Re: [PATCH 2/7] drm/omap: tweak HDMI DDC timings

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On 9/26/19 8:54 AM, Tomi Valkeinen wrote:
On 03/09/2019 17:23, Laurent Pinchart wrote:
Hi Tomi,

Thank you for the path.

On Mon, Sep 02, 2019 at 03:53:54PM +0300, Tomi Valkeinen wrote:
From: Alejandro Hernandez <ajhernandez@xxxxxx>

A "HDMI I2C Master Error" is sometimes reported with the current DDC SCL timings. The current settings for a 10us SCL period (100 KHz) causes the
error with some displays.  This patch increases the SCL signal period
from 10us to 10.2us, with the new settings the error is not observed


It would be useful to document what those "some displays" are if you
can.

Unfortunately I have no idea. This was quite a while ago.

Alejandro, do you recall?

Not at this point, we threw out a bunch of equipment out during the move to the new office last year. I could only find one and it has no identifying information on it.

Alejandro


 Tomi

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