On Fri, Apr 23, 2021 at 01:24:40PM -0400, Jonathan Marek wrote:

Document qcom,dsi-phy-cphy-mode option, which can be used to control
whether DSI will operate in D-PHY (default) or C-PHY mode.

Given this is a standard MIPI thing, I think this needs to be a common 
property. We already have phy bindings that use the phy cells to set the 
phy type which I think you should use here. See 
include/dt-bindings/phy/phy.h.

Signed-off-by: Jonathan Marek <redacted>
---
 Documentation/devicetree/bindings/display/msm/dsi.txt | 1 +
 1 file changed, 1 insertion(+)

Note that this file is in the process of being converted to schema. 
That's been going on for at least the last year... :(