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From: Thomas Zimmermann <tzimmermann@suse.de>
To: Javier Martinez Canillas <javierm@redhat.com>,
	linux-kernel@vger.kernel.org,
	Peter Robinson <pbrobinson@gmail.com>,
	David Airlie <airlied@linux.ie>,
	Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	Maxime Ripard <mripard@kernel.org>,
	dri-devel@lists.freedesktop.org
Subject: Re: [PATCH] drm/fb-helper: improve DRM fbdev emulation device names
Date: Tue, 25 May 2021 15:34:03 +0200	[thread overview]
Message-ID: <4e81ab57-a240-952a-7423-22dc830bc62f@suse.de> (raw)
In-Reply-To: <YKz2vbxYXSKQE1Ng@phenom.ffwll.local>


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Hi

Am 25.05.21 um 15:08 schrieb Daniel Vetter:
> On Fri, May 21, 2021 at 08:53:56PM +0200, Thomas Zimmermann wrote:
>> Hi
>>
>> Am 21.05.21 um 19:18 schrieb Javier Martinez Canillas:
>>> On 5/21/21 6:53 PM, Thomas Zimmermann wrote:
>>>
>>> [snip]
>>>
>>>>>
>>>>> So what with all the drivers which do _not_ have drm in their name? 
Also
>>>>> I'm never sure how much these are uapi or not ...
>>>>
>>>
>>> That someone could threat as an uapi is a fair point indeed.
>>>> Why do we need a suffix anyway?
>>>>
>>>
>>> Yes, I thought the same and was torn about posting a patch to just remove
>>> the suffix. I don't think users care that much if is a fb device from 
a
>>> fbdev driver or a DRM driver using the fbdev emulation.
>>
>> Yup. I don't see how anything in userspace would depend on the exact name;
>> especially since fbdev emulation only provides basic features. (I'd welcome
>> a counter examples that proves me wrong.)
>>
>> IMHO we can risk it to remove the suffix entirely. But that needs an ack
>> from Daniel or Dave.
> 
> If you guys with your distro hats on all think it doesn't matter, then
> yeah I'm all for dropping the somewhat silly -drm or drmfb suffixes. I
> think that was just way back so it's easier to know you've loaded the
> right driver, back when there was both drm and native fbdev drivers
> around. But now I think for new hw there's only drm, so should be all
> fine.

Suse doesn't use fbdev, except for some outliers; most notably hypervfb 
and generic efifb/vesafb. Both are now being replaced with drm code. 
 From what I've seen, it's the same for other distros. And X11 checks 
for the existence of device files anyway IIRC.

Best regards
Thomas

> -Daniel
> 

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer


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  reply	other threads:[~2021-05-25 13:34 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-21 13:19 Javier Martinez Canillas
2021-05-21 13:19 ` Javier Martinez Canillas
2021-05-21 15:33 ` Daniel Vetter
2021-05-21 15:33   ` Daniel Vetter
2021-05-21 16:53   ` Thomas Zimmermann
2021-05-21 17:18     ` Javier Martinez Canillas
2021-05-21 18:53       ` Thomas Zimmermann
2021-05-25 13:08         ` Daniel Vetter
2021-05-25 13:08           ` Daniel Vetter
2021-05-25 13:34           ` Thomas Zimmermann [this message]
2021-05-25 13:52             ` Javier Martinez Canillas

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