From: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
To: "Sebastian Reichel" <sebastian.reichel@collabora.com>,
"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>,
"Sandy Huang" <hjc@rock-chips.com>,
"Heiko Stübner" <heiko@sntech.de>,
"Andy Yan" <andy.yan@rock-chips.com>
Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
linux-rockchip@lists.infradead.org, kernel@collabora.com
Subject: Re: [PATCH] drm/bridge: dw-hdmi-qp: Fix spurious IRQ on resume
Date: Wed, 15 Oct 2025 13:03:07 +0300 [thread overview]
Message-ID: <7291eff3-b259-4209-b150-cb220abc01ec@collabora.com> (raw)
In-Reply-To: <20251014-rockchip-hdmi-suspend-fix-v1-1-983fcbf44839@collabora.com>
On 10/14/25 7:00 PM, Sebastian Reichel wrote:
> 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: 128a9bf8ace2 ("drm/rockchip: Add basic RK3588 HDMI output support")
> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
LGTM, hence
Reviewed-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
next prev parent reply other threads:[~2025-10-15 10:03 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-14 16:00 [PATCH] drm/bridge: dw-hdmi-qp: Fix spurious IRQ on resume Sebastian Reichel
2025-10-15 10:03 ` Cristian Ciocaltea [this message]
2025-11-23 20:25 ` Heiko Stübner
2026-01-07 12:23 ` Heiko Stuebner
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