[PATCH v2] drm/i915: Run DDC buses at 50 kbps

[Jean Delvare]

On Thursday 22 March 2012 09:50:23 pm Daniel Vetter wrote:
> On Wed, Mar 21, 2012 at 02:29:47PM +0100, Jean Delvare wrote:
> > A udelay value of 20 leads to an I2C bus running at only 25 kbps.
> > I2C devices can typically operate faster than this, 50 kbps should
> > be fine for all devices (and compliant devices can always stretch
> > the clock if needed.)
> >
> > FWIW, the vast majority of framebuffer drivers set udelay to 10
> > already. So set it to 10 in DRM drivers too, this will make EDID
> > block reads faster. We might even lower the udelay value later if
> > no problem is reported.
> >
> > Signed-off-by: Jean Delvare <jdelvare at suse.de>
> > Acked-by: Eugeni Dodonov <eugeni.dodonov at intel.com>
> > Cc: Dave Airlie <airlied at gmail.com>
> > Cc: Keith Packard <keithp at keithp.com>
> 
> Fyi this already got merged int Dave's tree (the unsplit version) as:
> 
> commit 1849ecb22fb3b5d57b65e7369a3957adf9f26f39
> Author: Jean Delvare <jdelvare at suse.de>
> Date:   Sat Jan 28 11:07:09 2012 +0100
> 
>     drm/kms: Make i2c buses faster

Thanks Daniel, I just noticed this as it got merged into Linus tree last 
night. I had not received any ack from Dave and the git repository 
mentioned in MAINTAINERS is wrong so I couldn't check whether my patches 
were already applied or not.

Anyway, the important thing is that they are in Linus' tree now.

-- 
Jean Delvare
Suse L3