Re: Raspberry Pi 3 Model B+ hangs in vc4_hdmi_runtime_resume() - Marc Kleine-Budde

From: Marc Kleine-Budde <mkl@pengutronix.de>
To: Stefan Wahren <stefan.wahren@i2se.com>
Cc: dri-devel@lists.freedesktop.org,
	Maxime Ripard <maxime@cerno.tech>, Emma Anholt <emma@anholt.net>,
	linux-rpi-kernel@lists.infradead.org
Subject: Re: Raspberry Pi 3 Model B+ hangs in vc4_hdmi_runtime_resume()
Date: Mon, 26 Sep 2022 14:40:48 +0200	[thread overview]
Message-ID: <20220926124048.i3lxy4lvtq756trp@pengutronix.de> (raw)
In-Reply-To: <63b460d1-4e2f-b0f1-836d-9178bb19f609@i2se.com>

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On 26.09.2022 14:08:04, Stefan Wahren wrote:
> Hi Marc,
> 
> Am 26.09.22 um 12:21 schrieb Marc Kleine-Budde:
> > On 22.09.2022 17:06:00, Maxime Ripard wrote:
> > > > I'm on a Raspberry Pi 3 Model B+ running current Debian testing ARM64,
> > > > using Debian's v5.19 kernel (Debian's v5.18 was working flawless).
> > > > 
> > > > | [    0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]
> > > > | [    0.000000] Linux version 5.19.0-1-arm64 (debian-kernel@lists.debian.org) (gcc-11 (Debian 11.3.0-5) 11.3.0, GNU ld (GNU Binutils for Debian) 2.38.90.20220713) #1 SMP Debian 5.19.6-1 (2022-0
> > > > 9-01)
> > > > | [    0.000000] Machine model: Raspberry Pi 3 Model B+
> > > > | [    3.747500] raspberrypi-firmware soc:firmware: Attached to firmware from 2022-03-24T13:21:11
> > > > 
> > > > As soon a the vc4 module is loaded the following warnings hits 4
> > > > times, then the machine stops.
> > [...]
> > 
> > > The warning itself is fixed, both upstream and in stable (5.19.7).
> > Ok. Debian is using 5.19.6
> > 
> > > It shouldn't have any relation to the hang though. Can you share your
> > > setup?
> > - config.txt:
> > 
> > -------->8-------->8-------->8-------->8--------
> > gpu_mem=16
> > disable_splash=1
> > 
> > arm_64bit=1
> > enable_uart=1
> > uart_2ndstage=1
> > 
> > os_prefix=/u-boot/
> > 
> > [pi3]
> > force_turbo=1
> > -------->8-------->8-------->8-------->8--------
> > 
> > - Raspberry Pi 3 Model B+
> > - no HDMI connected
> 
> Does it mean, the issue only occurs without HDMI connected?
> If you didn't test with HDMI yet, could you please do?

The error occurs with HDMI not connected, as vc4 is the gfx driver I
thought this might be of interest. :)

I don't have a HDMI monitor here, but I'll come back to you as soon as I
get access to one (might take some time).

Marc

-- 
Pengutronix e.K.                 | Marc Kleine-Budde           |
Embedded Linux                   | https://www.pengutronix.de  |
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