Hi,
Our customer has an EC that would control SND9039 PWRBTN(CH1) and VSYS/VBATSENSE(CH2) as below. All the PMIC behavior are as expected without an issue. But if they power up the PMIC after this, they'll see two kinds of issue from SOC side.
- Case1: SLP_S0IX doesn't not rise during cold boot sequence
- Case2: After cold boot sequence is done, SOC unexpectedly driving SLP_S0IX high and low periodically to PMIC, and then PMIC enter/exit from standby mode based on SLP_S0IX behavior.
Until now, we didn't see anything abnormnal from PMIC, but customer need our comments if we see any potential risk if they configure PWRBTN and VSYS as below. THanks!
Antony
