Sergei Shtylyov <sergei.shtylyov@xxxxxxxxxxxxxxxxxx> writes: > (Resending as I couldn't find this message from January in the list archives.) > > Hello. > > We have a board which has Newhaven Display LCD [1] connected via a what > seems to be a custom 40-signal LCD connector. That connector includes (6-bit > per component) RGB signals, DISP, H/VSYNC, and the pixel clock signals; in > addition, there are I2C and IRQ signals. > Now we need to add support for this kind of connector to the R-Car DU > driver in order to get the LCD panel resolution from the device tree (see > drivers/gpu/drm/rcar-du/rcar_du_*con.c for the examples) and so we'd probably > need a new DRM_MODE_CONNECTOR_* constant in include/uapi/drm/drm_mode.h in > order to do that... Laurent advised me to ask for the opinions on the > dri-devel mailing list first, which I'm doing. :-) I just added the DPI connector/encoder type for this type of panel connection (even though the pinouts are different on all of the actual connectors). I think thta would make the most sense. I haven't updated libdrm for it yet, though. See https://cgit.freedesktop.org/~airlied/linux/commit/?h=drm-next&id=0b27c02a7f1c697694f2ad6d6517e7dbf9ecfa39 for the commit
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