On 4/28/21 11:49 AM, Jagan Teki wrote:
[...]
I just saw the note in the header of the driver that says that single
link mode is unsupported for the DSI84.
I have hardware with a single link display and if I set
ctx->lvds_dual_link = false it works just fine.
How is this supposed to be selected? Does it need an extra devicetree
property? And would you mind adding single-link support in the next
version or do you prefer adding it in a follow-up patch?
If this has to be supported I think the proper way would be to support
two output ports in the dts (e.g. lvds0_out, lvds1_out), in the same
way as supported by the 'advantech,idk-2121wr' panel.
Yes, this is why I asked to have the dual-link lvds in the bindings.
Agreed with Neil, this is what we discussed on my v3. Each of these 3
chips has its own compatible and supporting dual-link lvds and
dual-link dsi as to be done by 84/85 and 85 respectively.
I have a counter-proposal to this single/dual link LVDS panel handling,
maybe this should really be done using DRM_BUS_FLAG added to the panel,
to indicate whether it is single or dual link. Then the bridge can
figure that out, without any extra DT props.
Maybe I can push my configuration changes in gist if required?
Please summarize the v3 discussion, yes.
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