Commits
Anson Huang committed 04b5224599f
ENGR00269616 mx6: Unexpected enter WAIT mode cause IPU underrun CCM state machine has restriction that, everytime enable LPM mode, we need to make sure last wakeup from LPM mode is a dsm_wakeup_signal, which means the wakeup source must be seen by GPC, then CCM will clean its state machine and re-sample necessary signal to decide whether it can enter LPM mode. Here we use the forever pending irq #125, unmask it before we enable LPM mode and mask it after LPM is enabled, this flow will make sure CCM state machine in reliable state before we enter LPM mode. Signed-off-by: Anson Huang <b20788@freescale.com>