From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thierry Reding Subject: Re: [PATCH] usb: host: xhci-tegra: Tegra186/Tegra194 LPM Date: Mon, 24 Feb 2020 13:51:00 +0100 Message-ID: <20200224125100.GA2108060@ulmo> References: <20200224062145.25785-1-jckuo@nvidia.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="+HP7ph2BbKc20aGI" Return-path: Content-Disposition: inline In-Reply-To: <20200224062145.25785-1-jckuo-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org> Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: JC Kuo Cc: mathias.nyman-VuQAYsv1563Yd54FQh9/CA@public.gmane.org, gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org, jonathanh-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org, linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, nkristam-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org List-Id: linux-tegra@vger.kernel.org --+HP7ph2BbKc20aGI Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable 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. >=20 > Signed-off-by: JC Kuo > --- > 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 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 --+HP7ph2BbKc20aGI Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEiOrDCAFJzPfAjcif3SOs138+s6EFAl5TxrAACgkQ3SOs138+ s6HBvg/+JM4X5jwAIB8LBR3PfROxqVLlxVwGE+pixWhI7HgPOhdWH4O+DXM43vpk JOYvOuVQGtT4I2IMlO4fUJTUoJxLORidr/6yLitVYlizwPrv5CR/BufR3mclEm3z Jcr1W9ljDrupb+xsisrCmN5MlMUXTvJVhGNuRYrE01LebPkHTCabko1TCVP8Zup7 JZ+FGI3XSgqWn0/+TyrDSiV+RYvT7moE30fIP8jFi3ML50htn9mHt1yNwE2scDM2 JxSkSYGt0SRmq4WFSDcK4vlO2R9PBJpbXz5Gn6ym3mdqxRqPgCpWMYuqV4z3BKvR mEcXlFGAFecwhk97gSfD5ykbaetceWDjsOTUkYlFZPC+Fx7AwIdLh1/NMq6hg8I2 FZ+zCnnFpO7q/uziqeUBBqteAoEFi094TJ9SlWTfm4esudxPNvU7r3TJZipqiqom aq9yof+0f9uz4y8uKYk8z7OVWq3w6onXa0/VjqsDCucRPqQnfdxBctRcFFKzUHBH PqRXRPWAjWVJriqWhWW4+Hl+NsnGbA7SnHN0XNZDQRjPQmgEyz3jFX5hQ04HFhLA PL8J2WLxcTjkesYO5sadp/3h715v7zpXmlgG9AewN+BZGv964qIfWD93dNBdYy7s 2xiwhqhLI0TN+vhtsFGJARVr8FAGuAKSBAl/lR/u8EA9mw+aPck= =obLV -----END PGP SIGNATURE----- --+HP7ph2BbKc20aGI--