Re: [PATCH 00/60] drm: Make all drivers to honour the nomodeset parameter

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Hello Laurent,

On 12/16/21 00:35, Laurent Pinchart wrote:

[snip]

>>
>> I've built tested with 'make allmodconfig && make M=drivers/gpu/drm/', but
>> only booted in a few devices with and without nomodeset in the cmdline. So
>> testing and reviewing for all the drivers would be highly appreciated.
> 
> The fact that the series is so big makes me think it would be better to
> handle this in the DRM core. Is there any way we could do so ? Otherwise
> we'll chase this issue forever in new drivers, and will be plagued with
> cargo cult problems.
> 

Yes, what Thomas suggested is to add a set of drm_module_{pci,platform}_driver()
macros in include/drm/drm_drv.h, that will just check whether the driver should
be registered or not and call the {pci,platform}_register_driver() functions.

That way the change in the drivers would just be something like the following:

-module_platform_driver(malidp_platform_driver);
+drm_module_platform_driver(malidp_platform_driver);

There are some drivers that still need a custom module init functions for various
reasons (e.g: register a set of devices/drivers, need to be a late init call, etc)
but at least for most drivers this should be handled transparently as long as they
use these drm_*_register_driver() macros.

So just ignore this series and I'll post a v2 soon.

Best regards,
-- 
Javier Martinez Canillas
Linux Engineering
Red Hat




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