linux-kernel - Re: [RFC PATCH v2 03/13] bootsplash: Flush framebuffer after drawing

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Date:   Sun, 31 Dec 2017 12:53:26 +0000
From:   Alan Cox <gnomes@...rguk.ukuu.org.uk>
To:     Oliver Neukum <oneukum@...e.com>
Cc:     Daniel Vetter <daniel@...ll.ch>, Max Staudt <mstaudt@...e.de>,
        bernhard.rosenkranzer@...aro.org, dri-devel@...ts.freedesktop.org,
        philm@...jaro.org, michal@...kovi.net, b.zolnierkie@...sung.com,
        Stefan Dirsch <sndirsch@...e.com>,
        Takashi Iwai <tiwai@...e.com>, linux-fbdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH v2 03/13] bootsplash: Flush framebuffer after
 drawing

On Tue, 19 Dec 2017 15:07:53 +0100
Oliver Neukum <oneukum@...e.com> wrote:

> Am Dienstag, den 19.12.2017, 14:57 +0100 schrieb Daniel Vetter:
> > > Would you like me to extend the FB API or not?  
> > 
> > Yes. Well for real I'd like you to do kms, so maybe you need to explain
> > why exactly you absolutely have to use fbdev (aka which driver isn't
> > supported by drm that you want to enable this on).  
> 
> Hi,
> 
> those would be at a minimum efifb, vesafb, xenfb
> Those are obviously not sexy, but from a practical point of view
> they are the minimum you need to support.

I think it's more constructive to look at it the other way around. What
drivers do we have that actually need to be used which don't have DRM
equivalents - and how do we fix that instead ?

Alan