From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marc Kleine-Budde Subject: Re: [PATCH 3.18+] Tag current CAN FD controllers as non-ISO Date: Wed, 07 Jan 2015 14:17:24 +0100 Message-ID: <54AD31E4.6050005@pengutronix.de> References: <54AADC4F.2090404@hartkopp.net> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="feBXFivQk6b37NfAwGXtP1Gr6OQcUekdq" Return-path: Received: from metis.ext.pengutronix.de ([92.198.50.35]:57213 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751275AbbAGNRe (ORCPT ); Wed, 7 Jan 2015 08:17:34 -0500 In-Reply-To: <54AADC4F.2090404@hartkopp.net> Sender: linux-can-owner@vger.kernel.org List-ID: To: Oliver Hartkopp Cc: "linux-can@vger.kernel.org" , Stephane Grosjean , Dong Aisheng This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --feBXFivQk6b37NfAwGXtP1Gr6OQcUekdq Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On 01/05/2015 07:47 PM, Oliver Hartkopp wrote: > During the CAN FD standardization process within the ISO it turned out = that > the failure detection capability has to be improved. >=20 > The CAN in Automation organization (CiA) defined the already implemente= d CAN > FD controllers as 'non-ISO' and the upcoming improved CAN FD controller= s as > 'ISO' compliant. See at http://www.can-cia.com/index.php?id=3D1937 >=20 > Finally there will be three types of CAN FD controllers in the future: >=20 > 1. ISO compliant (fixed) > 2. non-ISO compliant (fixed, like the M_CAN IP v3.0.1 in m_can.c) > 3. ISO/non-ISO CAN FD controllers (switchable, like the PEAK USB FD) >=20 > So the current M_CAN driver for the M_CAN IP v3.0.1 has to expose its n= on-ISO > implementation by setting the CAN_CTRLMODE_FD_NON_ISO ctrlmode at start= up. > As this bit cannot be switched at configuration time CAN_CTRLMODE_FD_NO= N_ISO > must not be set in ctrlmode_supported of the current M_CAN driver. >=20 > Signed-off-by: Oliver Hartkopp Applied to can/master and added stable on Cc. thanks, Marc --=20 Pengutronix e.K. | Marc Kleine-Budde | Industrial Linux Solutions | Phone: +49-231-2826-924 | Vertretung West/Dortmund | Fax: +49-5121-206917-5555 | Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de | --feBXFivQk6b37NfAwGXtP1Gr6OQcUekdq Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBAgAGBQJUrTHkAAoJECte4hHFiupU/skP/RDRjbSjS2HSk6C+jU+vLRBM jbn3i5bLdJxwknNUwO8IJiCUHc1DJQZ9w+ySJa1asbAgPCJuWuALDMpqTMdR9a8M pE90eRcCmI75rvwcQc2TKLBSlX2uSotEDfQLoUkRUerJCdT6LKNKtrsK3erbekRv OulxNJKxhSxyoINtvMH5YJSfBVnx5SntU0zDg8SyM6Rsp6TcUi7zqGrAF5YXrjVy 8oqmiWiHUl3dlBRQK7yEUxwK0GRxoI8cZemsJK5zM4JwVyBwig9e7Veu5h3mVxYA emDfsVs8PXIyPiNblvrEy/U6NKitQIMNO2ezTZ/ZaoP5OWBOUsAsMYjXvbs7fVVQ LZlp3KXVGNPOtVZVT4/Qdr9G5qLI17OiKdEnqMVhJX4X1K+mmaTuNRFtsjH5XzsC HeVk+lvSWE/2Z04dwI3p3+ijFGdi9srWANWO4XflKsd7qP3ndLpgiNEzYeQrWF+Z ZuGFoK6Vii6IRlafbtrGZyzN+Pr77V4jFFlGMF0gUvoi74cmAkRAvH7gVyKKMhgB 77St0ysw6nVvrUKKERtvwXKG/skgTgsU+e/C57hpw5xM3DukL6fcdYEys3Cd3lNz oSEXO9I1U3FJM0HskY7d8U8DF/gbZsxRMDZEZ50ZvrDhbzTJ300VZDL7JApuOumq ZVEPufFMP7y7KpRgVcLS =kKKz -----END PGP SIGNATURE----- --feBXFivQk6b37NfAwGXtP1Gr6OQcUekdq--