Quoting Philip Chen (2021-10-29 15:27:41)

MSM DSI host driver actually parses "data-lanes" in DT and compare
it with the number of DSI lanes the bridge driver sets for
mipi_dsi_device. So we need to always specify "data-lanes" for the
DSI host output. As of now, "data-lanes" is added to ti-sn65dsi86 dts
fragment, but missing in parade-ps8640 dts fragment, which requires
a fixup.

Since we'll do 4-lane DSI regardless of which bridge chip is used,
instead of adding "data-lanes" to parade-ps8640 dts fragment, let's
just move "data-lanes" from the bridge dts to sc7180-trogdor.dtsi.

Signed-off-by: Philip Chen <redacted>
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Reviewed-by: Stephen Boyd <redacted>