[Letux-kernel] [PATCH v16 1/4] drm/bridge: dw-hdmi: introduce dw_hdmi_enable_poll()

Paul Cercueil paul at crapouillou.net
Thu Mar 3 18:20:51 CET 2022

Hi Nikolaus,


>>  Well he said "the Ingenic DRM core" aka ingenic-drm-drv.c. You do 
>> have access to the main drm_device in the ingenic_drm_bind() 
>> function, so you can add it there (with a cleanup function calling 
>> drm_kms_helper_poll_fini() registered with 
>> drmm_add_action_or_reset()).
> Well, do you really want to mix HPD detection between connector, 
> Synopsys bridge and Ingenic DRM core? These are independent...
> Or should be accessed only through the bridge chain pointers.
> IMHO we should keep separate functions separate.

The drm_kms_helper_poll_init() just says "this DRM device may have 
connectors that need to be polled" so it very well fits inside the main 
driver, IMHO.


> And maybe this should also be conditional? Maybe not depend on 
> compatible = jz4780 but compatible = ci20?
> Looks to me to be a quick fix in the wrong place.
> Let's fix the CSC issue first.
> BR,
> Nikolaus

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