[PATCH v3 0/7] drm: sun4i: dsi: Convert drm bridge

From: Jagan Teki
Date: Sun Feb 14 2021 - 14:42:15 EST


This series convert Allwinner DSI controller to full functional
drm bridge driver for supporting slave panel, bridges.

Here, are the previous version changes[1].

The key concern about these changes is about kms hotplug which
indeed not compatible with bridge conversion. However, I did
try several ways to support hotplug with the bridge but it's
resulting in a deadlock where bind never attach bridge until
bridge pointer found and bridge pointer cannot found until bind
finishes. Any inputs on this would be appreciated.

[1] https://lwn.net/Articles/783127/

Any inputs?
Jagan.

Jagan Teki (7):
drm: sun4i: dsi: Use drm_of_find_panel_or_bridge
drm: sun4i: dsi: Add bridge support
drm: sun4i: dsi: Convert to bridge driver
drm: sun4i: dsi: Separate code for bridge pre_enable
drm: bridge: Queue the bridge chain instead of stacking
drm: sun4i: dsi: Use drm_panel_bridge, connector API
[DO NOT MERGE] ARM: dts: sun8i: bananapi-m2m: Enable S070WV20-CT16 panel

arch/arm/boot/dts/sun8i-r16-bananapi-m2m.dts | 85 ++++++++++++
drivers/gpu/drm/drm_bridge.c | 4 +-
drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c | 128 +++++++++----------
drivers/gpu/drm/sun4i/sun6i_mipi_dsi.h | 11 +-
4 files changed, 150 insertions(+), 78 deletions(-)

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2.25.1