lkml.org 
[lkml]   [2020]   [Feb]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 1/1] Support LVDS output on Allwinner A20
On Wed, Feb 12, 2020 at 01:53:45PM +0100, Maxime Ripard wrote:
> > > Side question, this will need some DT changes too, right?
> >
> > Hm, I agree. I think it would be reasonable to include LVDS0/1 pins
>
> That, but most importantly, the reset and clocks for the LVDS
> block. Also from looking at it, I'm not entirely sure that the TCON1
> has a LVDS output

I also have impression that LVDS is only supported on TCON0, but that's
mostly from this comment in sun4i_lvds.c:

/* The LVDS encoder can only work with the TCON channel 0 */

> do you have a board when you have been able to test it?

Yes, I have the hardware (Cubieboard 2) at hand, but I cannot change the
any physical connections on it. FWIW, it is https://openvario.org, the
device we are (painfully) trying to upgrade from old kernel-3.4 with
proprietary mali drivers to contemporary software.

> > and sample (but disabled) lvds panel,
>
> That's good for the sake of the example, but it shouldn't be in the
> same patch, it won't be merged.

I jave just submitted version 2 of the patches - set of 2 patches this
time. Addressed your comments, please take a look.


--
Andrey Lebedev aka -.- . -.. -.. . .-.
Software engineer
Homepage: http://lebedev.lt/

\
 
 \ /
  Last update: 2020-02-12 23:47    [W:0.095 / U:0.252 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site