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Message-ID: <36052284-6b17-4b3f-ab99-a01beed4c601@collabora.com>
Date: Wed, 22 May 2024 09:13:35 +0200
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: kuro <kuro.chung@....com.tw>, Pin-yen Lin <treapking@...omium.org>,
 Kenneth Haung <kenneth.hung@....com.tw>,
 Andrzej Hajda <andrzej.hajda@...el.com>,
 Neil Armstrong <neil.armstrong@...aro.org>, Robert Foss <rfoss@...nel.org>,
 Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
 Jonas Karlman <jonas@...boo.se>, Jernej Skrabec <jernej.skrabec@...il.com>,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
 David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
 Hermes Wu <hermes.wu@....com.tw>, Allen Chen <allen.chen@....com.tw>,
 "open list:DRM DRIVERS" <dri-devel@...ts.freedesktop.org>,
 open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v13] drm/bridge: it6505: fix hibernate to resume no
 display issue

Il 22/05/24 08:55, kuro ha scritto:
> From: Kuro Chung <kuro.chung@....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@....com.tw>
> Signed-off-by: Hermes Wu <hermes.wu@....com.tw>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>



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