From: Jean Delvare <jdelvare@suse.de>
To: Alex Deucher <alexdeucher@gmail.com>
Cc: dri-devel@lists.freedesktop.org
Subject: Re: [PATCH 1/2] drm/kms: Make i2c buses faster
Date: Fri, 21 Oct 2011 21:29:42 +0200 [thread overview]
Message-ID: <201110212129.42810.jdelvare@suse.de> (raw)
In-Reply-To: <CADnq5_Pt+J-T8mq+E_QeVEd+yZecvPxR3jryDFyM0sBaFiXyVA@mail.gmail.com>
Hi Alex,
On Friday 21 October 2011 08:05:48 pm Alex Deucher wrote:
> On Fri, Oct 21, 2011 at 10:16 AM, Jean Delvare <jdelvare@suse.de>
> > Does anyone know at which speed hardware I2C engines are running
> > the DDC bus on various graphics cards?
>
> IIRC, we generally target the radeon hw i2c engines to run at 50 khz.
Then it doesn't seem unreasonable to try and achieve the same for bit-
banged I2C. That's exactly what my patch is doing.
--
Jean Delvare
Suse L3
next prev parent reply other threads:[~2011-10-21 19:29 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-21 7:08 [PATCH 1/2] drm/kms: Make i2c buses faster Jean Delvare
2011-10-21 13:32 ` Alan Cox
2011-10-21 14:16 ` Jean Delvare
2011-10-21 18:05 ` Alex Deucher
2011-10-21 19:29 ` Jean Delvare [this message]
2011-10-22 14:38 ` Alex Deucher
2011-10-24 14:19 ` Eugeni Dodonov
-- strict thread matches above, loose matches on Subject: below --
2012-01-28 10:07 Jean Delvare
2012-01-28 14:46 ` Alex Deucher
2012-01-29 1:26 ` Keith Packard
2012-03-21 10:45 ` Jean Delvare
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