kernel Oops for xr819 module

[DeamonYang]

Hello I'm try to use this xr819 driver for allwinner H6. My kernel version is mainline 5.3. I get the dmesg as follows:

[    9.100604] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
[    9.109409] Mem abort info:
[    9.112205]   ESR = 0x96000004
[    9.115262]   Exception class = DABT (current EL), IL = 32 bits
[    9.121180]   SET = 0, FnV = 0
[    9.124234]   EA = 0, S1PTW = 0
[    9.127374] Data abort info:
[    9.130254]   ISV = 0, ISS = 0x00000004
[    9.134088]   CM = 0, WnR = 0
[    9.137059] user pgtable: 4k pages, 48-bit VAs, pgdp=00000000a2fea000
[    9.143497] [0000000000000000] pgd=0000000000000000
[    9.148378] Internal error: Oops: 96000004 [#1] PREEMPT SMP
[    9.153948] Modules linked in: xradio_wlan(+) crct10dif_ce dwmac_sun8i rfkill_gpio ipv6 nf_defrag_ipv6
[    9.163269] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.3.5-g45c72b0-dirty #24
[    9.170489] Hardware name: Tanix TX6 (DT)
[    9.174500] pstate: a0000085 (NzCv daIf -PAN -UAO)
[    9.179303] pc : __wake_up_common+0x60/0x150
[    9.183574] lr : __wake_up_common_lock+0x80/0xc8
[    9.188190] sp : ffff000010003cf0
[    9.191503] x29: ffff000010003cf0 x28: 0000000000000000 
[    9.196816] x27: 0000000000000000 x26: 0000000000000001 
[    9.202129] x25: 0000000000000000 x24: 0000000000000000 
[    9.207441] x23: 0000000000000003 x22: ffff80006315e360 
[    9.212754] x21: ffff000010003da0 x20: 0000000000000001 
[    9.218066] x19: ffff80006315e358 x18: 0000000000000000 
[    9.223379] x17: 0000000000000000 x16: 0000000000000000 
[    9.228691] x15: 0000000000000000 x14: 0000000000000000 
[    9.234003] x13: 0000000000000000 x12: 0000000000000000 
[    9.239316] x11: 0000000000000003 x10: 0000000000000040 
[    9.244628] x9 : ffff000010ec0c10 x8 : ffff000010ec0c08 
[    9.249940] x7 : ffff800064dacbb0 x6 : ffffffffffffffe8 
[    9.255252] x5 : ffff000010003da0 x4 : 0000000000000000 
[    9.260565] x3 : 0000000000000000 x2 : 0000000000000001 
[    9.265877] x1 : 0000000000000003 x0 : 0000000000000000 
[    9.271189] Call trace:
[    9.273640]  __wake_up_common+0x60/0x150
[    9.277564]  __wake_up_common_lock+0x80/0xc8
[    9.281835]  __wake_up+0x14/0x20
[    9.285092]  xradio_irq_handler+0x28/0x30 [xradio_wlan]
[    9.290337]  sdio_irq_handler+0x14/0x28 [xradio_wlan]
[    9.295392]  __handle_irq_event_percpu+0x74/0x188
[    9.300098]  handle_irq_event_percpu+0x34/0x88
[    9.304542]  handle_irq_event+0x48/0x78
[    9.308381]  handle_fasteoi_irq+0xb4/0x188
[    9.312478]  generic_handle_irq+0x24/0x38
[    9.316492]  sunxi_pinctrl_irq_handler+0x120/0x1c0
[    9.321283]  generic_handle_irq+0x24/0x38
[    9.325294]  __handle_domain_irq+0x5c/0xb0
[    9.329392]  gic_handle_irq+0x58/0xa8
[    9.333055]  el1_irq+0xb8/0x180
[    9.336200]  arch_cpu_idle+0x10/0x18
[    9.339780]  do_idle+0x1d0/0x2b0
[    9.343011]  cpu_startup_entry+0x20/0x28
[    9.346937]  rest_init+0xd4/0xe0
[    9.350171]  arch_call_rest_init+0xc/0x14
[    9.354184]  start_kernel+0x460/0x48c
[    9.357851] Code: 2a0103f7 f9002bbb aa0403f9 5280001b (f9400cd3) 
[    9.363950] ---[ end trace 0fb63f6098d742c3 ]---
[    9.368568] Kernel panic - not syncing: Fatal exception in interrupt
[    9.374922] SMP: stopping secondary CPUs
[    9.378846] Kernel Offset: disabled
[    9.382336] CPU features: 0x0002,20002004
[    9.386344] Memory Limit: none
[    9.389403] Rebooting in 10 seconds..

My dts file :

#include "sun50i-h6.dtsi"
#include <dt-bindings/gpio/gpio.h>

/ {
	model = "Tanix TX6";
	compatible = "oranth,tanix-tx6", "allwinner,sun50i-h6";

	aliases {
		ethernet0 = &emac;
		ethernet1 = &xr819wifi;
		serial0 = &uart0;
	};

	vdd_wifi: vdd_wifi {
		compatible = "regulator-fixed";
		regulator-name = "wifi";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
		gpio = <&pio 7 4 GPIO_ACTIVE_HIGH>; //PH4
		startup-delay-us = <70000>;
		enable-active-high;
	};

	
	pwrseq_wifi: pwrseq_wifi@0 {
		compatible = "mmc-pwrseq-simple";
//		pinctrl-names = "default";
//		pinctrl-0 = <&wifi_rst>;
		reset-gpios = <&r_pio 1 3 GPIO_ACTIVE_LOW>; //PM3
		post-power-on-delay-ms = <50>;
	};
	
};



&mmc1 {
//	pinctrl-names = "default";
//	pinctrl-0 = <&mmc1_pins>;
	vqmmc-supply = <&vdd_wifi>;
	vmmc-supply = <&reg_vcc3v3>;
	mmc-pwrseq = <&pwrseq_wifi>;
	bus-width = <4>;
	non-removable;
	status = "okay";

        xr819wifi: xr819wifi@1 {
                reg = <1>;
                compatible = "xradio,xr819";
//                pinctrl-names = "default";
//                pinctrl-0 = <&wifi_wake>;
                interrupt-parent = <&r_pio>;
                interrupts = <1 0 IRQ_TYPE_LEVEL_LOW>; /* PM0 *///<6 10 IRQ_TYPE_EDGE_RISING>;
                interrupt-names = "host-wake";
                local-mac-address = [dc 44 6d c0 ff ee];
        };
};

can you gave me some advice about how to address this problem? tks.
best wishes.

[DeamonYang]

Oh ,I find That I used set wrong IRQ triger. It should be IRQ_TYPE_EDGE_RISING rather then IRQ_TYPE_LEVEL_LOW in the node of xr819wifi.
However there are another problem, the dmesg print
[ 9.863477] xradio_wlan mmc1:0001:1: bh thread exiting
how can I fix it.
best wishes