Re: [PATCH v2 1/5] drm/stm: ltdc: Add bridge support

Philippe CORNU [off-list ref] writes:

Add the bridge support, used by DSI host and HDMI/LVDS bridges.

Signed-off-by: Philippe CORNU <redacted>

The DW DSI host is bridging from MIPI DPI to MIPI DSI, right?  I think
you could just have ltdc always set up a DPI encoder (the
ltdc_rgb_encoder_create() function), and then depending on whether
drm_of_find_panel_or_bridge() finds you a panel or a bridge, you
drm_panel_attach() or drm_bridge_attach().

You wouldn't even need to wrap the drm_panel_prepare() and related calls
with a check for the panel, because the inlines already do that.