy_probe><3317>bmi2xy sensor probe
[   27.612464] input: bmi2xy as /devices/virtual/input/input0
[   27.630623]
[   27.630623] [I]6<BS_LOG><bmi2xy_request_irq><3234>client_data->gpio_pin 254
[   27.639186]
[   27.639186] [I]6<BS_LOG><bmi2xy_request_irq><3242>gpio_request_one -517
[   27.647390]
[   27.647390] [I]6<BS_LOG><bmi2xy_request_irq><3244>gpio_direction_input -517
[   27.655936]
[   27.655936] [I]6<BS_LOG><bmi2xy_request_irq><3246>client_data->gpio_irq_2 -22
[   27.664649]
[   27.664649] [E]3<BS_LOG><check_error><60>bmi2xy_request_irq: request IRQ failed with return code: -539
[   27.675529]
[   27.675529] [E]3<BS_LOG><check_error><60>bmi2xy_probe: sensor probe failed with return code: -539
[   27.685997] bmi2xy: probe of 0-0069 failed with error -5
root@hihope-rzg2n:~# [  316.383941] EXT4-fs (mmcblk1p2): error count since last fsck: 3

=========================================================

Is the any ways to set GPIO2_04 as input to make it interrupt pin.

Thanks and regards,

Nagaraja