[PATCH v2 4/7] drm/i2c: tda998x: convert to bridge driver

[Russell King - ARM Linux]

On Wed, Aug 08, 2018 at 03:09:30PM -0400, Sean Paul wrote:
> > -static const struct drm_encoder_helper_funcs tda998x_encoder_helper_funcs = {
> > -	.dpms = tda998x_encoder_dpms,
> > -	.prepare = tda998x_encoder_prepare,
> > -	.commit = tda998x_encoder_commit,
> > -	.mode_set = tda998x_encoder_mode_set,
> > -};
> 
> Now that encoder is a stub, it should really be removed from here. The encoder
> should be instantiated elsewhere and attach the bridge to itself. There are a
> bunch of examples of this in bridge/

That's not possible at present - this driver has to remain compatible
with Armada and TI LCDC, both of which expect this driver to create
the encoder.

In any case, bridges are buggy with unbinding/rebinding as I've pointed
out several times in the past, but TDA998x used with Armada and TI LCDC
as it currently stands are not.  So, to do this as a full conversion to
bridge and pushing the encoders into the DRM drivers results in a
regression for these two DRM drivers.  I'm not willing to accept such
a regression, sorry.

Thanks for the other cleanup suggestions, they can be done with a
later patch (these changes have already been been merged.)

-- 
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