From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thierry Reding Subject: Re: [PATCH 3/8] mmc: tegra: Implement HS400 enhanced strobe Date: Thu, 9 Aug 2018 15:47:54 +0200 Message-ID: <20180809134754.GE21639@ulmo> References: <1533650404-18125-1-git-send-email-avienamo@nvidia.com> <1533650404-18125-4-git-send-email-avienamo@nvidia.com> <20180809114345.GL21639@ulmo> <20180809152254.03b97af0@dhcp-10-21-25-168> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="SqEuGDw53xMPnx3c" Return-path: Content-Disposition: inline In-Reply-To: <20180809152254.03b97af0@dhcp-10-21-25-168> Sender: linux-kernel-owner@vger.kernel.org To: Aapo Vienamo Cc: Ulf Hansson , Rob Herring , Mark Rutland , Jonathan Hunter , Adrian Hunter , Mikko Perttunen , linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: linux-tegra@vger.kernel.org --SqEuGDw53xMPnx3c Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Aug 09, 2018 at 03:22:54PM +0300, Aapo Vienamo wrote: > On Thu, 9 Aug 2018 13:43:45 +0200 > Thierry Reding wrote: >=20 > > On Tue, Aug 07, 2018 at 04:59:59PM +0300, Aapo Vienamo wrote: > > > Implement HS400 enhanced strobe. =20 > >=20 > > Can you provide a little more information about what the impact is of > > this? Does this increase throughput? How much? >=20 > The eMMC enhanced strobe is a mechanism that can be used instead of the > HS400 tuning procedure. Note that the delay line calibration implemented > later on in this series is Tegra specific and has to be performed > regardless of which type of HS400 tuning mechanism is used. Sounds like a variation of that would be good material for the commit message. Thierry --SqEuGDw53xMPnx3c Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEiOrDCAFJzPfAjcif3SOs138+s6EFAltsRgoACgkQ3SOs138+ s6Ek9g/8CIOFqwrTD09B0L2yVYz5rSYuD+fJvJACIETWJSNe4V/jUUsvRnGbCkhm 92ZLz6diFCrz5/uX/cJAdnbVcSyOjqidVkpJzPlZLeyx0V2q8Gobee0+AuSMHVub 5WZOms5ZPZhx38G+x7TTwA8p8gtVtoQtAHnDTZU0EhxXyD75YGrUk22bYvXRKSbC UumCFuJDmghSAfbahN6bRO/6zbCU1iWCzah4GktlUC88jmtdpLBtue93rGNYthGp Dl81TPu43QvOw7/GSGGNWY4cDdjoVon1RUH7dwgA8OY3OnLv33oOLNY9nr5E38PN xvJiwMko3YWyIW3/sFmfG91Q0rKQj7b5rCe8kgVdD1wVu8ISMt/uxTos3cwu/j6y 1c58NWO19sVDPil0TovPqiSb5GBfRZAVSVAhAHYx2aqmEiKvx2/plkvO7fy/J/B3 OVyHepxiBUURyxNIjPUvUXlhDQ2/0FnoENyZ/SWW/bvWmXzScIq4DODwuF2kOvEO lLTNPwVkm9oAhmgY4o396ZhomYI9xMUXb63ozdPdVzKXl3EcinQL0W9B1ysF6ixs HvpZN/kp4tEx7/zQ153vPW+4/B4SfwnqvJX6fHP8KcdZAtDVD2/3FTW6aDdAi+vE 2DL+KGaenRGQ6WAmhFS9CQomXMvP2ELO/dF9ph/H+5sof76udWo= =Q54M -----END PGP SIGNATURE----- --SqEuGDw53xMPnx3c--