linux-kernel - Re: [PATCH v4 00/10] drm/connector: hdmi: limit infoframes per driver capabilities, second approach

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Message-ID: <176882185857.86521.18172781461760523152.b4-ty@oss.qualcomm.com>
Date: Mon, 19 Jan 2026 13:24:27 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: 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>,
        Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.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 00/10] drm/connector: hdmi: limit infoframes per driver capabilities, second approach

On Wed, 07 Jan 2026 20:14:57 +0200, Dmitry Baryshkov wrote:
> It's not uncommon for the particular device to support only a subset of
> HDMI InfoFrames. Currently it's mostly ignored by the framework: it
> calls write_infoframe() / clear_infoframe() callbacks for all frames and
> expects them to return success even if the InfoFrame is not supported.
> 
> Sort that out, making sure that all interfaces are consistent:
> - split function interfaces, having a pair of callbacks per each
>   InfoFrame type.
> - write_infoframe() / clear_infoframe() functions return -EOPNOTSUPP
>   for unsupported InfoFrames.
> - don't create and enable unsupported InfoFrames.
> - limit debugfs to provide supported InfoFrames only.
> 
> [...]

Applied to drm-misc-next, thanks!

[01/10] drm/tests: hdmi: check the infoframes behaviour
        commit: 7436a87db99d57196c49d10de35f41531993d5f1
[02/10] drm/vc4: hdmi: implement clear_infoframe
        commit: 3a4ceb89a9723088615ea1c960fc589f87caddb7
[03/10] drm/sun4i: hdmi_enc: implement clear_infoframe stub
        commit: 638409979c5f7d3155afcded67532003e07a7d0e
[04/10] drm/connector: make clear_infoframe callback mandatory for HDMI connectors
        commit: afc399f7a5ea7bf405b2ef85c7470529b1a9e47c
[05/10] drm/bridge: refactor HDMI InfoFrame callbacks
        commit: b626b1a1c9ccadd8861870a2a450f02e0c61ab88
[06/10] drm/display: hdmi_state_helper: split InfoFrame functions per type
        commit: e802c783be94bf71541a7e2ac8b1b5486aad10db
[07/10] drm/display: hdmi_state_helper: reject Audio IF updates if it's not supported
        commit: 1d8847f457648ed4932019dcd3081bc27bcea936
[08/10] drm/display: hdmi_state_helper: don't generate unsupported InfoFrames
        commit: 4fc30c2c5c61db88e3d6644bd3dd2032ec4bee06
[09/10] drm/display: bridge_connector: dynamically generate HDMI callbacks
        commit: ae219fdc952c315182b471f5aa71b379584b70ca
[10/10] drm/debug: don't register files for unsupported HDMI InfoFrames
        commit: 5a4e4e30f6dc4d2a68eec08257128906572f3346

Best regards,
-- 
With best wishes
Dmitry