[PATCH v2] drm/tegra: Remove existing framebuffer only if we support display

Javier Martinez Canillas javierm at redhat.com
Mon Feb 26 11:36:11 UTC 2024


Thomas Zimmermann <tzimmermann at suse.de> writes:

> Hi
>
> Am 23.02.24 um 16:03 schrieb Thierry Reding:
>> From: Thierry Reding <treding at nvidia.com>
>>
>> Tegra DRM doesn't support display on Tegra234 and later, so make sure
>> not to remove any existing framebuffers in that case.
>>
>> v2: - add comments explaining how this situation can come about
>>      - clear DRIVER_MODESET and DRIVER_ATOMIC feature bits
>>
>> Signed-off-by: Thierry Reding <treding at nvidia.com>
>
> Makes sense as far as the aperture helpers are concerned.
>
> Reviewed-by: Thomas Zimmermann <tzimmermann at suse.de>
>

I believe this is drm-misc-fixes material. Since the tegra DRM will remove
simple{fb,drm} for Tegra234, even when the driver does not support display
on that platform, leaving the system with no display output at all.

Are you going to push this patch or is going to be done by Thierry?

> Best regards
> Thomas
>

-- 
Best regards,

Javier Martinez Canillas
Core Platforms
Red Hat



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