[i.MX8MP] eDP panel does not working

hwkwon1 — Fri, 26 Jul 2024 04:02:13 GMT

Dear NXP Community

We configured the board as follows.

[H/W]

AP : i.MX8M plus

MIPI to eDP bridge IC : TI sn65dsi86

Panel : 11.6” edp panel

schematic : schematic.png attached

[S/W]

Kernel Version : 6.6.23

used dts file : imx8mp-evk.dts attached

sn65dsi86 i2c communication working good.

[Problem]

The edp panel does not work because the MIPI DSI signal is not appear while print the message below.

[1.615425] [drm:drm_bridge_attach] *ERROR* failed to attach bridge /soc@0/bus@32c00000/mipi_dsi@32e60000 to encoder DSI-34: -19

[1.627019] imx_sec_dsim_drv 32e60000.mipi_dsi: Failed to attach bridge: 32e60000.mipi_dsi

[1.635301] imx_sec_dsim_drv 32e60000.mipi_dsi: failed to bind sec dsim bridge: -19

[1.642973] imx-drm display-subsystem: bound 32e60000.mipi_dsi (ops imx_sec_dsim_ops)

Please help me solve the problem.

Best Regards,

Kwon

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