Other Parts Discussed in Thread: DA8XX
Hi,
We have to control multiple GPIO pins on Am62x in one of our project at u-Boot level. The dir,set and get api needs to accessed at u-boot level.
For Am62x the compatible driver is ti-keystone-gpio. i have done the below mentioned configuration, but cant able to get it working.
kindly help us to solve the problem.
in Configuration file
CONFIG_DA8XX_GPIO=y
in device tree file i have made the changes as
k3-am62x-sk.dts
&main_gpio0{
test-gpio = <&main_gpio0 49 GPIO_ACTIVE_HIGH>
};
Then in the .C File
struct udevice *dev;
struct gpio_desc desc;
int err = gpio_request_by_name(dev, "test-gpio", 0, &desc, GPIOD_IS_OUT);
if(!err)
printf("cannot able to find requested gpio");
else{
int ret = dm_gpio_get_value(&desc);
printf("ret : %d\n",ret);
}
While testing i have got the ret value as -2. which is negative value says there is a error.
Whether this changes are sufficient or do i need to modify more, to get it working.
regards,
Murali C
