From: Francesco Dolcini <francesco@dolcini.it>
To: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Cc: 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>,
Heikki Krogerus <heikki.krogerus@linux.intel.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
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>,
Adrien Grassein <adrien.grassein@gmail.com>,
Jani Nikula <jani.nikula@linux.intel.com>,
Rodrigo Vivi <rodrigo.vivi@intel.com>,
Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
Tvrtko Ursulin <tursulin@ursulin.net>,
Kevin Hilman <khilman@baylibre.com>,
Jerome Brunet <jbrunet@baylibre.com>,
Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
Rob Clark <robin.clark@oss.qualcomm.com>,
Dmitry Baryshkov <lumag@kernel.org>,
Abhinav Kumar <abhinav.kumar@linux.dev>,
Jessica Zhang <jesszhan0024@gmail.com>,
Sean Paul <sean@poorly.run>,
Marijn Suijten <marijn.suijten@somainline.org>,
Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>,
Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>,
Pengyu Luo <mitltlatltl@gmail.com>,
Nikita Travkin <nikita@trvn.ru>,
Yongxing Mou <yongxing.mou@oss.qualcomm.com>,
Luca Ceresoli <luca.ceresoli@bootlin.com>,
Francesco Dolcini <francesco@dolcini.it>,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
linux-usb@vger.kernel.org, intel-gfx@lists.freedesktop.org,
intel-xe@lists.freedesktop.org,
linux-amlogic@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org
Subject: Re: [PATCH v4 4/8] drm/bridge: pass extra events to the HPD callback
Date: Mon, 8 Jun 2026 10:39:11 +0200 [thread overview]
Message-ID: <20260608083911.GA35760@francesco-nb> (raw)
In-Reply-To: <20260608-hpd-irq-events-v4-4-30b62b335487@oss.qualcomm.com>
On Mon, Jun 08, 2026 at 12:33:05AM +0300, Dmitry Baryshkov wrote:
> The DisplayPort standard defines a special kind of HPD events called
> IRQ_HPD. These events are used to notify DP Source about the events on
> the Sink side.
>
> Bridge drivers report these events through the
> drm_bridge_hpd_notify_extra(). Pass down the extra status to the HPD
> callback, specified during the drm_bridge_hpd_enable(), letting
> underlying drivers (e.g. drm_bridge_connector) to receive these events.
>
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Acked-by: Francesco Dolcini <francesco.dolcini@toradex.com> # lt8912b
next prev parent reply other threads:[~2026-06-08 8:39 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-07 21:33 [PATCH v4 0/8] drm: handle IRQ_HPD events correctly Dmitry Baryshkov
2026-06-07 21:33 ` [PATCH v4 1/8] drm/connector: report out-of-band IRQ_HPD events Dmitry Baryshkov
2026-06-07 21:33 ` [PATCH v4 2/8] drm/connector: pass down IRQ_HPD to the drivers Dmitry Baryshkov
2026-06-07 21:33 ` [PATCH v4 3/8] drm/bridge: aux-hpd: let drivers pass IRQ_HPD events Dmitry Baryshkov
2026-06-07 21:33 ` [PATCH v4 4/8] drm/bridge: pass extra events to the HPD callback Dmitry Baryshkov
2026-06-08 8:39 ` Francesco Dolcini [this message]
2026-06-07 21:33 ` [PATCH v4 5/8] drm/bridge: pass down IRQ_HPD to the drivers Dmitry Baryshkov
2026-06-07 21:33 ` [PATCH v4 6/8] drm/msm: dp: handle the IRQ_HPD events reported by USB-C Dmitry Baryshkov
2026-06-07 21:33 ` [PATCH v4 7/8] soc: qcom: pmic-glink-altmode: pass down HPD_IRQ events Dmitry Baryshkov
2026-06-07 21:33 ` [PATCH v4 8/8] usb: typec: ucsi: huawei-gaokun: " Dmitry Baryshkov
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