[REGRESSION][BISECTED] No display on rk3399-gru-kevin

[Vicente Bergas]

Hello,
there are two issues that result on a black screen on the rk3399-gru-kevin.

The first one is due to:
c8079f83e0bf312645050c17d9c87deb707369c1
gpio: rockchip: convert to dynamic GPIO base allocation

Reverting this does not fix the problem as there is a second one:
51eb548ade20158b4f4f8693a95b1f31a2480e8e
drm/bridge: analogix_dp: Apply DP helper API drm_dp_channel_eq_ok()

That second one depends on:
d84b087c7662dd65cd51b228219987c31b1cee02
drm/bridge: analogix_dp: Apply DP helper APIs to get adjusted voltages
and pre-emphasises

Reverting all three commits from v7.1 make the display work again.

Please, can this be resolved?

Regards,
  Vicente.