Hi all,
On 10/04/2018 10:21 PM, Grigor Tovmasyan wrote:
> Here are two little fixes for LPM feature.
>
> First one is coverity warning fix.
>
> The Second one was asserted by Stefan Wahren.
>
> Changes from version 0:
>
> 1/2:
> - Instead of converting parameter in the CHECK_RANGE macro
> to int, changed hird_threshold type from u8 to int.
>
>
> Grigor Tovmasyan (2):
> usb: dwc2: gadget: Fix coverity issue
> usb: dwc2: gadget: Change LPM default values
>
> drivers/usb/dwc2/core.h | 2 +-
> drivers/usb/dwc2/params.c | 8 ++++----
> 2 files changed, 5 insertions(+), 5 deletions(-)
The second patch in this series fixes a regression in 4.17-rc1 using dwc2 in gadget
mode on Exynos4412, introduced by commit 7455f8b7f0b3 ("usb: dwc2: Enable
LPM"). The regression is that using the cdc_acm serial gadget (and
presumably other gadgets) serial console output will only sporadically
show up on the host (it seems to only show up as input is sent).
However, I'm unsure if completely disabling LPM is the correct fix, as the dwc2
revision in Exynos4412 (0x4f54281a) should support LPM according to the
source.
I'm not really sure how to debug this any further (vendor kernel
releases contain no mention of LPM in the gadget drivers), so any pointers
in that direction would be much appreciated.
Cheers,
Simon
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