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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: Fri, 21 May 2021 18:53:18 +0200	[thread overview]
Message-ID: <3a6f9235-5375-b2cb-2d63-a47c5f9752bb@suse.de> (raw)
In-Reply-To: <YKfS2GDCXPJ/q8gT@phenom.ffwll.local>


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Hi

Am 21.05.21 um 17:33 schrieb Daniel Vetter:
> On Fri, May 21, 2021 at 03:19:10PM +0200, Javier Martinez Canillas wrote:
>> Framebuffer devices that are registered by DRM drivers for fbdev emulation
>> have a "drmfb" suffix in their name. But makes them to be quite confusing
>> if a driver already has "drm" in its name:
>>
>> $ cat /proc/fb
>> 0 rockchipdrmdrmfb
>>
>> $ cat /proc/fb
>> 0 simpledrmdrmfb
>>
>> Instead, let's just add a "-fb" suffix to denote that are DRM drivers FB:
>>
>> $ cat /proc/fb
>> 0 rockchipdrm-fb
>>
>> $ cat /proc/fb
>> 0 simpledrm-fb
>>
>> Suggested-by: Peter Robinson <pbrobinson@gmail.com>
>> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
> 
> 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 ...

Why do we need a suffix anyway?

> -Daniel
> 
>> ---
>>
>>   drivers/gpu/drm/drm_fb_helper.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
>> index f6baa204612..bbaff92c509 100644
>> --- a/drivers/gpu/drm/drm_fb_helper.c
>> +++ b/drivers/gpu/drm/drm_fb_helper.c
>> @@ -1737,7 +1737,7 @@ void drm_fb_helper_fill_info(struct fb_info *info,
>>   			       sizes->fb_width, sizes->fb_height);
>>   
>>   	info->par = fb_helper;
>> -	snprintf(info->fix.id, sizeof(info->fix.id), "%sdrmfb",
>> +	snprintf(info->fix.id, sizeof(info->fix.id), "%s-fb",
>>   		 fb_helper->dev->driver->name);
>>   
>>   }
>> -- 
>> 2.31.1
>>
> 

-- 
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:[~2021-05-21 16:53 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 [this message]
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
2021-05-25 13:52             ` Javier Martinez Canillas

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