RK3568-调试方法

gpio调试

[root@ok3568:/]# cat /sys/kernel/debug/gpio
gpiochip0: GPIOs 0-31, parent: platform/fdd60000.gpio, gpio0:
 gpio-5   (                    |enable              ) out hi
 gpio-14  (                    |reset               ) out hi
 gpio-15  (                    |work                ) out lo
 gpio-22  (                    |reset               ) out hi
 gpio-23  (                    |enable              ) out hi

gpiochip1: GPIOs 32-63, parent: platform/fe740000.gpio, gpio1:
 gpio-41  (                    |5g-pwr              ) out hi
 gpio-42  (                    |5g-rst              ) out lo

gpiochip2: GPIOs 64-95, parent: platform/fe750000.gpio, gpio2:

gpiochip3: GPIOs 96-127, parent: platform/fe760000.gpio, gpio3:
 gpio-98  (                    |mdio-reset          ) out hi
 gpio-100 (                    |mdio-reset          ) out hi
 gpio-110 (                    |gpio key            ) in  lo
 gpio-117 (                    |vcc3v3_l