From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wolfram Sang Subject: Re: [PATCH v2] drivers: i2c: i2c-st: Update i2c timings Date: Fri, 1 Aug 2014 19:48:30 +0200 Message-ID: <20140801174830.GC3277@katana> References: <1406130247-19197-1-git-send-email-maxime.coquelin@st.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="hOcCNbCCxyk/YU74" Return-path: Content-Disposition: inline In-Reply-To: <1406130247-19197-1-git-send-email-maxime.coquelin-qxv4g6HH51o@public.gmane.org> Sender: linux-i2c-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Maxime COQUELIN Cc: linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Srinivas Kandagatla , Patrice Chotard , kernel-F5mvAk5X5gdBDgjK7y7TUQ@public.gmane.org List-Id: linux-i2c@vger.kernel.org --hOcCNbCCxyk/YU74 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Jul 23, 2014 at 05:44:07PM +0200, Maxime COQUELIN wrote: > The i2c timing values specified in the driver are the minimun values defi= ned > in the I2C specifications. > The I2C specification does not specify any default or maximum values. >=20 > Some I2C devices are out of spec, such as the HDMI link of the Toshiba 19= AV600 > TV, and might not work properly with minimum values. >=20 > This patch adds a 10% margin on all the timings in both Normal and Fast m= odes. >=20 > Trial and error method have been used to find the minimum margin necessar= y to > have the out-of-spec device working, and a security margin has been added. >=20 > Signed-off-by: Maxime Coquelin Applied to for-next, thanks! --hOcCNbCCxyk/YU74 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBAgAGBQJT29LuAAoJEBQN5MwUoCm2yBIQALXNAFBm8alftzfUqqSoXQnu SQtn2gQejdYZs+xxr59jSDP75cmXWEV8iPYBMZxToT5oGq/7Bsy6IzDTu7Js+hQ/ o9lhSwvC9PS0i9CyFDD54ZTAjGAl2E9nWKXppOnIzj47b/6S2PgG8LqP833SZa1p CFVBABLqtJiF7ejoQbM85bCorlRQYu1PVYsgpPcb+TJVtOO2Vet+CsFq8amzHH6Y 3NxMtyiWQ1rweBG6LNmxMMIPvbcfvJuBHTEYUIrUJEo6uwZS4RXUAifqWv3xtNR9 UbEiRL7Cn3SEP5UxkJhnR8lZ2iwlv6eLrL0Q4Bv4oL5PoZbuguCcbkTnww791r7/ B5oCFN11Nj/87pPSkCZ9nuRwbZ9GHtBWMihaEIaCf12zXGwKiGJQ0EBslvfr7r8X Fwvm4iczq8xfTzhL2dGV0m7dA9sHGihYfAZC9e5vFJlysE5ZvGC5vUG2E9uzv3JD yGCRTjBGT+Tw4UFaNqXIIOnyouGlMt278XsOypOyGjJA7VrGmfFjtTOphAcJm14e mvmt3czVdlVnOK5Q28Cn+Rd1BU3bdmou7xLhYd+aFLSHmO8wJnQlXxhSEXt+g3n/ qLrr5hfma+tbjHCx46z8MUd73VGMf3nR4m7BugwEXQj4v/8N7Koh69gzCJjyu3QQ CqoPI+hCIbpVBAsXxxcy =jQjo -----END PGP SIGNATURE----- --hOcCNbCCxyk/YU74--