Re: [PATCH] usb: host: xhci-tegra: Tegra186/Tegra194 LPM

[Thierry Reding <thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

[-- Attachment #1: Type: text/plain, Size: 932 bytes --]

On Mon, Feb 24, 2020 at 02:21:45PM +0800, JC Kuo wrote:
> Tegra186 and Tegra194 xHC supports USB 3.0 LPM. This commit enables
> XHCI_LPM_SUPPORT quirk for Tegra186 and Tegra194.
> 
> Signed-off-by: JC Kuo <jckuo-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
> ---
>  drivers/usb/host/xhci-tegra.c | 7 +++++++
>  1 file changed, 7 insertions(+)

I see that Mathias has already queued this up, but for the record:

Acked-by: Thierry Reding <treding-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>

JC, is there some way that we can test this? I see that there are some
sysfs files that can control LPM enablement on a per-device basis, but
is there some way to check that this works as expected? Or do we just
assume everything is fine as long as all the devices continue to operate
properly? Perhaps there are some state transition counters or something
that would indicate that devices are properly transitioning?

Thierry

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]