[PATCH v4 3/3] drm/bridge/lontium-lt9611uxc: move HPD notification out of IRQ handler

[Andrzej Hajda]

W dniu 22.01.2021 o 10:34, Andrzej Hajda pisze:
> W dniu 22.01.2021 o 00:33, Dmitry Baryshkov pisze:
>> drm hotplug handling code (drm_client_dev_hotplug()) can wait on mutex,
>> thus delaying further lt9611uxc IRQ events processing.  It was observed
>> occasionally during bootups, when drm_client_modeset_probe() was waiting
>> for EDID ready event, which was delayed because IRQ handler was stuck
>> trying to deliver hotplug event.
>> Move hotplug notifications from IRQ handler to separate work to be able
>> to process IRQ events without delays.
>>
>> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
>> Fixes: 0cbbd5b1a012 ("drm: bridge: add support for lontium LT9611UXC bridge")
>
> Reviewed-by: Andrzej Hajda <a.hajda at samsung.com>
>
>
> Let's wait till Monday for other comments, then I can queue the patchset.


Queued to drm-misc-fixes.

I have fixed missing parentheses in the last patch in 
lt9611uxc_hpd_work, but apparently sth went wrong and I have merged 
version without these parentheses :(, can be fixed in another future 
patchset.

Regards

Andrzej


>
>
> Regards
> Andrzej
> _______________________________________________
> dri-devel mailing list
> dri-devel at lists.freedesktop.org
> https://protect2.fireeye.com/v1/url?k=20f4a2d0-7f6f9b96-20f5299f-0cc47a3003e8-b85b502ae8b34801&q=1&e=194b3466-3374-4717-82f7-d4cec3951dd6&u=https%3A%2F%2Flists.freedesktop.org%2Fmailman%2Flistinfo%2Fdri-devel