Hi Minas,

in linux-next-20180327 i will get the following confusing warnings on the 
Raspberry Pi:

Linux raspberrypi 4.16.0-rc7-next-20180327+ #2 SMP PREEMPT Sat Mar 31 13:24:47 
CEST 2018 armv6l GNU/Linux

[    6.809185] dwc2 20980000.usb: dwc2_check_params: Invalid parameter lpm=1
[    6.816741] dwc2 20980000.usb: dwc2_check_params: Invalid parameter 
lpm_clock_gating=1
[    6.825852] dwc2 20980000.usb: dwc2_check_params: Invalid parameter besl=1
[    6.833836] dwc2 20980000.usb: dwc2_check_params: Invalid parameter 
hird_threshold_en=1

I think the reason is that these features aren't supported.

DWC2 core: 2.80a

Extract of the BCM2835 datasheet:
LPM Mode of Operation: 0 (Non-LPM-capable core)
Enable Power Optimization: No

I hope we can suppress these confusing warnings.

Best regards
Stefan
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