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TDA4VM: TDA4VM WKUP GPIO0

Tran Thang
Prodigy 50 points
Part Number: TDA4VM

Dear Ti,

We use custom board of J721E TDA4VM. We connect WKUP_GPIO0_4 with GMSL. I have some concern about it.

  • Can we control this pin from Linux domain ?
  • Can we use interrupt with this pin from Linux domain ?

Thanks for your supporting and sorry for my bad English.

  • 0
    TI__Guru*** 130430 points
    Tran Thang said:
    • Can we control this pin from Linux domain ?
    • Can we use interrupt with this pin from Linux domain ?

    Both are possible. In fact Linux already has the device tree node for WKUP_GPIO0. So you can use it as any other MAIN domain GPIO module in Linux.
    As long as the WKUP_GPIO0_4 is not hardwired to any other peripheral on your custom board it can be used in Linux.

    - Keerthy