[Letux-kernel] [BUG] SPI broken for SPI based panel drivers

[Pavel Machek]

On Mon 2020-11-30 15:13:02, Sven Van Asbroeck wrote:
> Hi Nikolaus, thank you for reaching out !
> 
> On Mon, Nov 30, 2020 at 2:06 PM H. Nikolaus Schaller <hns at goldelico.com> wrote:
> >
> > But reverting your patch brings back the display. So it appears as if it does not
> > fix a breakage, rather breaks a previously working setup.
> 
> The patch in question fixes an important breakage: before the patch, literally
> hundreds of SPI drivers no longer worked - only if the SPI bus master
> driver was using gpio descriptors.
> 
> We knew that there was a chance that our fix would break something else.
> But hopefully "it fixes more than it breaks"

If the patch causes regression it will ultimately need to be
reverted... no matter how much it fixes.

									Pavel
-- 
http://www.livejournal.com/~pavelmachek
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