tree 3e81b04ce00ac5acbb3ab117b849b4b17d5c0d9b
parent b5d980c0e74ae5773bab7c2adea7caa8d6a2899e
author Mayank Rana <mrana@codeaurora.org> 1486670211 -0800
committer Mayank Rana <mrana@codeaurora.org> 1487027697 -0800

usb: dwc3: Keep track of interrupt statistics

This change adds debug support to log all received different
events with endpoint0, other endpoints and gadget events. It
tracks these events per endpoint and displays the same.

For each of the endpoint event counters, add the rate (in Hz)
at which it occurs in order to better analyze performance and
aid in optimization.

How to use:
- Mount debugfs
- To see received all dwc3 events/interrupts
cat /sys/kernel/debug/<base_address>.dwc3/int_events
- To clear all received dwc3 events/interrupts
echo 0 > /sys/kernel/debug/<base_address>.dwc3/int_events

Change-Id: Ibf5f3ee57f69c87f94f55a58f50792075be24fbb
Signed-off-by: Gilad Broner <gbroner@codeaurora.org>
Signed-off-by: Mayank Rana <mrana@codeaurora.org>