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From: Daniel Stone <daniel@fooishbar.org>
To: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Cc: "Andrzej Hajda" <andrzej.hajda@intel.com>,
	"Neil Armstrong" <neil.armstrong@linaro.org>,
	"Robert Foss" <rfoss@kernel.org>,
	"Laurent Pinchart" <Laurent.pinchart@ideasonboard.com>,
	"Jonas Karlman" <jonas@kwiboo.se>,
	"Jernej Skrabec" <jernej.skrabec@gmail.com>,
	"Maarten Lankhorst" <maarten.lankhorst@linux.intel.com>,
	"Maxime Ripard" <mripard@kernel.org>,
	"Thomas Zimmermann" <tzimmermann@suse.de>,
	"David Airlie" <airlied@gmail.com>,
	"Simona Vetter" <simona@ffwll.ch>,
	"Sandy Huang" <hjc@rock-chips.com>,
	"Heiko Stübner" <heiko@sntech.de>,
	"Andy Yan" <andy.yan@rock-chips.com>,
	"Chen-Yu Tsai" <wens@csie.org>,
	"Samuel Holland" <samuel@sholland.org>,
	"Dave Stevenson" <dave.stevenson@raspberrypi.com>,
	"Maíra Canal" <mcanal@igalia.com>,
	"Raspberry Pi Kernel Maintenance" <kernel-list@raspberrypi.com>,
	"Liu Ying" <victor.liu@nxp.com>,
	"Rob Clark" <robin.clark@oss.qualcomm.com>,
	"Dmitry Baryshkov" <lumag@kernel.org>,
	"Abhinav Kumar" <abhinav.kumar@linux.dev>,
	"Jessica Zhang" <jessica.zhang@oss.qualcomm.com>,
	"Sean Paul" <sean@poorly.run>,
	"Marijn Suijten" <marijn.suijten@somainline.org>,
	dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev,
	linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org
Subject: Re: [PATCH v3 00/11] drm/connector: hdmi: limit infoframes per driver capabilities
Date: Sat, 30 Aug 2025 09:30:01 +0200	[thread overview]
Message-ID: <CAPj87rNDtfEYV88Ue0bFXJwQop-zy++Ty7uQ9XfrQ2TbAijeRg@mail.gmail.com> (raw)
In-Reply-To: <20250830-drm-limit-infoframes-v3-0-32fcbec4634e@oss.qualcomm.com>

Hi Dmitry,

On Sat, 30 Aug 2025 at 02:23, Dmitry Baryshkov
<dmitry.baryshkov@oss.qualcomm.com> wrote:
> It's not uncommon for the particular device to support only a subset of
> HDMI InfoFrames. It's not a big problem for the kernel, since we adopted
> a model of ignoring the unsupported Infoframes, but it's a bigger
> problem for the userspace: we end up having files in debugfs which do
> mot match what is being sent on the wire.
>
> Sort that out, making sure that all interfaces are consistent.

Thanks for the series, it's a really good cleanup.

I know that dw-hdmi-qp can support _any_ infoframe, by manually
packing it into the two GHDMI banks. So the supported set there is
'all of the currently well-known ones, plus any two others, but only
two and not more'. I wonder if that has any effect on the interface
you were thinking about for userspace?

Cheers,
Daniel


  parent reply	other threads:[~2025-08-30  7:33 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-30  0:22 [PATCH v3 00/11] drm/connector: hdmi: limit infoframes per driver capabilities Dmitry Baryshkov
2025-08-30  0:22 ` [PATCH v3 01/11] drm/connector: let drivers declare infoframes as unsupported Dmitry Baryshkov
2025-09-01  7:03   ` Maxime Ripard
2025-08-30  0:22 ` [PATCH v3 02/11] drm/bridge: adv7511: declare supported infoframes Dmitry Baryshkov
2025-09-01  7:12   ` Maxime Ripard
2025-09-02  3:13     ` Dmitry Baryshkov
2025-08-30  0:22 ` [PATCH v3 03/11] drm/bridge: ite-it6263: " Dmitry Baryshkov
2025-08-30  0:23 ` [PATCH v3 04/11] drm/bridge: lontium-lt9611: " Dmitry Baryshkov
2025-08-30  0:23 ` [PATCH v3 05/11] drm/bridge: synopsys/dw-hdmi-qp: " Dmitry Baryshkov
2025-08-30  7:30   ` Daniel Stone
2025-08-30  0:23 ` [PATCH v3 06/11] drm/msm: hdmi: " Dmitry Baryshkov
2025-08-30  0:23 ` [PATCH v3 07/11] drm/rockchip: rk3066: " Dmitry Baryshkov
2025-08-30 12:08   ` kernel test robot
2025-08-30  0:23 ` [PATCH v3 08/11] drm/display: bridge_connector: drop default list for HDMI Infoframes Dmitry Baryshkov
2025-08-30  0:23 ` [PATCH v3 09/11] drm/connector: verify that HDMI connectors support necessary InfoFrames Dmitry Baryshkov
2025-08-30  7:34   ` Daniel Stone
2025-08-30  0:23 ` [PATCH v3 10/11] drm/display: hdmi-audio: warn if HDMI connector doesn't support Audio IF Dmitry Baryshkov
2025-08-30  0:23 ` [PATCH v3 11/11] drm/bridge: lontium-lt9611uxc: switch to HDMI audio helpers Dmitry Baryshkov
2025-08-30  7:30 ` Daniel Stone [this message]
2025-08-30  7:38   ` [PATCH v3 00/11] drm/connector: hdmi: limit infoframes per driver capabilities Daniel Stone
2025-08-30 22:29   ` Dmitry Baryshkov
2025-08-31 13:46     ` Daniel Stone
2025-09-01  7:07     ` Maxime Ripard
2025-09-02  3:45       ` Dmitry Baryshkov
2025-09-02 18:06         ` Maxime Ripard
2025-09-03  0:03           ` Dmitry Baryshkov

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