RPi 4 deferred probe timeout of V3D PM domain

Mark Brown broonie at kernel.org
Fri Oct 31 05:39:09 PDT 2025


On Thu, Oct 30, 2025 at 09:12:57PM +0100, Marek Szyprowski wrote:
> On 30.10.2025 20:13, Stefan Wahren wrote:

> > Any ideas how to solve this?

> As I mentioned in the other thread, this is imho a configuration issue. 
> If core modules are distributed on NFS rootfs, then one should increase 
> deferred probe timeout by adding deferred_probe_timeout=60 to cmdline. 

Like I say I just don't think we should apply timeouts that take things
out of commision entirely.

> On the other hand drivers built into the kernel should not depend on the 
> resources provided by the drivers built as modules, so maybe it would 
> make sense to change CONFIG_CLK_RASPBERRYPI from 'm' to 'y' in 
> arch/arm64/configs/defconfig.

Or the GPU driver should be moved to a module to match the clock.
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