Date: Mon, 08 Apr 2013 00:31:22 +0200 From: =?ISO-8859-1?Q?Jean-S=E9bastien_P=E9dron?= <dumbbell@FreeBSD.org> To: Konstantin Belousov <kostikbel@gmail.com> Cc: =?ISO-8859-1?Q?Olivier_Cochard-Labb=E9?= <olivier@cochard.me>, svn-src-head <svn-src-head@freebsd.org>, svn-src-all <svn-src-all@freebsd.org>, src-committers <src-committers@freebsd.org> Subject: Re: svn commit: r249041 - in head/sys/dev/drm2: . i915 Message-ID: <5161F3BA.8040001@FreeBSD.org> In-Reply-To: <20130407190509.GA2930@kib.kiev.ua> References: <201304030827.r338RZih051806@svn.freebsd.org> <CA%2Bq%2BTcr56QXUkNhS65nUQyfoAqgfRSp3RD5avL8LVATedeNPCA@mail.gmail.com> <5161ADD8.6090607@FreeBSD.org> <CA%2Bq%2BTcr7AGZxBXjdOKut=PPQ65DcJ3PPd-%2B7qXmc-fF1cOMu9A@mail.gmail.com> <20130407190509.GA2930@kib.kiev.ua>
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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) ------enig2CNMKSCOCLNPAEPJCPDWM Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable On 07.04.2013 21:05, Konstantin Belousov wrote: > I suspect that the issue is with the drm2/i915/intel_dp.c. > You might try to use shift to 7 instead of 8 for address in the > intel_dp_aux_native_read/write, but I am not sure. Based on your remark, I proposed the following patch to Olivier: http://people.freebsd.org/~dumbbell/radeonkms/drm-i915-intel_iic.b.patch And it worked for him! If I understand correctly, this "aux channel" emulates a I2C bus. The patch right-shifts back the slave address (in drm_dp_iic_helper.c). This address is then used in intel_dp_i2c_aux_ch() (intel_dp.c). If you agree, I can commit it. --=20 Jean-S=E9bastien P=E9dron ------enig2CNMKSCOCLNPAEPJCPDWM Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (FreeBSD) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iEYEARECAAYFAlFh884ACgkQa+xGJsFYOlPCugCePnb8tnkXzWkjFnCCeLdA4Fn6 KesAn1U53YGlrh0On1s2GaGV/argh6ca =NU2a -----END PGP SIGNATURE----- ------enig2CNMKSCOCLNPAEPJCPDWM--
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