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Ortustech com43h4m78ulc MIPI-DSI display problem.

Question asked by Ivan Nikolaenko on Sep 2, 2015
Latest reply on Sep 18, 2015 by Ivan Nikolaenko

Hi all!

 

I try to integrate Ortustech com43h4m78ulc mipi-dsi display with MX6Q-SabreSD board.

I passed to kernel this command line:

console=ttymxc0,115200 root=/dev/mmcblk2p2 rootwait rw video=mxcfb0:dev=mipi_dsi,TRULY-WVGA,if=RGB24

ang got this errors while booting:

mxc_mipi_dsi 21e0000.mipi: i.MX MIPI DSI driver probed

mxc_sdc_fb fb.24: registered mxc display driver mipi_dsi

mxc_mipi_dsi 21e0000.mipi: mipi_dsi_pkt_read err:-5, data:0x0.

mxc_mipi_dsi 21e0000.mipi: MIPI DSI LCD not detected!

mxc_mipi_dsi 21e0000.mipi: failed to init mipi lcd.

mxc_sdc_fb fb.24: enable error, dispdrv:mipi_dsi.

detected fb_set_par error, error code: -22

mxc_sdc_fb fb.24: Error fb_set_var ret:-22

mxc_sdc_fb: probe of fb.24 failed with error -22

 

I found that error appears in mxcfb_hx8369_wvga.c file, so, I disabled HX8369_ID check, but it did not help me.

I see

mxc_mipi_dsi 21e0000.mipi: i.MX MIPI DSI driver probed

mxc_sdc_fb fb.24: registered mxc display driver mipi_dsi

without errors, but the display is still black.

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