linux-kernel - Re: [PATCH v4 02/10] drm/vc4: hdmi: implement clear

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Message-ID: <36278555-a01e-4c96-bb26-e170016e5f8c@samsung.com>
Date: Mon, 26 Jan 2026 18:44:52 +0100
From: Marek Szyprowski <m.szyprowski@...sung.com>
To: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>, Maarten Lankhorst
	<maarten.lankhorst@...ux.intel.com>, Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>, David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>, Dave Stevenson
	<dave.stevenson@...pberrypi.com>, Maíra Canal
	<mcanal@...lia.com>, Raspberry Pi Kernel Maintenance
	<kernel-list@...pberrypi.com>, Chen-Yu Tsai <wens@...nel.org>, Jernej
	Skrabec <jernej.skrabec@...il.com>, Samuel Holland <samuel@...lland.org>,
	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>, Liu Ying <victor.liu@....com>, Chun-Kuang Hu
	<chunkuang.hu@...nel.org>, Philipp Zabel <p.zabel@...gutronix.de>, Matthias
	Brugger <matthias.bgg@...il.com>, AngeloGioacchino Del Regno
	<angelogioacchino.delregno@...labora.com>, Rob Clark
	<robin.clark@....qualcomm.com>, Dmitry Baryshkov <lumag@...nel.org>, Abhinav
	Kumar <abhinav.kumar@...ux.dev>, Jessica Zhang <jesszhan0024@...il.com>,
	Sean Paul <sean@...rly.run>, Marijn Suijten <marijn.suijten@...ainline.org>,
	Sandy Huang <hjc@...k-chips.com>, Heiko Stübner
	<heiko@...ech.de>, Andy Yan <andy.yan@...k-chips.com>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-sunxi@...ts.linux.dev,
	linux-mediatek@...ts.infradead.org, linux-arm-msm@...r.kernel.org,
	freedreno@...ts.freedesktop.org, linux-rockchip@...ts.infradead.org
Subject: Re: [PATCH v4 02/10] drm/vc4: hdmi: implement clear_infoframe

On 26.01.2026 18:42, Marek Szyprowski wrote:
> On 07.01.2026 19:14, Dmitry Baryshkov wrote:
>> Implement the clear_infoframe callback, disabling corresponding
>> InfoFrame type.
>>
>> Acked-by: Maxime Ripard <mripard@...nel.org>
>> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
>
> This patch landed recently in linux-next as commit 3a4ceb89a972 
> ("drm/vc4: hdmi: implement clear_infoframe"). In my tests I found that 
> it causes the following regression on Qualcomm RB5 board:
>
Please ignore my report, it looks that automated bisecting got a bit 
confused.

Best regards
-- 
Marek Szyprowski, PhD
Samsung R&D Institute Poland