[PATCH 0/6] TDA998x CEC support

[Russell King - ARM Linux]

On Wed, Nov 29, 2017 at 09:11:43AM +0000, Russell King - ARM Linux wrote:
> On Wed, Nov 29, 2017 at 08:41:45AM +0100, Hans Verkuil wrote:
> > Hi Russell,
> > 
> > On 11/29/2017 12:17 AM, Russell King - ARM Linux wrote:
> > > Hi,
> > > 
> > > This patch series adds CEC support to the DRM TDA998x driver.  The
> > > TDA998x family of devices integrate a TDA9950 CEC at a separate I2C
> > > address from the HDMI encoder.
> > > 
> > > Implementation of the CEC part is separate to allow independent CEC
> > > implementations, or independent HDMI implementations (since the
> > > TDA9950 may be a separate device.)
> > 
> > Thank you for this patch series! I assume you are testing this with a
> > BeagleBone Black? If so, do you have a patch for the dts that hooks up the
> > interrupt? If possible, I'd like to test this with my BBB.
> 
> I don't, I test it on the SolidRun Dove Cubox.  I can't help with BBB.

It looks like I need to update the binding document - I'll send a patch
for that shortly.

The additional property that's required to have CEC functional is a
specification for calib-gpio, which must be the GPIO used for the
TDA998x interrupt - you'll have to work out which GPIO that is, that's
the bit I can't help with.

This GPIO is used to calibrate a free running oscillator within the
TDA998x used to clock the TDA9950 CEC block.

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