linux-kernel - [PATCH 0/2] Hotplug detection fixup on Rockchip DW HDMI QP

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20260115-dw-hdmi-qp-hpd-v1-0-e59c166eaa65@collabora.com>
Date: Thu, 15 Jan 2026 18:24:42 +0200
From: Cristian Ciocaltea <cristian.ciocaltea@...labora.com>
To: Sandy Huang <hjc@...k-chips.com>, 
 Heiko Stübner <heiko@...ech.de>, 
 Andy Yan <andy.yan@...k-chips.com>, 
 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>
Cc: kernel@...labora.com, dri-devel@...ts.freedesktop.org, 
 linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org, 
 linux-kernel@...r.kernel.org
Subject: [PATCH 0/2] Hotplug detection fixup on Rockchip DW HDMI QP

The threaded interrupt handler on RK3576 responsible for providing the
HDMI HPD capability is currently unreliable, since it's affected by a
bug leading to a broken hotplug detection in some cases.

RK3588 is affected by a similar implementation deficiency, however it
doesn't seem to cause any functional breakage.

The series aims to fix the RK3576 HPD issue and optimize HPD handling on
RK3588.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@...labora.com>
---
Cristian Ciocaltea (2):
      drm/rockchip: dw_hdmi_qp: Fix RK3576 HPD interrupt handling
      drm/rockchip: dw_hdmi_qp: Optimize RK3588 HPD interrupt handling

 drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)
---
base-commit: 9b7977f9e39b7768c70c2aa497f04e7569fd3e00
change-id: 20260115-dw-hdmi-qp-hpd-142881a8d81a