Quoting Vijaya Krishna Nivarthi (2023-04-04 11:03:18) > There are large number of QSPI irqs that fire during boot/init and later > on every suspend/resume. > This could be made faster by doing DMA instead of PIO. > Below is comparison for number of interrupts raised in 2 acenarios... > Boot up and stabilise > Suspend/Resume > > Sequence PIO DMA > ======================= > Boot-up 69088 19284 > S/R 5066 3430 > The interrupts are less, yes, but does it save time or power?
