AnsweredAssumed Answered

Unable to set MIPI DSI display as a secondary display

Question asked by Bala Subramaniyam on Mar 13, 2018
Latest reply on Mar 15, 2018 by Bala Subramaniyam


I am using Linux imx-4.1.15-2.0.0_ga release and Yocto Krogoth build.


Now I'm trying to support both HDMI (primary)display and the MIPI DSI (secondary) display for iMX6-Quad.


When I set MIPI DSI as a primary display, I can able to access the HDMI(secondary).

But when I set HDMI as a primary display, MIPI DSI is failed to create the video mode.


Error log:

[ 0.516472] mxc_mipi_dsi 21e0000.mipi: i.MX MIPI DSI driver probed
[ 0.516592] MIPI DSI driver module loaded
[ 0.518934] mxc_hdmi 20e0000.hdmi_video: Detected HDMI controller 0x13:0xa:0xa0:0xc1
[ 0.518965] fbcvt: 1920x1080@60: CVT Name - 2.073M9
[ 0.519112] mxc_sdc_fb fb@0: di_pixfmt:0x33424752, bpp:0x18, di:0, ipu:0
[ 0.519126] mxc_sdc_fb fb@0: registered mxc display driver hdmi
[ 0.573565] imx-ipuv3 2400000.ipu: IPU DMFC DP HIGH RESOLUTION: 1(0,1), 5B(2~5), 5F(6,7)
[ 0.670591] Console: switching to colour frame buffer device 240x67
[ 0.720000] fbcvt: 1920x1080@60: CVT Name - 2.073M9
[ 0.720039] mxc_mipi_dsi 21e0000.mipi: failed to add videomode.
[ 0.720050] mxc_mipi_dsi 21e0000.mipi: failed to init mipi dsi lcd
[ 0.720063] mxc_sdc_fb fb@1: di_pixfmt:0x33424752, bpp:0x18, di:1, ipu:0
[ 0.720072] mxc_sdc_fb fb@1: registered mxc display driver mipi_dsi


Is it a limitation for MIPI DSI, it can access only in a primary display.


Best regards,