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ISI Channel busy when use Maxim  9286

Question asked by yingjin yan on Jan 17, 2020
Latest reply on Feb 17, 2020 by yingjin yan

Hi NXP,

      When I use Maxim 9286 cameras on IMX8QM Android Platform, I found that the ISI Channel[0] busy problem. so the video0 of Maxim 9286 can't work.  the kernel the following error:

 

[   10.791356] [VPU Encoder]     enable mu for core[0]
[   10.803557] [VPU Encoder]     vpu encoder core[0] firmware version is 1.2.2
[   10.829160] type=1400 audit(1578477204.112:56): avc: denied { write } for pid=2074 comm="Binder:2074_2" name="uevent" dev="sysfs" ino=21342 scontext=u:r:vold:s0 tcontext=u:object_r:sysfs_block_devices:s0 tclass=file permissive=0
[   10.849572] type=1400 audit(1578477205.020:551): avc: denied { read } for pid=2160 comm="HwBinder:2160_1" name="u:object_r:ffs_prop:s0" dev="tmpfs" ino=8864 scontext=u:r:hal_usb_impl:s0 tcontext=u:object_r:ffs_prop:s0 tclass=file permissive=0
[   10.877862] YYJ ADD test 1 hpd status=1 cable connected
[   10.878431] (null): mxc_isi_capture_open: ISI channel[0] is busy
[   10.910499] i.mx8-hdp 56268000.hdmi: 0,ff,ff,ff,ff,ff,ff,0
[   10.916271] YYJ ADD test 1 hpd status=1 cable connected
[   10.948157] i.mx8-hdp 56268000.hdmi: 0,ff,ff,ff,ff,ff,ff,0
[   10.954184] YYJ ADD test 1 hpd status=1 cable connected
[   10.986147] i.mx8-hdp 56268000.hdmi: 0,ff,ff,ff,ff,ff,ff,0
[   11.751903] [drm] phy_cfg_hdp() num_lanes: 4, mode:1920x1080p60, color depth: 8-bit, encoding: 1
[   11.760905] [drm] Pixel clock frequency (148500 kHz) is supported in this color depth (8-bit). Settings found in row 2
[   11.771656] [drm] Character clock frequency: 148500 kHz.
[   11.777013] [drm] VCO frequency (2970000 kHz) is supported. Settings found in row 25
[   11.799982] [drm] CDN_API_General_Write_Register_blocking LANES_CONFIG ret = 0
[   11.869260] android_work: sent uevent USB_STATE=CONNECTED
[   11.890724] configfs-gadget gadget: high-speed config #1: b
[   11.907410] android_work: sent uevent USB_STATE=CONFIGURED
[   11.956148] capability: warning: `main' uses 32-bit capabilities (legacy support in use)
[   12.921310] init: processing action (vendor.all.system_server.start=1) from (/vendor/etc/init/hw/init.freescale.rc:112)

 

 

Any help to solve this problem will be highly appreciated.

 Best Regards

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