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
>
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