gpio_to_irq in LSDK1803

[shijj]

hi

I want to make a gpio interrupt driver.my chip is ls1046a

In my code:

irq_no=gpio_to_irq(GPIO_NUM);

the func"gpio_to_irq()" return -22, my GPIO_NUM=gpio1_26=480+26=506;

Does nxp not provide this interface? In IMX platform i can this function successfully.

here is my code:

#define BASE_GPIO2           506   

static int __init button_init(void){
int error,a;
a = gpio_is_valid(BASE_GPIO2);
printk(KERN_INFO"value a is:%d.\n",a);
irq_no = gpio_to_irq(BASE_GPIO2);
printk(KERN_INFO"irq_no is:%d.\n",irq_no);

[yipingwang]

Please refer to "mpc8xxx_gpio_to_irq" in drivers/gpio/gpio-mpc8xxx.c in Linux Kernel source code.

Please refer to the section "2. Configure GPIO driver in Linux Kernel" in LS1043 GPIO support in Linux SDK.

Please refer to the attached GPIO driver source code.