[PATCH v19 0/2] PS8640 MIPI-to-eDP bridge

[Matthias Brugger]

Hi Uli,

On 04/10/2019 21:09, Ulrich Hecht wrote:
> Hi!
> 
> This driver seems to have fallen by the wayside because, while otherwise
> fine, it has a firmware update feature that requires a blob that is not in
> the linux-firmware repo.[1]
> 
> Whatever the cause for that may be, the update code is entirely optional
> (my chip works fine with whatever firmware is currently installed), so I
> have removed it in order to get this merged after all. I have also
> followed various trivial API changes that have piled up since 2016; see
> the individual patches for details.
> 
> I'm using this driver on an Acer Chromebook R13 ("Elm"); see
> https://github.com/uli/kernel/tree/elm-working-5.4.
> 

Thanks for your effort to get things upstream.
I just tried your branch on my R13. I had to do a trivial config change I had to
do, as I don't have and care about the bluetooth FW right now.
But after that my screen keeps black. I was able to build and boot
elm-working-5.3 and elm-working-5.2.

Unfortunatley I don't have a serial console on the Chromebook, so it's difficult
to find out where it hangs. Can you please double check if your new
elm-working-5.4 actually really works?

Thanks,
Matthias

> CU
> Uli
> 
> [1] https://patchwork.kernel.org/patch/9427543/
> 
> Jitao Shi (2):
>   Documentation: bridge: Add documentation for ps8640 DT properties
>   drm/bridge: Add I2C based driver for ps8640 bridge
> 
>  .../devicetree/bindings/display/bridge/ps8640.txt  |  44 ++
>  drivers/gpu/drm/bridge/Kconfig                     |  12 +
>  drivers/gpu/drm/bridge/Makefile                    |   1 +
>  drivers/gpu/drm/bridge/parade-ps8640.c             | 672 +++++++++++++++++++++
>  4 files changed, 729 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/bridge/ps8640.txt
>  create mode 100644 drivers/gpu/drm/bridge/parade-ps8640.c
>