mirror-linux/include/drm/bridge
Sebastian Reichel 14adddc653 drm/bridge: dw-hdmi-qp: Fix spurious IRQ on resume
After resume from suspend to RAM, the following splash is generated if
the HDMI driver is probed (independent of a connected cable):

[ 1194.484052] irq 80: nobody cared (try booting with the "irqpoll" option)
[ 1194.484074] CPU: 0 UID: 0 PID: 627 Comm: rtcwake Not tainted 6.17.0-rc7-g96f1a11414b3 #1 PREEMPT
[ 1194.484082] Hardware name: Rockchip RK3576 EVB V10 Board (DT)
[ 1194.484085] Call trace:
[ 1194.484087]  ... (stripped)
[ 1194.484283] handlers:
[ 1194.484285] [<00000000bc363dcb>] dw_hdmi_qp_main_hardirq [dw_hdmi_qp]
[ 1194.484302] Disabling IRQ #80

Apparently the HDMI IP is losing part of its state while the system
is suspended and generates spurious interrupts during resume. The
bug has not yet been noticed, as system suspend does not yet work
properly on upstream kernel with either the Rockchip RK3588 or RK3576
platform.

Fixes: 128a9bf8ac ("drm/rockchip: Add basic RK3588 HDMI output support")
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Reviewed-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patch.msgid.link/20251014-rockchip-hdmi-suspend-fix-v1-1-983fcbf44839@collabora.com
2026-01-07 13:20:13 +01:00
..
analogix_dp.h drm/bridge: analogix_dp: Add support for RK3588 2025-04-21 01:27:10 +03:00
aux-bridge.h drm/bridge: aux-hpd-bridge: correct devm_drm_dp_hpd_bridge_add() stub 2024-05-11 13:02:14 +01:00
dw_dp.h drm/bridge: synopsys: Add DW DPTX Controller support library 2025-08-28 15:49:51 +03:00
dw_hdmi.h drm/bridge: imx: add driver for HDMI TX Parallel Audio Interface 2025-09-29 09:46:04 +08:00
dw_hdmi_qp.h drm/bridge: dw-hdmi-qp: Fix spurious IRQ on resume 2026-01-07 13:20:13 +01:00
dw_mipi_dsi.h
dw_mipi_dsi2.h drm/bridge/synopsys: Add MIPI DSI2 host controller bridge 2024-12-10 23:53:04 +01:00
imx.h drm/imx: add forward declarations for types 2024-10-09 17:39:49 +03:00
mhl.h
samsung-dsim.h drm/bridge: samsung-dsim: add driver support for exynos7870 DSIM bridge 2025-09-15 19:55:15 +09:00