[PATCH v13] drm/bridge: it6505: fix hibernate to resume no display issue

[AngeloGioacchino Del Regno]

Il 22/05/24 08:55, kuro ha scritto:
> From: Kuro Chung <kuro.chung at ite.com.tw>
> 
> When the system power resumes, the TTL input of IT6505 may experience
> some noise before the video signal stabilizes, necessitating a video
> reset. This patch is implemented to prevent a loop of video error
> interrupts, which can occur when a video reset in the video FIFO error
> interrupt triggers another such interrupt. The patch processes the SCDT
> and FIFO error interrupts simultaneously and ignores any video FIFO
> error interrupts caused by a video reset.
> 
> Fixes: b5c84a9edcd4 ("drm/bridge: add it6505 driver")
> Signed-off-by: Kuro Chung <kuro.chung at ite.com.tw>
> Signed-off-by: Hermes Wu <hermes.wu at ite.com.tw>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>