The Rockchip DSI driver has had a number of bugs over time and has usually only worked by chance. A number of users have noticed that things regressed with commit 43c2de1002d2 ("drm/rockchip: dsi: move all lane config except LCDC mux to bind()"), although it was fixing several real issues of its own that had been present forever in the upstream driver (but notably, not in the downstream/BSP driver).
Patch 1 and 2 are the most important fixes here. See their description for more info.
While I'm at it, fix a few error handling and cleanup issues too.
Changes in v3: - New patch, to fix related PM issue discovered after patch 1
Changes in v2: - Clean up pm-runtime state in error cases. - Correct git hash for Fixes.
Brian Norris (4): drm/rockchip: dsi: Hold pm-runtime across bind/unbind drm/rockchip: dsi: Reconfigure hardware on resume() drm/rockchip: dsi: Fix unbalanced clock on probe error drm/rockchip: dsi: Disable PLL clock on bind error
.../gpu/drm/rockchip/dw-mipi-dsi-rockchip.c | 82 +++++++++++++------ 1 file changed, 59 insertions(+), 23 deletions(-)