Why can't I control gpioz in user space?

[Wjian.1]

Hi:

I encountered a strange problem when I tried to operate the gpioz pin with the gpioset command in user space and found that the level never changed. Can you give some suggestions to solve it.

[Fee]

Hi,

did you assign the gpioz peripheral to the secure context in your device tree using the etzpc node?

[Wjian.1]

Hi：

I've done it in the TF-A device tree,first，first, I add an ID to gpioz,and then assign the gpioz peripheral to the non secure context in device tree using the etzpc node.

include/dt-bindings/soc/st,stm32-etzpc.h:101:#define STM32MP1_ETZPC_GPIOZ_ID   95

then assign using the etzpc node：​

 DECPROT(STM32MP1_ETZPC_GPIOZ_ID, DECPROT_NS_RW,DECPROT_UNLOCK)  

but it seems that it has no effect

[Wjian.1]

Hi：

​I've done it in the TF-A device tree,first，first, I add an ID to gpioz,and then assign the gpioz peripheral to the non secure context in device tree using the etzpc node.

include/dt-bindings/soc/st,stm32-etzpc.h:101:#define STM32MP1_ETZPC_GPIOZ_ID   95

but it seems that it has no effect