The mtk-dpi driver still uses the drm_encoder API which is now somewhat deprecated. We started to move all the Mediatek drivers to the drm_bridge API, like we did for the mtk-dsi driver [1], this is another small step to be able to fully convert the DRM Mediatek drivers to the drm_bridge API. A dummy drm_encoder is maintained in the mtk-dpi driver but the end goal is move all the dummy drm_encoder (mtk-dsi, mtk-dpi, etc) to the main mtk_drm_drv driver.
[1] https://lore.kernel.org/patchwork/project/lkml/list/?series=441559
Changes in v2: - Maintain error message when attach to bridge fails. (Boris) - Drop the third patch.
Enric Balletbo i Serra (2): drm/mediatek: mtk_dpi: Rename bridge to next_bridge drm/mediatek: mtk_dpi: Convert to bridge driver
drivers/gpu/drm/mediatek/mtk_dpi.c | 77 +++++++++++++++++------------- 1 file changed, 45 insertions(+), 32 deletions(-)