Tarun Kanti DebBarma [off-list ref] writes:

This series is continuation of cleanup of OMAP GPIO driver and fixes.
The cleanup include getting rid of cpu_is_* checks wherever possible,
use of gpio_bank list instead of static array, use of unique platform
specific value associated data member to OMAP platforms to avoid
cpu_is_* checks. The series also include PM runtime support.

A quick test of this series on 3430/n900 shows that it prevents PER
retention.  I see CM_FCLKEN_PER=0000c000 (debounce clock for GPIO banks
3 & 4 are still enabled.)

Can you retest with debounce enabled on one of the GPIOs for one of your platforms?

Kevin