Hi Andy, When I did some experiment on reducing suspended current, I found that the system could not resume occasionally if the power key is pressed. Then I monitored the IRQ singal from PCF50633 to CPU, it will stay in LOW when this pheonmenon occurs. Do you have this on your A5?
I try to find some solutions like the following: - Change the i2c clock as almost 100K - modify the sequence of registering platform device But these two approaches could not eliminate this issue. So I tried to use i2cdump to read PCF50633 after every suspend/resume process. This issue would not happen anymore. Obviously, INTs of PCF50633 are not read & clear indeed as resuming occasionally. Do you think we have to check the value we read from INT1~INT5? INT2 is 0xff when this issue occurs, but the EXTON1~EXTON3 is connected to ground......... Any thoughts? Cheers, Matt
