From mboxrd@z Thu Jan 1 00:00:00 1970 From: Maxime Ripard Subject: Re: [PATCH v2 10/12] clk: sunxi: mod0: Introduce MMC proper phase handling Date: Tue, 2 Sep 2014 09:52:34 +0200 Message-ID: <20140902075234.GO15297@lukather> References: <1409428991-2442-1-git-send-email-maxime.ripard@free-electrons.com> <1409428991-2442-11-git-send-email-maxime.ripard@free-electrons.com> <20140901213945.5251.37105@quantum> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="dMUnVF4nlYq3B90P" Return-path: Content-Disposition: inline In-Reply-To: <20140901213945.5251.37105@quantum> Sender: linux-mmc-owner@vger.kernel.org To: Mike Turquette Cc: Hans de Goede , Emilio Lopez , chris@printf.net, david.lanzendoerfer@o2s.ch, ulf.hansson@linaro.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mmc@vger.kernel.org, kevin.z.m.zh@gmail.com, sunny@allwinnertech.com, shuge@allwinnertech.com, zhuzhenhua@allwinnertech.com List-Id: devicetree@vger.kernel.org --dMUnVF4nlYq3B90P Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi, On Mon, Sep 01, 2014 at 02:39:45PM -0700, Mike Turquette wrote: > Quoting Maxime Ripard (2014-08-30 13:03:09) > > The MMC clock we thought we had until now are actually not one but three > > different clocks. > >=20 > > The main one is unchanged, and will have three outputs: > > - The clock fed into the MMC > > - a sample and output clocks, to deal with when should we output/samp= le data > > to/from the MMC bus > >=20 > > The phase control we had are actually controlling the two latter clocks= , but > > the main MMC one is unchanged. > >=20 > > We can adjust the phase with a 3 bits value, from 0 to 7, 0 meaning a 1= 80 phase > > shift, and the other values being the number of periods from the MMC pa= rent > > clock to outphase the clock of. > >=20 > > Signed-off-by: Maxime Ripard >=20 > Looks good. Thanks a lot for revisiting this after talking to your > hardware team! It's not *our* hardware team, but I'll let them know :) Maxime --=20 Maxime Ripard, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com --dMUnVF4nlYq3B90P Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBAgAGBQJUBXdCAAoJEBx+YmzsjxAgfMQP/RN3s/DNUsrNwryKlgk8GVDj pPXo+F8A6IZtVXrXQUZbBeYE08HD889WKzvB8YwWAbHehEOLTan1TALOb7i20Pmc WPGSiy106Z4oeRnRwuMzhJjF/h4Jl7/eRerSHbdjrp3OC2ebK6VQlhUHpP4K/LD5 W7MVTorHrnCuOfMGZYDcqrxDyHDy5SzPAu28+Zgl4FN3hNnPr8TIMQTZT7C08NmK oT+xyK9xoUPpw+XokpIHpocNnPk37cjPzdMvbKYwTzmUmn5pa18pfgHlJRxDtZtf wzh7+Uq3cdacc77R/bXB+rmNoG8eLWsawHQITE0/uX3pl99gN8VdKWjPq9gH8ZQN Acr7MAdBCbPOn9ZVG7g7alEEiq0vwSHYTChUSfSzQ0KDtG0MDCbQH6khZS5PZhXj u2ew72Yx9ZTAtvElVW4dR5Fx1LKkPfDmGJgA3SKq5o++/4ayctt2o1ucrtiUfVe/ NXNUx8vfA2orW/M2oCQ3OpOltx1k5ML4m4cacTgmeyTyNftYlD6HcGl8Avy+2yS+ 8o5ieRPt1dA4wPFnpePzHcsauLxTfhMxmW2kA2HUNV2GAu70vO1n7ZTkzkyZrGoo hHTODrWau08cbEonUFCnUQ13f0WIl/t8PWafzqxZoMZpgqnN0MKhAnoVmpLkULzW M6ZYtDGjp4fQUSAmlany =04mW -----END PGP SIGNATURE----- --dMUnVF4nlYq3B90P--