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

Cristian Ciocaltea cristian.ciocaltea at collabora.com
Thu Jan 15 08:24:42 PST 2026


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 at collabora.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




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