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SubjectRe: Re: [PATCH] drm/mediatek: Add MTK Framebuffer-Device (mt7623)
On Thu, Jan 10, 2019 at 08:01:37PM +0100, Frank Wunderlich wrote:
> Hi Daniel,
> > > Would be good to use the new generic fbdev emulation code here, for even
> > > less code. Or at least know why this isn't possible to use for mtk (and
> > > maybe address that in the core code). Hand-rolling fbdev code shouldn't be
> > > needed anymore.
> >
> > Back on the mailing list, no private replies please:
> i don't wanted to spam all people with dumb questions ;)

There's no dumb questions, only insufficient documentation :-)

> > For examples please grep for drm_fbdev_generic_setup(). There's also a
> > still in-flight series from Gerd Hoffmann to convert over bochs. That,
> > plus all the kerneldoc linked from there should get you started.
> > -Daniel
> this is one of google best founds if i search for drm_fbdev_generic_setup:
> not very helpful...
> so i tried kernel-doc
> which is nice function-reference but i've found no generic workflow
> as the posted driver is "only" a driver ported from kernel 4.4 by Alexander, i don't know if this new framework can be used and which parts need to be changed. I only try to bring his code Mainline....
> Maybe CK Hu can help here because driver is originally from him and he knows internals. Or maybe you can help here?
> i personally make my first steps as spare-time kernel-developer :)

There's a ton of in-kernel users of that function already, I meant you can
use those to serve as examples ... If those + the kerneldoc aren't
good enough, then we need to improve them.
Daniel Vetter
Software Engineer, Intel Corporation

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