[PATCH 2/4] drm/bridge: dw-hdmi: add cec notifier support

[Hans Verkuil]

Hi Russell,

On 09/06/17 16:10, Russell King - ARM Linux wrote:
> On Fri, Jun 09, 2017 at 03:56:39PM +0200, Neil Armstrong wrote:
>> Yes, but on the Amlogic Meson plarform, the DW-HDMI CEC controller is
>> not used, but a custom one, so this notifier is actually useful for
>> this platform and maybe others.
> 
> Is the CEC controller configured into dw-hdmi (is the config bit set?)
> I'm just wondering if we're going to end up with two CEC drivers trying
> to bind to the same notifier.
> 
>> Should we really wait until I push the Amlogic AO CEC driver ? Having a
>> notifier in the DW-HDMI driver won't harm anybody since it *will be used*.
> 
> It sounds like this adds additional information that has been missing
> from the review of my patches - and I suspect changes Hans' comments.
> So, I'll wait, it seems pointless to try and update the patches when
> it's not clear how to proceed due to other dependencies, especially
> when it means that their existing state is what's required (I'm pleased
> that I've held off modifying the patches so far.)
> 
> If that means having to wait another kernel revision, then I guess that's
> what will have to happen.

Can you respin your patch series, keeping the notifier support? The CEC
kernel config handling has been cleaned up (just select CEC_CORE and
CEC_NOTIFIER) so you should be good to go.

I've already Acked patches 1-3. I had some comments for patch 4, so that
needs a bit more work.

Note that there is now a cec_transmit_attempt_done() helper function that
will simplify your code.

Regards,

	Hans