linux-kernel - Re: [PATCH v3 08/10] drm/display: hdmi_state_helper: don't generate unsupported InfoFrames

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Message-ID: <2cc04e3f503dc7ed74d8faade50cf69c@kernel.org>
Date: Wed, 07 Jan 2026 12:57:29 +0000
From: "Maxime Ripard" <mripard@...nel.org>
To: "Dmitry Baryshkov" <dmitry.baryshkov@....qualcomm.com>
Cc: dri-devel@...ts.freedesktop.org, freedreno@...ts.freedesktop.org, linux-arm-kernel@...ts.infradead.org, linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org, linux-mediatek@...ts.infradead.org, linux-rockchip@...ts.infradead.org, linux-sunxi@...ts.linux.dev, "Abhinav
 Kumar" <abhinav.kumar@...ux.dev>, "Andrzej Hajda" <andrzej.hajda@...el.com>, "Andy
 Yan" <andy.yan@...k-chips.com>, "AngeloGioacchino Del Regno" <angelogioacchino.delregno@...labora.com>, "Chen-Yu
 Tsai" <wens@...nel.org>, "Chun-Kuang Hu" <chunkuang.hu@...nel.org>, "Dave
 Stevenson" <dave.stevenson@...pberrypi.com>, "David Airlie" <airlied@...il.com>, "Dmitry
 Baryshkov" <lumag@...nel.org>, Heiko Stübner <heiko@...ech.de>, "Jernej
 Skrabec" <jernej.skrabec@...il.com>, "Jessica Zhang" <jesszhan0024@...il.com>, "Jonas
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 Ying" <victor.liu@....com>, "Maarten Lankhorst" <maarten.lankhorst@...ux.intel.com>, "Marijn
 Suijten" <marijn.suijten@...ainline.org>, "Matthias Brugger" <matthias.bgg@...il.com>, "Maxime
 Ripard" <mripard@...nel.org>, Maíra Canal <mcanal@...lia.com>, "Neil
 Armstrong" <neil.armstrong@...aro.org>, "Philipp Zabel" <p.zabel@...gutronix.de>, "Raspberry
 Pi Kernel Maintenance" <kernel-list@...pberrypi.com>, "Rob Clark" <robin.clark@....qualcomm.com>, "Robert
 Foss" <rfoss@...nel.org>, "Samuel Holland" <samuel@...lland.org>, "Sandy
 Huang" <hjc@...k-chips.com>, "Sean Paul" <sean@...rly.run>, "Simona Vetter" <simona@...ll.ch>, "Thomas
 Zimmermann" <tzimmermann@...e.de>
Subject: Re: [PATCH v3 08/10] drm/display: hdmi_state_helper: don't generate
 unsupported InfoFrames

On Wed, 24 Dec 2025 03:02:57 +0200, Dmitry Baryshkov wrote:
> There is little point in generating InfoFrames which are not supported
> by the driver. Skip generating the unsupported InfoFrames, making sure
> that the kernel never tries to write the unsupported frame. As there are
> no remaining usecases, change write_infoframe / clear_infoframe helpers
> return an error if the corresponding callback is NULL.
> 
> [ ... ]

Acked-by: Maxime Ripard <mripard@...nel.org>

Thanks!
Maxime