From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wolfram Sang Subject: Re: [PATCH v2 1/2] i2c designware make SCL and SDA falling time configurable Date: Sun, 9 Mar 2014 09:20:32 +0100 Message-ID: <20140309082032.GD2575@katana> References: <20140116194303.GC4127@katana> <1390236223-22584-1-git-send-email-romainba@abilis.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="yudcn1FV7Hsu/q59" Return-path: Content-Disposition: inline In-Reply-To: <1390236223-22584-1-git-send-email-romainba-ux6zf3SgZrrQT0dZR+AlfA@public.gmane.org> Sender: linux-i2c-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Romain Baeriswyl Cc: rmallon-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, mika.westerberg-VuQAYsv1563Yd54FQh9/CA@public.gmane.org, rob.herring-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org, pawel.moll-5wv7dgnIgG8@public.gmane.org, mark.rutland-5wv7dgnIgG8@public.gmane.org, swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org, rob-VoJi6FS/r0vR7s880joybQ@public.gmane.org, pierrick.hascoet-ux6zf3SgZrrQT0dZR+AlfA@public.gmane.org, vgupta-HKixBCOQz3hWk0Htik3J/w@public.gmane.org, christian.ruppert-ux6zf3SgZrrQT0dZR+AlfA@public.gmane.org, chiau.ee.chew-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, khali-PUYAD+kWke1g9hUCZPvPmw@public.gmane.org, rafael.j.wysocki-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-doc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, romainba-ux6zf3SgZrrQT0dZR+AlfA@public.gmane.org List-Id: devicetree@vger.kernel.org --yudcn1FV7Hsu/q59 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Jan 20, 2014 at 05:43:43PM +0100, Romain Baeriswyl wrote: > This patch allows to set independantly SCL and SDA falling times. > The tLOW period is computed by taking into account the SCL falling time. > The tHIGH period is computed by taking into account the SDA falling time. >=20 > For instance in case the margin on tLOW is considered too small, it can > be increased by increasing the SCL falling time which is by default set > at 300ns. >=20 > The same applies for tHIGH period with the help of SDA falling time. >=20 > Signed-off-by: Romain Baeriswyl > Reviewed-by: Christian Ruppert Applied to for-next, thanks! --yudcn1FV7Hsu/q59 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.15 (GNU/Linux) iQIcBAEBAgAGBQJTHCRQAAoJEBQN5MwUoCm2FJUP/17E0J+WUwcZkB4MWPXkGE/e rs4EgmrjtGNIm52Xfvu/UYXe79t4i7ySxrPW5gz1VoBzGXg937i4BG8Piva+b7Z9 OFE59Nh4KpCEdBLyi8Wu/FfoCmDAwULK4qIk6fo1ofrAlA2KuAgSdSSXjY+y5MWL S2tmBGmXcsBERbIYobcY9fAapbzE6f8TNutG5zARJOliievWjB21AW8lK2mxFKla isoHEJQMPu/EnqvhCcDK2RfjmelrJyAZvulOkIicYeVY113vIn0QA+UBRiSQ0It0 I2bdlhGvuIzDlPRZAfcesCFQxPs1eXN7BzbsY2dFNJgJSf+CUB7EMQ7sx/OJ6GuW ynU+mkwfLV8nNCOyVar5IH2VNMY4L+IBbmoE7ULKtLig4UNheFnZ8AKxEiIEYD5c 5OnlCCfxC8F9iKRrKGM8ttgM/V2tuP4GQWhMUttrLxh5KbS0jnpF4VJnPK7mXDUa uF4Mcs+Bz09lj3FGl8MWAXyF/o4NdFHpZftwzL1i2yil5/jMFjILSA/UtL19JQWQ Ka+dLf+yhEkY5zwUZ2kQU6vVekO4Zk1YVcKFc4tfIEQWznz35MnVAgo7vmjc2Y7K 89R2MM9b9C9waWgGNFZA+Dn3CiqHDV6ceYF6plp9DY7cD3fzKU7orE3oBqMFlyp0 omYfG2va9Sb1GM4sL3Xi =iloF -----END PGP SIGNATURE----- --yudcn1FV7Hsu/q59--