[drm:drm_bridge_attach] *ERROR* failed to attach bridge /bus@56220000/dsi_host@56228000 to encoder DSI-89: -517
i used imx8qxp ,mipi output and a bridge chip sn65dsi86 convert to edp ,get this error
the test mode of sn65dsi86 colorbar IS succeed。but mipi signal not work, i check the log find the error Up.
How to solve this problem ,Or how to conduct further investigation,Many thanks
DTS is:
Hi @sean33996
Have you tried to modify the sn65dsi86 driver?Try to move xxx_mipi_dsi_host_attach to xxxx_bridge_attach.
i get the DSI signal by oscilloscope
and the sn65dsi86 color bar is succes on the screen
but the dsi signal can not on the screen
Could you give me some advice
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1.Check dts setting with your hardware design again
2.You can use i2ctool to dump sn65dsi86 registers and check if there is any error flags.
thank you very much , it works
Could you tell me more details, where you modified?