[patch v2 00/10] rk3399 (Pinebook pro) EDP support

Alper Nebi Yasak
2020-10-27T22:19:22Z

On 27/10/2020 16:21, Arnaud Patard (Rtp) wrote:
> This patchset add support for the rk3399 eDP. It has been tested on the pinebook
> pro and Google Kevin chromeos devices.
>
> The changes have been written by studying the linux code, since I didn't find any
> manual for theses part of the RK3399 SoC.
>
> For Kevin devices, this patchset is needed:
> https://patchwork.ozlabs.org/project/uboot/list/?series=209553

(Arnaud's patchset does not depend on any of mine, they are AFAIK
independently applicable)

That series is not enough though -- gru-kevin isn't even upstream.
Here's my git branch I tested (with success) on it including ugly hacks
and patches not sent/sendable to the mailing lists yet:

https://github.com/alpernebbi/u-boot/commits/rk3399-gru-kevin/wip

Here's another branch that I'm keeping up-to-date for gru-bob with
analogous changes, but I cannot test it myself:

https://github.com/alpernebbi/u-boot/commits/rk3399-gru-bob-edp/wip

Those contain this version of this series now, and should make this
series testable by people having one of the two chromebooks.

> On the linux kernel side, on recent kernels, it needs commit "pwm: rockchip: Keep
> enabled PWMs running while probing" otherwise the pinebook pro will freeze when probing
> the display.
>
> Changes since v2:
> - Add reset support for the VOP and eDP. This was needed and it appears to also solve
> the issue with warm reset.
> - Fix a debug string in the vop driver
> - Drop the patch "drivers/video/rockchip/rk_edp.c: Change clock rate".
> - Address various comments
>