From: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
To: 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>,
Tomi Valkeinen <tomi.valkeinen@ti.com>,
Boris Brezillon <boris.brezillon@collabora.com>,
Sam Ravnborg <sam@ravnborg.org>,
Sebastian Reichel <sebastian.reichel@collabora.com>,
Yongxing Mou <yongxing.mou@oss.qualcomm.com>,
Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/2] drm/bridge: display-connector: detect DP state if cable is plugged on boot
Date: Mon, 08 Jun 2026 09:49:40 +0300 [thread overview]
Message-ID: <178090138005.36483.18093415635803962846.b4-ty@b4> (raw)
In-Reply-To: <20260314-dp-connector-hpd-v1-0-786044cedc17@oss.qualcomm.com>
On Sat, 14 Mar 2026 02:43:10 +0200, Dmitry Baryshkov wrote:
> Unlike the USB-C AltMode handling and unlike the DP controller handling
> the HPD on its own, if the display-connector is being used to handle the
> HPD pin, DP controller might not be able to get either the HPD
> notification nor detect the cable state if the cable is plugged in
> before the system has booted.
>
> Make the display-connector send the HPD notifications during system
> startup for DisplayPort connectors.
>
> [...]
Applied to drm-misc-next, thanks!
[1/2] drm/bridge: display-connector: don't autoenable HPD IRQ
commit: 8e9c475060bff87077cfa3bd42011edcb7fb3b0d
[2/2] drm/bridge: display-connector: trigger initial HPD event for DP
commit: 60dc0946bbad3eef8bc66a5a8b09b98dbc6e09c0
Best regards,
--
With best wishes
Dmitry
prev parent reply other threads:[~2026-06-08 6:49 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-14 0:43 Dmitry Baryshkov
2026-03-14 0:43 ` [PATCH 1/2] drm/bridge: display-connector: don't autoenable HPD IRQ Dmitry Baryshkov
2026-03-14 0:43 ` [PATCH 2/2] drm/bridge: display-connector: trigger initial HPD event for DP Dmitry Baryshkov
2026-03-18 17:40 ` Laurent Pinchart
2026-03-25 4:21 ` Dmitry Baryshkov
2026-06-08 6:49 ` Dmitry Baryshkov [this message]
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