[U-Boot] [PATCH v4 0/16] tegra: Add display driver and LCD support for Seaboard

[Stephen Warren]

On 10/03/2012 11:05 AM, Stephen Warren wrote:
> On 09/27/2012 06:44 PM, Simon Glass wrote:
>> This series adds support for the Tegra2x's display peripheral. This
>> supports the LCD display on Seaboard and we use this to enable console
>> output in U-Boot on the LCD.
...
> 2) The display works fine for cold boot, or hitting the physical reset
> button, but when I execute "reset" at the U-Boot prompt, or "reboot"
> within Linux, the display is messed up; it looks like the LCD isn't able
> to sync to the timings sent by the display controller or something similar.
> 
> Since this is slightly a corner case, it may be OK to fix it later (but
> not much later; reboot is very useful to me.)

A couple more points:

BTW, I tried the same tests on Springbank which is basically Seaboard
with a slightly different PCB layout, and didn't see this issue. That
leads me to suspect some timing issue interacting with the panel, which
I believe is different albeit theoretically compatible
resolution/scan-timing wise.

Second, I first applied Tom's Tegra30 patches and tested those, then
applied your LCD series. The LCD series as-is breaks compilation of the
Tegra30 support. I have no idea which order Tom might apply these in,
but this is a heads-up there will be conflicts and one needs to be
rebased on top of the other.