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

Eric Anholt eric at anholt.net
Fri May 19 12:33:13 PDT 2017


Philippe CORNU <philippe.cornu at st.com> writes:

> Add the bridge support, used by DSI host and HDMI/LVDS bridges.
>
> Signed-off-by: Philippe CORNU <philippe.cornu at st.com>

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.
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